Patent ID: 8531529
Filing Date: 2013-09-10
Classification: H04N

Abstract:
1. A dead pixel compensating apparatus comprising: a pattern generation unit generating a programmable test pattern having data related to one or more dead pixels; a dead pixel compensation unit performing a dead pixel compensation algorithm on the test pattern to output a compensation data; and a determination unit comparing the test pattern and the compensation data to determine whether or not the dead pixel compensation algorithm has an error, and a register array storing the test pattern received from the pattern generation unit and providing the received test pattern to the dead pixel compensation unit, wherein the determination unit comprises: an estimation value calculator calculating a dead pixel compensation estimation value with respect to the test pattern; a comparator comparing the dead pixel compensation estimation value with the compensation data from the dead pixel compensation unit; and a compensation determination unit determining whether or not the dead pixel compensation algorithm has an error based on comparison results from the comparator.