首页>
外国专利>
Method and apparatus for the quantization and inverse quantization rectangular block of coefficients
Method and apparatus for the quantization and inverse quantization rectangular block of coefficients
展开▼
机译:用于系数的量化和逆量化矩形块的方法和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
A system includes an encoder that performs quantization on a rectangular block of quantized transform coefficients and a decoder that performs dequantization on a rectangular block of transform coefficients. The decoder is configured to receive a W×H block of quantized transform coefficients, wherein W is a row width of the block and H is a column height of the block. The decoder is further configured to apply dequantization processing to the W×H block of quantized transform coefficients to generate a block of transform coefficients, which are used to generate a picture corresponding to the W×H block of quantized transform coefficients. The dequantization processing comprises applying a first dequantization algorithm when an output M of a function M=log2({square root over (W·H)}) is equal to an integer value, and applying a second dequantization algorithm when the output M is equal to a non-integer value.
展开▼