摘要 |
Techniques are disclosed for detecting a field-of-view change for a video feed. These techniques differentiate between a new or changed scene and a temporary variation in the scene to accurately detect field-of-view changes for the video feed. A field-of-view change is detected when the position of a camera providing the video feed changes, the video feed is switched to a different camera, the video feed is disconnected, or the camera providing the video feed is obscured. A false-positive field-of-view change is not detected when the scene changes due to a sudden variation in illumination, obstruction of a portion of the camera providing the video feed, blurred images due to an out-of-focus camera, or a transition between bright and dark light when the video feed transitions between color and near infrared capture modes. |
申请人 |
BEHAVIORAL RECOGNITION SYSTEMS, INC.;COBB, WESLEY KENNETH;URECH, DENNIS GENE;BLYTHE, BOBBY ERNEST;GOTTUMUKKAL, RAJKIRAN KUMAR;SAITWAL, KISHOR ADINATH;YANG, TAO;RISINGER, LON WILLIAM |
发明人 |
COBB, WESLEY KENNETH;URECH, DENNIS GENE;BLYTHE, BOBBY ERNEST;GOTTUMUKKAL, RAJKIRAN KUMAR;SAITWAL, KISHOR ADINATH;YANG, TAO;RISINGER, LON WILLIAM |