Patent ID: 8405711

Claim:
A method for characterizing a camera with a transparent housing and a light source within the transparent housing, wherein the camera comprises an optical system and image sensor having pixels within a field of view of the optical system and pixels outside of the field of view of the optical system, comprising: placing the camera inside a light absorption environment so that no substantial reflected light falls on the optical system, and taking a first plurality of exposures using both the pixels within the field of view of the optical system and the pixels outside of the field of view of the optical system; placing the camera within a field-dependent reflectance environment, and taking a second plurality of exposures using both the pixels within the field of view of the optical system and the pixels outside of the field of view of the optical system; and processing the first and second pluralities of exposures to extract parameter values of a model for images to be taken with the camera; and based on the parameter values, compensating images captured by the camera after the images are captured.