IMAGE ENCODING DEVICE, IMAGE ENCODING METHOD, IMAGE DECODING DEVICE, AND IMAGE DECODING METHOD

摘要

PROBLEM TO BE SOLVED: To facilitate and simplify decode processing when a encoder side applies only intra coding to all VOPs included in a VOL or GOV of an object.

SOLUTION: A coded bit stream 30 generated on a coding side comprises a VO header 30a, a VOL header 30b, a GOV header 30c, a VOP header 30d and VOP data 30e, and the VOL header 30b multiplexes an object intra-coded indicator signal 7' indicating whether all the VOP data 30e contained in a VOL or GOV are intra coded or not. This enables a decoding side to recognize whether all the VOP data 30e contained in the VOL or GOV in the coded bit stream 30 are intra coded or not by only analyzing the object intra-coded indicator signal 7'. This can facilitate such processes as frame skip control or random access of the VOPs.

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