20240031606. KARHUNEN LOEVE TRANSFORM FOR VIDEO CODING simplified abstract (InterDigital CE Patent Holdings, SAS)

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KARHUNEN LOEVE TRANSFORM FOR VIDEO CODING

Organization Name

InterDigital CE Patent Holdings, SAS

Inventor(s)

Karam Naser of Cesson-Sevigne (FR)

Fabrice Le Leannec of BETTON (FR)

Franck Galpin of Cesson-Sevigne (FR)

Thierry Dumas of Cesson-Sevigne (FR)

KARHUNEN LOEVE TRANSFORM FOR VIDEO CODING - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240031606 titled 'KARHUNEN LOEVE TRANSFORM FOR VIDEO CODING

Simplified Explanation

The abstract of the patent application describes an implementation where KLT (Karhunen-Loève Transform) matrices are derived during the encoding or decoding process. These matrices can be derived for either the primary transforming stage or the secondary transforming stage, or both. Since the matrices can be derived at both the encoder and decoder sides, they do not need to be signaled in the bitstream. To derive the KLT transform matrix for a current block to be encoded or decoded, a template for the current block is defined and used to search for multiple blocks with similar templates in reconstructed regions. These multiple blocks are then used to train the KLT transform matrix.

  • KLT transform matrices are derived during the encoding or decoding process.
  • Matrices can be derived for the primary transforming stage or the secondary transforming stage, or both.
  • Matrices do not need to be signaled in the bitstream.
  • Templates are used to search for multiple blocks with similar templates in reconstructed regions.
  • Multiple blocks are used to train the KLT transform matrix.

Potential applications of this technology:

  • Video compression and encoding
  • Image compression and encoding
  • Data compression in various industries

Problems solved by this technology:

  • Efficient encoding and decoding of video, image, or data
  • Reduction in storage space required for compressed files
  • Improved transmission of compressed files over networks

Benefits of this technology:

  • Higher compression ratios leading to smaller file sizes
  • Faster encoding and decoding processes
  • Improved quality of compressed files with reduced artifacts


Original Abstract Submitted

in one implementation, klt transform matrices are derived during the encoding or decoding process. in particular, the klt transform matrices can be derived for either the primary transforming stage or the secondary transforming stage, or both. because the klt transform matrices can be derived at both the encoder and decoder sides, the klt transform matrices do not need to be signaled in the bitstream. to derive the klt transform matrix for a current block to be encoded or decoded, a template for the current block is defined, and is used to search in reconstructed regions multiple blocks with templates similar to the current template. those multiple blocks are used to train the klt transform matrix.

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