US6137904A
Expired / Lapsed
US
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Method and apparatus for assessing the visibility of differences between two signal sequences
Assignee: ASEV DISPLAY LABS
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Filing: 1998-04-03
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Granted: 2000-10-24
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Expires: 2018-04-03
Abstract
Abstract A method and apparatus for assessing the visibility of differences between two input signal sequences, e.g., image sequences is disclosed. The apparatus comprises a perceptual metric generator having an input signal processing section, a luminance processing section, a chrominance processing section and a perceptual metric generating section.
Inventors
- 👤 Jeffrey Lubin
- 👤 Michael H. Brill
- 👤 Albert P. Pica
- 👤 Roger L. Crane
- 👤 Walter B. Paul
- 👤 Gary A. Gendel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:16
CPC Classifications
G; G06; G06T; G06T5/00; G06T5/50; G06T15/00; G06T15/50; H; H04; H04N; H04N19/00; H04N19/60; H04N19/63
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
64 words
An apparatus for assessing visibility of differences between two input image sequences, said apparatus comprising: a luminance processing section, for filtering a luminance component of said input image sequences; a chrominance processing section, coupled to said luminance processing section, for filtering a chrominance component of said input image sequences; and a perceptual metric generating section, coupled said processing sections, for generating an image metric.
Claim 2
Independent Claim
64 words
An apparatus for assessing visibility of differences between two input image sequences, said apparatus comprising: a luminance processing section, for filtering a luminance component of said input image sequences; a chrominance processing section, coupled to said luminance processing section, for filtering a chrominance component of said input image sequences; and a perceptual metric generating section, coupled said processing sections, for generating an image metric.
Claim 3
Independent Claim
48 words
A method for assessing visibility of differences between two input image sequences, said method comprising the steps of: filtering a luminance component of said input image sequences; filtering a chrominance component of said input image sequences; and generating an image metric from said filtered luminance and chrominance components.
Claim 4
Independent Claim
48 words
A method for assessing visibility of differences between two input image sequences, said method comprising the steps of: filtering a luminance component of said input image sequences; filtering a chrominance component of said input image sequences; and generating an image metric from said filtered luminance and chrominance components.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-10-24 | 2004-04-24 | 2004-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-10-24 | 2008-04-24 | 2008-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-10-24 | 2012-04-24 | 2012-10-24 | $7700.00 | Window Closed / Lapsed |