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TV encoder LSI has built-in image correction

Posted: 19 Feb 2008 ?? ?Print Version ?Bookmark and Share

Keywords:TV encoder LSI? image correction? camera?


ROHM has introduced a TV encoder LSI featuring a hardware image correctionAdaptive Image Enhancerthat offers high precision, discrete correction of images in real time.

The built-in image correction makes the BU6520KV suitable for surveillance cameras, home security systems, automobile drive recorders and vehicle mounted cameras, where visibility is often poor due to changing ambient conditions, extreme backlighting or darkness.

In addition, the BU6520KV rapidly analyzes input images, divides the images into areas using unique algorithms, extracts the optimum brightness and color correction parameters for each area, and conducts real-time, high-speed image correction. The brightness of dark and bright areas are adjusted proportionally, resulting in visibility similar to the human eye.

All required settings such as NTSC/PAL values, sampling frequency, and gamma values, can be stored in and read from an external EEPROM, enabling operation without a MCU. Additional features include support for composite and CCIR601/656 component outputs, WLAN compatibility and access of image correction data via external EEPROM, enabling replacement in existing systems without the need for hardware or software modification.

Samples of the BU6520KV in VQFP48C package are available for $14 each with mass production scheduled this month.

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