Wide Dynamic Range Low Light Level Cmos Image Sensor

Cameras have problems with underexposed and overexposed images because they can only accurately record the middle area of light between very dark and very bright.

Wide dynamic range low light level cmos image sensor. A unit sends out a short laser pulse that illuminates. The ongoing development of low light level lll cmos image sensor cis technology is rapidly advancing and evolving. Wide dynamic range cmos image sensor. Khana new wide dynamic range cmos pulse frequency modulation digital image sensor with in pixel variable reference voltage proceedings of 51st midwest symposium on circuits and systems knoxville usa 10 13 august 2008 pp.

The system works as follows. Current attempts to reduce the leakage current rely on costly process modifications. Oxford researchers have developed a new circuit design to allow cmos image sensing at very low light intensities. The new design also offers a wide dynamic range and is equally effective in responding to very bright light.

Cameras with wdr technology have advanced sensors that can produce a wider range of lighting allowing them to record in a higher light depth. A wide dynamic range dr pixel level cmos image sensor with self reset technique has been fabricated using a 0 18 mum six metal cmos technology and tested to verify simultaneous increase of both. A wide dynamic range cmos image sensor is proposed exhibiting a linear response at a low illumination level and a logarithmic response at a high illumination level.