| 摘要 |
The definition of a low-resolution image (10) may be improved by taking advantage of characteristics of its bimodal distribution (202) so as to produce an expanded image (206) with improved definition. This can not only reconstruct image information deteriorated by low-resolution devices, but also can refine original low spatial resolution so as to significantly improve image quality. An image is improved by iteratively solving a nonlinear optimization problem using a preferred Bimodal-Smooth-Average scoring method. Among the applications for the technique are improved optical character recognition, restoration of binary images, and restoration of video frames. |
