This paper describes a CMOS vision sensor which is inspired by biological visual systems. Each pixel independently and in continuous time quantizes local relative intensity changes to generate spike events. These events appear at the output of the sensor as an asynchronous stream of digital pixel addresses. These address-events signify scene reflectance change and have sub-millisecond timing pr...

This paper presents the latest implementation of the SIMD Current-mode Analogue Matrix Processor architecture. The SCAMP-3 vision chip has been fabricated in a 0.35μm CMOS technology and comprises a 128×128 general-purpose programmable processor-perpixel array. The architecture of the chip is overviewed and implementation issues are considered. The circuit design of the analogue register is pre...

Focal Plane Cellular Visual Microprocessor chip development reached the necessary technology level that it can be applied in industrial vision systems. These TeraOPS speed, internally analog visual chips can capture and process thousands of medium resolution images in a second. The price for this extraordinary high speed is that their hardware-software environment and programming method is far ...

A high-speed camera that combines a customized rotating mirror camera frame with charge coupled device ~CCD! image detectors and is practically fully operated by computer control was constructed. High sensitivity CCDs are used so that image intensifiers, which would degrade image quality, are not necessary. Customized electronics and instruments were used to improve the flexibility and control ...

Spatial and temporal characteristics of a 128x128 zero-twist nematic liquid-crystal spatial light modulator are investigated for wave-front generation at a wavelength of 632.8 nm. The modulator is found to have the capability of producing at least eight phase levels between 0 and 2pi , and the rate of arbitrary phase modulation is limited to approximately 4.5 Hz. Wave-front generation of the fi...

In this paper, we discuss the development of very sensitive very long wavelength infrared (VWIR) GaAs/AIXGal.XAs quantum well infrared photodetectors (QWIPS), fabrication of random reflectors for efficient light coupling, and the demonstration of a V WIR 128 x 128 focal plane array imaging camera. Excellent imagery, with a noise equivalent differential temperature (NEAT) of 30 mK has been achie...