Toshiba has developed a novel super-resolution technique for creating clear high-resolution still or video images from low-resolution ones.
If part of an image is enlarged, the image quality degrades, and the image stays unclear even if smooth interpolation is performed between pixels (image on left,top).
The newly developed method finds patterns similar to each part of the input image, overlaps the patterns found, and increases the pixel density (images on bottom) to obtain a clearer image (image on right, top). The conventional techniques of improving image resolution use multiple images of the same object and require significant processing time. On the contrary, the new technique requires only one image and shorter processing time, making it suitable for real-time moving-image up-converting processes such as displaying conventional standard-size pictures on a high-definition television.The method, which is also applicable to a single image like a photograph, is expected to find a broad range ofapplications.
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