Patent ID: 7801927
Filing Date: 2010-09-21
Classification: G11B,H04N

Abstract:
1. A video metadata correction apparatus, comprising: a first video metadata storage to store azimuth angles as sensor information synchronized with video; a section identification unit to identify a section including incorrect azimuth angle based on azimuth angle difference calculated from said azimuth angles stored in said first video metadata storage and a horizontal distance extracted from said video, wherein said horizontal distance is a feature value corresponding to change of said video with respect to time and follows change of said azimuth angle difference with respect to time while said azimuth angles are correctly measured; and a corrector to correct said azimuth angle in the identified section based on said horizontal distance or a second video feature value, which correlates with information concerning said azimuth angle and is extracted from said video, and store the corrected azimuth angle into a second video metadata storage.