Patent ID: 7920758
Filing Date: 2011-04-05
Classification: G06K,G06T,H04N

Abstract:
1. A measurement apparatus for measuring video frames comprising: a crude alignment module receiving a test video frame and a reference video frame and performing crude alignment of the frames; a representative line module receiving the test video frame and the reference video frame following crude alignment and providing a representative test line and a representative reference line; a Local Pearson's Cross-Correlation Coefficient (LPCCC) module creating an LPCCC image based upon the representative test and reference lines; a Hough Transform module performing a Hough Transform on the LPCCC image; a pixel intensity module to identify the pixel with maximum intensity from the Hough Transform of the LPCCC to provide a refined alignment measurement result; and an aggregation module to aggregate crude alignment measurements and refined alignment measurements and store them for further analysis.