Method of predicting the probability of human observers recognizing targets in simulated thermal images

被引:13
作者
Fairhurst, AM [1 ]
Lettington, AH [1 ]
机构
[1] Univ Reading, JJ Thomson Phys Lab, Reading RG6 6AF, Berks, England
关键词
infrared; perception; performance measure; recognition; remote sensing; thermal imaging;
D O I
10.1117/1.601906
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A series of psychophysical trials is conducted to study the human perception of images of various shapes that are degraded by various combinations of Gaussian blurring, sampling, and fixed pattern noise. These images were created using computer programs designed to simulate the types of image degradation associated with thermal imagers that employ focal plane arrays (FPAs) of detectors. A total of 46 observers participated in these trials, during which over 130,000 observations were recorded. The responses collected during the trials are used to develop an empirical model of human vision applicable to 2-D images having a gray scale, but not including other colors. This model can be used to predict the probability of a human observer correctly distinguishing between images of two different objects. (C) 1998 Society of Photo-Optical instrumentation Engineers. [S0091-3286(98)00303-1].
引用
收藏
页码:744 / 751
页数:8
相关论文
共 17 条
[1]  
BIBERMAN LM, 1973, PERCEPTION DISPLAYED
[2]   CONTRAST THRESHOLDS OF THE HUMAN EYE [J].
BLACKWELL, HR .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1946, 36 (11) :624-643
[3]  
BRADLEY DJ, 1985, SPIE, V590, P53
[4]  
GREEN DM, 1974, SIGNAL DETECTION THE
[5]  
HOLST GC, 1993, TESTING EVALUATON IN
[6]  
KOMFELD GH, 1971, J OPT SOC AM, V61, P811
[7]   A DISCRETE MODULATION TRANSFER-FUNCTION FOR FOCAL PLANE ARRAYS [J].
LETTINGTON, AH ;
HONG, QH .
INFRARED PHYSICS, 1993, 34 (01) :109-114
[8]   AN OBJECTIVE MRTD FOR DISCRETE INFRARED IMAGING-SYSTEMS [J].
LETTINGTON, AH ;
HONG, QH .
MEASUREMENT SCIENCE AND TECHNOLOGY, 1993, 4 (10) :1106-1110
[9]   Bandwidth extension for IR detectors through spatial-frequency shifting [J].
Lettington, AH ;
Hong, QH ;
Tzimopoulou, S .
APPLIED OPTICS, 1996, 35 (26) :5258-5266
[10]  
LETTINGTON AH, 1994, P SOC PHOTO-OPT INS, V2298, P698, DOI 10.1117/12.186585