Shanghai Zhaoxin Semiconductor Co., Ltd.

Glenfly Tech Co., Ltd.

Ao Mei

ChuanChuan Zhu

Wei Wang

A method for compressing Demura compensation value including: acquiring original compensation values of a target panel; inputting the original compensation values into a spatial domain sampling model, performing a down-sampling to obtain spatial domain sampling values, inputting the original compensation values into a prediction mode overall model, and performing a numerical processing to obtain a plurality of mode characteristic values; performing a data reconstruction on the spatial sampling values and the plurality of mode characteristic values to obtain a reconstructed value set; performing a syntactic encoding on the spatial sampling values and the plurality of mode characteristic values to obtain a syntactic element code set; performing a mode selection according to the reconstructed value set and the syntactic element code set to obtain an optimal prediction mode; and acquiring and outputting a syntactic element code corresponding to the optimal prediction mode to obtain a Demura compensation value compression code.

Method and system for compressing Demura compensation value

Control methods of sample adaptive offset (SAO) filtering applied to an image processing system with an SAO filter are provided. The method includes the steps of: receiving video signal, wherein the video signal includes at least one group of picture (GOP) and the GOP has multiple frames, each having multiple coding tree units (CTUs); determining whether current frame is an intra-picture frame (I frame); turning on the SAO filter in response to determining that the current frame is the I frame to enable the SAO filter to perform an SAO filtering on the current frame and determining a CTU ratio of the CTUs being not performed with the SAO filtering for the current frame; and selectively turning off the SAO filter based on the CTU ratio, such that the SAO filter does not perform the SAO filtering on subsequent non-I frames in the GOP including the current frame.

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Shanghai, China

Ao Mei