Presentation video control system
First Claim
1. An apparatus for video monitoring of a presentation, comprising:
- a) a first presence sensor that signals to a controller a first preset trigger which is in an active state when the first presence sensor detects that a person is located in a first preset zone, and inactive otherwise, wherein the first preset zone is a spatially fixed region;
b) a reference camera, which captures reference video signal within a reference field of vision and transmits the reference video signal to the controller;
c) a tracking camera that executes motion commands received from the controller; and
d) the controller, which(i) receives the state of the first preset trigger from the first presence sensor,(ii) receives the reference video signal from the reference camera,(iii) contains motion detection logic that detects motion in the reference video signal,(iv) receives a user-specified viewing configuration that includes a portion of the first preset zone, and excludes a portion, outside the first preset zone, of the reference field of vision,(v) has a first preset capture state, wherein the controller sends at least one command to the tracking camera, thereby causing the tracking camera to suspend tracking and to capture video according to the user-specified viewing configuration,(vi) has a motion capture state, wherein the controller sends at least one command to the tracking camera, thereby causing the tracking camera to capture video from a zone that the motion detection logic indicates is proximate to detected motion, and(vii) contains capture state selection logic that causes the controller to select among capture states.
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Accused Products
Abstract
The present invention is a camera control system designed for video capture of a presentation made in a lecture hall or similar place. The system combines preset views triggered by presence-sensing devices at fixed locations with views tracking the motion of the presenter elsewhere. A tracking camera displays a preset view when the presenter steps on a switch mat or enters into the region of detection of some other presence sensor such as an infrared sensor. At other times, the tracking camera is guided by motion detection logic that uses a wide field of vision provided by a reference camera. The reference camera, the tracking camera, and the presence-sensing devices are integrated by a controller. Various parameters can be configured by a user through a graphical user interface on a computer, manual controls on the box housing the controller, or a hand-held remote control device.
67 Citations
23 Claims
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1. An apparatus for video monitoring of a presentation, comprising:
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a) a first presence sensor that signals to a controller a first preset trigger which is in an active state when the first presence sensor detects that a person is located in a first preset zone, and inactive otherwise, wherein the first preset zone is a spatially fixed region; b) a reference camera, which captures reference video signal within a reference field of vision and transmits the reference video signal to the controller; c) a tracking camera that executes motion commands received from the controller; and d) the controller, which (i) receives the state of the first preset trigger from the first presence sensor, (ii) receives the reference video signal from the reference camera, (iii) contains motion detection logic that detects motion in the reference video signal, (iv) receives a user-specified viewing configuration that includes a portion of the first preset zone, and excludes a portion, outside the first preset zone, of the reference field of vision, (v) has a first preset capture state, wherein the controller sends at least one command to the tracking camera, thereby causing the tracking camera to suspend tracking and to capture video according to the user-specified viewing configuration, (vi) has a motion capture state, wherein the controller sends at least one command to the tracking camera, thereby causing the tracking camera to capture video from a zone that the motion detection logic indicates is proximate to detected motion, and (vii) contains capture state selection logic that causes the controller to select among capture states. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for video monitoring of a presentation, comprising:
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a) signaling, by a first presence sensor to a controller, a first preset trigger that is in an active state when the first presence sensor detects that a person is located in a first preset zone, and inactive otherwise, wherein the first preset zone is a fixed region of a room; b) capturing, by a reference camera, reference video signal within a reference field of vision and transmitting the reference video signal to the controller; c) receiving by the controller the state of the first preset trigger from the first presence sensor; d) receiving by the controller the reference video signal from the reference camera; e) detecting, by motion detection logic within the controller, motion in the reference video signal; f) receiving a user-specified viewing configuration that includes a portion of the first preset zone and excludes a portion, outside the first preset zone, of the reference field of vision; g) selecting by the controller using capture state selection logic from among a set of capture states, including a first preset capture state and a motion capture state; h) entering the first preset capture state upon its selection by the controller, wherein the controller sends at least one command to the tracking camera, thereby causing the tracking camera to suspend tracking and to capture video according to the user-specified viewing configuration; and i) entering the motion capture state upon its selection by the controller, wherein the controller sends at least one command to the tracking camera, thereby causing the tracking camera to capture video from a zone that the motion detection logic indicates is proximate to detected motion. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification