Patent ID: 9693069
Date: 2017-06-27
CPC Classifications: H04N

Claim:
1. An image coding apparatus, comprising: block count determination circuitry configured to determine the number of intra macroblocks to be included in an individual frame; position determination circuitry configured to determine spatial positions of the intra macroblocks in the individual frame so that the intra macroblocks are to be arranged at random spatial positions in the individual frame; and coding circuitry configured to wherein: one frame consists of M macroblocks and each of the macroblocks is intra-coded once in N frames, the block count determination circuitry is configured to allocate S intra macroblocks to each frame when M is an integral multiple of N and it is assumed that the quotient of M divided by N is S, and the block count determination circuitry is configured to allocate S intra macroblocks to each of (N−R) frames and allocates (S+1) intra macroblocks to each of R frames when M is not an integral multiple of N and it is assumed that M divided by N gives S as a quotient, leaving R as a remainder.