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Dynamic View Interpolation without Affine Reconstruction
R. A. Manning and C. R. Dyer, Confluence of Computer Vision and Computer Graphics A. Leonardis, F. Solina and R. Bajcsy, eds., Kluwer, Dordrecht, The Netherlands, 2000, 123-142.

Abstract

This chapter presents techniques for view interpolation between two reference views of a dynamic scene captured at different times. The interpolations produced portray one possible physically-valid version of what transpired in the scene during the time between when the two reference views were taken. We show how straight-line object motion, relative to a camera-centered coordinate system, can be achieved, and how the appearance of straight-line object motion relative to the background can be created. The special case of affine cameras is also discussed. The methods presented work with widely-separated, uncalibrated cameras and sparse point correspondences. The approach does not involve finding the camera-to-camera transformation and thus does not implicitly perform affine reconstruction of the scene. For circumstances in which the camera-to-camera transformation can be found, we introduce a vector space of possible synthetic views that follows naturally from the given reference views. It is assumed that the motion of each object in the original scene consists of a series of rigid translations.