专利名称：Smoke detection发明人：Henry Joseph Grech-Cini申请号：US09838795申请日：20010420
公开号：US20020024446A1公开日：20020228
专利附图：
摘要：A smoke detection system comprising video camera monitoring means, videoframe comparison means, signal processing means, and alarm generating meansdependant on an output from the signal processing means; the signal processing meansbeing arranged to analyse successive frames acquired by the video camera monitoring
means and to compare the intensity and/or colour of individual pixels or group of pixelsso as to consider the overall characteristics and inter-relationships of these pixels so asto detect the presence of smoke characterised in that the signal processing meansanalyses a plurality of different types of change in the said characteristics and inter-relationships.
申请人：VSD LIMITED
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