Invention Grant
- Patent Title: Automatic device operation and object tracking based on learning of smooth predictors
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Application No.: US14881010Application Date: 2015-10-12
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Publication No.: US10200618B2Publication Date: 2019-02-05
- Inventor: George Peter Carr , Jianhui Chen , Yisong Yue
- Applicant: Disney Enterprises, Inc.
- Applicant Address: US CA Burbank
- Assignee: Disney Enterprises, Inc.
- Current Assignee: Disney Enterprises, Inc.
- Current Assignee Address: US CA Burbank
- Agency: Patterson + Sheridan, LLP
- Main IPC: H04N7/18
- IPC: H04N7/18 ; H04N5/232 ; G06T7/277 ; H04N5/247

Abstract:
The disclosure provides an approach for predicting trajectories for real-time capture of video and object tracking, while adhering to smoothness constraints so that predictions are not excessively jittery. In one embodiment, a temporally consistent search and learn (TC-SEARN) algorithm is applied to train a regressor for camera planning. A automatic broadcasting application first receives video input captured by a human-operated camera and another video input captured by a stationary camera with a wide field of view. The automatic broadcasting application extracts feature vectors and pan-tilt-zoom states from the stationary camera input and human-operated camera input, respectively. The automatic broadcasting application further applies the TC-SEARN algorithm to learn a sequential regressor for predicting camera trajectories, based on the extracted feature vectors and pan-tilt-zoom states. The TC-SEARN algorithm itself is able to learn the regressor using a loss function which enables decision trees to reason about spatiotemporal smoothness via an autoregressive function.
Public/Granted literature
- US20160277646A1 AUTOMATIC DEVICE OPERATION AND OBJECT TRACKING BASED ON LEARNING OF SMOOTH PREDICTORS Public/Granted day:2016-09-22
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