发明名称 |
Apparatus and method for speed measurement of vehicles with an image processing system |
摘要 |
<p>The method for measuring speed is performed by dividing the time sequence image data A into long and narrow frames (step 401). Next, the framed images and the time sequence image data B produced by the line scan camera B are correlated to obtain a moving time (step 402). Next, a moving time of each framed image and a corresponding moving distance are obtained to compute a moving speed (step 403). Next, scale of a specific shape pattern and the like is corrected using the moving speed obtained to match the scales in the two image sequences A and B to obtain a similarity degree (step 404). Next, a threshold value is applied to the similarity degree to recognize the specific shape pattern, thereby recognizing that the images are produced by a moving vehicle. <IMAGE></p> |
申请公布号 |
EP1056064(A1) |
申请公布日期 |
2000.11.29 |
申请号 |
EP20000401442 |
申请日期 |
2000.05.24 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
SAKUMA, SATOSHI;TAKAHASHI, YASUKO;SHIO, AKIO;OHTSUKA, SAKUICHI |
分类号 |
G01P3/80;G06T7/20;G08G1/04;(IPC1-7):G08G1/04 |
主分类号 |
G01P3/80 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|