| 摘要 |
According to the present invention, there is provided an apparatus comprising a sensor for detecting electromagnetic radiation from an object, focussing means arranged to focus said electromagnetic radiation onto the sensor, and a configurable element disposed between the focussing means and the sensor. The configurable element is switchable between a plurality of configurations, each configuration providing a different transfer function between the object and the sensor. As the configurable element is located between the focussing means and the sensor, the transfer function associated with each configuration contains information from both the Fourier and image domains, allowing a high resolution image to be reconstructed.
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