Title:
圧縮動画像データの画像挿入装置
Document Type and Number:
Japanese Patent JP4708680
Kind Code:
B2
Abstract:
Input MPEG compressed data is input into a partial decoder and a logo insertion controller. A block DCT coefficients (a) output from the partial decoder is divided into a logo insertion region (c) and a non-logo insertion region (d) in a logo insertion region separator. Logo data (e) supplied from a logo information supply section is combined into the logo insertion region (c) with an arbitrary mixing ratio in a logo information insert section. In a logo region partial re-encoder, intra-frame coding of an image insertion region is executed when a starting frame for inserting an image is an intra-coded frame or a predictive coded frame, and, when the starting frame is a bidirectionally predictive-coded frame, inter-frame coding of the image insertion region is executed, and intra encoding of the image insertion region is executed in a frame to which the starting frame for inserting the image can refer.
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Inventors:
Yasuyuki Nakajima
Application Number:
JP2003091243A
Publication Date:
June 22, 2011
Filing Date:
March 28, 2003
Export Citation:
Assignee:
KDDI CORPORATION
International Classes:
H03M7/36; H04N5/278; H04N7/12; H04N19/102; H04N19/105; H04N19/107; H04N19/124; H04N19/134; H04N19/137; H04N19/139; H04N19/159; H04N19/40; H04N19/44; H04N19/48; H04N19/50; H04N19/625; H04N19/91
Domestic Patent References:
| JP2000244929A |
Foreign References:
| WO2001052547A1 |
Attorney, Agent or Firm:
Kaori Tanaka
Kiyotaka Sakamoto
Sanji Tanabe
Kiyotaka Sakamoto
Sanji Tanabe