Large Displacement 3D Scene Flow With Occlusion Reasoning
3D motion estimation is a fundamental problem with many computer vision applications. With the emergence of modern, affordable and increasingly accurate RGB-D sensors, single view approaches for estimating 3D motion, also known as scene flow, are becoming popular. In this paper we propose a novel coarse to fine correspondence-based scene flow approach to account for the effects of large displacements and to model occlusion, based on explicit geometric reasoning. Our methodology enforces piecewise motion rigidity at the level of the depth point cloud without explicitly smoothing the parameters of adjacent neighborhoods. By integrating all geometric and photometric components in a single, consistent, occlusion-aware energy model our method is able to deal with fast motions and large occlusions areas, as present in challenging datasets like MPI Sintel Flow Dataset, which have recently been augmented with depth information. By explicitly modeling large displacements and occlusion, we can now more successfully work with difficult sequences which cannot be currently processed by state of the art scene flow methods that rely on small inter-frame motion assumptions. We also show that by leveraging depth information, we can obtain superior correspondence fields compared to the best state of the art large-displacement (2D) optical flow methods.
Code (0)
등록된 구현이 없습니다.
Tasks
Motion EstimationOptical Flow EstimationSimilar Papers 제목 키워드 기반
SphereFlow: 6 DoF Scene Flow from RGB-D Pairs
We take a new approach to computing dense scene flow between a pair of consecutive RGB-D frames. We exploit the availability of depth data by seeking correspondences with respect to patches specified not as the pixels in…
Occlusion HandlingAggregation of local parametric candidates with exemplar-based occlusion handling for optical flow
Handling all together large displacements, motion details and occlusions remains an open issue for reliable computation of optical flow in a video sequence. We propose a two-step aggregation paradigm to address this prob…
Occlusion HandlingOptical Flow EstimationSelf-SuperFlow: Self-supervised Scene Flow Prediction in Stereo Sequences
In recent years, deep neural networks showed their exceeding capabilities in addressing many computer vision tasks including scene flow prediction. However, most of the advances are dependent on the availability of a vas…
PredictionOccInpFlow: Occlusion-Inpainting Optical Flow Estimation by Unsupervised Learning
Occlusion is an inevitable and critical problem in unsupervised optical flow learning. Existing methods either treat occlusions equally as non-occluded regions or simply remove them to avoid incorrectness. However, the o…
Occlusion HandlingOptical Flow EstimationLayered RGBD Scene Flow Estimation
As consumer depth sensors become widely available, estimating scene flow from RGBD sequences has received increasing attention. Although the depth information allows the recovery of 3D motion from a single view, it poses…
Optical Flow EstimationScene Flow EstimationScene Segmentation