18510167. IMAGE DECODING DEVICE, METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM simplified abstract (CANON KABUSHIKI KAISHA)
IMAGE DECODING DEVICE, METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM
Organization Name
Inventor(s)
IMAGE DECODING DEVICE, METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM - A simplified explanation of the abstract
This abstract first appeared for US patent application 18510167 titled 'IMAGE DECODING DEVICE, METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM
Simplified Explanation
The image coding device described in the patent application improves coding efficiency of residual coefficients of two chroma components while suppressing degradation of subjective image quality.
- Quantizing unit performs orthogonal transform on image components and quantizes transform coefficients.
- Coding unit codes residual coefficients obtained from quantizing unit.
- Coding unit quantizes transform coefficients of two chroma components using predetermined quantization matrix.
- Coding unit codes residual coefficients obtained from quantizing.
Potential Applications
This technology can be applied in video streaming services, digital television broadcasting, video conferencing systems, and image compression software.
Problems Solved
1. Degradation of subjective image quality in image coding. 2. Inefficient coding of residual coefficients of chroma components.
Benefits
1. Improved coding efficiency. 2. Suppressed degradation of subjective image quality. 3. Enhanced image compression capabilities.
Original Abstract Submitted
An image coding device that suppresses degradation of subjective image quality while improving the coding efficiency of residual coefficients of two chroma components. The image coding device that codes image data constituted by one luma component and two chroma components, comprises quantizing unit that performs an orthogonal transform on each of components of a block obtained by dividing an image to be coded, and quantizes transform coefficients of each of the components obtained from the orthogonal transform; and coding unit that codes residual coefficients obtained by the quantizing unit, wherein when coding the transform coefficients of the orthogonal transform of the two chroma components in an integrated manner, the coding unit quantizes transform coefficients of the orthogonal transform obtained from the integration using a predetermined quantization matrix, and codes residual coefficients obtained from the quantizing.
