Invention Grant
- Patent Title: Simplified processing of weighted prediction syntax and semantics using a bit depth variable for high precision data
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Application No.: US17224911Application Date: 2021-04-07
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Publication No.: US11523105B2Publication Date: 2022-12-06
- Inventor: Yue Yu , Limin Wang
- Applicant: ARRIS Enterprises LLC
- Applicant Address: US GA Suwanee
- Assignee: ARRIS Enterprises LLC
- Current Assignee: ARRIS Enterprises LLC
- Current Assignee Address: US GA Suwanee
- Agency: Chernoff, Vilhauer, McClung & Stenzel, LLP
- Main IPC: H04N19/105
- IPC: H04N19/105 ; H04N19/577 ; H04N19/573 ; H04N19/70 ; H04N19/139 ; H04N19/184

Abstract:
Particular embodiments may remove a condition check in the semantics for checking a high-precision data flag. This simplifies the semantics used in the encoding and decoding process. In this case, even if the high-precision data flag is not set, the value of the weighted prediction syntax element is set by the BitDepth variable. However, even if the BitDepth is not considered high-precision data, such as 8 bits, the range for the weighted prediction syntax element is still the same as the fixed value. For example, the syntax elements luma_offset_l0[i], luma_offset_l1[i], delta_chroma_offset_l0[i][j], and delta_chroma_offset_l1[i][j] use the variable BitDepth as described above whether the flag extended_precision_processing_flag is enabled and not enabled to indicate whether the bit depth is above a threshold.
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