Patent ID: 8340178

Claim:
A moving image coding apparatus comprising: a time/space-division filtering section for hierarchizing a moving image signal; and a signal-coding processor for coding said hierarchized signals, wherein: said time/space-division filtering section includes: a time-directional filtering section for filtering the moving image signal in a time direction, thereby to generate a time low-band signal, a time high-band signal, and motion information signifying motion between said image signals; a reduced-image generator for generating by employing said time low-band signal and said time high-band signal a reduced-image signal to which the moving image signal corresponding to said time high-band signal was reduced; and a high-band signal generator for generating a time high-band/space high-band signal that is equivalent to a space high-band component for said time high-band signal; and said signal-coding processor codes said time low-band signal, said reduced decoded-image signal, said time high-band/space high-band signal and said motion information after said time low-band signal or said reduced-image signal is processed by said time/space-division filtering section, thereby allowing the moving image signal to be hierarchized.