Patent
Smoke and flame image conversion method
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TLDR
In this paper, a multielement photoconverter generates an electrical signal of image frames in three spectral bands, each of which is simultaneously passed through a Gauss filter, multiplied by a correction coefficient, and the obtained signals are normalized to a full span, inter-frame differences of the consecutively processed blue and red frames are accumulated and compared to the preset thresholds.Abstract:
FIELD: image processing means.SUBSTANCE: invention relates to conversion of object images observed by television systems, in particular smoke and flame images. Multielement photoconverter generates an electrical signal of image frames in three spectral bands, each of which is simultaneously passed through a Gauss filter, multiplied by a correction coefficient, then, to obtain a smoke signal from the blue frame signal, subtracting filtered red and green frames signals, to obtain flame signals from the red frame signal, blue and green frame signals are subtracted, the obtained signals are normalized to a full span, inter-frame differences of the consecutively processed blue and red frames are accumulated and compared to the preset thresholds.EFFECT: reduced effect of dynamically changing background, simultaneous generation of smoke and flame signals.1 cl, 1 dwgread more
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