Colour vision-identification characteristic automatic quantitative testing system

Abstract

The present invention discloses an autoamtic quantitative test system of color visual discriminatory acuity. Said system comprises main computer PC machine, color CRT display, lower jaw support, special-purpose respose keyboard, photoelectric scaling system and printer, and the main computer PC machine is respectively connected with color CRT display on central position of whose screen a color irritation test block formed from four 1 degree X 1 degree small squares can be formed, special-purpose response keyboard, printer and photoelectric scaling system by means of RS-232 serial interface, and the lower jaw support is placed in the front of colour CRT display. Said invention utilizes the computer-controlled colour CRT analogous color simulation display technique and other test measures to test color discrimination of visual sense of human eye.

Description

Technical field [0001] The invention relates to a system for testing color vision. Background technique [0002] Human color perception can distinguish tens of millions of colors. It is this ability to discern colors that promotes the research and application of human color perception mechanisms. In industrial practice, color discrimination has become an important link in production quality control. The application of color discrimination in the traditional non-ferrous material industry and modern information industry related to a large number of image processing and its reproduction and other related technical fields, the key is It is a quantitative test of color vision discrimination characteristics. [0003] Accurately and reliably measuring the color discrimination characteristics of human vision has always been a major issue in the field of color science and vision research. The traditional method is to use dyed samples with known color parameter dis...

AI Technical Summary

Problems solved by technology

It can be seen that the application of the adjustment method requires the operator to have in-depth knowledge of color science, and it is necessary to judge the relationship between the adjustment of color parameters and the direction of change in color appearance. Personal factors have great dependence, and the test result is only the color difference when the two color blocks (test and reference color samples) are judged to be consistent in a single time, which is contingency and uncertainty; the gray level evaluation method needs to be tested for the color block. The quantitative judgment of color difference is not only highly dependent on personal factors such as the operator's education level and knowledge level, but also affected by many psychological and physiological conditions such as the operator's emotions, attitudes, and health conditions at that time. Large uncertainty, and the color discrimination threshold is obtained through indirect calculation of color difference under set conditions, which is not objective

At present, domestic research in this area is less, still in its infancy and development stage, relatively backward

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