Corresponding refinement coefficient based on a history of transform coefficient values ​​coded

摘要

This disclosure describes techniques for coding refinement coefficients of an enhancement layer in a scalable video coding (SVC) scheme. According to the disclosed method is the step of estimating one or more refinement coefficient values ​​associated with a current layer of the SVC scheme based on the step, and the history to evaluate a history of transform coefficient values ​​associated with one or more previous layers of, the SVC scheme It may comprise. In the encoding side, the coding process may include the step of excluding the information for one or more refinement coefficient values ​​from the bitstream, and the step of signaling to the decoder that such information is excluded from the bitstream. In the decoding side, coding process, such information based on the history associated with one or more previous layers of the step, and the SVC scheme to analyze the bit stream to identify the information for signaling to the decoder that excluded from the information bit stream It includes generating. ; Coding refinement coefficients, the transform coefficients, significant coefficients, SVC, bitstream, and an enhancement layer