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13 March 1996 Enhancement of videotaped car license plate characters using laser videodisc recorder
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Proceedings Volume 2666, Image and Video Processing IV; (1996) https://doi.org/10.1117/12.234752
Event: Electronic Imaging: Science and Technology, 1996, San Jose, CA, United States
Abstract
We developed a new video image processing system that consists of a laser videodisc recorder (LVR) which is controlled by a personal computer through an RS232C interface. Using this system, we can handle video images without degradation of images due to the damage of videotapes and it becomes easy to conduct multiframe image processing. We wrote a computer controlled image processing procedure for video images. We performed experiments using video images recorded by a normal 8 mm video at night. As a result, it is recognized that our new system and procedures are effective for improving the signal to noise ratio and reducing the line to line jitters. Processed results for car license plate images that are recorded on videotapes are shown. We also show examples of actual cases in which characters on the license plate can be readable after processing.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Naoki Saitoh, Kenro Kuroki, and Kenji Kurosawa "Enhancement of videotaped car license plate characters using laser videodisc recorder", Proc. SPIE 2666, Image and Video Processing IV, (13 March 1996); https://doi.org/10.1117/12.234752
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