Invention Grant
- Patent Title: Methods and apparatuses for performing entropy encoding and entropy decoding with size determination of at least one bitstream portion
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Application No.: US15422484Application Date: 2017-02-02
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Publication No.: US10602192B2Publication Date: 2020-03-24
- Inventor: Tung-Hsing Wu , Li-Heng Chen , Han-Liang Chou
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsin-Chu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsin-Chu
- Agent Winston Hsu
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N19/91

Abstract:
An entropy encoder includes an entropy encoding circuit and a size determining circuit. The entropy encoding circuit receives symbols of a pixel group, and entropy encodes data derived from the symbols of the pixel group to generate a bitstream segment which is composed of a first bitstream portion and a second bitstream portion. The first bitstream portion contains encoded magnitude data of the symbols of the pixel group, and the second bitstream portion contains encoded sign data of at least a portion of the symbols of the pixel group. The size determining circuit determines a size of a bitstream portion, wherein the bitstream portion comprises at least one of the first bitstream portion and the second bitstream portion.
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