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人眼对比度敏感视觉特性及模型研究_姚军财
DOI :10.13741/ki .11 -1879/o4.2009.03.031
353 Vol.35 No.3
2 0 0 9 5 OPTICAL TECHNIQUE May 2009
:1002-1582(2009)03-0334-04
人眼对比度敏感视觉特性及模型研究
1 2 2 1 2
姚军财, 石俊生, 杨卫平 , 申静, 黄小乔
(1. , 723003;2., 6500921)
:、、,
, , 。
, CRT ,
, CSF 。
, 。
:;;;;
:O432.2;TP334 :A
Research of contrast sensitivity characteristics
and model of human vision system
1 2 2 1 2
YAO Jun-cai , SHI Jun-sheng , YANG Wei-ping , SHEN Jing , HUANG Xiao-qiao
(1.S anxi University of Tec nology, Hanz ong 723003, C ina)
(2.Yunnan Normal University, Kunming 650092, C ina)
Abstract:T e c aracteristics of uman vision system (HVS)are t e basis for image tec nology of displaying, processing
and understanding.Studying t e visual c aracteristics t roug experimental test and t eoretical analysis to cause t e visual c ar-
acteristics simulation promotes t e development and application of p otoelectricity imagery tec nology.In t is measurement,
goal gratings are displayed on CRT monitor.Contrast sensitivity to luminance gratings wit t ree kinds of average brig tness
under t e dark environment is measured.According to t e experience of former fitting CSFs and distilling mat ematical model
t eoretically, CSFs of t ree kinds of average brig tness are fitted and a new CSF mat ematical model are put forward wit t e
exponential form of t e linear modulation function.Comparing t e results wit ones fitted by Nadenau, it s ow s t at t is model
of uman vision sensitivity c aracteristics is better.
Key words:uman vision system;con
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