发明名称 |
Method of and apparatus for compressing and encoding digitized moving picture signals |
摘要 |
A frame memory supplies picture signals from an input terminal to a motion vector detecting circuit after delaying them by one frame period. The motion vector detecting circuit detects a motion vector based on picture signals of the present frame from the input terminal and the delayed picture signals of the previous frame which are supplied from the frame memory. A motion compensation circuit corrects picture signals inputted thereto using the detected motion vector. An inter-frame coding circuit obtains inter-frame coded signals from the picture signals of the present frame, which were subjected to the motion compensation, and those of the previous frame decoded by a decoding circuit. The coded signals are outputted from an output terminal as a coded bit stream via a mixer along with the coded motion vector.
|
申请公布号 |
US6266448(B1) |
申请公布日期 |
2001.07.24 |
申请号 |
US19980213423 |
申请日期 |
1998.12.17 |
申请人 |
OKI ELECTRIC INDUSTRY CO., LTD. |
发明人 |
YAMAUCHI TATSUO |
分类号 |
H04N11/04;G06T9/00;H04N7/26;H04N7/30;H04N7/32;H04N7/36;H04N7/50;(IPC1-7):G06K9/36 |
主分类号 |
H04N11/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|