Multimodal sensors & digital interfaces . Credits. The original Multimodal Project developed by and credit for: Zhigang Zhu and Weihong Li (Integration of Laser Vibrometry with Infrared Video for Multimedia Surveillance Display). Outline. Multimodal System Overview Multimedia Sensors
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Figure 1. A person sitting in dark room can be clearly seen in the IR image. The temperature at Sp1 on the face is 33.1ºC
Figure 2. Two IR images before and after a person standing at about 200 feet. The reading of the temperature at Sp1 changes from 11C to 27C.
S is the light source
f is frequency
P is the moving with velocity v and reflects the light
O is the receiver (f + fD)
Resultant frequency shift
For vibrometers: S=O ("backscatter") 1= - 2, therefore,
Two images of a person at a distance of about 200 feet, captured by changing the zoom factors of the PTZ camera.