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    • 2. 发明申请
    • Vehicle identification method and device
    • 车辆识别方法及装置
    • US20050179776A1
    • 2005-08-18
    • US11108084
    • 2005-04-18
    • Nobumasa SasakiHiroaki NatoriTamotsu AmamotoOsamu IkedaYutaka MarutaKunihiro IkedaShinji HidakaMasashi MurakumoHiroyuki Nakashima
    • Nobumasa SasakiHiroaki NatoriTamotsu AmamotoOsamu IkedaYutaka MarutaKunihiro IkedaShinji HidakaMasashi MurakumoHiroyuki Nakashima
    • G06K9/32H04N7/01H04N9/47
    • G06K9/3258G06K2209/15
    • 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.
    • 为了提高从拍摄图像的车辆的数字板识别车辆编号的车辆识别方法和装置中的背光号码牌的识别精度,通过隔行扫描法拍摄车辆的图像帧,照射 在与相互不同的光量的光组成图像帧的奇数场和偶数场中执行奇数场和偶数场的图像,并且仅在数字板的字符识别处理时才进行字符识别处理 从一场的图像提取的区域已经结束,从另一场的图像提取的牌区域被执行。 此外,并行地执行从奇数场和偶数场的图像提取的号码区域的字符识别处理,并且仅在从图像的图像提取的号牌区域的字符识别处理时进行字符识别处理的结果 作为车辆的识别结果,采用从另一场的图像提取的牌区域的一个场已经结束的故障。
    • 4. 发明授权
    • Vehicle identification method and device
    • 车辆识别方法及装置
    • US07302085B2
    • 2007-11-27
    • US11108084
    • 2005-04-18
    • Nobumasa SasakiHiroaki NatoriTamotsu AmamotoOsamu IkedaYutaka MarutaKunihiro IkedaShinji HidakaMasashi MurakumoHiroyuki Nakashima
    • Nobumasa SasakiHiroaki NatoriTamotsu AmamotoOsamu IkedaYutaka MarutaKunihiro IkedaShinji HidakaMasashi MurakumoHiroyuki Nakashima
    • G06K9/00
    • G06K9/3258G06K2209/15
    • 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.
    • 为了提高从拍摄图像的车辆的数字板识别车辆编号的车辆识别方法和装置中的背光号码牌的识别精度,通过隔行扫描法拍摄车辆的图像帧,照射 在与相互不同的光量的光组成图像帧的奇数场和偶数场中执行奇数场和偶数场的图像,并且仅在数字板的字符识别处理时才进行字符识别处理 从一场的图像提取的区域已经结束,从另一场的图像提取的牌区域被执行。 此外,并行地执行从奇数场和偶数场的图像提取的号码区域的字符识别处理,并且仅在从图像的图像提取的号牌区域的字符识别处理时进行字符识别处理的结果 作为车辆的识别结果,采用从另一场的图像提取的牌区域的一个场已经结束的故障。
    • 6. 发明授权
    • Image communication apparatus having automatic answering and recording
function
    • 具有自动应答记录功能的图像通信装置
    • US5900906A
    • 1999-05-04
    • US993955
    • 1997-12-18
    • Masashi MurakumoNaomasa NishimuraTakehiko Fujiyama
    • Masashi MurakumoNaomasa NishimuraTakehiko Fujiyama
    • H04N7/15H04L29/02H04M1/65H04N7/14H04M11/00
    • H04N7/142
    • 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.
    • 视频数据以最小传输速率或最大传输速率进行编码,并作为视频应答消息存储在存储单元中。 在视频数据已经以最小传送速率被编码并被存储的情况下,如果实际传输速率与最小传送速率一致,则在与音频应答消息多路复用时发送视频应答消息。 如果两个传输速率不同,则产生符合速率差的无效比特,无效比特,音频应答消息和视频应答消息被复用和发送。 另一方面,在视频数据已经以最大传输速率被编码并存储的情况下,当来电呼叫到达时视频应答消息被解码,这样得到的视频数据是根据实际传送速率进行编码的, 通过编码获得的视频应答消息与音频应答消息多路复用并发送。