Patent EP0677958A2 successfully refreshed from Google Patents.
EP0677958A2
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Motion adaptive scan conversion using directional edge interpolation
Assignee: Texas Instruments Inc
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Filing: 1995-04-12
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Granted: —
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Expires: 2015-04-12
Abstract
Abstract A method for processing video data to produce a progressively scanned signal from an input of conventional interlaced video. The data is received at a processor (1), used to determine a motion signal (26) over time between field of the data. The motion signal is filtered to remove errors and then further filtered to spread out the determined motion signal. Edge information (30) is located and combined with the motion signal to produce an integrated progressive-scan signal (36) for display on a video display device with sharper edges and less noise in motion between fields. <IMAGE>
Inventors
- 👤 Todd A. Clatanoff
- 👤 Vishal Markandey
- 👤 Robert J. Gove
- 👤 Kazuhiro Ohara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 18:07
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/01; H04N7/0117; H04N7/012
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
72 words
A method of processing video data, comprising: a. receiving said data into a processor; b. determining a motion signal from said data c. finding edge information in said data; d. filtering said motion signal; e. passing said edge information and said filtered motion signal to a scan-line video processor; and f. using said filtered motion signal and said edge information to produce a progressive-scan signal for use on a video display device.
Claim 2
Independent Claim
70 words
A method producing improved motion signals, comprising: a. determining a motion signal from the magnitude of motion between field of data in a video signal at a processor; b. using a median filter to eliminate errors from said motion signal, producing a filtered motion signal; c. temporally and spatially filtering said filtered motion signal, producing a thrice-filtered motion signal; and d. making available said thrice-filtered motion signal for further processing.
Claim 3
Independent Claim
95 words
A method for improved edge detection comprising: a. finding the minimum difference value between a set of first discrete edge directions at a processor; b. determining if the said difference value is greater than a predetermined threshold value; c. selecting a final edge direction based upon said determination, wherein said final edge direction is selected to be said difference value if said difference value is greater than said threshold value, otherwise, wherein said final edge direction is set to be vertical; and d. producing a signal from said processor that transmits said final edge direction.
Claim 4
Dependent Claim
11 words
Apparatus for performing a method as claimed in any preceding claim.
References Cited (Backward Citations)
No citation records indexed.
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