Patent ID: 8558875

Claim:
A video signal processing device in a stereoscopic image display device for displaying a stereoscopic image with a right-eye video signal and a left-eye video signal that have a parallax and that have different encoding processing blocks from each other, the video signal processing device comprising: an encoding noise detection unit for detecting encoding noises that are generated from at least one of the right-eye video signal and the left-eye video signal by encoding processing, and outputting a corrected encoding noise detection signal based on a parallax from right-eye video included in the right-eye video signal and a left-eye video included in the left-eye video signal; and an encoding noise removing unit for: when the encoding noises are detected as being generated from both the right-eye video signal and the left-eye video signal, reducing the encoding noises from both the right-eye video signal and the left-eye video signal performing a filtering process using the encoding noise detection signal; and when the encoding noises are detected as being generated from only one of the right-eye video signal and the left-eye video signal, reducing, based on the parallax, the encoding noises by replacing data of a noise generating pixel in the one of the right-eye video signal and the left-eye video signal from which the encoding noises are detected with corresponding pixel data, in the other of the right-eye video signal and the left-eye video signal from which the encoding noises are not detected, that is shifted by the parallax and contains no noise, wherein the encoding noise detecting unit extracts signal components between a plurality of pixels with a high pass filter of a spatial direction, and, when there is no correlation between the signal components of the plurality of pixels, the encoding noise detection unit detects a plurality of pixels with no correlation as a block noise, a block boundary being between the plurality of pixels.