Patent ID: 7916171
Filing Date: 2011-03-29
Classification: G06F,G11B,H04N

Abstract:
1. A classification method for broadcasted sport videos in which the sport video is a soccer video that is captured by a camera, comprising: determining whether motion activity in a shot captured by the camera exceeds a first predetermined threshold value; setting an indicator that the shot is a candidate for a close-up shot in response to determining that the motion activity in the shot exceeds the first predetermined threshold value; determining a most frequent color in the shot in response to determining that the motion activity in the shot does not exceed the first predetermined threshold value; setting an indicator that the shot is a candidate for the close-up shot in response to determining that a number of pixels corresponding to the most frequent color in the shot is smaller than a second predetermined threshold value; determining whether energy indicating a characteristic of applause detected by an audio information analyzing portion is larger than a third predetermined threshold value; determining that the shot is a shot or scene of a goal or shoot in response to determining that the detected energy indicating the characteristic of the applause is larger than the third predetermined threshold value; determining whether energy indicating a characteristic of a whistle is larger than a fourth predetermined threshold value in response to determining that the detected energy indicating the characteristic of the applause is not larger than the third predetermined threshold value; determining that the shot is a shot of a free kick or offside in response to determining that the energy indicating the characteristic of the whistle is larger than the fourth predetermined threshold value; determining whether motion activity between adjoining two shots is larger than a fifth predetermined threshold value in response to determining that the energy indicating the characteristic of the whistle is not larger than the fourth predetermined threshold value; determining the shot to be in a corner kick scene in response to determining that the difference in motion activity between the adjoining two shots is larger than the fifth predetermined threshold value; determining whether the indicator indicates that the shot is the candidate for the close-up shot in response to determining that the difference in motion activity between the adjoining two shots is not larger than the fifth predetermined threshold value; determining that the shot is the close up shot in response to determining that the indicator indicates that the shot is the candidate for a close-up shot; and determining that the shot is a shot of a play scene in response to determining that the indicator indicates that the shot is not the candidate for a close-up shot.