arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1910.02442cs.CV
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联合立体视频去模糊、场景流估计和运动对象分割

Joint Stereo Video Deblurring, Scene Flow Estimation and Moving Object Segmentation

Australian National University(澳大利亚国立大学);Northwestern Polytechnical University(西北工业大学)

Liyuan Pan, Yuchao Dai, Miaomiao Liu, Fatih Porikli, Quan Pan

摘要:

动态场景的立体视频通常由于相机运动和具有大深度变化的多个移动对象而显示出令人不快的模糊效果。给定连续的模糊立体视频帧,我们的目标是恢复潜在的干净图像,估计三维场景流和分割的多个运动物体。这三个任务以前被单独处理,未能利用这些任务之间的内在联系,不能实现最优。在本文中,我们建议通过利用它们的内在联系,在一个统一的框架中共同解决这三个任务。为此,我们表示的动态场景与分段平面模型,它利用局部结构的场景,并表示各种动态场景。在我们的模型下,这三个任务自然地连接在一起,并表示为三维场景结构和相机运动(动态场景的结构和运动)的参数估计。通过利用模糊模型约束,运动物体和三维场景结构,我们得到了一个能量最小化公式联合去模糊,场景流和分割。我们在合成数据集和公开可用的真实数据集上广泛评估了我们的方法,这些数据集包括快速移动的物体,相机运动,不受控制的照明条件和阴影。实验结果表明,我们的方法可以实现立体视频去模糊,场景流估计和运动对象分割,比国家的最先进的方法显着改善。

英文摘要:

Stereo videos for the dynamic scenes often show unpleasant blurred effects due to the camera motion and the multiple moving objects with large depth variations. Given consecutive blurred stereo video frames, we aim to recover the latent clean images, estimate the 3D scene flow and segment the multiple moving objects. These three tasks have been previously addressed separately, which fail to exploit the internal connections among these tasks and cannot achieve optimality. In this paper, we propose to jointly solve these three tasks in a unified framework by exploiting their intrinsic connections. To this end, we represent the dynamic scenes with the piece-wise planar model, which exploits the local structure of the scene and expresses various dynamic scenes. Under our model, these three tasks are naturally connected and expressed as the parameter estimation of 3D scene structure and camera motion (structure and motion for the dynamic scenes). By exploiting the blur model constraint, the moving objects and the 3D scene structure, we reach an energy minimization formulation for joint deblurring, scene flow and segmentation. We evaluate our approach extensively on both synthetic datasets and publicly available real datasets with fast-moving objects, camera motion, uncontrolled lighting conditions and shadows. Experimental results demonstrate that our method can achieve significant improvement in stereo video deblurring, scene flow estimation and moving object segmentation, over state-of-the-art methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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