Patent №
US 6,766,038
Granted
2004-07-20
Filed 2000
Owner
NIPPON TELEGRAPH AND TELEPHONE CORP.
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
09577887
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.
AI classification
Ownership
NIPPON TELEGRAPH AND TELEPHONE CORP.
assignment · 108290385
Assignors
SAKUMA, SATOSHI, TAKAHASHI, YASUKO, SHIO, AKIO, OHTSUKA, SAKUICHI
On an employer assignment, the assignors are typically the inventors.