Image analysis – Applications – Range or distance measuring
Patent
1997-03-28
1999-10-26
Rogers, Scott
Image analysis
Applications
Range or distance measuring
382154, 382162, 382255, 382274, 382279, 382302, G06T 510, G06T 700
Patent
active
059741597
ABSTRACT:
A method and apparatus for assessing the visibility of differences between two input image sequences. The apparatus comprises a visual discrimination measure having a retinal sampling section, a plurality of temporal filters and a spatial discrimination section. The retinal sampling section applies a plurality of transformations to the input image sequences for simulating the image-processing properties of human vision. The temporal filters separate the sequences of retinal images into two temporal channels producing a lowpass temporal response and a bandpass temporal response. The spatial discrimination section applies spatial processing to the temporal responses to produce an image metric which is used to assess the visibility of differences between the two input image sequences.
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patent: 5204944 (1993-04-01), Wolberg et al.
patent: 5394483 (1995-02-01), Daly
patent: 5517581 (1996-05-01), Johnston et al.
patent: 5694491 (1997-12-01), Brill et al.
Copy of International Search Report dated Aug. 27, 1997, from corresponding international application.
Brill Michael Henry
De Vries Aalbert
Finard Olga
Lubin Jeffrey
Burke William J.
Rogers Scott
Sarnoff Corporation
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