CMOS image sensor with optimal video sampling scheme

Temperature Compensation Scheme for Logarithmic CMOS Image Sensor

ABSTRACT In this paper, we present a temperature compensation method for logarithmic CMOS image sensors. As Bandgap technique, the compensation circuit generates VPTAT1 and VPTAT2 voltages to compensate temperature variation of the sensor output signal voltage (Out-AC-Signal) which we call VCTAT1 and output reference voltage (VRef−ph) which we call VCTAT2. The proposed method is divided into th...

CMOS Image Sensors with Video Compression

Neural Monitoring With CMOS Image Sensors

Implantable image sensors have several biomedical applications due to their miniature size, light weight, and low power consumption achieved through sub-micron standard CMOS (Complementary Metal Oxide Semiconductor) technologies. The main applications are in specific cell labeling, neural activity detection, and biomedical imaging. In this paper the recent research studies on implantable CMOS i...

CMOS image sensor with pseudorandom pixel Placement

The picture element (pixel) in conventional image sensors are placed in the form of a lattice for ease of implementation. Lattice placement of pixels intrinsically has directional singularity on the clarity of image representation, and the clarity is significantly dependent on the directions of the objects in the image. For example, horizontal lines are perfectly represented, while slanted line...

A 1/1.7-inch 20Mpixel Back-Illuminated Stacked CMOS Image Sensor with Parallel Multiple Sampling

We have developed a 1/1.7-inch 20Mpixel back-illuminated stacked CMOS image sensor with parallel multiple sampling plus the two simultaneous output streams. This sensor has achieved the RMS random noise of 1.3ewith the parallel multiple sampling and the two simultaneous output streams of 4Mpixel for a movie mode and 16Mpixel for a still mode with a 2.3Gb/s/lane high-speed interface. The stacked...