Efficient 3D Object Segmentation from Densely Sampled Light Fields with Applications to 3D Reconstruction

From Kaan Yücer, Alexander Sorkine-Hornung, Oliver Wang, Olga Sorkine-Hornung:

Precise object segmentation in image data is a fundamental problem with various applications, including 3D object reconstruction. We present an efficient algorithm to automatically segment a static foreground object from highly cluttered background in light fields. A key insight and contribution of our paper is that a significant increase of the available input data can enable the design of novel, highly efficient approaches. In particular, the central idea of our method is to exploit high spatio-angular sampling on the order of thousands of input frames, e.g. captured as a hand-held video, such that new structures are revealed due to the increased coherence in the data. We first show how purely local gradient information contained in slices of such a dense light field can be combined with information about the camera trajectory to make efficient estimates of the foreground and background. These estimates are then propagated to textureless regions using edge-aware filtering in the epipolar volume. Finally, we enforce global consistency in a gathering step to derive a precise object segmentation both in 2D and 3D space, which captures fine geometric details even in very cluttered scenes. The design of each of these steps is motivated by efficiency and scalability, allowing us to handle large, real-world video datasets on a standard desktop computer... (paper)

Comments (0)

This post does not have any comments. Be the first to leave a comment below.

Post A Comment

You must be logged in before you can post a comment. Login now.

Featured Product

OCTOPUZ Robot Programming Software

OCTOPUZ Robot Programming Software

Program and simulate ALL your robots with OCTOPUZ offline software. OCTOPUZ specializes in path sensitive robotic applications such as welding, fabrication, edge following (waterjet, deburring, laser cutting), material removal (2D & 3D machining), and pick & place. Easy to learn, it directly supports paths from your favorite CAM system, has a library of over 15 different types of robot brands, can cut path generation by over 50% and is fully customizable to your unique needs. Program and simulate multiple robots simultaneously in any configuration! Responsive technical assistance from OCTOPUZ before, during and after sale via training, support and cell development make OCTOPUZ the software of choice.