Device and methods for detecting a camera
AssigneeOptishell Technologies Ltd.
InventorsEliahu Elson, Yossef Gerard Cohen
Life of this patent
Estimating the term…
Abstract
A camera detector device for detecting the presence of an illegal camera inside a room. A camera takes multiple pictures of a room and identifies reflections in each still image. If a reflection with similar properties appears repeatedly overtime than the reflection is identified as an illegal camera positioned towards the camera detector device.
Claims20
A camera detector device for detecting the presence of an illegal camera inside a room, the device comprising:
- a light source for illuminating a room;
- a light detector for capturing multiple images of said room;
- a blob database for storing blobs representing reflections identified in said captured images, each blob being identified via one or more properties;
- and
- a processor for analyzing said multiple images of the room taken over a period of time in order to identify blobs representing reflections in said images, and signaling a blob as an illegal camera if said blob appears in said multiple images over a predetermined amount of time with similar blob properties within predefined threshold values for each blob property.
A method for detecting the presence of one or more active video cameras positioned towards a screen by capturing electromagnetic radiation emanating from said one or more video cameras, the method comprising:
- illuminating a room with infrared and/or visible light signal;
- having multi length signal illuminated on the audience and the space in front the screen;
- having an infrared signal emitted from the audience and any object in the said space;
- having multi length signal emitted from the audience and any object in the said space;
- passing said infrared signal through an optical filter;
- detecting said infrared signal by a detector;
- and
- translating the signal received by the detector to a signal representing the estimated number of one or more active video cameras positioned towards to the screen.
An overlay system in a movie theater adapted for receiving a signal from a camera detector that an illegal camera has been detected in the movie theater and overlaying a text warning message on the movie screen of said movie theater.
Dependencies are inferred from the claim text.