摘要 |
The method of image restoration comprises processing 5 an estimate of an original image so as to obtain an estimate of a received degraded version of the original image; comparing the estimate of the received degraded image with an actual received degraded version of the original image to obtain an indication of the difference between the actual received degraded image and the estimate of the received degraded image and utilising said difference to improve said estimate of the original image. Normally the steps of the method are executed a number of times using for the first step of each further execution the improved estimate of the original image obtained in the preceding execution. Processing means 5 may comprise a neural network. In such a method in the final step of at least one of the executions, e.g. in alternate executions, instead of utilising the difference to improve the estimate of the original image, the difference is utilised to modify the processing of the first step in such a manner as to improve the estimate of the received degraded image obtained in the first step of the next execution. <IMAGE> |