To provide a moving picture coder that decides a group of picture GOP size and a predicted frame interval in response to the feature of a received picture.
A frame memory 3 stores an input picture in advance, an inter- two-picture change analysis section 32 extracts a change between consecutive pictures, a GOP border position decision section 33 decides a GOP border position on the basis of inter-picture change information A from the inter-two-picture change analysis section 32. Then a simple motion retrieval section 34 applies simple motion retrieval to a picture in one GOP on the basis of GOP border position information B and picture information stored in the frame memory 31 to calculate motion feature prediction information C. A prediction frame interval decision section 35 calculates predicted frame interval information D from the motion characteristic prediction information C. The inter-picture change information A, the GOP border position information B, the motion feature prediction information C and the predicted frame interval information D are given to a coding complexity prediction section, which calculates coding complexity prediction information E in each frame coding mode.
| JP3286345 | MOTION VECTOR DETECTION CIRCUIT |
| WO/2021/022686 | VIDEO COMPRESSION METHOD AND APPARATUS, AND TERMINAL DEVICE |
| JPH09238349 | IMAGE TRANSMITTER |
NAKAJIMA YASUYUKI
YANAGIHARA HIROMASA
SUGANO MASARU
