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Changing Perspective in Stereoscopic Images(改变视角的立体图像)
1
Changing Perspective in Stereoscopic Images
Song-Pei Du, Shi-Min Hu, Member, IEEE, and Ralph R. Martin
Abstract—Traditional image editing techniques cannot be directly used to edit stereoscopic (‘3D’) media, as extra constraints
are needed to ensure consistent changes are made to both left and right images. Here, we consider manipulating perspective
in stereoscopic pairs. A straightforward approach based on depth recovery is unsatisfactory: instead, we use feature correspon-
dences between stereoscopic image pairs. Given a new, user-specified perspective, we determine correspondence constraints
under this perspective, and optimize a 2D warp for each image which preserves straight lines and guarantees proper stereopsis
relative to the new camera. Experiments verify that our method generates new stereoscopic views which correspond well to
expected projections, for a wide range of specified perspective. Various advanced camera effects, such as dolly zoom and wide
angle effects, can also be readily generated for stereoscopic image pairs using our method.
Index Terms—Stereoscopic images, stereopsis, perspective, warping.
1 INTRODUCTION stereoscopic images, such as stereoscopic inpainting
HE renaissance of ‘3D’ movies has led to the [6], disparity mapping [3], [7], and 3D copy & paste
Tdevelopment of both hardware and software [4]. However, relatively few tools are available com-
stereoscopic techniques for both professionals and pared to the number of 2D image tools.
consumers. Availability of 3D content
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