Patent US20110032984A1 successfully refreshed from Google Patents.
US20110032984A1
Active / In Force
US
⏱️ 3.9 years remaining
Methods circuits and systems for transmission of video
Assignee: Amimon Ltd
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Filing: 2010-09-15
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Granted: —
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Expires: 2030-09-15
Abstract
Abstract Disclosed are methods, circuits and systems for transmission of a video block. A video stream may be composed of sequential video frames, and each video frame may be composed of one or more video blocks including a set of pixels. Prior to transmission of the data associated with a video block, a signature of the video block may be generated, for example using a spatial to frequency transform such as a two dimensional discrete cosine transform. Signatures of corresponding video blocks across consecutive video frames may be compared in order to determine whether a given video block of a current video frame is static or dynamic relative to prior video corresponding video blocks. Transmission parameters of the given block may depend on whether the block is designated as static or dynamic.
Inventors
- 👤 Guy Dorman
- 👤 Zvi Reznic
- 👤 Shmuel Lifsches
- 👤 Daniel Stopler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:22
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/60; H04N19/625; H04N19/10; H04N19/102; H04N19/115; H04N19/132; H04N19/134; H04N19/136; H04N19/137; H04N19/14; H04N19/169; H04N19/17; H04N19/172; H04N19/176; H04N19/18; H04N19/50; H04N19/503; H04N19/507
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
50 words
1 . A method for processing video data comprising: determining a deviation between a given video block in a current video frame relative to a corresponding video block in a previous video frame by comparing a signature of the given block with a signature of the corresponding previous video block.
Claim 2
Dependent Claim
50 words
1 . A method for processing video data comprising: determining a deviation between a given video block in a current video frame relative to a corresponding video block in a previous video frame by comparing a signature of the given block with a signature of the corresponding previous video block.
Claim 3
Dependent Claim
47 words
2 . The method according to claim 1 , further comprising generating a signature for the given video block by performing a discrete cosine transform (DCT) on one or more of component blocks of the given video block to produce one or more DCT blocks of coefficients.
Claim 4
Dependent Claim
36 words
3 . The method according to claim 2 , wherein a video block signature is generated by calculating a hash function of at least one of the coefficients of at least one of the DCT blocks.
Claim 5
Dependent Claim
37 words
4 . The method according to claim 2 , wherein a video block signature is generated by calculating a hash function of at least a DC coefficient of at least one of the component DCT coefficient block.
Claim 6
Dependent Claim
33 words
5 . The method according to claim 2 , wherein a video block signature is generated by calculating a hash function of at least a DC coefficient of a Y DCT coefficient block.
Claim 7
Dependent Claim
41 words
6 . The method according to claim 2 , wherein a video block signature is generated by calculating a hash function of a DC coefficient and at least one AC coefficient, of at least one of the component DCT coefficient blocks.
Claim 8
Dependent Claim
38 words
7 . The method according to claim 2 , wherein a video block signature may be generated by calculating a hash function of a DC coefficient and at least one AC coefficient of a Y DCT coefficient block.
Claim 9
Dependent Claim
27 words
8 . The method according to claim 1 , further comprising designating the current video block a static when the determined deviation is below a threshold value.
Claim 10
Dependent Claim
63 words
9 . A video transmitting device comprising: a video block signature generator adapted to generate a signature for a given block in a current video frame; and a comparator adapted to determine a deviation between the given video block of the current video frame relative to a corresponding video block in a previous video frame by comparing signatures of the two video blocks.
Claim 11
Dependent Claim
63 words
9 . A video transmitting device comprising: a video block signature generator adapted to generate a signature for a given block in a current video frame; and a comparator adapted to determine a deviation between the given video block of the current video frame relative to a corresponding video block in a previous video frame by comparing signatures of the two video blocks.
Claim 12
Dependent Claim
51 words
10 . The device according to claim 9 , wherein said generator is adapted to generate a signature for the given video block by performing a discrete cosine transform (DCT) on one or more of component blocks of the given video block to produce one or more DCT blocks of coefficients.
Claim 13
Dependent Claim
36 words
11 . The device according to claim 10 , wherein a video block signature is generated by calculating a hash function of at least one of the coefficients of at least one of the DCT blocks.
Claim 14
Dependent Claim
37 words
12 . The device according to claim 10 , wherein a video block signature is generated by calculating a hash function of at least a DC coefficient of at least one of the component DCT coefficient block.
Claim 15
Dependent Claim
33 words
13 . The device according to claim 10 , wherein a video block signature is generated by calculating a hash function of at least a DC coefficient of a Y DCT coefficient block.
Claim 16
Dependent Claim
41 words
14 . The device according to claim 10 , wherein a video block signature is generated by calculating a hash function of a DC coefficient and at least one AC coefficient, of at least one of the component DCT coefficient blocks.
Claim 17
Dependent Claim
38 words
15 . The device according to claim 10 , wherein a video block signature may be generated by calculating a hash function of a DC coefficient and at least one AC coefficient of a Y DCT coefficient block.
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