Barco MediCal LE Скачать руководство пользователя страница 20 | Manualshive

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Working uncalibrated

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Working uncalibrated

You can ignore the corrections you have performed on the
display system with MediCal LE.

Therefore, right-click on the MediCal LE icon in the Windows Task
Bar (the MediCal LE application must be closed).

Select Disable Calibration. The selected menu item changes to
"Enable calibration".

To activate the corrections again, select Enable calibration.

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Содержание MediCal LE

Страница 1: ...Installation User Manual MediCal LE ...

Страница 2: ...www barco com B410015 02 November 2004 ...

Страница 3: ...isplay systems With MediCal LE you can Perform Q A checks observing many kinds of test patterns See Performing quality checks with test patterns Calibrate the displays with the delivered optical sensor See Calibrating displays Select from a list of display functions See Options Choose to work calibrated or uncalibrated See Working uncalibrated ...

Страница 4: ...to the Uninstalling MediCal LE further in this chapter 3 Set the resolution desktop area of all the displays in your system to at least 1024x768 landscape displays or 768x1024 portrait displays Set the resolution by selecting Start Settings Control Panel Display Select the Settings tab and adjust the screen size Installing MediCal LE To install MediCal LE follow these steps 1 Exit all open program...

Страница 5: ... icons Click on Next to continue 10 The installer program now starts to install the files at the appropriate place Note MediCal LE is installed in the System Tray 11 Click on Finish to complete the setup 12 Restart the PC before you can use MediCal LE Uninstalling MediCal LE To remove MediCal LE from your system proceed as follows 1 You must have Administrator privileges to uninstall the software ...

Страница 6: ...An adapter covered with felt and an adapter with suction cups Attention Do not put the sensor head adapter with the suction cups on the screen of an LCD display without protective front glass The suction cups might damage the LCD screen surface when you remove the sensor from the screen For LCD displays you should use the sensor head with the felt For CRT displays you should use the head with the ...

Страница 7: ...d adapter in clockwise sense To connect the sensor 1 Put the MediCal LE CD ROM in the CD ROM drive A screen will appear but do NOT click on any button 2 Plug the sensor in one of the USB connectors of your PC 3 Windows pops up a message box Found new hardware 4 Select Search for a suitable driver for my device 5 Select to search on the CD ROM drives to find the proper drivers 6 Click Next to insta...

Страница 8: ...e Thanks to this counterweight you can let the sensor cable hang over the top of the display during calibration or measurement Figure 2 Counterweight Attention When using the sensor with the felt covered head adapter take care that no light can enter between the edge of the adapter and the screen surface If necessary slightly push the sensor to the screen ...

Страница 9: ... yet This is the initial situation after installing MediCal LE The icon appears without the cross after calibration You can start MediCal LE by Double clicking on the icon in the System Tray Right clicking on the icon in the System Tray and selecting Open MediCal LE Starting MediCal LE from the Start Programs MediCal LE menu in Windows The MediCal LE main window appears Figure 3 Main window ...

Страница 10: ...lect which displays in the system need or need not to be controlled Test patterns will appear only on selected displays At least one display must be selected To display a pre defined test pattern 1 Open MediCal LE 2 Click on the Test Patterns button 3 Use the Next and Back buttons to scroll through the possible test patterns 4 Double click on the icon of one of the following patterns SMPTE Briggs ...

Страница 11: ...rn is displayed the pattern options appear Inverted The imaging board Look Up Tables are inverted white becomes black etc Calibrated Disable this option to view the test pattern without the effect of the calibration In this way you can compare the calibrated and uncalibrated situations Enable the option again for normal calibrated operation Quit Close the test pattern on this display On a system w...

Страница 12: ...nction To measure the patches put the optical sensor on a patch and check the measured luminance displayed in the Measure window Briggs This pattern can be used to check if the display function is perceptually linear calibrated according to the DICOM display curve The pattern consists of rectangles including small squares that are 5 darker The small squares in each of the rectangles should be visi...

Страница 13: ...isplay curve This is the case if the text in all of the bands is legible Browse Browse and select your own test pattern MediCal LE supports bmp tif jpg and gif files Character This pattern can be used to check the image focus Check that the characters are sharp Contrast noise This pattern can be used to check the video signal Check that there is no ghosting or smearing near the white squares Geome...

Страница 14: ...t patches on the screen and check the Measure window to see if the measured value is approximately the same all over the screen Note To see what the correction in MediCal LE does to your image it may be a good idea to compare the SMPTE or Briggs pattern with the correction enabled and disabled You can do this by clicking the right mouse button on the pattern and disabling the Calibrated option ...

Страница 15: ...the sensor drivers on the MediCal LE CD ROM For more information see Optical sensor connection 3 When done open MediCal LE 4 If necessary click on the Options button to exclude displays from calibration select the display function to which to calibrate the displays When done click on Back to return to the main window For more information see Options 5 Click on the Calibrate button 6 If you have a ...

Страница 16: ...rate the sensor first Therefore carefully cover the eye of the sensor completely so that absolutely no light can enter the sensor eye E g you can hold the sensor with its eye down on a table surface When done click on Next When you use the sensor that came with a previous version of MediCal LE oval this step is skipped 9 In the next step a test pattern with 4 patches on a black background and 4 pa...

Страница 17: ...he Next button In this way you have determined the black luminance target value 12 Now set the display contrast to maximum Then decrease the contrast until you can just distinguish all 4 patches on the white background see Notes below When done click on the Next button In this way you have determined the white luminance target value 13 If the selected display function is DICOM the ambient light co...

Страница 18: ... on the next display in case of a multi head system Notes If you use a digital DVI video signal connection the adjustments for brightness contrast geometry and phase may not be present in your display Some LCD displays provide automatic adjustments for geometry and phase e g auto geometry auto phase etc You can use these automatic adjustments for geometry and phase adjustment during calibration se...

Страница 19: ...lick on the Next button 5 On a multihead system a graphical representation of the system appears The rectangles in the Select displays to be controlled window represent the display controller heads in the system and the displays connected to them By default all the displays are selected showing a check mark in the corresponding rectangle To deselect displays meaning they will not be calibrated nor...

Страница 20: ...med on the display system with MediCal LE Therefore right click on the MediCal LE icon in the Windows Task Bar the MediCal LE application must be closed Select Disable Calibration The selected menu item changes to Enable calibration To activate the corrections again select Enable calibration ...

Страница 21: ...on all displays of the system You may have added displays to your system while the MediCal LE window was still open Close the application window and restart MediCal LE You may have deselected displays in the Options section Patterns or calibration has disappeared Probably you have one or more imaging boards in your PC to which no display is connected while the board is still activated in the displ...

Страница 22: ...onverts the voltages at the inputs into light In the context of a medical viewing station a display device is the combination of imaging board and display The display function is a graph that shows how the light from the picture tube evolves from minimum to maximum luminance while the data levels at the input of the imaging board go from 0 to maximum Gamma The Gamma function is a kind of display f...

Страница 23: ...es exactly as if two separate boards were installed DICOM DICOM stands for Digital Imaging and Communications in Medicine It is a standard developed by the American College of Radiology ACR and the National Electrical Manufacturers Association NEMA The standard specifies how digital image data can be moved from system to system In addition Supplement 28 Part 14 specifies a function that relates pi...

Страница 24: ...About MediCal LE 22 About MediCal LE MediCal LE 1 03 version Copyright 2001 2004 BARCO nv All rights reserved More information http www barco com medical ...

Страница 25: ...he Software package contains more than one type of disk i e floppy and CD ROM then you may use only one set of the disks provided You may not use the disks on another computer or loan rent lease or transfer them to another user except as part of the permanent transfer as provided below of all Soft ware and Product Materials You may only use the Software in conjunction with Soft ware licenses by BA...

Страница 26: ...r a particular purpose or warranty of non infringement with respect to the Software and Product Materials The entire risk as to the quality and performance of the Software is with you This limited warranty gives you specific legal rights and you may also have other rights which vary from state to state Remedies BARCO NV s entire liability and your exclusive remedy shall be at BARCO NV s option eit...

Страница 27: ...reach If any provision of this Agreement shall be held to be unenforceable that provision will be enforced to the maximum extent possible and the remaining provisions of this Agreement will remain in full force and effect Should you have any questions con cerning this Agreement write to BARCO NV Th Sevenslaan 106 B 8500 Kortrijk Belgium Trademark information MediCal BarcoMed and MeDis are register...

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