Patent ID: 11949868
Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOL
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An apparatus for selecting a context model of a quantized coefficient end flag, comprising a processor, configured to execute the following program modules stored in a memory:
obtaining module, for obtaining a scanning position POS of a non-zero coefficient corresponding to current quantized coefficient end flag in a specific scanning order; wherein the scanning position POS is a subscript of the non-zero coefficient in the scanning order;
selecting module, for configuring a first context model array, and using a fixed value as the base to calculate the logarithmic value of the value of the scanning position POS plus 1, and according to the logarithmic value, selecting a first context model from the first context model array; using the first context model as the context model for encoding or decoding a binary symbol of the current quantized coefficient end flag.