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Multi-spectral computed tomography is an emerging technology for the non-destructive identification of object materials and the study of their physical properties. Applications of this technology can be found in various scientific and…

Computer Vision and Pattern Recognition · Computer Science 2018-10-30 Christian Kehl , Wail Mustafa , Jan Kehres , Anders Bjorholm Dahl , Ulrik Lund Olsen

Shared embedding spaces are widely used for multimodal search and data curation. In practice, two problems often limit how well this works. First, embeddings can reflect modality more than meaning, so examples cluster by input type even…

Information Retrieval · Computer Science 2026-05-05 Pratyush Muthukumar , Harshil Kotamreddy , Sarah Amiraslani , Tomo Kanazawa , Ramani Akkati , Shaan Jain , Andrew Mathau

Image segmentation is fundamental to microstructural analysis for defect identification and structure-property correlation, yet remains challenging due to pronounced heterogeneity in materials images arising from varied processing and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Sanjeev S. Navaratna , Nikhil Thawari , Gunashekhar Mari , Amritha V P , Murugaiyan Amirthalingam , Rohit Batra

The existing segmentation techniques require high-fidelity images as input to perform semantic segmentation. Since the segmentation results contain most of edge information that is much less than the acquired images, the throughput gap…

Image and Video Processing · Electrical Eng. & Systems 2021-08-25 Haiyan Liu , Liheng Bian , Jun Zhang

We present a method combining affinity prediction with region agglomeration, which improves significantly upon the state of the art of neuron segmentation from electron microscopy (EM) in accuracy and scalability. Our method consists of a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 Jan Funke , Fabian David Tschopp , William Grisaitis , Arlo Sheridan , Chandan Singh , Stephan Saalfeld , Srinivas C. Turaga

In this paper we introduce a fully end-to-end approach for multi-spectral image registration and fusion. Our method for fusion combines images from different spectral channels into a single fused image by different approaches for low and…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Nati Ofir , Shai Silberstein , Dani Rozenbaum , Yosi Keller , Sharon Duvdevani Bar

Spectral clustering views the similarity matrix as a weighted graph, and partitions the data by minimizing a graph-cut loss. Since it minimizes the across-cluster similarity, there is no need to model the distribution within each cluster.…

Methodology · Statistics 2023-04-14 Leo L. Duan , Arkaprava Roy

Deep Neural Networks (DNNs) have the potential for making various clinical procedures more time-efficient by automating medical image segmentation. Due to their strong, in some cases human-level, performance, they have become the standard…

Image and Video Processing · Electrical Eng. & Systems 2022-02-24 Martijn M. A. Bosma , Arkadiy Dushatskiy , Monika Grewal , Tanja Alderliesten , Peter A. N. Bosman

Matching a target spectrum with known spectra in a spectral library is a common method for material identification in hyperspectral imaging research. Hyperspectral spectra exhibit precise absorption features across different wavelength…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Sampriti Soor , Priyanka Kumari , B. S. Daya Sagar , Amba Shetty

In this work, we try to address the challenging problem of dimple detection and segmentation in Titanium alloys using machine learning methods, especially neural networks. The images i.e. fractographs are obtained using a Scanning Election…

Image and Video Processing · Electrical Eng. & Systems 2020-10-02 Ashish Sinha , K S Suresh

Training of semantic segmentation models for material analysis requires micrographs and their corresponding masks. It is quite unlikely that perfect masks will be drawn, especially at the edges of objects, and sometimes the amount of data…

Computer Vision and Pattern Recognition · Computer Science 2024-08-02 Matias Oscar Volman Stern , Dominic Hohs , Andreas Jansche , Timo Bernthaler , Gerhard Schneider

Medical image segmentation is crucial for disease diagnosis and treatment planning, yet developing robust segmentation models often requires substantial computational resources and large datasets. Existing research shows that pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Paul Zaha , Lars Böcking , Simeon Allmendinger , Leopold Müller , Niklas Kühl

The present paper develops a general methodology for the morphological segmentation of hyperspectral images, i.e., with an important number of channels. This approach, based on watershed, is composed of a spectral classification to obtain…

Image and Video Processing · Electrical Eng. & Systems 2020-10-05 Guillaume Noyel , Jesus Angulo , Dominique Jeulin

Energy dispersive X-ray (EDX) spectrum imaging yields compositional information with a spatial resolution down to the atomic level. However, experimental limitations often produce extremely sparse and noisy EDX spectra. Under such…

We introduce a new spectral method for image segmentation that incorporates long range relationships for global appearance modeling. The approach combines two different graphs, one is a sparse graph that captures spatial relationships…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Jeova F. S. Rocha Neto , Pedro F. Felzenszwalb

Single-image super-resolution (SISR) has seen significant advancements through the integration of deep learning. However, the substantial computational and memory requirements of existing methods often limit their practical application.…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Xin Xu , Jinman Park , Paul Fieguth

Morphology of mitochondria plays critical roles in mediating their physiological functions. Accurate segmentation of mitochondria from 3D electron microscopy (EM) images is essential to quantitative characterization of their morphology at…

Computer Vision and Pattern Recognition · Computer Science 2022-06-16 Yunpeng Xiao , Youpeng Zhao , Ge Yang

Fast multi-phase processes in methane hydrate-bearing samples are challenging for micro-CT quantitative study because of complex tomographic data analysis involving time-consuming segmentation procedures. This is due to the sample…

Geophysics · Physics 2022-09-12 Mikhail I. Fokin , Viktor V. Nikitin , Anton A. Duchkov

The scanning electron microscope (SEM) produces an image of a sample by scanning it with a focused beam of electrons. The electrons interact with the atoms in the sample, which emit secondary electrons that contain information about the…

Computer Vision and Pattern Recognition · Computer Science 2017-09-08 Shahar Tsiper , Or Dicker , Idan Kaizerman , Zeev Zohar , Mordechai Segev , Yonina C. Eldar

The 3D characterization of microstructures is crucial for understanding and designing functional materials. However, the scanning electron microscope (SEM), widely used in scientific research, captures only 2D electron intensity…

Image and Video Processing · Electrical Eng. & Systems 2026-04-06 Shuo Chen , Yijin Li , Xi Zheng , Guofeng Zhang