NEC Electronics has introduced a new application-specific standard product (ASSP) to address the dramatic difference between the image resolution of older devices and the high resolution of today's display systems. Based on NEC's single-frame super-resolution technology, the ASSP (part number uPD9245GJ) reduces the blurring that occurs when low-resolution images are expanded and displayed in high resolution. It sharpens out-of-focus images, smoothes rough edges, and refines contours by analyzing and processing information contained in one frame of data in real time.
The technology is also available as an intellectual property (IP) core that can be embedded into ASICs or other ASSP products, such as NEC Electronics' Enhanced Multimedia Architecture (EMMA) ASSP for digital AV devices.
Previous image-resolution technologies used a multiframe technique to process image data, which required large-capacity external memory. NEC Electronics' new technology enables very high-resolution processing with just one frame of image data. With standard video interfaces such as 24-bit CMOS I/O with RGB or YUV for easy connection, the super-resolution ASSP easily can be added to existing designs.
The technology enhances image data from quarter video graphics array (QVGA) resolution (320 x 240 pixels) to wide VGA (WVGA) resolution (800 x 480 pixels) for clear image display on mobile phones and car navigation systems. The technology also achieves crisp images in 1920 x 1080-pixel high-definition (HD) television broadcasts by boosting image data in the 640 x 480-pixel VGA format ordinarily used for TV broadcasts and DVD storage by a factor of six.
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