Abstract: “Imaging apparatus includes an image sensor, which is adapted to generate an input image in response to optical radiation. A processing engine is configured to apply a digital filter, having a kernel width greater than five pixels, to the input image to generate a filtered image. An optical assembly is arranged to focus the optical radiation onto the image sensor with a point spread function such that no more than a first threshold percentage of energy emitted from a point object and focused by the optical assembly falls within a first region of the image sensor having a first width five times the pitch of the image sensor, while at least a second threshold percentage of the energy emitted from the point object and focused by the optical assembly falls within a second region, which contains the first region and has a second width corresponding to the kernel width.

Abstract: Imaging apparatus includes an image sensor, which is adapted to generate an input image in response to optical radiation that is incident thereon. A processing engine is configured to apply a digital filter to the input image so as to generate a filtered image, the digital filter having a kernel, which has a kernel width that is greater than five pixels. An optical assembly is arranged to focus the optical radiation onto the image sensor with a point spread function (PSF) such that no more than a first threshold percentage of energy emitted from a point object and focused by the optical assembly falls within a first region of the image sensor having a first width that is five times the pitch of the image sensor, while at least a second threshold percentage of the energy emitted from the point object and focused by the optical assembly falls within a second region, which contains the first region and has a second width corresponding to the kernel width.

Abstract: A method and system for processing a distorted digital image B that is a convolution of an undistorted image F and a point spread function. Noise is removed from the image B so as to produce an image B? of reduced noise. The image F is then obtained based upon a calculation involving the image B?.