18420612. IMAGE ENCODING APPARATUS, IMAGE ENCODING METHOD, IMAGE DECODING APPARATUS, IMAGE DECODING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM simplified abstract (CANON KABUSHIKI KAISHA)

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IMAGE ENCODING APPARATUS, IMAGE ENCODING METHOD, IMAGE DECODING APPARATUS, IMAGE DECODING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Masato Shima of Tokyo (JP)

IMAGE ENCODING APPARATUS, IMAGE ENCODING METHOD, IMAGE DECODING APPARATUS, IMAGE DECODING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM - A simplified explanation of the abstract

This abstract first appeared for US patent application 18420612 titled 'IMAGE ENCODING APPARATUS, IMAGE ENCODING METHOD, IMAGE DECODING APPARATUS, IMAGE DECODING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

Simplified Explanation

The image encoding apparatus described in the patent application involves generating a second quantization matrix from a first quantization matrix and using it to quantize transformation coefficients in sub-blocks of an image.

  • Generation unit creates a second quantization matrix from a first quantization matrix.
  • Quantization unit quantizes transformation coefficients in sub-blocks using the second quantization matrix.

Potential Applications

This technology can be applied in:

  • Image and video compression algorithms
  • Digital watermarking techniques
  • Image encryption methods

Problems Solved

This technology addresses issues such as:

  • Efficient image compression without significant loss of quality
  • Secure transmission of images over networks
  • Protection of intellectual property in digital media

Benefits

The benefits of this technology include:

  • Improved image compression ratios
  • Enhanced security for transmitted images
  • Protection against unauthorized access to image data

Potential Commercial Applications

This technology has potential commercial applications in:

  • Media streaming services
  • Cloud storage providers
  • Digital content distribution platforms

Possible Prior Art

One possible prior art for this technology could be the use of different quantization matrices in image and video compression standards like JPEG and H.264.

Unanswered Questions

How does this technology compare to existing image encoding methods in terms of compression efficiency?

This article does not provide a direct comparison with existing image encoding methods to evaluate compression efficiency.

What impact could this technology have on the speed of image encoding and decoding processes?

The article does not address the potential impact of this technology on the speed of image encoding and decoding processes.


Original Abstract Submitted

An image encoding apparatus for encoding an image comprises a generation unit configured to generate, from a first quantization matrix having a size of N×N (N is a positive integer), a second quantization matrix having a size of P×Q (P and Q are positive integers which satisfy P<N<Q, and the size of P×Q indicates a size of P in a horizontal direction and a size of Q in a vertical direction), and a quantization unit configured to quantize transformation coefficients in a sub-block having a size corresponding to the size of P×Q using the second quantization matrix.