Spreadtrum Communications (shanghai) Co., Ltd.

Dell Products Inc.

Xiaowei Luo

Fuhuei Lin

Jiali Shen

Jian Ding

Hong Qing Zhou

Xiao Liu

Xiaofeng Peng

Minjie Chen

Xiaoqin Liu

Hu Wei

Yingyan Zheng

Sen Wang

Junyi Zhang

Yourong Alan Wang

Qingqing Zhao

Guangyao Li

Chunjuan Zhou

Duan Xue

Heng Liu

A method for optimizing HDR video display processing, comprises: acquiring original video stream data; decoding the original video stream data to obtain metadata and image frame data of each image frame; in an m-th iteration, for each image frame, according to a characteristic parameter of a target display panel and the metadata, performing HDR processing on the image frame data by using an HDR video display processing algorithm, to obtain the image frame data subjected to HDR processing and corresponds to the original video stream data in the m-th iteration; and according to a playing display detection result, on the target display panel, of the image frame data that has been subjected to HDR processing and is obtained in the m-th iteration, optimizing an algorithm used in an (m+1)th iteration until the optimization of the HDR video display processing algorithm is completed.

Method and apparatus for optimizing HDR video display processing, and storage medium and terminal

Techniques manage log data. Such techniques involve receiving log data describing a state of an application system at a target time point. Such techniques further involve determining whether a level of the log data satisfies a predetermined level. Such techniques further involve, in response to determining that the level of the log data satisfies the predetermined level, storing log data within a predetermined range adjacent to the target time point to a log repository of the application system, the predetermined range indicating the amount of log data expected to be stored.

Method, device, and program product for managing log data

A tetrahedral interpolation calculation method and apparatus, a gamut conversion method and apparatus, and a medium are provided, the tetrahedral interpolation calculation method comprising: obtaining coordinates of an interpolation point in a sampling space, a side length of a cube formed of nearby eight sampling points surrounding the interpolation point in the sampling space, and mapping values of four vertices of a tetrahedron surrounding the interpolation point, wherein the four vertices are four out of the eight sampling points; calculating a volume of the tetrahedron, and volumes of four sub-tetrahedrons formed of the interpolation point and arbitrary three vertices in the tetrahedron, based on coordinates of the interpolation point in the sampling space, and the side length of the cube formed of nearby eight sampling points surrounding the interpolation point in the sampling space; and obtaining an interpolation value of the interpolation point, based on a tetrahedral interpolation theorem formula, the volume of the tetrahedron, volumes of four sub-tetrahedrons, and mapping values of the four vertices of the tetrahedron.

Tetrahedral interpolation calculation method and apparatus, gamut conversion method and apparatus, and medium

Method and apparatus for de-interlacing a television signal are provided. The method includes: determining whether a pixel to be interpolated is in a strictly static mode; if it is in the strictly static mode, obtaining a pixel value of a first pixel in a previous field which corresponds to the pixel to be interpolated, and setting a pixel value of the pixel to be interpolated to be equal to the pixel value of the first pixel; if it is not in the strictly static mode, determining gradient bands along a plurality of directions by taking the pixel to be interpolated as a center, determining a direction of the pixel to be interpolated based on the gradient bands, and setting the pixel value of the pixel to be interpolated by interpolation based on the direction. Accuracy of the pixel value of the pixel to be interpolated may be improved.

Method and apparatus for de-interlacing television signal

A method of dithering of an image is described. The method includes analyzing each of a plurality of pixels of the image, wherein each pixel of the plurality of pixels exhibits integer value N-bit color depth and determining a particular index value of each pixel of the image, a particular numerical value associated with a particular color component of each pixel of the image, and a particular threshold value associated with the particular color component of each pixel of the image. The particular threshold value is common between pixels of the image separated by a predetermined number of pixels. The method further includes modifying, based on the determining, each of the plurality of pixels of the image to exhibit integer value M-bit color depth, wherein integer value M is less than integer value N.

Method and system for image dithering

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Shanghai, China

Xiaowei Luo