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Analyzing microscopy images to extract biological object properties (e.g., their morphological organization, temporal dynamics, and population density) is fundamental to various biomedical research. Yet conducting this manually is costly…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Xiaofei Hui , Haoxuan Qu , Hossein Rahmani , Shuohong Wang , Jeff W. Lichtman , Jun Liu

In recent years, there has been a proliferation of wide-field sky surveys to search for a variety of transient objects. Using relatively short focal lengths, the optics of these systems produce undersampled stellar images often marred by a…

Astrophysics · Physics 2009-11-13 Fang Yuan , Carl W. Akerlof

The mapper construction is a powerful tool from topological data analysis that is designed for the analysis and visualization of multivariate data. In this paper, we investigate a method for stitching a pair of univariate mappers together…

Computational Geometry · Computer Science 2021-09-13 Youjia Zhou , Nathaniel Saul , Ilkin Safarli , Bala Krishnamoorthy , Bei Wang

We describe a compression method for floating-point astronomical images that gives compression ratios of 6 -- 10 while still preserving the scientifically important information in the image. The pixel values are first preprocessed by…

Instrumentation and Methods for Astrophysics · Physics 2010-09-10 W. D. Pence , R. L. White , R. Seaman

Wide-field high-resolution microscopy requires fast scanning and accurate image mosaicking to cover large fields of view without compromising image quality. However, conventional galvanometric scanning, particularly under sinusoidal…

Image and Video Processing · Electrical Eng. & Systems 2026-02-04 Ziyi Huang , Rosalinda Xiong , Yaning Wang , Jinglun Yu , Jin U. Kang

High-resolution satellite images are often scarce and costly, especially for remote areas or infrequent events. This shortage hampers the development and testing of machine learning models for land-cover classification, change detection,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Vlad Vasilescu , Daniela Faur , Teodor Costachioiu

Over-segmentation into superpixels is a very effective dimensionality reduction strategy, enabling fast dense image processing. The main issue of this approach is the inherent irregularity of the image decomposition compared to standard…

Computer Vision and Pattern Recognition · Computer Science 2025-09-25 Rémi Giraud , Merlin Boyer , Michaël Clément

With the development of Information technology and communication, a large part of the databases is dedicated to images and videos. Thus retrieving images related to a query image from a large database has become an important area of…

Computer Vision and Pattern Recognition · Computer Science 2020-01-01 Nazgol Hor , Shervan Fekri-Ershad

Proliferation of touch-based devices has made sketch-based image retrieval practical. While many methods exist for sketch-based object detection/image retrieval on small datasets, relatively less work has been done on large (web)-scale…

Computer Vision and Pattern Recognition · Computer Science 2015-11-03 Sarthak Parui , Anurag Mittal

This paper presents a useful method to achieve classification in satellite imagery. The approach is based on pixel level study employing various features such as correlation, homogeneity, energy and contrast. In this study gray-scale images…

Machine Learning · Computer Science 2018-08-03 Hazrat Ali , Adnan Ali Awan , Sanaullah Khan , Omer Shafique , Atiq ur Rahman , Shahid Khan

We propose a novel approach to compute high-resolution (2048x1024 and higher) depths for panoramas that is significantly faster and qualitatively and qualitatively more accurate than the current state-of-the-art method (360MonoDepth). As…

Computer Vision and Pattern Recognition · Computer Science 2022-10-27 Chi-Han Peng , Jiayao Zhang

The well-known technique outlined in the paper of Leon A. Gatys et al., A Neural Algorithm of Artistic Style, has become a trending topic both in academic literature and industrial applications. Neural Style Transfer (NST) constitutes an…

Computer Vision and Pattern Recognition · Computer Science 2020-08-03 Maria Karatzoglidi , Georgios Felekis , Eleni Charou

Digital co-addition of astronomical images is a common technique for increasing signal-to-noise and image depth. A modification of this simple technique has been applied to the detection of minor bodies in the Solar System: first stationary…

Earth and Planetary Astrophysics · Physics 2015-05-18 Alex H. Parker , JJ. Kavelaars

This article compares two style transfer methods in image processing: the traditional method, which synthesizes new images by stitching together small patches from existing images, and a modern machine learning-based approach that uses a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-13 Xinhe Xu , Zhuoer Wang , Yihan Zhang , Yizhou Liu , Zhaoyue Wang , Zhihao Xu , Muhan Zhao , Huaiying Luo

Geophysical inversion should ideally produce geologically realistic subsurface models that explain the available data. Multiple-point statistics is a geostatistical approach to construct subsurface models that are consistent with…

Geophysics · Physics 2017-01-09 T. Zahner , T. Lochbühler , G. Mariethoz , N. Linde

Automatic segmentation of objects from a single image is a challenging problem which generally requires training on large number of images. We consider the problem of automatically segmenting only the dynamic objects from a given pair of…

Computer Vision and Pattern Recognition · Computer Science 2016-04-19 Sri Raghu Malireddi , Shanmuganathan Raman

We present an approximate algorithm for matrix multiplication based on matrix sketching techniques. First one of the matrix is chosen and sparsified using the online matrix sketching algorithm, and then the matrix product is calculated…

Numerical Analysis · Computer Science 2014-06-12 Huan Wang , Christos Boutsidis , Edo Liberty , Daniel Hsu

This work presents a region-growing image segmentation approach based on superpixel decomposition. From an initial contour-constrained over-segmentation of the input image, the image segmentation is achieved by iteratively merging similar…

Computer Vision and Pattern Recognition · Computer Science 2018-03-20 Mahaman Sani Chaibou , Pierre-Henri Conze , Karim Kalti , Basel Solaiman , Mohamed Ali Mahjoub

We consider the application of a subspace migration (SM) algorithm to quickly identify small objects in microwave imaging. In various problems, it is easy to measure the diagonal elements of the scattering matrix if the location of the…

Numerical Analysis · Mathematics 2025-10-13 Won-Kwang Park

Satellite imagery is crucial for tasks like environmental monitoring and urban planning. Typically, it relies on semantic segmentation or Land Use Land Cover (LULC) classification to categorize each pixel. Despite the advancements brought…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Ionut M. Motoi , Leonardo Saraceni , Daniele Nardi , Thomas A. Ciarfuglia