We present a new camera projection model, which is intermediate between the affine camera model and the pin hole projection model. It is modeled as a perspective projection of 3D points into an arbitrary plane, followed by an affine transform of these projected points. We observe that the reprojection of a point into a novel image can be achieved uniquely provided that we have located a set of five reference points over four images (of which three are input images, and the fourth is the novel image). Also, the reprojection theory does not assume that the input images are captured from cameras with identical internal calibration parameters. Thus, we apply our technique to two different domains: 1) generation of novel images from a stereo pair; and 2) generation of virtual walk-through sequence with a monocular image sequence as input.
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