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Patent

Video encoding method and decoding method, apparatuses therefor, programs therefor, and storage media for recording the programs

Yukihiro Bandoh, +2 more
TLDR
In this paper, a video encoding method, in which a video signal consisting of two or more signal elements is targeted to be encoded, includes a step of setting a downsampling ratio is set for a specific signal element in a frame, in accordance with the characteristics in the frame.
Abstract: 
A video encoding method, in which a video signal consisting of two or more signal elements is targeted to be encoded, includes a step of setting a downsampling ratio is set for a specific signal element in a frame, in accordance with the characteristics in the frame; and a step of generating a target video signal to be encoded, by subjecting the specific signal element in the frame to downsampling in accordance with the set downsampling ratio. The frame may be divided into partial areas in accordance with localized characteristics in the frame; and a downsampling ratio for a specific signal element in these partial areas may be set in accordance with the characteristics in each partial area.

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Patent

Systems and methods for error resilience and random access in video communication systems

Stephen Cipolli, +6 more
TL;DR: In this paper, a set of video frames or pictures in a video signal transmission is designated for reliable or guaranteed delivery to receivers using secure or high reliability links, or by retransmission techniques.
Patent

System and method for providing error resilience, random access and rate control in scalable video communications

Alexandros Eleftheriadis, +3 more
TL;DR: In this article, error resilient transmission, rate control, and random access in video communication systems that use scalable video coding are provided, where error resilience is obtained by using information from low resolution layers to conceal or compensate loss of high resolution layer information.
Patent

Apparatus and method of sample adaptive offset for luma and chroma components

Chih-Ming Fu, +4 more
TL;DR: In this article, a method and apparatus for processing reconstructed video using in-loop filter in a video coding system are disclosed, wherein various aspects of in-layer filter information are taken into consideration for efficient coding such as the property of quadtree-based partition, boundary conditions of a block, in-loops filter information sharing between luma and chroma components, indexing to a set of inloop filter information, and prediction of filter information.
Patent

High-Throughput Image and Video Compression

Alexander Garland MacInnis, +2 more
TL;DR: In this paper, a system implements multiple coding formats for coding pixels within a picture, which may be selected based on one or more of the input picture and encoding variables, and the coding formats may have varying chroma sampling densities.
Patent

Systems and methods for error resilience in video communication systems

Alexandros Eleftheriadis, +2 more
TL;DR: In this paper, a set of video frames or pictures in a video signal transmission is designated for reliable or guaranteed delivery to receivers using secure or high reliability links, or by retransmission techniques.
References
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Journal ArticleDOI

Overview of the H.264/AVC video coding standard

Thomas Wiegand, +3 more
- 01 Jul 2003 - 
TL;DR: An overview of the technical features of H.264/AVC is provided, profiles and applications for the standard are described, and the history of the standardization process is outlined.
Proceedings ArticleDOI

The H.264/AVC Advanced Video Coding Standard: Overview and Introduction to the Fidelity Range Extensions

Gary J. Sullivan, +2 more
TL;DR: An overview of this standard is provided, including the highlights of the capabilities of the new FRExt features, and some comparisons with the existing MPEG-2 and MPEG-4 Part 2 standards are provided.
Patent

Coding of motion vector information

Sridhar Srinivasan, +4 more
TL;DR: In this article, techniques and tools for encoding and decoding motion vector information for video images are described, where a video encoder yields an extended motion vector code by jointly coding, for a set of pixels, a switch code, motion vectors information, and a terminal symbol indicating whether subsequent data is encoded for the set.
Patent

Method and system for selecting interpolation filter type in video coding

Antti Hallapuro, +2 more
TL;DR: In this paper, a method and system for coding a video sequence based on motion compensated prediction (642), wherein an interpolation filter (640) is used to generate predicted pixel values for picture blocks in the video sequence.
Patent

Adaptive interpolation filter system for motion compensated predictive video coding

Huipin Zhang, +1 more
TL;DR: In this article, a plurality of discrete interpolation filters are positioned in a three dimensional grid within the search space, and the candidate filter resulting in the smallest prediction error is identified as the current minimum filter and the search repeated until the prediction error was minimized.