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    • 2. 发明专利
    • Encoder, encoding method, camera apparatus and network connection device
    • 编码器,编码方法,摄像机和网络连接装置
    • JP2014022968A
    • 2014-02-03
    • JP2012160438
    • 2012-07-19
    • Panasonic Corpパナソニック株式会社
    • TANAKA TETSUOIKEDA ATSUSHIYASUDA MARISATO MASAYANAKANO TOMOHITO
    • H04N19/00H04N5/225H04N101/00
    • PROBLEM TO BE SOLVED: To provide an encoder capable of performing an appropriate encoding processing depending on a camera in/out of turning operation.SOLUTION: An encoder 1 includes: a PTZ operation determination section 5 that determines whether a camera 2 is in PTZ operation; an encoding processing section 6 that performs encoding processing on an input image using an encoding parameter; and a learning table 7 storing a second encoding parameter which is previously used for encoding an input image during a period from a termination to a start of the PTZ operation of the camera 2 while associating the same with a camera control value used when the input image the same is taken. The encoding processing section 6 performs an encoding processing on the input image: by using the first encoding parameter for reducing the code occurrence amount when the camera 2 is in the PTZ operation; by using the second encoding parameter associated with a camera control value closest to the camera control value immediately after the termination of the PTZ operation while referring to the learning table 7 when the camera 2 has terminated the PTZ operation; and by using an encoding parameter according to the input image during a period from the termination of the PTZ operation to the start of the next PTZ operation.
    • 要解决的问题:提供一种能够根据摄像机进/出转向操作执行适当编码处理的编码器。解码器:编码器1包括:PTZ操作判定部分5,其确定相机2是否处于PTZ操作 ; 使用编码参数对输入图像进行编码处理的编码处理部6; 以及学习表7,其存储在从相机2的PTZ操作的终止到开始的时段期间预先用于编码输入图像的第二编码参数,同时将其与当输入图像使用的相机控制值相关联时 也是一样。 编码处理部分6对输入图像执行编码处理:通过使用第一编码参数来减少相机2处于PTZ操作中的代码发生量; 通过在摄像机2终止PTZ操作时参照学习表7,通过使用与PTZ操作结束之后立即接近摄像机控制值的摄像机控制值相关联的第二编码参数; 并且在从PTZ操作的终止到下一个PTZ操作的开始的期间,通过使用根据输入图像的编码参数。