18680520. 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 18680520 titled 'METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A TREE OF BLOCKS OF VIDEO SAMPLES
The patent application describes a system and method for decoding a transform block for a color channel of an image frame from a video bitstream.
- Determining the chroma format of the image frame, which includes chroma channels that are subsampled relative to the luma channel.
- Determining the coefficient group size of the transform block, which is the largest area of the transform block with up to a certain number of samples.
- Decoding the transform block using coefficient groups of the determined size from the video bitstream.
Potential Applications: - Video compression technology - Image processing systems - Multimedia applications
Problems Solved: - Efficient decoding of color channels in video frames - Improved compression and transmission of video data
Benefits: - Enhanced video quality - Reduced bandwidth requirements - Faster processing of video streams
Commercial Applications: - Video streaming services - Video editing software - Broadcasting technology
Questions about the Technology: 1. How does this technology improve video compression efficiency? 2. What impact does the chroma format have on the decoding process?
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 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
