Formula for the contrast sensitivity of the human eye

2003 ◽  
Author(s):  
Peter G. J. Barten
Keyword(s):  
Contrast Sensitivity ◽  
Human Eye

Study on New Measurement Method for Visual Contrast Sensitivity

2013 ◽  
Vol 433-435 ◽  
pp. 877-881
Author(s):  
Ji Yan Zhang ◽  
Bao Yu Hong ◽  
Wen Li Liu ◽  
Tao Geng Zhou
Keyword(s):  
Contrast Sensitivity ◽  
Measurement Method ◽  
Research Result ◽  
Optical Path ◽  
Integrating Sphere ◽  
Real Time Control ◽  
Measuring Device ◽  
Human Eye ◽  
Time Control ◽  
Visual Contrast

Contrast sensitivity measurement is widely used in clinical ophthalmology to evaluate visual function of the human eye, and of great significance for early diagnosis and identification of ophthalmic diseases. On the basis of contrast sensitivity definition, current measurement method was analyzed. By analyzing the existing principles and shortcomings of the human eye contrast sensitivity methods, a new method for generating observation targets of contrast sensitivity was proposed. By using double optical path design idea with integrating sphere and self-developed brightness adjustment systems, two beams of uniform light with specific luminance could be produced. With subsequent reuse of the optical path, accurate measurement of eye contrast sensitivity could be achieved, and calibration of contrast sensitivity tester widely used in clinical practice could be solved by developing assistant transfer tools. Moreover, output parameters of this method could be precisely adjusted according to the need as a result it ccould achieve real-time control and calibration. The research result has set the foundation for future establishment of visual threshold measuring device which is especially suitable for scientific and experimental research in clinical ophthalmology and metrology.

Machine vision based on the concept of contrast sensitivity of the human eye

2014 ◽  
Author(s):  
Vitali Bezzubik ◽  
Nikolai Belashenkov ◽  
Gleb Vdovin
Keyword(s):  
Machine Vision ◽  
Contrast Sensitivity ◽  
Human Eye

scholarly journals Optical Modulation Transfer and Contrast Sensitivity with Decentered Small Pupils in the Human Eye

1996 ◽  
Vol 36 (22) ◽  
pp. 3575-3586 ◽  
Author(s):  
PABLO ARTAL ◽  
SUSANA MARCOS ◽  
IGNACIO IGLESIAS ◽  
DANIEL G GREEN
Keyword(s):  
Contrast Sensitivity ◽  
Optical Modulation ◽  
Modulation Transfer ◽  
Human Eye

Human Eye Neural Contrast Sensitivity Function Measurement with Wave-Front Technology

2012 ◽  
Vol 32 (4) ◽  
pp. 0433001
Author(s):  
赵豪欣 Zhao Haoxin ◽  
戴云 Dai Yun ◽  
周逸峰 Zhou Yifeng ◽  
张雨东 Zhang Yudong
Keyword(s):  
Wave Front ◽  
Contrast Sensitivity ◽  
Sensitivity Function ◽  
Contrast Sensitivity Function ◽  
Function Measurement ◽  
Human Eye
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