Figure 1
From: Validating an infrared thermal switch as a novel access technology
Visual representation of the infrared thermal switch video processing algorithm. (a) Input grayscale thermal video frame, (b) Result of face localization, (c) Result of intensity analysis (warm area mask), (d) Intersection of warm area mask and motion mask, (e) Open mouth detected and marked on the video. Note that for ease of visualization, images (c)-(e) only show the smaller region demarcated by the dashed box in (b).