Shanghai Zhaoxin Semiconductor Co., Ltd.

Glenfly Technology Co., Ltd.

Via Alliance Semiconductor Co., Ltd.

Ruiyang Chen

Wei Wang

Yongtao Zhao

Yuanfeng Wang

Jin Shao

Yonghai Wu

Shuoshuo Liu

Meng Dong

An integrated circuit is provided. The integrated circuit includes a first volatile memory, a second volatile memory, and a video decoder. In response to the video decoder starting video decoding on a current frame of a video stream, the video decoder reads an initial probability table for the current frame from a memory unit external to the integrated circuit, and stores the initial probability table in the first volatile memory. When a decoding phase of the current tile is completed, the video decoder complements the probability table corresponding to each row of the second volatile memory according to control flags corresponding to the rows of the first volatile memory and the second volatile memory to obtain a complete probability table, and writes the complete probability table to the memory unit.

Integrated circuit and method of storing probability tables for video decoding

An image compression method is provided. The image compression method includes steps of receiving, by a tile division generator, an input image; by the tile division generator, determining whether the input image corresponds to a partial updated region and whether the partial updated region coincides with one tile or a combination of tiles of a current frame and generating a determination result; and by the tile division generator, determining whether to re-perform tile division and compressing and encoding one portion of the current frame according to the determination result.

Image compression method and image processing system

An image processing method and an image processing device are provided. The method includes: retrieving a first and second blocks and compressing the first and second blocks into a first and second streams; in response to determining performing a dynamic memory allocation mechanism to the first and second blocks, respectively allocating a first and second private storage spaces to the first and second blocks, and allocating a shared storage space shared by the first and second blocks and divided into multiple segments; when the first private storage space is insufficient to store the first stream, using the first private storage space and a first part of the segments to cooperatively store the first stream; when the second private storage space is insufficient to store the second stream, using the second private storage space and a second part of the segments to cooperatively store the second stream.

Image processing method and image processing device

The invention introduces a method for rate control in an MB (macroblock) layer, including: calculating a prediction MAD (Mean Absolute Difference) of a current MB of a current frame according to a real MAD of a previous MB of a previous frame; calculating a real MAD of the current MB of the current frame; performing an adjustment procedure to adjust the prediction MAD of the current MB of the current frame according to the real MAD of the current MB of the current frame to obtain a final MAD of the current MB of the current frame; calculating a quantization parameter of the current MB of the current frame according to the final MAD of the current MB of the current frame; and outputting the quantization parameter of the current MB of the current frame to a quantizer.

Methods for rate control in an MB (macroblock) layer and apparatuses using the same

A graphics processing unit and method with hardware for parameter setting and providing adaptive video coding. The hardware for parameter setting has a storage device storing a parameter database. The hardware for parameter setting further performs graphic analysis on a video received by the graphics processing unit to extract graphics features, and looks up the matching set of parameters in the parameter database in accordance with the graphics features. Accordingly, video coding hardware within the graphics processing unit performs video coding based on the matching set of parameters.

Growing community of inventors

Shanghai, China

Ruiyang Chen