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Image processing ICs present sharp images at low power

Posted: 23 May 2007 ?? ?Print Version ?Bookmark and Share

Keywords:image-processing LSI chips? offer sharp images? low power consumption? Foveon X3 sensors?

Fujitsu Microelectronics Asia Pte Ltd (FMAL) has released the latest addition to its Milbeaut line of advanced image processing LSI chips for digital cameras, the MB91680A-T. The new chip boasts to offer sharp, high-quality images to be processed in cameras in real-time with low power consumption.

The Milbeaut line of advanced image processing LSI chips combines functions necessary for image processing in digital cameras, such as image compression and noise reduction, in a single chip. The product line is widely implemented in digital cameras and cellphones.

Aside from being compatible with conventional single layer Bayer pattern image sensors, the MB91680A-T model is also compatible with Foveon Inc.'s X3 CMOS sensor and 3CCD technology found in high performance video cameras. This enables sharp, high-quality image processing in digital single-lens reflex cameras and other high image quality digital cameras in real-time and with low power consumption. These features, combined with the functions found in previous models, deliver the highest performance standards in the industry, claims FMAL.

Moreover, the validated TRUE image processing system LSI chip jointly developed with Sigma Corp. is used for interconnect to the Foveon X3 CMOS sensor.

Key features
The MB91680A-T chip, developed in cooperation with Fujitsu VLSI Ltd and Fujitsu Micro Solutions Ltd, boasts a host of functionalities.

Compared to conventional single-layer Bayer pattern image sensors, Foveon X3 sensors have unique color and readout characteristics that pose different challenges for camera system developers. The new Fujitsu processor enables seamless connection to the Foveon sensor through the use of sophisticated image processing functions, including various noise reduction methods and new multi-axis color transformation technology embedded into the circuitry.

The result is low noise and high color reproductivity, enabling high-resolution images that take full advantage of the Foveon X3 sensor's features.

The chip also uses the latest image-processing algorithm for high performance digital cameras. It enables detailed, high resolution images and controls reflected noise and color noise that occur when CCDs and other imaging devices reach maximum resolution. It also provides a color conversion function that allows to the chip to convert colors into other desired colors

Fujitsu's FR series high-performance 32bit RISC MCUs are embedded in the Milbeaut series. The MB91680A-T model employs the FR80, allowing it to execute internal data transfers at approximately four times the efficiency of earlier models, as well as high-speed data transfer of large volumes of data.

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