首页>
外国专利>
Method for carrying out integer approximation of transform coefficients, and coder and decoder
Method for carrying out integer approximation of transform coefficients, and coder and decoder
展开▼
机译:进行变换系数的整数近似的方法以及编码器和解码器
展开▼
页面导航
摘要
著录项
相似文献
摘要
A limited value range is defined for obtaining approximated integer cosine transform coefficients. ;The transform coefficients of the base vectors for the submatrices are selected by taking into account the orthogonality condition so that the sum of their squares yields the square of the constant component coefficient. The coefficients of the variable components are derived from these coefficients. ;These measures yield the advantage that in quantization and normalization, a uniform normalization and quantization factor may be used for all coefficients.
展开▼