Video encoding method and device

专利名称：Video encoding method and device发明人：Stephan Oliver Mietens申请号：US10578072申请日：20041101

公开号：US200700240A1公开日：20070201

专利附图：

摘要：The invention relates to a video encoding method provided for encoding aninput image sequence consisting of successive groups of frames in which each frame isitself subdivided into blocks, and to a corresponding video encoding device. This methodand device perform the steps of preprocessing the sequence on the basis of a so-called

content-change strength (CCS) computed for each frame, generating a predicted frameusing motion vectors estimated for each block, applying to a difference signal betweenthe current frame and the last predicted frame a transformation sub-step producing aplurality of coefficients and followed by a quantization sub-step of said coefficients, andcoding said quantized coefficients. According to the invention, the CCS is used in thequantization sub-step for modifying the quantization factor used in this sub-step, the CCSand the quantization factor increasing or decreasing simultaneously.

申请人：Stephan Oliver Mietens

地址：Eindhoven NL

国籍：NL

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