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A
method to convert a monoscopic video movie to a stereoscopic video
movie is presented. This method is based on passively acquired
video images using a single camera and may be applied in PC based
real time system. Current methods for generating single camera
stereoscopic videos and ad-hoc standards are based on creating a
depth map. The depth map calculation is based on structure from
motion methods. In order to work properly the depth map should be
very dense and accurate. Otherwise, local deformations may occur.
Our proposed method is based on calculating a planar transformation
between images in the sequence and relies on the human capability to
sense the residual parallax. Therefore it does not depend on
calculation of the depth map. This advantage is of great importance
when deformation of even small objects is forbidden as in
reconnaissance and medical systems. The proposed method generates
stereoscopic image pairs. Each pair consists of the original image
and a transformed image. The transformed image is generated from
another image of the original sequence. That image is selected by
the algorithm such that a considerable parallax is developed between
the two original frames. The chosen image is then warped using the
planar transformation. Our algorithm assumes a good planar
transformation approximation between the images. Thus, residual
disparities are related to the distance from the average plane. As
such, zooming and rotation are eliminated after the warping process,
and the eyes integrate the images to 3D scene based on the
disparity. The algorithm has been tested and is demonstrated on
aerial scenes as well as terrestrial using a hand held camera.
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