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标题: An Ellipsoid-based Perspective Projection Correction for Wide-angle Images [打印本页]

作者: 彬彬 时间: 2012-1-3 10:33
标题: An Ellipsoid-based Perspective Projection Correction for Wide-angle Images
1 Introduction

Wide-angle images have been wisely used in many areas since they

can provide much larger field-of-view (FOV) of a scene. But distortions

in these images disturb users’ perception and many research

works have been investigated to tackle this problem. Up to now,

several correction methods have been developed, such as the perspective,

Mercator and stereographic projections. However, these

methods tend to bend straight lines or distort the shapes of objects,

and [Zorin and Barr 1995] pointed out that no global projection

can preserve both straight lines and the shapes of objects. Recently,

[Carroll et al. 2009] proposed a content-preserving approach

to map wide-angle photographs onto image plane by computing a

spatially-varying projection. Unfortunately, it required the users to

draw about 20 lines on average as an initial step.

In this paper, we present an ellipsoid-based correction method, aiming

to minimize distortions in wide-angle images. Although it may

not reach the optimal result in some cases, the flexibility of our

method makes it a useful tool in practice.

作者: tc 时间: 2012-1-26 23:31
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作者: tc 时间: 2012-1-27 23:27
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作者: 菜刀吻电线 时间: 2012-3-22 23:31
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作者: C.R.CAN 时间: 2012-3-25 23:31
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作者: 晃晃 时间: 2012-7-9 23:22
有意思！学习了！

作者: 晃晃 时间: 2012-7-30 23:21
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作者: tc 时间: 2012-9-25 23:21
非常感谢，管理员设置了需要对新回复进行审核，您的帖子通过审核后将被显示出来，现在将转入主题

作者: tc 时间: 2012-10-27 23:20
发了那么多，我都不知道该用哪个给你回帖了，呵呵

作者: C.R.CAN 时间: 2012-11-14 04:04
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