Future Wei Technologies, Inc.

Samsung Electronics Co., Ltd.

Other

Huawei Technologies Co., Limited

Zhan Ma

Wei W Wang

Jing Ye

Imed Bouazizi

Sung-Oh Hwang

Haoping Yu

Meng Xu

Xian Wang

Felix C A Fernandes

Wei Wang

Youngkwon Lim

Felix Carlos Fernandes

Kong Posh Bhat

Ankur Saxena

Wang Lin Lai

Sungoh Hwang

Mian Dong

Xin Li

Karthikeyan S Vadivel

An apparatus and method for screen content encoding includes deriving a palette table and a color index map based on a coding unit (CU). The method also includes encoding the palette table and encoding the color index map. The method further includes combining the encoded palette table and the encoded color index map for transmission to a receiver, where the palette table and index map are decoded to reconstruct a pixel block.

Advanced screen content coding with improved color table and index map coding methods

A method and device for coding screen content into a bitstream by selecting a color palette table for a coding unit (CU) of screen content, creating a color index map having indices for the coding unit (CU), and encoding the selected color palette table and the color index map for the CU into a bitstream.

Advanced screen content coding solution

A method and apparatus for use of input messages in the media transport to support and improve the interactive communication between a media content server and an end user is disclosed. In one embodiment, the input message is encapsulated into any existing media transport protocol. In another embodiment, several types of the input messages are defined to deliver information and requests relating to interactions between the end user and the media content server.

Method and apparatus for use of input messages in media transport to support interactive communications

A method and apparatus for the single input multiple output based media adaptation is disclosed. In one embodiment, such adaption is performed in two steps. On step, content correlation between different compression schemes is used to perform the inter-format adaptation of a stream of a compression format to an intermediate output stream of another compression scheme with the same quality level. On step, content correlation between different quality levels is used to perform the intra-format adaptation of the intermediate output stream to multiple output streams at different quality levels with the same compression format. In one embodiment, content correlation is used to limit the search for mode candidates when performing both steps.

Method and apparatus for the single input multiple output (SIMO) media adaptation

An apparatus is configured to perform a method for screen content encoding. The method includes deriving a palette table and a color index map based on a coding unit (CU). The method also includes encoding the palette table and encoding the color index map. The method further includes combining the encoded palette table and the encoded color index map for transmission to a receiver, where the palette table and index map are decoded to reconstruct a pixel block.

Advanced screen content coding with improved palette table and index map coding methods

An encoding apparatus and coding methods. The method includes receiving a video frame including screen content, generating a block containing an index map of colors for screen content in the video frame, wherein the block includes strings of index values, encoding one or multiple consecutive index values in a first string of index values using same escape colors index values and a run value identifying how many of the same escape color index values have been consecutively encoded, where the escape colors index values represent escape colors, and where the escape colors are colors not included in a palette corresponding to the block, sequentially encoding the escape colors corresponding to the one or multiple consecutive index values after all of the strings of index values of the block have been encoded, and transmitting the strings of index values and the escape colors in a bitstream to a decoding apparatus.

Palette mode in high efficiency video coding (HEVC) screen content coding (SCC)

Apparatus and methods for a Motion Picture Experts Group (MPEG) media transport (MMT) device for sending or receiving media content is provided. The MMT device comprises a memory unit and a controller. The controller is configured to measure an available bandwidth, receive fragments of a first encoded stream of the media content and fragments of a second encoded stream of the same media content based on the available bandwidth and a current transmission bandwidth. A mixed encoded stream comprises the fragments received from the first encoded stream and the fragments received from the second encoded stream.

Method and apparatus for rate adaptation in motion picture experts group media transport

A method includes calculating a complexity value for each segment or version of multimedia content. The multimedia content has multiple versions associated with common content and different encoding parameters, and each version is divided into segments. The method also includes adaptively streaming the multimedia content to a client device based on at least some of the calculated complexity values. The complexity value for each segment or version is calculated by summing multiple operation complexity values defining complexities of operations for decoding the segment or version. The operation complexity values could include values for a bit parsing operation, a buffer initialization operation, an intra-prediction operation, an inverse quantization and transform operation, a reference block fetch operation, a fractional interpolation operation, and in-loop deblocking operation, a sample adaptive offset correction operation, an adaptive loop filtering operation, and a de-ringing filtering operation.

Method and system for complexity adaptive streaming

Presented systems and methods facilitate screen content coding. A system can comprises: a processing component configured to execute coding operations and a storage component configured to store information for the processing component, including the color table and color index map. The coding operations can include: receiving information associated with a plurality of pixels; creating a color table, the color table includes color values (e.g., of the pixels) and corresponding indices; creating a color index map wherein each index of the color map maps a pixel to an index value of the color table; and performing coding operations corresponding to the color table and color index map. In one exemplary implementation, index values of the color table are encoded/decoded during color table and index map coding rather than the actual raw color values for each pixel. Various types of compression and coding can be implemented (e.g., lossless, lossy, intra-prediction, inter-prediction, etc.).

Screen content coding systems and methods

An encoding apparatus, decoding apparatus, and coding methods. The encoding apparatus includes a processor configured to receive a video frame including screen content, generate a block containing an index map of colors for screen content in the video frame, wherein the block includes strings of index values sharing a same escape color index value, wherein the escape color index value represents an escape color, encode each of the strings of index values in the block, and sequentially encode the escape colors after each of the strings of index values in the block has been encoded. A transmitter operably coupled to the processor is configured to transmit the strings of index values and the escape colors in a bitstream to a decoding apparatus.

A video decoder performs a method of dynamic voltage/frequency scaling (DVFS) for video processing. The method includes parsing a bitstream associated with a video to determine embedded information associated with a complexity of a first portion of the video, estimating the complexity of the first portion of the video using the embedded information, determining a voltage and frequency to be used for decoding the first portion of the video based on the estimated complexity, and decoding the first portion of the video at the determined voltage and frequency.

Dynamic voltage/frequency scaling for video processing using embedded complexity metrics

An apparatus and method for video fingerprinting are provided. The method includes, for each frame of a video sequence including a plurality of frames, removing a portion of the frame, dividing a remaining portion of the frame into blocks, dividing each block into sub-blocks, computing a block level feature as a mean of pixels in each sub-block within the block, concatenating all block level features in the frame, and concatenating features of all frames in the video sequence.

Growing community of inventors

Fremont, CA, United States of America

Zhan Ma