18680564. METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A TREE OF BLOCKS OF VIDEO SAMPLES simplified abstract (CANON KABUSHIKI KAISHA)
Contents
METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A TREE OF BLOCKS OF VIDEO SAMPLES
Organization Name
Inventor(s)
Christopher James Rosewarne of Concord West (AU)
METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A TREE OF BLOCKS OF VIDEO SAMPLES - A simplified explanation of the abstract
This abstract first appeared for US patent application 18680564 titled 'METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A TREE OF BLOCKS OF VIDEO SAMPLES
The abstract describes a system and method for decoding a transform block for a color channel of an image frame from a video bitstream. The method involves determining the chroma format of the image frame, determining the coefficient group size of the transform block, and decoding the transform block using coefficient groups of the determined size from the video bitstream.
- The method determines the chroma format of the image frame, which includes chroma channels that are subsampled relative to the luma channel.
- The coefficient group size of the transform block is determined as the largest area of the transform block, up to 16 samples, based solely on the transform block size.
- The decoding process utilizes coefficient groups of the determined size from the video bitstream.
Potential Applications: - Video encoding and decoding systems - Image processing applications - Multimedia streaming services
Problems Solved: - Efficient decoding of color channels in video frames - Optimized processing of transform blocks in video bitstreams
Benefits: - Improved video quality - Enhanced compression efficiency - Reduced computational complexity
Commercial Applications: Title: Advanced Video Decoding System for Enhanced Image Processing This technology can be utilized in video streaming services, video editing software, and multimedia devices to improve the quality and efficiency of color channel decoding processes.
Questions about the technology: 1. How does the method determine the coefficient group size of the transform block? 2. What are the potential benefits of using this system in multimedia streaming services?
Original Abstract Submitted
A system and method of decoding a transform block for a colour channel of an image frame from a video bitstream. The method comprises determining a chroma format of the image frame, the chroma format having chroma channels of the image frame being subsampled relative to a luma channel of the image frame; determining a coefficient group size of the transform block, the coefficient group size being a largest area of the transform block of up to 16 samples, the coefficient group size being determined based only on the transform block size and independent of both (i) a colour plane of the transform block and (ii) colour plane subsampling due to the determined chroma format; and decoding the transform block using coefficient groups of the determined size from the video bitstream
