Continuing with my previous post about “Not upto the mark” technical specification for human body screening system in India, I thought I would try to put up specifications which are minimum technical requirement for such systems. It may not be complete and totally exhaustive list, but I think this could be good enough to start with.
- It should be dual camera system ie It should have both Thermal Camera and Visual Camera. Why ? Because : Thermal camera is to measure human body ( face skin) temperature measurement and the visual camera for face detection. Face Detection and Face Recognition are two different thing altogether and should not be confused with one another. Automatic face detection helps identify the person who has high body temperature.
- Thermal Camera resolution must be 384X288 Pixels or higher, Why ? While Thermal Cameras with both 80X80 pixels and 160X120 Pixels may be able to detect high body temperature in a human face which is of approx 8-14CM width and 10-17CM in height ( just a general figure) with suitable length, but 384X288 Pixels will out form and offer more flexibility than 160X120 Pixels / 80X80 Pixels ones. Higher resolution Thermal camera require at least 1GBPS Ethernet which may be expensive.