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标题: Scalable Motion-Aware Panoramic Videos [打印本页]

作者: 彬彬 时间: 2012-1-5 08:53
标题: Scalable Motion-Aware Panoramic Videos
Abstract

This work presents a method for obtaining perceptually natural

panoramic videos, that is, videos composed of wide-angle frames

where straight lines and object shapes are preserved. The shape

preservation for moving objects has a special treatment that ensures

temporal coherence. Energies describing these properties are

obtained for the case of a fixed omni-directional camera, and an optimization

procedure is presented. Our optimization works per-frame,

which makes the method scalable for arbitrarily long scenes.

Keywords: 2D Morphing and Warping, Panoramic Video.

1 Introduction

Recent developments in computational photography gave rise to

affordable omni-directional cameras, which are output video in the

equirectangular format. Applications in navigation, immersion, and

surveilance are the key driving forces of omni-directional video.

We consider a new use for the spherical videos captured by these

cameras: videos with wide-angle frames. We improve on recent

developments in the understanding of the distortions involved in

wide-angle images [Zorin and Barr 1995; Kopf et al. 2009; Carroll

et al. 2009], and study the implications of the introduction of the

time dimension.

Our method is divided into three phases: pre-processing, optimization

and post-processing. As in the work of [Carroll et al. 2009],

our pre-processing interface allows the user to select lines that are

to be straight in the final result video, as well as their final orientations.

The user can also specify the field-of-view (FOV) to be

considered in the input video. While these operations are performed,

our system detects the moving objects in the video using background

subtraction. Using this input, an optimization phase is performed

(see following sections). Finally, the post-processing stage consists

of specifying the rectangular area of the optimization results to store

in the output video.

作者: 彬彬 时间: 2012-1-13 11:36

作者: tc 时间: 2012-2-18 23:26
精典，学习了！

作者: 菜刀吻电线 时间: 2012-4-8 23:18
先垫一块，再说鸟

作者: C.R.CAN 时间: 2012-8-20 23:26
都闪开，介个帖子，偶来顶

作者: 铁锹 时间: 2012-8-21 11:40
最早的"裸眼3D"_1965年的3D电脑动画

900美元订制3D打印高跟鞋_潮流就是挥霍出来的

集成新模块需看市场需求_3D_IC是行业必然发展方向

新型虚拟现实视听设备亮相GC展获好评

塔塔科技借3D技术完成首次电动汽车可行性研究

GC2012消息：索尼避谈3D技术

3D打印汽车及配件_制造业的新技术革命将启？

作者: tc 时间: 2012-9-27 23:18
很有心,部分已收录自用,谢谢

作者: 奇 时间: 2012-10-8 23:25
提醒猪猪，千万不能让你看见

作者: 菜刀吻电线 时间: 2013-1-26 23:19
不错非常经典实用

作者: 奇 时间: 2013-2-1 23:33
提醒猪猪，千万不能让你看见

作者: 晃晃 时间: 2013-2-18 00:01
好`我顶``顶顶

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