20240040123. IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD simplified abstract (Sony Group Corporation)

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IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

Organization Name

Sony Group Corporation

Inventor(s)

Junichi Tanaka of Kanagawa (JP)

IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240040123 titled 'IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

Simplified Explanation

The abstract describes an image processing device that acquires quantization matrix parameters from an encoded stream. These parameters define a quantization matrix that is used to inversely quantize data decoded from the stream. The device includes an acquiring section to obtain the quantization matrix parameters, a setting section to set the quantization matrix based on the acquired parameters, and an inverse quantization section to perform the inverse quantization using the set matrix.

  • The device acquires quantization matrix parameters from an encoded stream.
  • The quantization matrix parameters are set within a parameter set different from sequence and picture parameter sets.
  • The device sets a quantization matrix based on the acquired parameters.
  • The quantization matrix is used to inversely quantize decoded data from the stream.
  • The device performs the inverse quantization using the set quantization matrix.

Potential applications of this technology:

  • Image and video compression systems
  • Video encoding and decoding devices
  • Multimedia streaming platforms

Problems solved by this technology:

  • Efficiently and accurately inversely quantizing data in an image or video stream
  • Improving the quality of decoded images or videos
  • Enhancing the compression efficiency of encoded streams

Benefits of this technology:

  • Higher image or video quality after decoding
  • Improved compression efficiency, resulting in reduced file sizes or bandwidth requirements
  • Enhanced performance of image and video processing devices


Original Abstract Submitted

an image processing device including an acquiring section configured to acquire quantization matrix parameters from an encoded stream in which the quantization matrix parameters defining a quantization matrix are set within a parameter set which is different from a sequence parameter set and a picture parameter set, a setting section configured to set, based on the quantization matrix parameters acquired by the acquiring section, a quantization matrix which is used when inversely quantizing data decoded from the encoded stream, and an inverse quantization section configured to inversely quantize the data decoded from the encoded stream using the quantization matrix set by the setting section.

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