Title:
【発明の名称】予測符号化オブジェクトベース画像信号を予測符号化ブロックベース画像信号にトランスコーディングするトランスコーディング方法およびトランスコーダ
Document Type and Number:
Japanese Patent JP2003533101
Kind Code:
A
Abstract:
A predictively-coded object-based picture signal representing a group of pictures is transcoded into a predictively-coded block-based picture signal representing the group of pictures by extracting a coded scene descriptor and coded object descriptors from the predictively-coded object-based picture signal. The coded scene descriptor is decoded to generate a scene descriptor. The coded object descriptors are partially decoded to generate respective partially-decoded object descriptors. The decoding extracts coding information that describes the predictive coding of the coded object descriptors. In response to the scene descriptor, a frame of a partially-encoded block-based picture signal representing one of the pictures as a current picture is generated from the partially-decoded object descriptors. Finally, a frame of the predictively-coded block-based picture signal representing the current picture is generated by predictively coding the partially-coded block-based picture signal to a uniform coding state in response to the coding information.
Inventors:
Apostropoulos John Gee
We Susie Jee
We Susie Jee
Application Number:
JP2001581542A
Publication Date:
November 05, 2003
Filing Date:
March 23, 2001
Export Citation:
Assignee:
HEWLETT-PACKARD COMPANY
International Classes:
H04N7/32; G06T9/00; H04N7/26; (IPC1-7): H04N7/32
Attorney, Agent or Firm:
Tsukio Okada (2 outside)