18239644. CHROMA QUANTIZATION IN VIDEO CODING simplified abstract (APPLE INC.)
Contents
CHROMA QUANTIZATION IN VIDEO CODING
Organization Name
Inventor(s)
Alexandros Tourapis of Los Gatos CA (US)
CHROMA QUANTIZATION IN VIDEO CODING - A simplified explanation of the abstract
This abstract first appeared for US patent application 18239644 titled 'CHROMA QUANTIZATION IN VIDEO CODING
Simplified Explanation
The patent application describes a method for signaling additional chroma QP offset values that are specific to quantization groups in video coding.
- Each quantization group can explicitly specify its own set of chroma QP offset values.
- Alternatively, a table of possible sets of chroma QP offset values can be specified in the picture header, and each quantization group can use an index to select an entry from the table for determining its own set of chroma QP offset values.
- These quantization group specific chroma QP offset values are used to determine the chroma QP values for blocks within the quantization group, in addition to the chroma QP offset values already specified for higher levels of the video coding hierarchy.
Potential Applications
- Video coding and compression algorithms
- Video streaming services
- Video editing and post-production tools
Problems Solved
- Efficient encoding and compression of video data
- Improved video quality and visual experience
- Flexibility in adjusting chroma QP values for different quantization groups
Benefits
- Enhanced video coding efficiency
- Improved video quality and visual experience
- Increased flexibility in adjusting chroma QP values for different parts of a video
Original Abstract Submitted
A method of signaling additional chroma QP offset values that are specific to quantization groups is provided, in which each quantization group explicitly specifies its own set of chroma QP offset values. Alternatively, a table of possible sets of chroma QP offset values is specified in the header area of the picture, and each quantization group uses an index to select an entry from the table for determining its own set of chroma QP offset values. The quantization group specific chroma QP offset values are then used to determine the chroma QP values for blocks within the quantization group in addition to chroma QP offset values already specified for higher levels of the video coding hierarchy.
