| 摘要 |
A method of and apparatus for deconvolving an image from an encoding mask (2) with which it has been convolved is described. The encoding (2) mask has an arrangement of elements that filter incident images by altering the transverse spatial distribution of the amplitude and/or phase of the images. A convolved image (12) is received. A decoding mask (8) having an arrangement of elements dependent upon the arrangement of elements in the encoding mask is provided. An optical Fourier transform is used to form an intermediate optical pattern derived from the convolved image (12) and the arrangement of elements in the decoding mask (8). An optical inverse Fourier transform is performed on said intermediate optical pattern. The result may be detected at a detector (3) as a deconvolved image representative of the original scene (1).
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