18680597. 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 18680597 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, with the size being up to 16 samples and 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 compression technologies
Problems Solved: - Efficient decoding of transform blocks in video bitstreams - Handling chroma format and coefficient group size variations
Benefits: - Improved video compression efficiency - Enhanced image quality in multimedia applications - Streamlined decoding process for color channels
Commercial Applications: Title: Advanced Video Decoding System for Multimedia Applications This technology can be utilized in video streaming services, video editing software, and multimedia playback devices to enhance video quality and compression efficiency.
Questions about the technology: 1. How does this method improve video compression efficiency? - This method optimizes the decoding process by determining the chroma format and coefficient group size, leading to more efficient compression of video data. 2. What are the potential applications of this technology beyond video decoding? - This technology can also be applied in image processing applications and multimedia compression technologies for improved performance and quality.
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
