Patent Number: 6,307,973

Title: Image signal coding system

Abstract: An adaptive blocking coding system selects an effective blocking of aninput image signal to be encoded in accordance with the correlationbetween fields, even if motion is detected between the fields. Theblocking patterns include an individual field blocking, a non-interlaceblocking, a split blocking and an inverted split blocking. Further, thecoding system searches for motion from both odd and even fields of a framefor producing a motion compensated prediction signal in order to providehigh-efficient coding.

Inventors: Nishikawa; Hirofumi (Kanagawa-ken, JP), Yamada; Yoshihisa (Kanagawa-ken, JP), Murakami; Tokumichi (Kanagawa-ken, JP), Asai; Kohtaro (Kanagawa-ken, JP)


International Classification:

Expiration Date: 10/23/2013