Patent ID: 8421848

Claim:
A stereoscopic video viewing limiter for use in a video viewing apparatus that permits stereoscopic video viewing by alternate display of a right-eye image and a left-eye image with parallax, comprising: a factor extraction section for extracting factor information related to a plurality of factors affecting a viewer of a stereoscopic video image from a video signal representing the stereoscopic video image; a coefficient conversion section for generating effect coefficients representing a degree of effect on the viewer from the factor information extracted by the factor extraction section; an integration section for generating integrated values by integrating the effect coefficients over a period of time during which the viewer watches the stereoscopic video image; a comparison section for comparing the integrated values with respective thresholds predetermined according to the viewer's tolerances for each of the plurality of factors and generating effect signals indicating that the integrated values have exceeded the thresholds; and a limitation determiner for generating viewing limitation signals from the effect signals according to the viewer's tolerances, the viewing limitation signals indicating a limitation of viewing to a two-dimensional video image and a cessation of viewing of the stereoscopic video image.