IP Library › Granted Patent US 12,192,475
Granted Patent B2
US 12,192,475 · App. 18/234,310 · Granted Jan 7, 2025

Predictive motion vector coding

Inventors: Alexandros Tourapis (Burbank, CA); Athanasios Leontaris (Burbank, CA)
Assignee: DOLBY LABORATORIES LICENSING CORPORATION
H04N19/139H04N19/103H04N19/105H04N19/152H04N19/159H04N19/176H04N19/182H04N19/30H04N19/46H04N19/521H04N19/573H04N19/577H04N19/583H04N19/597H04N19/61H04N19/184
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Quick Facts
Patent No.
US 12,192,475
App. No.
18/234,310
Granted
Jan 7, 2025
Kind
B2
Abstract

Overlapped block disparity estimation and compensation is described. Compensating for images with overlapped block disparity compensation (OBDC) involves determining if OBDC is enabled in a video bit stream, and determining if OBDC is enabled for one or more macroblocks that neighbor a first macroblock within the video bit stream. The neighboring macroblocks may be transform coded. If OBDC is enabled in the video bit stream and for the one or more neighboring macroblocks, predictions may be made for a region of the first macroblock that has an edge adjacent with the neighboring macroblocks. OBDC can be causally applied. Disparity compensation parameters or modes may be shared amongst views or layers. A variety of predictions may be used with causally-applied OBDC.

Claims (10)

1. An apparatus to encode a block motion compensated video bit stream, the apparatus comprising:

an input for receiving input video; and a

processor to encode the input video, wherein the processor:

encodes a first block partition of a picture of the input video having a prediction type of inter-prediction;

encodes a second block partition of the picture, the second block partition having a prediction type of inter-prediction and being edge adjacent to the first block partition;

encodes a third block partition of the picture; and

encodes an explicit signal, the explicit signal indicating a mode for the first block partition, wherein the mode is one of (i) a first mode that identifies the first block partition as being motion compensated by motion vector information of the second block partition, or (ii) a second mode that identifies the first block partition as being motion compensated by motion vector information of the third block partition without motion vector information of the second block partition.

2. The apparatus of claim 1 , wherein at least a region of the first block partition overlaps with a region of the second block partition.

3. The apparatus of claim 1 , wherein the processor includes a picture reference store.

4. The apparatus of claim 1 , wherein the processor interacts with a remote client device over a communication network.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 14, 2023
From: TOURAPIS, ALEXANDROS; LEONTARIS, ATHANASIOS
To: DOLBY LABORATORIES LICENSING CORPORATION
Reel/Frame 065558/0295 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 27, 2023
From: TOURAPIS, ALEXANDROS; LEONTARIS, ATHANASIOS
To: DOLBY LABORATORIES LICENSING CORPORATION
Reel/Frame 065375/0216 →
Continuity (13)
Continuation 18082142 · Dec 15, 2022
Continuation 17332028 · May 27, 2021
Continuation 16790337 · Feb 13, 2020
Continuation 16517382 · Jul 19, 2019
Continuation 16298051 · Mar 11, 2019
Continuation 15825612 · Nov 29, 2017
Continuation 15496795 · Apr 25, 2017
Continuation 15164423 · May 25, 2016
Continuation 14723693 · May 28, 2015
Continuation 14242975 · Apr 2, 2014
Continuation 13057204
Provisional Application 61086056 · Aug 4, 2008
Related Publication 20230388514A1 · Nov 30, 2023
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