18157676. METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A TREE OF BLOCKS OF VIDEO SAMPLES simplified abstract (CANON KABUSHIKI KAISHA)

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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 18157676 titled 'METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A TREE OF BLOCKS OF VIDEO SAMPLES

Simplified Explanation

The patent application describes a method for decoding coding blocks of a coding tree unit in an image. Here are the key points:

  • The method involves obtaining the coding tree unit from a bitstream, which includes chroma channels and a luma channel.
  • Luma split options for the luma channel are determined based on the dimensions of a region of the coding tree unit.
  • Chroma split options for the chroma channels are also determined based on the dimensions of the region, but these options are different from the luma split options.
  • The allowable chroma split options ensure that chroma intra predicted blocks have a minimum size of 16 samples.
  • The coding blocks are then decoded by selecting one of the determined luma split options and one of the determined chroma split options using flags from the bitstream.

Potential applications of this technology:

  • Video compression and encoding systems
  • Image processing and editing software
  • Streaming services and platforms

Problems solved by this technology:

  • Efficient decoding of coding blocks in an image
  • Accurate determination of split options for luma and chroma channels
  • Ensuring minimum size requirements for chroma intra predicted blocks

Benefits of this technology:

  • Improved image and video quality
  • Reduced file sizes for storage and transmission
  • Faster decoding and processing of images and videos


Original Abstract Submitted

A method of decoding coding blocks of a coding tree unit in an image. The method comprises obtaining the coding tree unit in the image from a bitstream, the coding tree unit having chroma channels and a luma channel; and determining luma split options for the luma channel of the coding tree unit according to dimensions of a region of the coding tree unit. The method also comprises determining chroma split options for the chroma channels of the coding tree unit according to dimensions of a region of the coding tree unit, the chroma split options being different to the luma split options, the allowable chroma split options resulting in chroma intra predicted blocks with a minimum size of 16 samples; and decoding the coding blocks by determining flags from the bitstream to select one of the determined luma split options and one of the determined chroma split options.

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