Nxp Usa, Inc.

Agora Lab, Inc.

Zhenyong Chen

Wei Dai

Zhonghou Zheng

Jian Lou

Jiali Li

Qianzong Chen

Xianzhong Li

Xiong Xiao

A decoding method includes: decoding from the video bitstream a prediction status parameter indicative of whether SOP is enabled; if the SOP is enabled, determining a SOP type indicative of a specific operation for predicting a current picture of the video bitstream; and determining a predicted picture by applying the specific operation to at least one of a reference picture for the current picture and the current picture, in which the specific operation includes at least one of rotation and zoom. An encoding method includes: if SOP is enabled, determining SOP data indicative of a specific operation for predicting a current picture of a video sequence; determining a predicted picture by applying the specific operation to at least one of a reference picture for the current picture and the current picture, in which the specific operation includes at least one of rotation and zoom; and encoding the SOP data.

Specific operation prediction in video compression

A data-clustering method generates data clusters for a set of data points. A region of interest containing the data points and a center matrix for the region of interest are defined, where the center matrix includes an array of center points defining centers of overlapping circles. The data points are mapped to corresponding circles based on near center points. Pairs of overlapping circles are merged based on relative numbers of data points lying in overlap regions of the pairs of overlapping circles compared to total numbers of data points within the corresponding circles. Circles belonging to the one or more data clusters are identified based on merged pairs of overlapping circles, and data points belonging to the one or more data clusters are identified based on the corresponding circles. The method may be performed by a computer having a heterogeneous architecture with parallel processors.

Data clustering employing mapping and merging

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Shanghai, China

Zhenyong Chen