MONITORING CAMERA APPARATUS

PROBLEM TO BE SOLVED: To provide a monitoring camera apparatus capable of accurately and inexpensively detecting flames on a photographed image. SOLUTION: In the monitoring camera device, an output of a line A1 and an output of a line A2 in a solid state image pickup element 2 provided with a comple...

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Bibliographic Details
Main Author HASHIMOTO TETSUO
Format Patent
LanguageEnglish
Published 14.07.2005
Edition7
Subjects
ALARM SYSTEMS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ORDER TELEGRAPHS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:PROBLEM TO BE SOLVED: To provide a monitoring camera apparatus capable of accurately and inexpensively detecting flames on a photographed image. SOLUTION: In the monitoring camera device, an output of a line A1 and an output of a line A2 in a solid state image pickup element 2 provided with a complementary filter are properly multiplied by correction coefficients C1, C2 so that the balance of outputs from the element 2 is corrected. When doubt of a fire is judged in a normal photographing state (a state that the correction coefficients C1, C2 are fixed by previously determined constants), the correction coefficients (C1, C2) of the normal state are changed to correction coefficients (C1', C2') optimized to flame reaction, a color difference signal in an axis changed state is generated and a fire is judged on the basis of the color difference signal. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20030431161