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

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

An image coding apparatus comprising, a generating unit configured to generate a plurality of pieces of sub-band data from RAW data, a quantization parameter generating unit configured to divide each piece of sub-band data into equal numbers of segments, and generate a first quantization parameter s...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: Mochizuki, Shigeki
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:An image coding apparatus comprising, a generating unit configured to generate a plurality of pieces of sub-band data from RAW data, a quantization parameter generating unit configured to divide each piece of sub-band data into equal numbers of segments, and generate a first quantization parameter set individually for each segment and common for the plurality of pieces of sub-band data in the same segment, a quantizing unit configured to quantize the segments of the plurality of pieces of sub-band data on the basis of the quantization parameter generated by the quantization parameter generating unit, and a coding unit configured to code a quantization result, obtained from the quantizing, for each piece of sub-band data.