Intel Corporation

Microsoft Technology Licensing, LLC

Ce Wang

Changliang Wang

Bo Zhao

Yunbiao Lin

Bo Qiu

Ping Liu

Jianwei Yang

Wenyi Tang

Yating Wang

Zhan Lou

Yongfa Zhou

Walid Ali

Yu Yang

Shankar Lakshmi Regunathan

Sridhar Srinivasan

Chih-Lung Lin

Ming-Chieh Lee

Timothy Mark Moore

Pohsiang Hsu

Jie Liang

Yu Chan Yang

Bharath Siravara

Guo-Wei Shieh

Bruce Lin

Changliang Charlie Wang

An embodiment of an adaptive video encoder may determine headset-related information including at least one of focus-related information and motion-related information and determine one or more video encode parameters based on the headset-related information. The adaptive video encoder may also encode a macroblock of a video image based on the one or more determined video encode parameters. Other embodiments are disclosed and claimed.

Adaptive foveated encoder and global motion predictor

An embodiment of an adaptive video encoder may include technology to determine headset-related information including at least one of focus-related information and motion-related information, and determine one or more video encode parameters based on the headset-related information. Other embodiments are disclosed and claimed.

Various embodiments are generally directed to techniques for incorporating full-resolution frames in a coding order and corresponding thumbnail images of a motion video into compressed video data. A device to compress video frames includes a processor component; and a compression component for execution by the processor component to intersperse at least one compressed thumbnail frame (T-frame) among multiple compressed full-resolution frames of a motion video arranged in a coding order in a compressed video data, the T-frame comprising multiple thumbnail images of the motion video in compressed form. Other embodiments are described and claimed.

Techniques for inclusion of thumbnail images in compressed video data

Architecture for enhancing the compression (e.g., luma, chroma) of a video signal and improving the perceptual quality of the video compression schemes. The architecture operates to reshape the normal multimodal energy distribution of the input video signal to a new energy distribution. In the context of luma, the algorithm maps the black and white (or contrast) information of a picture to a new energy distribution. For example, the contrast can be enhanced in the middle range of the luma spectrum, thereby improving the contrast between a light foreground object and a dark background. At the same time, the algorithm reduces the bit-rate requirements at a particular quantization step size. The algorithm can be utilized also in post-processing to improve the quality of decoded video.

Entropy coding efficiency enhancement utilizing energy distribution remapping

Techniques to perform fast motion estimation are described. An apparatus may comprise a motion estimator operative to receive as input a current frame and a reference frame from a digital video sequence. The motion estimator may generate and output a motion vector. The motion vector may represent a change in position between a current block of the current frame and a matching reference block of the reference frame. The motion estimator may utilize an enhanced block matching technique to perform block matching based on stationary and spatially proximate blocks. Other embodiments are described and claimed.

Techniques to perform fast motion estimation

The generation and delivery of key frames to clients of a video conference are performed in response to a need for a synchronization point. Instead of automatically sending a key frame periodically to each of the clients in the video conference, a key frame is sent to one or more clients upon the occurrence of an event in the video conference. For example, a key frame may be sent to a client when the client joins the video conference. A key frame may also be sent to a client that has packet loss, upon the request of a client, a speaker change within the video conference, when a new stream is added by the client, and the like. The clients in the video conference that are not affected by the event continue to receive predicted frames.

Reducing use of periodic key frames in video conferencing

A video encoder/decoder utilizes a bistream syntax that provides an independently decodable, partial picture unit, which may be in the form of a unit containing one or more contiguous rows of macroblocks (called a slice). This slice layer provides a flexible combination of error-resilience and compression efficiency. The slice layer encodes an efficient addressing mechanism (e.g., a syntax element specifying a beginning macroblock row of the slice layer), as well as an efficient mechanism to optionally retransmit picture header information. The slice layer provides decoding and reconstruction independence by disabling all forms of prediction, overlap and loop-filtering across slice-boundaries. This permits a slice coded in intra-mode to be reconstructed error-free, irrespective of errors in other regions of the picture.

Slice-layer in video codec

Growing community of inventors

Bellevue, WA, United States of America

Ce Wang