US 6,983,014 B1
Image encoding device and image decoding device
Shinichi Kuroda, Tokyo (Japan); Shunichi Sekiguchi, Tokyo (Japan); Kohtaro Asai, Tokyo (Japan); Hirofumi Nishikawa, Tokyo (Japan); Yoshimi Isu, Tokyo (Japan); and Yuri Hasegawa, Tokyo (Japan)
Assigned to Mitsubishi Denki Kabushiki Kaisha, Tokyo (Japan)
Filed on Apr. 06, 2000, as Appl. No. 9/545,172.
Application 09/545172 is a continuation of application No. PCT/JP98/00941, filed on Mar. 06, 1998.
Claims priority of application No. PCT/JP97/03785 (WO), filed on Oct. 20, 1997.
Int. Cl. H04N 7/12 (2006.01)
U.S. Cl. 375—240.02 19 Claims
OG exemplary drawing
 
1. An image decoding device which decodes an encoded bit stream formed by encoding images for each object, comprising:
display speed information decoding means for decoding a header information area of the encoded bit stream to restore display speed information to indicate a number of VOPs displayed per unit time, the display speed information being included as a codeword in the header information area for a layer that is above a VOP layer and comprises a plurality of VOPs, wherein for the layer above the VOP layer, the header information area is separate from the data area; and
control means for controlling the reconstruction of said encoded images encoded for each object, based on said object display speed information restored by decoding.