Fixed-focus digital camera with defocus correction and a method thereof

摘要

A fixed-focus digital camera with defocus correction includes a camera body within which an image sensor is supported. The camera also includes a lens that is supported at an actual distance from the image sensor for focusing an image onto the image sensor. This actual distance is set at least substantially to an optimum distance at which the lens optimally focuses an image on the image sensor. The camera also includes an image processor that accesses and uses preset parameters corresponding to any difference in distance between the optimum distance and the actual distance to process and thereby enhance the visual quality of a captured image. The parameters are obtained during manufacturing of the camera. An image of a calibration object is captured and processed to obtain the parameters. A method of manufacturing the fixed-focus digital camera is also described.