Invention Grant
- Patent Title: Methods and apparatuses of video data processing with conditionally quantization parameter information signaling
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Application No.: US16304203Application Date: 2017-05-27
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Publication No.: US10904580B2Publication Date: 2021-01-26
- Inventor: Han Huang , Ching-Yeh Chen , Shan Liu , Xiaozhong Xu , Tzu-Der Chuang , Yu-Wen Huang
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsin-Chu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsin-Chu
- Agency: McClure, Qualey & Rodack, LLP
- Priority: WOPCT/CN2016/087005 20160624
- International Application: PCT/CN2017/086267 WO 20170527
- International Announcement: WO2017/206826 WO 20171207
- Main IPC: H04N19/96
- IPC: H04N19/96 ; H04N19/119 ; H04N19/174 ; H04N19/176 ; H04N19/186 ; H04N19/46 ; H04N19/124

Abstract:
Processing methods and apparatuses for video data of a color component comprise receiving input data associated with a current coding block (CB) in a current slice, where the video data is partitioned into multiple CBs according to a partitioning method. A Quantization Parameter (QP) minimum block area or a depth flag is determined and an area of the current CB according to a width and a height or a combined depth of the current CB is calculated and compared with the QP minimum block area or the depth flag. Signaling of QP information for the current CB is conditioned by the comparing result. The QP information for the current CB is used to quantize a residual signal of the current CB or recovering a quantized residual signal of the current CB.
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