IMAGE PROCESSING DEVICES AND IMAGE PROCESSING METHODS

IMAGE PROCESSING DEVICES AND IMAGE PROCESSING METHODS

[Problem] An improved system for efficiently generating or signaling quantized matrices is provided.[Solution] An image processing device is provided. The image processing device includes a decoding unit that decodes scaling list data to generate a first quantizing matrix of a first size, a generati...

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1. Verfasser: TSUKUBA, Takeshi
Format: Patent
Sprache:eng ; fre ; ger
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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description [Problem] An improved system for efficiently generating or signaling quantized matrices is provided.[Solution] An image processing device is provided. The image processing device includes a decoding unit that decodes scaling list data to generate a first quantizing matrix of a first size, a generating unit that generates a second quantizing matrix for a transform block of a second size to which zeroing of a high-frequency component is applied, by referring to only a partial matrix of the first quantizing matrix generated by the decoding unit, and an inverse quantizing unit that inversely quantizes a quantized transform coefficient of the transform block of the second size, using the second quantizing matrix generated by the generating unit.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title IMAGE PROCESSING DEVICES AND IMAGE PROCESSING METHODS
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