HelpDocs Archive - MyXrayDose https://myxraydose.com/docs/ Mon, 02 Dec 2024 03:11:11 +0000 en-US hourly 1 https://i0.wp.com/myxraydose.com/wp-content/uploads/2020/01/cropped-My_Xray_Dose_Favicon-32x32-1.png?fit=32%2C32&ssl=1 HelpDocs Archive - MyXrayDose https://myxraydose.com/docs/ 32 32 167553530 Upgrading ViewIQ https://myxraydose.com/docs/upgrading-viewiq/ https://myxraydose.com/docs/upgrading-viewiq/#respond Mon, 02 Dec 2024 02:51:10 +0000 https://myxraydose.com/?post_type=docs&p=6763 Uninstalling the old ViewIQ version In the Windows search bar, type “Add or remove programs” and open these settings Search for ViewIQ Click on the three dots and then select Uninstall The ViewIQ uninstaller should now open  Follow the instructions, but when the following window opens, select Yes (it may be hidden behind the installer […]

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Uninstalling the old ViewIQ version

  1. In the Windows search bar, type “Add or remove programs” and open these settings
  2. Search for ViewIQ
  3. Click on the three dots and then select Uninstall
  4. The ViewIQ uninstaller should now open 
  5. Follow the instructions, but when the following window opens, select Yes (it may be hidden behind the installer window)
  6. This ensures that the previous configuration is fully removed before installing the new version
  7. Complete the uninstallation 

Installing the new version of ViewIQ

  1. Run the ViewIQ-Setup-x.x.x.exe installer
  2. Follow all instructions
  3. When the installer closes, run ViewIQ from the newly created desktop icon 

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]]> https://myxraydose.com/docs/upgrading-viewiq/feed/ 0 6763 Adjusting calibration settings https://myxraydose.com/docs/adjusting-calibration-settings/ https://myxraydose.com/docs/adjusting-calibration-settings/#respond Thu, 14 Mar 2024 15:50:46 +0000 https://myxraydose.com/?post_type=docs&p=6284 Overview Calibration settings can be changed under the Settings > Measurement Settings tab: Here you can adjust various factors that influence calibrations such as: Sample count (for greater accuracy) CIE D65 colour calibration Minimum and maximum luminance targets Colour dithering Sample count The number of calibration samples impacts the time taken to complete calibration as well […]

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Overview

Calibration settings can be changed under the Settings > Measurement Settings tab:

Here you can adjust various factors that influence calibrations such as:

  1. Sample count (for greater accuracy)
  2. CIE D65 colour calibration
  3. Minimum and maximum luminance targets
  4. Colour dithering

Sample count

The number of calibration samples impacts the time taken to complete calibration as well as the accuracy of the final calibration applied. Using a larger number of samples for Calibration Points may help to reduce GSDF. For most purposes, using 52 or 64 samples is optimal.

Note: For maximum GSDF accuracy, 1786 calibration points can be used. However, to select this option, colour calibration must be disabled, dithering mode set to partial or full, and LUT bit depth to be set to 8-bits

The sample count for the check phase of the calibration should be set to 18 to for valid GSDF values.


CIE D65 Colour Calibration

To enable CIE D65 color calibration for your monitor,  toggle the CIE D65 colour calibration option. This will be applied on the next calibration that is run. 

Enabling this option may reduce the maximum luminance for your display to below what it is capable of, as some tradeoffs have to be made to correct for colour. If your display no longer meets the luminance requirement for your selected standard after applying colour calibration, it is recommended you disable this option. This setting is also not compatible when a dithering mode is selected.


Luminance Targets

All radiology display standards have requirements for minimum and maximum luminance. By default, ViewIQ will target a minimum luminance of 1 cd/m2 and use the maximum luminance your display is capable of. This should allow for most standards to be met without having to make any changes (assuming that your display hardware is capable of meeting the standard). 

However, you might want to adjust these targets to preserve your display (by reducing maximum luminance to that of the standard being used) or when using a custom standard. To set the minimum and maximum luminance enter your values into their respective fields and run a calibration:


Colour Dithering

GSDF can be further improved when colour channels are individually incremented, as this allows the calibration to make use of a greater range of luminance values. To enable dithering, expand Advanced Options

Then from the colour dithering drop down, select Partial or Full dithering.

Full dithering may cause unintended results with colour production. If this is experienced, use Partial dithering instead.

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]]> https://myxraydose.com/docs/adjusting-calibration-settings/feed/ 0 6284 Illuminance, Ambient Luminance & Uniformity https://myxraydose.com/docs/illuminance-ambient-luminance-uniformity/ https://myxraydose.com/docs/illuminance-ambient-luminance-uniformity/#respond Thu, 14 Mar 2024 15:49:50 +0000 https://myxraydose.com/?post_type=docs&p=6301 Many standards require multiple types of measurements for a complete report, such as illuminance or uniformity. Room lighting can also affect the calibration, and can be accounted for by setting ambient luminance. These options are available under each display: Illuminance Illuminance is the amount of light that falls on a surface per unit area. Many […]

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Many standards require multiple types of measurements for a complete report, such as illuminance or uniformity. Room lighting can also affect the calibration, and can be accounted for by setting ambient luminance. These options are available under each display:


Illuminance

Illuminance is the amount of light that falls on a surface per unit area. Many standards require this to be below a certain threshold. To measure illuminance, place your photometer on the screen with the lens pointing outward and the diffuser covering the sensor:

Click Measure Illuminance to take a reading, which will then be displayed in the Lux tile:


Ambient Luminance

To set ambient luminance for a display, click on the edit icon in the ambient luminance tile:

A popup will appear, where the value can be set:

For an accurate measurement using a photometer, it is recommended to:

  1. Turn off the display for which ambient luminance is being measured (two or more displays are needed)
  2. Ensure the diffuser is not covering the sensor
  3. Hold the photometer in approximately the same location as where an observer would be looking from
  4. Face the sensor toward the display and click Measure to take a reading

The ambient luminance field will be updated with your measurement


Uniformity

To measure uniformity, click Measure Uniformity. The following window will open:

With your photometer ready, place the sensor within the circle of the light gray box and click OK to start. When each reading is taken, move the sensor to the next circle and repeat (readings will be taken automatically). After the last reading is taken the window will close, and the value can be found under the Uniformity tile

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]]> https://myxraydose.com/docs/illuminance-ambient-luminance-uniformity/feed/ 0 6301 DoseNode Installation Guide https://myxraydose.com/docs/dosenode-installation-guide/ https://myxraydose.com/docs/dosenode-installation-guide/#respond Thu, 17 Nov 2022 04:43:39 +0000 https://myxraydose.com/?post_type=docs&p=5908 Introduction To enable the collection of radiographic data and image quality information a set of DICOM compliant applications have been developed. These applications receive images, structured dose reports and MPPS messages, processing and then sending results to a database for reporting and event notification. These applications are designed to run as a background service on […]

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Introduction

To enable the collection of radiographic data and image quality information a set of DICOM compliant applications have been developed. These applications receive images, structured dose reports and MPPS messages, processing and then sending results to a database for reporting and event notification. These applications are designed to run as a background service on a Windows computer with network access to the DICOM store provider and access to the www.MyXrayDose.com server either directly or via a proxy server. Each installation instance is referred to as a DoseNode.

The application conforms to the requirements of the DICOM standard as a DICOM store-SCP and MPPS SCP and can accept multiple consecutive associations from different Store SCU and MPPS SCU entities.

Figure 1: Overview of DoseNode software component connections.

The MyXrayDose.com destination is specific to the geographical region.

The DoseNode performs a range of function including the following:

  • DICOM Store SCP
  • DICOM MPPS SCU
  • DICOM ECHO
  • X-Ray Image Quality Analysis
  • Screen Scrape from images of Dose report form some legacy X-ray systems
  • DICOM Data Extraction
  • Encryption and data transfer to website

Encryption during transfer

The application is designed to receive medical images, structured dose reports and Modality Performed Procedure Step (MPPS) messages, storing them locally on the client’s computer in the original format until the file is processed. It is the network owner’s responsibility to ensure that access to the local data drive is sufficiently protected to meet their security policy requirements. Once the data is extracted 128 bit AES message level encryption is applied to protect the data from the sending application through to the receiving application on the MyXrayDose server.

Once processed, all local data is deleted from the client’s data directory.

Installation Configurations

Several configurations of the DoseNode connections to the X-ray Imaging modalities and web service are possible.

A single instance can be installed within an organisation’s network infrastructure, with multiple x-ray systems connecting to the single DoseNode. Alternatively multiple instances can run for the same organisation, each accepting connections from multiple x-ray systems and/or the PACS.

Figure 2: Multiple DoseNodes with connections to multiple  x-ray systems.

DoseNode Topology

The number of DoseNode’s and whether the connection is directly from the Modality or via the PACS is influenced by the capabilities of the imaging modalities and the PACS system. The following table should be used as a guide to the optimal configuration.

Modality

DICOM Images

RDSR

MPPS

Connection Type

Connections Per DoseNode

CT

MG-Tomosynthesis

One Series per irradiation event minimum. Other series of interest may also be sent

Required (See note 1)

Not required

M

5

XA, RF

 

Required

Preferred

Only if RDSR not available

M

10

CR, DX, IO, MG, NM, PT, PX

Required

Preferred but not required

Not required

E

50

 Note 1: If RDSR is not available then OCR scrape of dose report is performed .

 

M = DICOM connect direct to Modality (or  to PACS if RDSR available from PACS)

E = Either from PACS (preferred) or from Modality

  

Modality Abbreviations

  • CR       Computed Radiography
  • CT        Computed tomography
  • DX        Digital Radiography
  • IO        Intra-oral Radiography
  • MG       Mammography
  • NM       Nuclear Medicine
  • PT        Positron emission tomography (PET)
  • PX        Panoramic X-Ray
  • RF        Radio fluoroscopy
  • RG       Radiographic imaging (conventional film/screen)
  • SR        SR Document
  • XA        X-Ray Angiography
  • RDSR Radiation Dose Structured Report
  • MPPS   Modality Performed Procedure Step

DoseNode Computer Requirements

The DoseNode software will run on either a Virtual Machine or a standalone computer.

 

Component

Preferred

Minimum

Operating System

 

Windows 10 Professional 64 Bit OS

Windows 7, Windows Server 2012, 32 Bit OS

Hardware

 

Quad Core i7 8GB RAM

A 2GHz processor with 4GB RAM

Disk Storage:

500 GB SSD, or sufficient disc storage for available for 14 days’ worth of image data.

100 GB

Networking

 

1 GB/s TCP/IP

100 MB/s TCP/IP

DoseNode Computer Configuration Checklist

DoseNode Computer Setup Checklist

ü

BIOS Auto Start after Power Failure (Even if powered via a UPS)

 

Hibernation: CPU Always On

 

Static IP address assigned to computer to allow DICOM communication as per standard connection requirements.

 

Firewall exception created on ports based on configuration settings e.g. Inbound and Outbound Ports 104, 105,11112 enabled for communication with the DICOM compliant imaging modalities within the internal network. Ping, Telnet and DICOM Ping to imaging network on ports performed and confirm communication.

 

Virus protection installed and system scanned: Default AVG. White list service applications as some virus checkers will delete DoseNode applications.

 

Operating system Updated

 

Firewall rule created from Service to website to enable SOAP communication on ports 80 and 443 from local network t

Australia  au.MyXrayDose.com

New Zealand  nz.MyXrayDose.com

Local system administrator to confirm final rule configuration.

 

Connection information entered into www.MyXrayDose.com website by System administrator. (Data form at end of this document)

 

DoseNode connection entered for external connection to website. Verify connection established for correct customer. Username and password will only work on the original installation (Exclusive to each installation) so cannot be reused on a different computer, or new installation on same computer.

 

Connection details Entered for Proxy Server if required

 

Installation DICOM Client under Windows Operating system

A windows MSI installer is provided to setup the runtime environment and install the necessary software and libraries.

Running the Installer

Right click and run the installer MyXrayDose-vXXXX.exe as administrator.

Run as Administrator is required as this installer requires Administrator privileges – for installation and configuration of Windows background services 

Click Next

Select Local System account if the services do not require a specific Windows User Account to access installation directory or internet or any proxy servers. If a specific Windows Account is needed the select Use a Specific account and enter details.

Click Next

Click Finish – Another prompt may ask for Administrator privileges, in order to open the MyXrayDose Configuration application

Running the Configuration Utility

The configuration utility will automatically be launched at the end of the installation process if the Run MyXrayDose check box is left checked during the installation process. It can also be run by locating the MyXrayDoseConfig.exe file in the installation directory and running directly – or via the Start Menu, if that option was left checked during installation.

The following information is required to establish communication between the client application and the web based database.

Field

Usage

Username

Provided with the installation pack

Password

Provided with the installation pack.

Note 1:The Username and Password are for the application to logon on to the website, and secure the encrypted data transfer connection. They will not provide user access to the web site, and similarly the passwords used to access the user interface and report on the website will not allow the application to access the web services.

Note 2: The Username and Password will not work on a different DoseNode computer after the first use as they are specific to each installation.

DICOM Data Directory

The location where the DICOM images, structured reports and message data will be saved. This should be on the local drive or secure networked drive. Images are stored in the format that they are received. Data stored to this directory will be deleted once processed. Use of a drive other than the system (C:) is recommended so other applications continue to run if the data directory ever fills up to available disc space.

MPPS Receiver’s AE Title

This is the Application Entity title (AE Title) for this MPPS SCP to allow MMPS-SCU to identify the destination to send MPPS messages if required. Only used for legacy x-ray angiography and fluoroscopy systems that can’t generate Radiation Dose Structured Reports. Suggested name MyXrayDoseMPPS. It is limited to 16 characters length.

DICOM Store Port

The port should be the standard DICOM Store port used for image storage (Default port 104)

DICOM Receiver’s

This is the Application Entity title (AE Title) for this Store SCP to allow Store-SCU entities to identify the destination to send images and Radiation Dose Structured Reports to. Suggested name MyXrayDoseNode1. It is limited to 16 characters length.

MPPS Port

The port should be a different port number to that used for the DICOM Store Port (Default port 11112)

Proxy Address

Proxy Address if a local proxy server is used for internet access outside of the organisations network.

Proxy Port

The Port used on the Proxy Server to access the

Proxy Username & Password

Proxy Username and Password provided by administrator of Proxy Server to allow access through the proxy Server.

 

Username & Password

Important! The User Name and Password provided for the application is only valid for a single installation. If the installer is being re-run a new Username and Password will be required even if the installation is on the same computer.

Connecting to Website

Use the Main tab on the configuration screen to create a connection to the web site.

Select Server (xx.MyXrayDose.com), enter the Username and Password provided and click Connect. The correct Institution name should load from the website. This confirms the correct identify for this installation and that communication with the website was successful.  

Troubleshooting connection Ensure proxy settings are correct on the proxy tab (the program will not use the Windows ‘Internet Options’ proxy)

Click Download Tag Filters and Download Station Filters to retrieve current configuration files for this installation.

Click Save configuration.

Establishing DICOM AE Title and Port Number

Use the DICOM tab and entre the DICOM AETitle and MMPS AETitle’s for this DICOM Store SCP node. This will be the AETitle that this DICOM instance will be known as to the equipment connecting to this node. A unique AETitle is required for each instance of this application in the case where multiple instances are configured. Leave the default DICOM Data Directory or choose the preferred location. This is where image data is temporarily stored.

Services Tab

This tab uses the Windows ‘SC’ command to query the state of the MyXrayDose services. The state is intermittently polled, and each service can be individually started/stopped.

Note that following initial installation, the services do not start immediately, but are set to ‘automatic’ to start on system start-up. Should a service crash (due to missing/corrupt configuration or filters file) – the error is logged, and the service will restart following a 1 minute interval. This recovery behaviour can be configured, if desired, in the ‘Services’ Windows Administrator Tool.

Configuring for Use through a Proxy Server

Where access is through a proxy server is required then activate the Use a proxy to connect to MyXrayDose services check box and enter other details.

Setting up Modality/Store-SCU to Send Images, Structured Reports or MPPS Messages

The modality or PACS providing the images/DICOM Objects will need to have the DoseNode added as a Store-SCP destination for the images and Dose Structured Report. Vendor documentation required for this.

The DoseNode AETitles, IPAddress and Ports will be needed to configure the connection at the modality.

Any appropriate filtering of data from the PACS system will also need to be applied to restrict data to that from equipment of interest. Advice will be required from your PACS administrator on how to establish a Store-SCP destination and apply any filter conditions to limit sending of data only from appropriate sources.

Testing Network Connections

Ping

If the MyXrayDose extraction application has been setup correctly and is discoverable from the Store SCP a network ping and DICOM ping should be possible from both ends of the communication. The ping utility can be used test the IP address is reachable.

Windows Command Prompt:

ping target_name   e.g ping 192.168.0.8

If successful a message similar to the following will be received:

Reply from 192.168.0.8: bytes=32 time<1ms TTL=128

If unsuccessful a message similar to the following will be received:

Reply from 192.168.0.8: Destination host unreachable.

If the ping is unsuccessful the source of the DICOM images will be unable to send images to the MyXrayDose application. This is likely to be an issue for the local network administrator to resolve.

Telnet

The Telnet command is used to test a variety of services for connectivity. This is a good test to use for service or port blocks resulting from a firewall configuration.

To activate Telnet

Search Windows then enter Turn Windows Features On find Telnet Client and check box then exit

Example command prompt  TELNET 192.168.0.8 104

Netstat

You can use NETSTAT.EXE to identify what ports are being used by a particular process.  The syntax that we will be using for NETSTAT.EXE is as follows: netstat.exe –a –n –o.  The switches we are using provide the following:

-a: listing of all connections and listening ports

-n: display address and port numbers in numerical form

-o: display the owning PID associated with each connection

Command prompt

netstat -a -n –o

If listening on external port then should see:

For IPv4 0.0.0.0 104

For ipV6 [::]: 104

DICOM ECHO

The MyXrayDose has a DICOM Echo function. Using either the C-ECHO (DICOM ping) function likely to be included in the imaging modality or PACS from which the images are being sent. If this fails the error message will need to be noted and advised for resolution. Failure at this point is most likely due to:

  • firewall rule not properly setup
  • non-supported image format being sent.
  • DICOM StoreSCP (i.e. MXD_DICOMReceiverService) service is not running or is unreachable

An alternative C-ECHO tool such as – the DCMTK utility can be used. This is located in the resources folder after the installer run.

Wireshark

For advanced troubleshooting install Wireshark  www.wireshark.org and set the filter condition to “dicom” to see whether DICOM communication occurring and any imbedded error messages or ip.addr==xx.xx.xx.xxx && ip.addr==yy.yy.yy.yyyy to filter messages between two ip addresses if no DICOM communication.

e.g to filter dicom messages between two ip addresses dicom &&  ip.addr==192.168.2.101

Uninstalling

Locate the uninstaller in the application directory and run from. All application source code files will be deleted and the application uninstalled.

DoseNode Installation Record

Installation

Details

 

 

Institution

 

Location/Room

 

Department

 

Outlet ID

 

Machine Name

 

 

 

Network Card Configuration

IP Address (Static)

 

Gateway

 

Mask

 

DNS 1

 

 

 

DNS 2

 

Application User Credentials

Use Local System Account

 

Windows Account

 

Installation Directory

 

Windows Password

 

Application Settings

MyXrayDose Username

 

Store AE Title

 

MyXrayDose Password

 

Store Port

 

Server

 

MPPS AETitle

 

DICOM Data Directory

 

MPPS Port

 

Proxy Settings

Proxy Address

 

Proxy Username

 

Proxy port

 

Password

 

 Connection Test

ü

 

ü

 

 

Connection Success

 

Test File sent & received

 

Power Management No Hibernate

 

Station Filter & TagFilter Downloaded

 

Tags Extracted

 

Power management

Automatically restart after power failure

 

Proxy Server Test Success

 

XML Uploaded

 

 

 

Services Running

 

Log File no errors

 

 

 

 

 

File received at Website

 

 

 

Installation Notes:

Appendix

Troubleshooting

Symptom

Possible Cause

Solution

Services unable to run and Stop and restart every few seconds.

Missing or invalid configuration file.

Missing or invalid security certificate.

 

Reload configuration file from website using

Reinstall application using installer.

UpLoader won’t upload files from Output directory , but configuration utility able to download XMLStation filters and proxyserver configuration returns “Success” when tested.

The Service login credentials are incorrect or missing. Run installer again with valid login credentials

 

 

 

 

Message associated with invalid User Credentials.

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]]> https://myxraydose.com/docs/dosenode-installation-guide/feed/ 0 5908 Using your web account https://myxraydose.com/docs/using-your-web-account/ https://myxraydose.com/docs/using-your-web-account/#respond Wed, 02 Nov 2022 04:43:54 +0000 https://myxraydose.com/?post_type=docs&p=5587 Logging In To log into your ViewIQ account, visit https://myxraydose.com/my-account/ Enter your credentials or create a new account. Upon logging in, you will be greeted by the dashboard: Here you can view the status of your subscription. If you do not yet have a subscription, or wish to purchase another copy of ViewIQ, you can do […]

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Logging In

To log into your ViewIQ account, visit https://myxraydose.com/my-account/

Enter your credentials or create a new account. Upon logging in, you will be greeted by the dashboard:

Here you can view the status of your subscription. If you do not yet have a subscription, or wish to purchase another copy of ViewIQ, you can do this by visiting the Shop

Viewing Status Updates

ViewIQ regularly sends updates to the website on startup or login. These contain information on the success or failure of applying calibration look-up-tables, the state of monitor settings (whether or not a user has adjusted these), as well as notifying of any driver version changes. To view these updates, visit the Status Report section

To view additional information, click on the link for a computer:

Any errors encountered by that workstation will be included in the log.

Managing Licenses

You can view all of your licenses and their status under Manage Licenses

Here you can see which licenses are active, when they were activated and how the calibration and user check reminders are configured. To set calibration and check reminders, click Click to define

When a new license is added or has been freed, it will appear in the list with License available, click here to activate

To activate a free license, simply enter the license key in the ViewIQ software. Subscriptions will be automatically detected. 

Visit the License Management help section for information on freeing up an existing license for use on another workstation. 

Viewing Calibration Results

Calibration history across all workstations can be viewed under Calibration Results. This only includes uploaded results.


Reviewing User Checks

User visual checks history can be seen under User Check Data

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]]> https://myxraydose.com/docs/using-your-web-account/feed/ 0 5587 Licence Management https://myxraydose.com/docs/licence-management/ https://myxraydose.com/docs/licence-management/#respond Wed, 02 Nov 2022 04:43:06 +0000 https://myxraydose.com/?post_type=docs&p=5585 Activating your license 1. To active your license, open the active license window by clicking on the button in the top right of the main window: 2. You can activate your license either by entering your username and password or using a license key: 3. For a license key, copy and paste your key into […]

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Activating your license

1. To active your license, open the active license window by clicking on the button in the top right of the main window:

2. You can activate your license either by entering your username and password or using a license key:

3. For a license key, copy and paste your key into the activation key field and click Activate.  If using your username and password, enter them in their respective fields and click Get next available license

4. If successful, your copy will now be licensed: 


Checking license status

1. To check the status of your license, navigate to the Settings > License tab

2. Click Check license active. 

Deactivating your license

  1. To deactivate your license navigate to the Settings > License tab

2. Click Release License to deactivate

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]]> https://myxraydose.com/docs/licence-management/feed/ 0 5585 Appendix https://myxraydose.com/docs/appendix/ https://myxraydose.com/docs/appendix/#respond Wed, 02 Nov 2022 04:42:41 +0000 https://myxraydose.com/?post_type=docs&p=5583 References Display Quality Assurance The Report of AAPM Task Group 270 January 2019 DICOM PS3.14  – Grayscale Standard Display Function RANZCR-Standards of Practice for Clinical Radiology V11 ACR–AAPM–SIIM Technical Standard for Electronic Practice Of Medical Imaging RCR-Standards for interpretation and reporting of imaging investigations Luminance and illuminance Luminance and illuminance are both measures of light, […]

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References

  1. Display Quality Assurance The Report of AAPM Task Group 270 January 2019
  2. DICOM PS3.14  – Grayscale Standard Display Function
  3. RANZCR-Standards of Practice for Clinical Radiology V11
  4. ACR–AAPM–SIIM Technical Standard for Electronic Practice Of Medical Imaging
  5. RCR-Standards for interpretation and reporting of imaging investigations

Luminance and illuminance

Luminance and illuminance are both measures of light, but they describe different aspects of it. Luminance is a measure of the amount of light that is emitted or reflected from a surface, and is typically measured in units of candelas per square meter (cd/m2). Illuminance, on the other hand, is a measure of the amount of light that falls on a surface, and is typically measured in units of lux (lx). Luminance is a directional measure, while illuminance is an averaged measure. In summary, luminance describes the amount of light coming from a source, while illuminance describes the amount of light received by a surface.

CIE D65

The CIE D65 standard, also known as the CIE Standard Illuminant D65, is a standard illuminant used in colorimetry to represent average daylight. It is one of the standard illuminants used in the CIE 1931 color space, which is a color space used to describe the colors visible to the human eye.

The CIE D65 standard is defined by the CIE as a spectral power distribution with a correlated color temperature of 6500 Kelvin. It is designed to represent the average daylight spectrum at noon on a clear day, with a slight adjustment to the blue region of the spectrum to match the average daylight spectrum at sea level in Western Europe.

The CIE D65 standard is widely used in a variety of applications, including photography, graphic design, and television and film production. It is also used in color management systems to ensure that colors are reproduced accurately across different devices and mediums.

DICOM Part 14  GSDF

DICOM Part 14: Grayscale Standard Display Function: The Grayscale Standard Display Function (GSDF) is a mathematical function defined in the DICOM Part 14 standard that specifies how digital grayscale images should be displayed. The GSDF is used to ensure that grayscale images are displayed consistently across different devices, such as monitors and printers, and that the luminance values of the pixels in the image are accurately represented.

The GSDF is an important part of the DICOM standard, as it ensures the accurate and consistent display of grayscale images.

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]]> https://myxraydose.com/docs/appendix/feed/ 0 5583 Information Tabs & Graphs https://myxraydose.com/docs/information-tabs-graphs/ https://myxraydose.com/docs/information-tabs-graphs/#respond Wed, 02 Nov 2022 04:41:21 +0000 https://myxraydose.com/?post_type=docs&p=5581 Luminance Luminance is the luminous intensity per unit area projected in a given direction measured in cd/m2 The luminance graph consists of three sets of data: Measured luminance before applying calibration (purple) Calculated target luminance (green) Measured luminance after applying calibration (teal) The number of samples for both sets of measured points can be adjusted […]

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Luminance

Luminance is the luminous intensity per unit area projected in a given direction measured in cd/m2

The luminance graph consists of three sets of data:

  1. Measured luminance before applying calibration (purple)
  2. Calculated target luminance (green)
  3. Measured luminance after applying calibration (teal)
The number of samples for both sets of measured points can be adjusted in the settings under Measurement Settings


Contrast Response

JND (Just-Noticeable Difference)

Just-Noticeable Difference is the luminance difference of a given target under given viewing conditions that the average human observer can just perceive.

Colour Accuracy

The colour accuracy graph plots the deviation in chromaticity coordinates from the measured value relative to the ideal value. The closer the points fall to the center of the X the more colour accurate the display is. 

The graph plots two datasets:

  1. Measured chromaticity deviation before calibration is applied (purple)
  2. Measured chromaticity deviation after calibration is applied (teal)

In the below image the colour accuracy setting is disabled. This can be toggled in Settings > Measurement Settings

Colour calibration enabled:

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]]> https://myxraydose.com/docs/information-tabs-graphs/feed/ 0 5581 Performing a Calibration https://myxraydose.com/docs/performing-a-calibration/ https://myxraydose.com/docs/performing-a-calibration/#respond Wed, 02 Nov 2022 04:39:02 +0000 https://myxraydose.com/?post_type=docs&p=5579 Calibrating a Display To calibrate a display, first identify the monitor you wish to calibrate. When you click on a display in the list, an overlay will be displayed on the corresponding monitor. To identify all displays at once, press Identify Displays.  Ensure an OEM X-Rite photometer is connected. Then place the photometer sensor (glass […]

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Calibrating a Display

To calibrate a display, first identify the monitor you wish to calibrate. When you click on a display in the list, an overlay will be displayed on the corresponding monitor. To identify all displays at once, press Identify Displays. 

Ensure an OEM X-Rite photometer is connected. Then place the photometer sensor (glass side) down in the center of the selected display, hanging the counterweight over the backside of the monitor. Ensure the diffusor cover is not over the sensor.

Press Start Calibration to begin calibrating the display, this may take a few minutes depending on the selected number of samples. Ensure the photometer remains steady throughout the process for optimal results. 

Once the calibration is finished, the window will automatically close and the results will be displayed:


Using your Results

After one or more calibrations have been completed, you can use these results in various ways. To generate a PDF report of the current calibration status of your display setup, click Print Report.

If you have a ViewIQ website subscription, you can also upload the results of each calibration to the website. 

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]]> https://myxraydose.com/docs/performing-a-calibration/feed/ 0 5579 FAQs https://myxraydose.com/docs/troubleshooting/ https://myxraydose.com/docs/troubleshooting/#respond Wed, 02 Nov 2022 04:38:22 +0000 https://myxraydose.com/?post_type=docs&p=5577 Does ViewIQ run on Mac or Linux? ViewIQ is only supported on Windows currently.

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Does ViewIQ run on Mac or Linux?

ViewIQ is only supported on Windows currently.

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