Free on-line display calibration tool by Qubyx

On their website, Qubyx claims that too much is being paid for so-called "medical displays". They claim that any premium LCD display can be calibrated to meet the highest medical standards with an image quality that matches or even surpasses the most overpriced displays on the market.


To demonstrate this claim, they introduced a free webased calibration tool called Display Test. Display Test is easily accessible anywhere, free of charge, fast to use, and does not require a measurement device, according to the company. It measures luminance reproduction accuracy of a display based on randomly generated test combinations of letters and numbers displayed with varying luminance that have to be repeated by the user. By doing this, the just noticable differences are recorded.
To receive the test results, an e-mail address has to be provided, also enabling to setup a date for the next scheduled test.

RSNA: iPad for review... But is it calibrated?

During this RSNA again a lot of vendors are showing iPad based viewing of medical imaging. In most cases advocated to be for review only and not for primary diagnosis. However, even for review the quality of the images displayed should be uncompromised. However, internal setting of the level of backlight of the iPad itself and external light sources heavily influence the quality of the image displayed.

BARCO has developed a calibration tool for the iPad called Medical QAWeb Mobile which allows a visual callibration and QA of tablets used for medical imaging viewing. A demo version can be downloaded from the Apple iTunes store. It basically involves tapping a couple of shapes on the screen to determine visibility of certain greylevels.