Fujitsu Corporation

Masashi Murakumo

Hiroaki Natori

Osamu Ikeda

Hiroyuki Nakashima

Shinji Hidaka

Tamotsu Amamoto

Nobumasa Sasaki

Yutaka Maruta

Kunihiro Ikeda

Takehiko Fujiyama

Naomasa Nishimura

In order to improve an identification accuracy of a backlit number plate in a vehicle identification method and device which recognize a vehicle number from a number plate of a vehicle whose image is taken, an image frame of a vehicle is taken by an interlace method, irradiation is performed in an odd field and an even field composing the image frame with light of light quantities different from each other, images of the odd field and the even field are captured, and character recognition processing, only when character recognition processing of a number plate area extracted from an image of one field has ended in failure, of a number plate area extracted from an image of the other field is performed. Also, character recognition processings of number plate areas extracted from the images of the odd field and the even field respectively are performed in parallel, and a result of character recognition processing, only when character recognition processing of a number plate area extracted from an image of one field has ended in failure, of a number plate area extracted from an image of the other field, is adopted as an identification result of the vehicle.

Vehicle identification method and device

In an irradiation control device which extends a longevity of an LED, a feedback control is performed to an irradiating portion by an output signal of a photo device provided in relation to the irradiating portion, thereby making brightness fixed. Alternatively, by performing image processing to an image taken by a camera, brightness on a screen is calculated, so that a feedback control is performed to the irradiating portion to make the brightness fixed. Alternatively, based on a recognition rate upon character recognition within the image taken by the camera, a feedback control is performed to the irradiating portion to make the brightness fixed.

Irradiation control device

Video data is coded at either a minimum transfer rate or maximum transfer rate and stored in a storage unit as a video reply message. In a case where the video data has been coded at the minimum transfer rate and stored, the video reply message is transmitted upon being multiplexed with an audio reply message if the actual transfer rate agrees with the minimum transfer rate. If the two transfer rates are different, invalid bits conforming to the difference between the rates are generated and the invalid bits, the audio reply message and the video reply message are multiplexed and transmitted. In a case where the video data has been coded at the maximum transfer rate and stored, on the other hand, the video reply message is decoded when an incoming call arrives, the video data thus obtained is coded based upon the actual transfer rate, and the video reply message obtained by coding is multiplexed with the audio reply message and transmitted.

Image communication apparatus having automatic answering and recording

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Yokohama, Japan

Masashi Murakumo