A chip architecture that integrates an optical sensor and a pixel level processing element based on binary stochastic arithmetic is proposed. The optical sensor is formed by an array of fully connected pixels, and each pixel contains a sensing element and a Pulse Frequency Modulator (PFM) converting the incident light to bit streams of identical pulses. The processing element is based on binary...

This paper presents a 1 Megapixel CMOS image sensor which applies a dual charge transfer (dual-TX) scheme in the pixel to achieve a high dynamic range. The prototype sensor uses analog outputs and operates at maximum 20fps in rolling shutter. The sensor achieves 3.3etemporal noise and 99Kefull well capacity with 10m pixel pitch.

Conclusion We developed PFM-ADCs with a novel event-driven CDS technique. Measurement results demonstrated inpixel noise reduction effects of below 1% and a wide dynamic range of 120 dB with an excellent linearity. The ADCs are promising for the pixel-parallel 3-D integrated image sensor with ultimate performances. References [1] R. Funatsu et al., “133Mpixel 60fps CMOS Image Sensor with 32-Col...

This study is to construct a non-contact pulse automatic positioning measurement system for Traditional Chinese Medicine (TCM) using optical triangulation measurements. The system consists of a linear laser, a CMOS image sensor and image analysis software. The linear laser is projected on the pulse beat location on the wrists; the CMOS image sensor records the process and the software analyzes ...