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
    • 10. 发明授权
    • Device and method for coding video information
    • 视频信息编码的装置和方法
    • US06826229B2
    • 2004-11-30
    • US09961305
    • 2001-09-25
    • Yuji KawashimaAtsushi Asano
    • Yuji KawashimaAtsushi Asano
    • H04B166
    • H04N19/18H04N19/115H04N19/126H04N19/149H04N19/15H04N19/172H04N19/176H04N19/61
    • A video encoder includes a signal processing unit for producing block information such as quantization scale and quantized DCT coefficients and a coding unit for variable-length coding the quantized block information. The amount of generated coded data per unit time (Evop) is estimated from the count (Ncoef(i)) of quantized DCT coefficients contained in block information prior to coding, the amount of coded data (C(y)), and the average codeword length (L(y)) of coded block information. A quantization scale control unit determines the most suitable quantization scale factor on the basis of the target amount of generated coded data (Tvop) and the amount of generated coded data (Evop) and sends it to a quantization unit in the signal processing unit.
    • 视频编码器包括用于产生诸如量化尺度和量化DCT系数的块信息的信号处理单元和用于对量化块信息进行可变长度编码的编码单元。 根据包含在编码前的块信息,编码数据量(C(y))和平均值(C(y))中的量化DCT系数的计数(Ncoef(i)),估计每单位时间(Evop) 编码块信息的码字长度(L(y))。 量化尺度控制单元基于生成的编码数据(Tvop)的目标量和生成的编码数据量(Evop)来确定最合适的量化比例因子,并将其发送到信号处理单元中的量化单元。