Apple Inc.

At&t Intellectual Property I, L.p.

Intel Corporation

At+t Corp.

Columbia University

At&t Bell Laboratories

Other

Lucent Technologies Inc.

Sharp Laboratories, Inc.

International Business Machines Corporation

Eastman-kodak Company

American Telephone and Telegraph, Co.

Atul Puri

Barin Geoffry Haskell

Adriana Dumitras

Robert Lewis Schmidt

David William Singer

Robert Louis Schmidt

Mehmet Reha Civanlar

Daniel Socek

Neelesh Gokhale

Qian Huang

Hari Kalva

Shih-Fu Chang

Ana Belen Benitez

Seungyup Paek

Alexandros Eleftheriadis

Venugopal Srinivasan

Sebastian Possos

Andrea Basso

Joern Ostermann

Richard V Kollarits

Raj Kumar Rajendran

Chang Kee Choi

Hsi-Jung Wu

Chung-Sheng Li

John Richard Smith

James O Normile

Xiaochun Nie

Lawrence David Bergman

Lai-tee Cheok

Rangarajan Aravind

Paul Glor Howard

Tsuhan Chen

Andria H Wong

Baldine-Brunel Paul

M Reha Civanlar

Viswanathan Swaminathan

Weiping Li

Glenn Lawrence Cash

A Murat Tekalp

Yihan Fang

Chang-Kee Choi

Gerard M Fernando

Keith Deutsch

Hsueh-Ming Hang

Pallavi Shah

Seungup Paek

Lai-tee Cheock

Petrus J L Van Beck

Barin Geoffrey Haskell

Petrus J Van Beek

Daniel Socok

John Wus

Melmet Reha Civanlar

Neelesh N Gokhale

Glenn L Cash

John R Smith

Charlie Judice

Alexandros Elefteriadis

Methods, apparatuses and systems may provide for technology that quickly and accurately detects scene changes by evaluating a current frame based at least in part on a plurality of feature groups. Each of the feature groups may include a plurality of feature values determined from individual features. The individual features may include one or more spatial features of the current frame and one or more temporal features of the current frame as compared with previously evaluated temporal features of a previous reference frame. A determination of whether a scene change has occurred at the current frame may be made based at least in part on a majority vote among the plurality of feature groups.

Scene change detection

Methods, apparatuses and systems may provide for technology that performs global motion estimation. More particularly, implementations relate to technology that provides accurate global motion compensation in order to improve video processing efficiency. In some implementations, a highly adaptive and accurate approach may be used to address the problem of estimation and compensation of global motion in video scenes. The solution may be content adaptive as it uses adaptive modeling of motion using best of multiple models that are used to estimate global motion.

Global motion estimation and modeling for accurate global motion compensation for efficient video processing or coding

Methods, apparatuses and systems may provide for technology that provides adaptive Long Term Reference (LTR) frame techniques for video processing and/or coding. More particularly, implementations described herein may utilize fast content analysis based Adaptive Long Term Reference (LTR) methods and systems that can reliably decide when to turn LTR on/off, select LTR frames, and/or assign LTR frame quality for higher efficiency and higher quality encoding with practical video encoders.

Automatic adaptive long term reference frame selection for video process and video coding

Techniques related to improved video coding based on face detection, region extraction, and tracking are discussed. Such techniques may include performing a facial search of a video frame to determine candidate face regions in the video frame, testing the candidate face regions based on skin tone information to determine valid and invalid face regions, rejecting invalid face regions, and encoding the video frame based on valid face regions to generate a coded bitstream.

Fast and robust face detection, region extraction, and tracking for improved video coding

Techniques related to intra video frame or image coding using wavelets and High Efficiency Video Coding (HEVC) are discussed. Such techniques may include wavelet decomposition of a frame or image to generate subbands and coding the subbands using compliant and/or modified HEVC coding techniques.

Efficient, compatible, and scalable intra video/image coding using wavelets and HEVC coding

A system and method for quality restoration filtering is described that can be used either in conjunction with video coding, or standalone for postprocessing. It uses wiener filtering approach in conjunction with an efficient codebook representation.

Content adaptive impairment compensation filtering for high efficiency video coding

Techniques related to improved video frame segmentation based on motion, color, and texture are discussed. Such techniques may include segmenting a video frame of a video sequence based on differencing global motion or dominant motion from local motion in the video frame.

Fast motion based and color assisted segmentation of video into region layers

Techniques related to improved video coding based on skin tone detection are discussed. Such techniques may include selecting from static skin probability histograms and/or a dynamic skin probability histogram based on a received video frame, generating a skin tone region based on the selected skin probability histogram and a face region of the video frame, and encoding the video frame based on the skin tone region to generate a coded bitstream.

Fast and robust human skin tone region detection for improved video coding

Techniques related to improved video encoding including content, psychovisual, region of interest, and persistence based adaptive quantization are discussed. Such techniques may include generating block level rate distortion optimization Lagrange multipliers and block level quantization parameters for blocks of a picture to be encoded and determining coding parameters for the blocks based on a rate distortion optimization using the Lagrange multipliers and quantization parameters.

Content, psychovisual, region of interest, and persistence based adaptive quantization for video coding

Techniques related to improved video denoising using content adaptive motion compensated temporal filtering are discussed. Such techniques may include determining whether a block of a video frame is motion compensable and, when the block is motion compensable, generating a denoised block corresponding to the block using the block itself and averaged reference blocks from two or more motion compensation reference frames.

Content adaptive motion compensated temporal filtering for denoising of noisy video for efficient coding

A method of content adaptive decoding is provided. The method involves receiving a bitstream encoded wherein video content is segmented into portions based on predefined classifications or models. Based on the segment classifications, each segment or portion is encoded with a different encoder chosen from a plurality of encoders. Each encoder is associated with a model. The chosen encoder is particularly suited to encoding the unique subject matter of the segment. The coded bit-stream for each segment includes information regarding which encoder was used to encode that segment. A matching decoder of a plurality of decoders is chosen using the information in the coded bitstream to decode each segment using a decoder suited for the classification or model of the segment. If scenes exist which do not fall in a predefined classification, or where classification is more difficult based on the scene content, these scenes are segmented, coded and decoded using a generic coder and decoder.

Computing device for content adaptive video decoding

A method of decoding, composing and rendering a scene. First information is obtained, the first information including a part of a MPEG-4 BIFS scene description stream and at least one coded MPEG-4 media stream. The first information is decoded by invoking a BIFS scene decoder and one or more specific media decoders that are required by the scene. Second information is obtained, the second information including a second part of a BIFS scene description stream that contains a reference to an external application. The second information is decoded by invoking the BIFS scene decoder and an external application decoder. An integrated scene is composed, the integrated scene including one or more decoded MPEG-4 media objects and one or more external application objects specified in the decoded scene descriptions streams. The composed integrated scene is rendered on a display.

Methods and apparatus for integrating external applications into an MPEG-4 scene

A method and system for description of synthetic audiovisual content makes it easier for humans, software components or devices to identify, manage, categorize, search, browse and retrieve such content. For instance, a user may wish to search for specific synthetic audiovisual objects in digital libraries, Internet web sites or broadcast media; such a search is enabled by the invention. Key characteristics of synthetic audiovisual content itself such as the underlying 2d or 3d models and parameters for animation of these models are used to describe it. To represent features of synthetic audiovisual content, depending on the description scheme to be used, a number of descriptors are selected and assigned values. The description scheme instantiated with descriptor values is used to generate the description, which is then stored for actual use during query/search.

Synthetic audiovisual description scheme, method and system for MPEG-7

Techniques related to content adaptive prediction distance analysis and hierarchical motion estimation for video coding may address the general problem of designing a new, advanced video codec that maximizes the achievable compression efficiency while remaining sufficiently practical for implementation on various platforms including limited devices. More specifically, certain motion estimation techniques may be adaptive to properties of the content and results in improved motion compensation, lower computational complexity, and lower cost of motion vector coding as compared to existing solutions.

Content adaptive prediction distance analyzer and hierarchical motion estimation system for next generation video coding

Techniques related to projected interpolation prediction generation for video coding are described.

Projected interpolation prediction generation for next generation video coding

Growing community of inventors

Redmond, WA, United States of America

Atul Puri