US 11,989,801 B2
Computer implemented colour vision test and method of calibrating the computer implemented colour vision test
György Ábrahám, Budapest (HU); Róbert Tamás Fekete, Budapest (HU); László Kontur, Budapest (HU); and Péter Koncsár, Budapest (HU)
Assigned to MEDICONTUR KFT., Zsámbék (HU)
Appl. No. 17/786,732
Filed by MEDICONTUR KFT., Zsámbék (HU)
PCT Filed Dec. 17, 2020, PCT No. PCT/HU2020/050061
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/123850, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. P1900433 (HU), filed on Dec. 18, 2019; application No. 19217946 (EP), filed on Dec. 19, 2019; and application No. P2000245 (HU), filed on Jul. 27, 2020.
Prior Publication US 2023/0032436 A1, Feb. 2, 2023
Int. Cl. G06T 11/00 (2006.01); A61B 3/00 (2006.01); A61B 3/02 (2006.01); A61B 3/06 (2006.01)
CPC G06T 11/001 (2013.01) [A61B 3/0041 (2013.01); A61B 3/022 (2013.01); A61B 3/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer implemented method of testing colour vision by displaying a colour vision test on a display of a computer having at least one input interface, the method comprising:
selecting a target colour having a target hue and a target brightness and a test colour having a test hue such that the target colour and the test colour correspond in a chromaticity diagram of a colour space to two colours of different hue located on a common confusion line of a selected type of dichromacy;
providing a target image consisting of a set of target marks having a hue corresponding to the target hue and having an average brightness corresponding to the target brightness;
providing a plurality of test images comprising:
a first test image comprising a set of first test marks having a hue corresponding to the target hue and having an average brightness that is different from the target brightness,
a second test image comprising a set of second test marks having a hue corresponding to the test hue and having an average brightness corresponding to the target brightness,
any number of third test images each comprising a set of third test marks having a hue corresponding to the test hue and having an average brightness that is different from the target brightness,
displaying the target image in a target region of the display and displaying the plurality of test images at a plurality of test regions of the display that are spaced from the target region and from each other,
displaying instructions to select one of the plurality of test images based on highest similarity of hue compared to the target image,
reading in user input through the at least one input interface of the computer relating to the selection of a selected test image, and
evaluating the colour vision test such that if the selected test image corresponds to the first test image then determining a correct selection, and if the selected test image corresponds to one of the second test image or the third test images then determining an incorrect selection.