| 摘要 |
A method for finding a temporal face sequence (412) includes, with a physical computing system (100), analyzing frames within a shot within a video, applying a face detection function to the frames, and in response to detecting a face within one of the frames, tracing a person associated with the face both backwards and forwards through frames within the shot. A temporal face sequence (412) is then defined as a sequence of frames that include frames within the shot spanning when the person is shown. |
| 主权项 |
1. A method for finding a temporal face sequence, the method comprising:
applying, by a computing system, a face detection function to a shot within a video, wherein the shot comprises a series of frames; determining, by the computing system, a face detection instant, wherein the face detection instant is an instant the face detection function detects a face of a person within one frame of the frames; determining, by the computer system, a time the person enters the shot by backward tracking the person through the frames from the face detection instant; determining, by the computer system, a time the person leaves the shot by forward tracking the person through the frames from the face detection instant; determining, by the computing system, a time range from the time the person enters the shot to the time the person leaves the shot; and identifying a face temporal sequence for the person, wherein the face temporal sequence comprises the determined time range. |
