18247985. CHROMA FROM LUMA PREDICTION FOR VIDEO CODING simplified abstract (QUALCOMM Incorporated)
Contents
CHROMA FROM LUMA PREDICTION FOR VIDEO CODING
Organization Name
Inventor(s)
Dhruv Aggarwal of San Jose CA (US)
Anand Singh of Carlsbad CA (US)
Akarsh Ningoji Rao Kolekar of San Diego CA (US)
CHROMA FROM LUMA PREDICTION FOR VIDEO CODING - A simplified explanation of the abstract
This abstract first appeared for US patent application 18247985 titled 'CHROMA FROM LUMA PREDICTION FOR VIDEO CODING
Simplified Explanation
The abstract describes a video coding technique where a chroma block of video data is coded based on reconstructed luma samples. The video coder stores the sum of reconstructed luma sample values for each sub-block of the luma block in a buffer, as well as the average of the reconstructed luma sample values in another buffer. This information is then used to perform chroma from luma prediction and reconstruct a chroma block corresponding to the luma block.
- The video coder codes a chroma block of video data based on reconstructed luma samples.
- During the prediction process for a luma block, the video coder stores the sum of reconstructed luma sample values for each sub-block in a buffer.
- The video coder also stores the average of the reconstructed luma sample values in another buffer during the prediction process for the luma block.
- The stored sums and averages are used to perform chroma from luma prediction and reconstruct a chroma block corresponding to the luma block.
Potential Applications
- Video coding and compression algorithms
- Video streaming and broadcasting technologies
- Video editing and post-production tools
Problems Solved
- Efficient coding of chroma blocks in video data
- Improving video compression and transmission efficiency
- Enhancing video quality and reducing artifacts
Benefits
- Higher video compression ratios without significant loss in quality
- Improved video streaming and broadcasting performance
- Reduced bandwidth requirements for video transmission
- Enhanced video editing capabilities with accurate chroma reconstruction
Original Abstract Submitted
A video coder may be configured to code a chroma block of video data as a function of reconstructed luma samples. The video coder may store, during the prediction process for a luma block, a sum of the reconstructed luma sample values for each sub-block of the luma block in a first buffer, and store, during the prediction process for the luma block, an average of the reconstructed luma sample values in a second buffer. The video coder may perform chroma from luma prediction to reconstruct a chroma block of the video data corresponding to the luma block using the sums and the average.
