17642093. METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A BLOCK OF VIDEO SAMPLES simplified abstract (CANON KABUSHIKI KAISHA)

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

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Christopher James Rosewarne of Concord (AU)

IFTEKHAR Ahmed of Lane Cove North (AU)

METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A BLOCK OF VIDEO SAMPLES - A simplified explanation of the abstract

This abstract first appeared for US patent application 17642093 titled 'METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING A BLOCK OF VIDEO SAMPLES

Simplified Explanation

The abstract describes a method for decoding a coding unit of a coding tree from an image frame in a video bitstream, involving primary and secondary color channels.

  • Determining the coding unit based on decoded split flags of the coding tree unit.
  • Decoding indices to select kernels for the primary and secondary color channels.
  • Selecting kernels based on the indices.
  • Decoding the coding unit by applying the selected kernels to residual coefficients of the color channels.

Potential Applications

This technology can be applied in video encoding and decoding systems, particularly in the processing of color channels for improved image quality.

Problems Solved

1. Efficient decoding of coding units with multiple color channels. 2. Enhancing the accuracy of color representation in video frames.

Benefits

1. Improved image quality in video frames. 2. Enhanced efficiency in decoding color channels. 3. Potential for better compression ratios in video encoding.


Original Abstract Submitted

A method of decoding a coding unit of a coding tree from a coding tree unit of an image frame from a video bitstream, the coding unit having a primary colour channel and at least one secondary colour channel. The method comprises determining a coding unit including the primary colour channel and the at least one secondary colour channel according to decoded split flags of the coding tree unit; decoding a first index to select a kernel for the primary colour channel and a second index to select a kernel for the at least one secondary colour channel; selecting a first kernel according to the first index and a second kernel according to the second index; and decoding the coding unit by applying the first kernel to residual coefficients of the primary colour channel and the second kernel to residual coefficients of the at least one secondary colour channel.

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