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NEC develops super-resolution tech for fine magnification of surveillance camera Images

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NEC Corp has developed super-resolution technologies for fine magnification of surveillance camera images, including persons’ faces and license plates.

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Until now, existing technologies required numerous still images from a video in order to improve a subject’s resolution and enable its magnification. However, these images blur when magnified by more than 2 or 3 times (4 to 9 times the number of pixels). Therefore, significant demand remains for technologies that improve resolution and enable images to be magnified with greater clarity.

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NEC’s new technologies create a super-resolution image from just one shot of a subject, such as a person’s face or a car’s license plate, by utilizing a database of categorized images. This enables images to maintain fine details even when magnified by more than 4 times (more than 16 times the number of pixels), making it possible to distinguish small and distant subjects, which was difficult with conventional technologies.

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These new technologies are expected to be applied with surveillance cameras that cover such large areas as airports or traffic intersections.

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