Other

Cisco Technology, Inc.

Tech 5

James Au

Arturo A Rodriguez

Samie Beheydt

Kenn W Heinrich

Jan Louis De Lameillieure

Barry Moss

Stephen Farley

Jaehin In

Ali Jerbi

Jiawei Huang

Receiving a video stream in a transport stream comprising a plurality of compressed pictures, wherein information in the video stream includes plural data fields comprising: a first data field corresponding to a location in the video stream of a potential splice point, wherein the first data field identifies a location in the video stream after the location of the received information; a second data field corresponding to decompressed pictures yet to be output (DPYTBO) by a video decoder at the identified potential splice point (IPSP) when the video decoder decompresses the video stream, wherein the second data field is a number corresponding to the DPYTBO by the video decoder at the IPSP; and a third data field corresponding to pictures with contiguous output times (WCOT), wherein the third field corresponds to a set of pictures WCOT of the DPYTBO by the video decoder at the IPSP.

Managing splice points for non-seamless concatenated bitstreams

Systems and methods may be provided embodying a novel approach to measuring degradation (or distortion) by analyzing disparity maps from original 3D video and reconstructed 3D video. The disparity maps may be derived using a stereo-matching algorithm exploiting 2-view stereo image disparity. An overall distortion measure may also be determined resulting from the weighted sum of plural measures of distortions, one of the plural distortion measures corresponding to a measure of disparity degradation, and another one corresponding to a measure of geometrical distortion. The measure (or overall distortion measure) is used during real-time encoding to effect various decisions, including mode decision in the coding of each corresponding stereo pair, and in rate control (including stereo pair quantization).

Stereo matching for 3D encoding and quality assessment

A video-processing architecture. In a specific embodiment, the architecture includes a first set of modules that accommodate certain functional traffic flowing between each module thereof. A broadcast module broadcasts video traffic to one or more of the first set of modules. In a more specific embodiment, the first set of modules and the broadcast module are configured to facilitate isolation of video traffic from functional traffic. The first set of modules includes plural modules having similar module architecture. The similar module of architecture includes a local memory in each of the plural modules, wherein the local memory stores video data associated with the video traffic. The local, memory includes a first memory bank for storing input pixel data and a second memory bank for storing reconstructed pixel data.

Video processing architecture

Processing and managing splice points for the concatenation of two video streams

An entropy coding apparatus. In a specific embodiment, the entropy coding apparatus includes a renormalization process and an encode-decision process that communicates with the renormalization process. The encode-decision process is adapted to run in parallel with the renormalization process without the renormalization process being nested therein. In a more specific embodiment, the entropy coding apparatus includes an entropy encoder that is H.264 compliant. The encode-decision process includes a first mechanism for pre-computing certain parameters to eliminate the need to nest the renormalization process within the encode-decision process. The renormalization process and the encode-decision process are components of a Context Adaptive Binary Arithmetic Coding (CABAC) module.

Entropy coding for video processing applications

A video processing system. In a specific embodiment, the system implements a system for processing macroblocks that includes a first module for processing a macroblock. A controller provides a first macroblock to the first module and provides a second macroblock to the first module, without waiting for the first module to complete processing of the first macroblock, when information is available to the first module to process the second macroblock. The first module may implement a pipelined processor that is adapted to process macroblocks simultaneously. Alternatively, the first module includes a first engine and a second engine, which may run in parallel as parallel engines. In a more specific embodiment, an entire image frame is treated as a single slice and processed by the system via a pipelined engines or parallel engines.

Parallel or pipelined macroblock processing

A system for processing sub-blocks of a macroblock of a video frame. In an example embodiment, the system includes a first module that is adapted to process each sub-block of the macroblock, wherein each sub-block is associated with a predetermined position in a first sequence. The processing of certain sub-blocks in the first sequence requires results of processing of one or more previously processed sub-blocks in the first sequence. A controller selectively enables the first module to process each sub-block of a second sequence that is altered from the first sequence so that the first module implements parallel or pipelined processing of certain sub-blocks of the macroblock. In a more specific embodiment each sub-block in the first sequence of sub-blocks is consecutively numbered 0-15 according to H.264 standards.

Intra-macroblock video processing

Systems and methods that receives a video stream in a transport stream, the first video stream comprising a plurality of compressed pictures, and that receives information in the video stream, wherein the information includes plural data fields, the received information comprising: a first data field corresponding to a location in the video stream of a potential splice point in the video stream, wherein the value of the first data field identifies a location in the video stream after the location of the received information in the video stream; a second data field corresponding to decompressed pictures yet to be output (DPYTBO) by a video decoder at the identified potential splice point (IPSP) when the video decoder decompresses the video stream, wherein the value of the second data field is a number corresponding to the DPYTBO by the video decoder at the IPSP; and a third data field corresponding to pictures with contiguous output times (WCOT), wherein the value of the third field corresponds to a set of pictures WCOT of the DPYTBO by the video decoder at the IPSP.

Processing and managing pictures at the concatenation of two video streams

A system for selectively handling information. In an example embodiment, the system includes a first mechanism for processing information pertaining to one or more sub-blocks of a macroblock in a first stream and a second stream, and outputting a first processed stream and a second processed stream in response thereto. A second mechanism selectively combines information in the first processed stream and the second processed stream and provides an updated version of the first stream or the second stream to the first mechanism in response thereto. In a more specific embodiment, the first mechanism includes a processor, such as in intra 4&#xd7;4 search, module, that processes a sub-block of a macroblock by performing intra prediction for the sub-block. The processor is adapted to process sub-blocks of a macroblock in parallel, such as in a pipelined fashion or via separate engines capable of operating in parallel.

Growing community of inventors

Richmond, CA, United States of America

James Au