Image Registration with Guaranteed Displacement Regularity

Regularity Guaranteed Human Pose Correction

Benefited from the advantages provided by depth sensors, 3D human pose estimation has become feasible. However, the current estimation systems usually yield poor results due to severe occlusion and sensor noise in depth data. In this paper, we focus on a post-process step, pose correction, which takes the initial estimated poses as the input and deliver more reliable results. Although the regre...

Deformable image registration for adaptive radiotherapy with guaranteed local rigidity constraints

BACKGROUND Deformable image registration (DIR) is a key component in many radiotherapy applications. However, often resulting deformations are not satisfying, since varying deformation properties of different anatomical regions are not considered. To improve the plausibility of DIR in adaptive radiotherapy in the male pelvic area, this work integrates a local rigidity deformation model into a D...

Optimal Image Registration with a Guaranteed One-to-one Point Match

Contourlet-Based Edge Extraction for Image Registration

Image registration is a crucial step in most image processing tasks for which the final result is achieved from a combination of various resources. In general, the majority of registration methods consist of the following four steps: feature extraction, feature matching, transform modeling, and finally image resampling. As the accuracy of a registration process is highly dependent to the fe...

Guaranteed Outlier Removal for Point Cloud Registration with Correspondences

An established approach for 3D point cloud registration is to estimate the registration function from 3D keypoint correspondences. Typically, a robust technique is required to conduct the estimation, since there are false correspondences or outliers. Current 3D keypoint techniques are much less accurate than their 2D counterparts, thus they tend to produce extremely high outlier rates. A large ...