会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明公开
    • 동영상 부호화 데이터율 제어를 위한 실시간 장면 전환검출 방법, 이를 이용한 영상통화 품질 향상 방법, 및영상통화 시스템
    • 用于视频编码器的速率控制的实时场景变化检测方法,用于增强使用该视频编码器的视频信号的数量的方法以及用于视频信号的系统
    • KR1020090037288A
    • 2009-04-15
    • KR1020080075307
    • 2008-07-31
    • 삼성전자주식회사
    • 이창현송관웅박영오김용석주영훈박태성권재훈정도영박재성김성기김용규오윤제
    • H04N19/142H04N19/87
    • H04N19/142H04N7/141H04N19/132H04N19/146
    • A real-time scene change detection method for controlling a moving picture encoding data rate, a method for improving video call quality through the same and a video call system are provided to assign bit resources of an image which is not focused to a next input image, thereby improving image quality. A frequency converter(104) performs discrete cosine transform. A quantizer(106) quantizes a block of a spectrum data coefficient outputted in the frequency converter. The quantizer applies predetermined scalar quantization to spectrum data by a step size. The quantizer receives variable information of quantization parameter per a frame from a QP adjusting unit(34). An entropy coder(108) compresses specific additional information of a corresponding macro block and output from of the quantizer. Moving picture information compressed in an entropy coder is buffered in an encoder buffer(110). A buffer level pointer of the encoder buffer is provided to an encoder QP controller(30).
    • 一种用于控制运动图像编码数据速率的实时场景变化检测方法,提供一种用于改善视频通话质量的方法和视频呼叫系统,以将未聚焦的图像的位资源分配给下一个输入图像 ,从而提高图像质量。 变频器(104)执行离散余弦变换。 量化器(106)量化在变频器中输出的频谱数据系数的块。 量化器通过步长对频谱数据应用预定的标量量化。 量化器从QP调整单元(34)接收每帧的量化参数的可变信息。 熵编码器(108)压缩对应宏块的特定附加信息并从量化器输出。 在熵编码器中压缩的运动图像信息被缓冲在编码器缓冲器(110)中。 编码器缓冲器的缓冲器电平指针被提供给编码器QP控制器(30)。