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Image sensors enable video capturing in low light conditions

15 Jul 2014

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VGA CMOS image sensor

Toshiba Electronics Europe (TEE) developed the TCM3211PB, a 0.25in VGA CMOS area image sensor for security cameras, surveillance cameras, and drive recorder applications.

The new sensor adopts large 5.6µm pixels, improving low light sensitivity. Even in moonlight, where lighting levels reach just 0.2lux, bright images can be captured.

The sensor also incorporates a single frame HDR (High Dynamic Range) function that realises high dynamic range of 108dB. The HDR function is based on an algorithm developed by Toshiba that simultaneously applies different exposure times to each line of an image and incorporates them into a single image. False colouration, where sensors produce colours not true to the imaged objects, is reduced and the sensor faithfully reproduces dark and bright areas in high contrast images.

The TCM3211PB's high frame rate of 60fps at full resolution enables smooth and seamless

capture of video images in a 4:3 aspect ratio.

Available in a PBGA (plastic ball grid array) package, the system contributes to the downsizing of camera surveillance systems.




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