Canon kabushiki kaisha (20240163427). METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A TREE OF BLOCKS OF VIDEO SAMPLES simplified abstract

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METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A TREE OF BLOCKS OF VIDEO SAMPLES

Organization Name

canon kabushiki kaisha

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 20240163427 titled 'METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A TREE OF BLOCKS OF VIDEO SAMPLES

Simplified Explanation

The method described in the abstract is for decoding coding blocks of a coding tree unit for an image frame from a bitstream. It involves determining the chroma format of the image frame, determining the size of a chroma coding block based on the chroma format, and decoding the coding blocks using intra prediction for the chroma coding block and inter prediction for at least one of the corresponding luma coding blocks.

  • Determining chroma format of the image frame
  • Determining size of chroma coding block based on chroma format
  • Decoding coding blocks using intra prediction for chroma coding block and inter prediction for luma coding blocks

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      1. Potential Applications

- Video compression technology - Image processing algorithms

      1. Problems Solved

- Efficient decoding of coding blocks in image frames - Improved image quality in compressed formats

      1. Benefits

- Higher compression ratios - Reduced storage requirements - Faster data transmission speeds

      1. Potential Commercial Applications
        1. Optimizing Video Streaming Services for Bandwidth Efficiency

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      1. Possible Prior Art

One possible prior art in this field is the H.264 video coding standard, which also utilizes intra and inter prediction techniques for efficient video compression.

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      1. Unanswered Questions
        1. How does this method compare to existing video compression techniques in terms of compression efficiency?

This article does not provide a direct comparison with existing video compression techniques, leaving a gap in understanding the potential advantages of this method over others.

        1. What impact does the chroma format have on the overall image quality and compression performance?

The article mentions determining the chroma format but does not delve into the specific implications of different chroma formats on image quality and compression efficiency.


Original Abstract Submitted

a method of decoding coding blocks of a coding tree unit for an image frame, from a 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; and determining, based on the determined chroma format, a size of a chroma coding block of one of the chroma channels of the coding tree unit, wherein the chroma coding block is collocated with a plurality of corresponding luma blocks. the method comprises determining the chroma coding block is encoded using intra prediction if the determined size of the chroma block is a predetermined minimum chroma block size; and decoding the coding blocks of the coding tree using intra prediction for the chroma coding block and inter prediction for at least one of the plurality of corresponding luma coding blocks.

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