DocumentCode :
2059812
Title :
Video intensity mapping for fair receiver comparison
Author :
Kirsteins, I.P. ; Sarma, A. ; Tufts, D.W.
Author_Institution :
Naval Undersea Warfare Center, Newport, RI
fYear :
2005
fDate :
17-23 Sept. 2005
Firstpage :
1455
Abstract :
In underwater acoustic signal processing, sonar receivers are often compared and judged qualitatively by visually examining intensity or false-color plots of the 2D test statistic outputs on a computer monitor. A major danger with this approach is that human observers are often biased by aesthetic qualities or artifacts introduced either unintentionally or intentionally by the video intensity map designer. Motivated by this problem, we develop an approach for "fairly" displaying receiver outputs that is based on using nonparametric tolerance intervals to optimally quantize the test statistic pixels into luminance codewords that are then mapped into video intensities chosen to satisfy Weber\´s law. Application to actual underwater acoustic data suggests the new approach works well
Keywords :
geophysical signal processing; oceanographic techniques; sonar signal processing; underwater sound; video signal processing; Weber´s law; false-color plots; luminance codewords; nonparametric tolerance intervals; sonar receivers; test statistic pixels; underwater acoustic data; underwater acoustic signal processing; video intensity mapping; Computer displays; Humans; MATLAB; Narrowband; Sonar; Spectrogram; Statistical analysis; Testing; Underwater acoustics; Whales;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
OCEANS, 2005. Proceedings of MTS/IEEE
Conference_Location :
Washington, DC
Print_ISBN :
0-933957-34-3
Type :
conf
DOI :
10.1109/OCEANS.2005.1639960
Filename :
1639960
Link To Document :
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