Human body detection technology by thermoelectric infrared imaging sensor

This paper describes a newly developed thermoelectric infrared imaging sensor, having a 48 x 32 element thermoelectric focal plane array (FPA), and two experimental vehicle systems. One is a blind spot pedestrian warning system that employs four infrared imaging sensors. This system helps alert the driver to the presence of a pedestrian in a blind spot by detecting the infrared radiation emitted from the person's body. The system can also prevent the vehicle from moving in the direction of the pedestrian. The other is a rear view camera system with an infrared detection function. This system consists of a visible camera and infrared sensors, and it helps alert the driver to the presence of a pedestrian in a rear blind spot. The FPA is basically fabricated with a conventional IC process and has the potential for low cost. For the covering abstract see ITRD E825082.

[1]  Howard R. Beratan,et al.  Uncooled thermal imaging at Texas Instruments , 1992, Optics & Photonics.

[2]  P. Kruse,et al.  Integrated uncooled infrared detector imaging arrays , 1992, Technical Digest IEEE Solid-State Sensor and Actuator Workshop.

[3]  Nobukazu Teranishi,et al.  Uncooled infrared focal plane array having 128 x 128 thermopile detector elements , 1994, Optics & Photonics.

[4]  Masaki Hirota,et al.  120×90 element thermopile array fabricated with CMOS technology , 2003, SPIE Optics + Photonics.

[5]  Masaki Hirota,et al.  Infrared sensor with precisely patterned Au black absorption layer , 1998, Optics & Photonics.