Patent ID: 6873654
Filing Date: 2005-03-29
Classification: H04N

Abstract:
1. A method for processing digital video signals for live video applications, the method comprising: providing video data comprising a plurality of frames; identifying a first frame and a second frame in the frame sequences; processing information of the first frame and information of the second frame to determine a quantization step value for the second frame; and adjusting a transmission bit rate for the second frame in response to the quantization step value, wherein the processing the information of the first frame and the information of the second frame comprises: calculating a sigmaSAD value for the second frame; calculating a divisor value for the second frame; and calculating the quantization step value for the second frame; and wherein the calculating a divisor value comprises: selecting a series of integers that is indexed from 0 through n−1; selecting a complexity integer; calculating the quotient modulo n of the complexity integer; and setting the divisor value equal to an integer whose index in the series equals the quotient; wherein n is an integer larger than 1.