Measuring Digital Video Transmission Channel Gain, Level Offset, Active Video Shift, and Video Delay
Stephen Wolf · 1996
Presents a computerized search method for determining the gain, level offset, active video shift, and video delay of a digital video transmission channel. The method uses digitized input and output NTSC video fields that have been time tagged with SMPTE time code. The primary applications of the method are (1) to produce estimates of channel gain, level offset, and active video shift when data from ANSI T1.801.03-1996 calibration test patterns are not available, and (2) to provide a dynamic method to measure these quantities in conjunction with video delay