Patent ID: 9479762
Filing Date: 2016-10-25
CPC Classification: H04N

Claim Text:
1. A stereoscopic video temporal frame offset measurement system comprising: a signature generator having as an input a left image sequence and a right image sequence representing a stereo video signal, and providing as an output a signature curve for each of the left and right image sequences; a microprocessor system configured to cross-correlate the signature curves for the left and right image sequences to determine a temporal frame offset between the left and right image sequences; at least one multiply-accumulate circuit configured to: at least one differentiator configured to provide sequential cross-correlation coefficients within each of the left and right image sequences by dividing the sequential cross-correlation coefficients by the number of frames to produce a normalized first-past difference between the sequential cross-correlation coefficients for each of the left and right image sequences as the respective signature curves for the left and right image sequences for input to the microprocessor system.