Radiotherapy treatments are carried out using computerized axial tomography. In radiation therapy planning, the radiation oncologist must do a manual segmentation of volumes of interest to delineate the organs that should be irradiated.
Eliseo Vargas-Bedoya +5 more
doaj +1 more source
Optimizing 3DCT image registration for interfractional changes in carbon-ion prostate radiotherapy
To perform setup procedures including both positional and dosimetric information, we developed a CT–CT rigid image registration algorithm utilizing water equivalent pathlength (WEPL)-based image registration and compared the resulting dose distribution ...
Ryusuke Hirai +4 more
doaj +1 more source
The Influence of Intensity Standardization on Medical Image Registration
Acquisition-to-acquisition signal intensity variations (non-standardness) are inherent in MR images. Standardization is a post processing method for correcting inter-subject intensity variations through transforming all images from the given image gray ...
Bagci, Ulas, Bai, Li, Udupa, Jayaram K.
core +1 more source
THE IMAGE REGISTRATION OF FOURIER-MELLIN BASED ON THE COMBINATION OF PROJECTION AND GRADIENT PREPROCESSING [PDF]
Image registration is one of the most important applications in the field of image processing. The method of Fourier Merlin transform, which has the advantages of high precision and good robustness to change in light and shade, partial blocking, noise ...
D. Gao, X. Zhao, X. Pan
doaj +1 more source
New Evolutionary-Based Techniques for Image Registration
The work reported in this paper aims at the development of evolutionary algorithms to register images for signature recognition purposes. We propose and develop several registration methods in order to obtain accurate and fast algorithms.
Catalina-Lucia Cocianu, Alexandru Stan
doaj +1 more source
SAR Image and Optical Image Registration Based on Point Feature [PDF]
Aiming at the low registration accuracy of Synthetic Aperture Radar (SAR) images and optical images,a point feature descriptor HHIHC based on corner amplitude and orientation is proposed to improve the Harris corner detector.The detector's response ...
QIN Jie, JI Zexuan, CAO Guo
doaj +1 more source
A method of UAV visible light remote sensing image registration based on eigenvector technique
As the advancement of unmanned aerial vehicle technology and deep learning technology, many deep learning technologies have been applied in the field of unmanned aerial vehicle image research.
Yuelei Qian, Hongbin Shi, Guangchun Liu
doaj +1 more source
Computing Topology Preservation of RBF Transformations for Landmark-Based Image Registration
In image registration, a proper transformation should be topology preserving. Especially for landmark-based image registration, if the displacement of one landmark is larger enough than those of neighbourhood landmarks, topology violation will be ...
A Rossi De +14 more
core +1 more source
Topography-assisted UAV InSAR Image Registration Method with Image Partition
Miniaturized and lightweight Unmanned Aerial Vehicles (UAV) provide a flexible platform for Synthetic Aperture Radar (SAR). The application of UAV Interferometric SAR (InSAR) is gradually increasing in interferometric measurement fields.
Xin XIE +3 more
doaj +1 more source
Attention Guided Policy Optimization for 3D Medical Image Registration
Learning-based image registration approaches typically learn to map from input images to a transformation matrix. Regarding the current deep-learning-based image rigid registration approaches learn a transformation matrix in a one-shot way.
Jing Hu +6 more
doaj +1 more source

