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This paper describes the MegaPipe image processing pipeline at the Canadian Astronomical Data Centre. The pipeline combines multiple images from the MegaCam mosaic camera on CFHT and combines them into a single output image. MegaPipe takes…

Astrophysics · Physics 2009-11-13 Stephen. D. J. Gwyn

Each photo in an image burst can be considered a sample of a complex 3D scene: the product of parallax, diffuse and specular materials, scene motion, and illuminant variation. While decomposing all of these effects from a stack of…

Computer Vision and Pattern Recognition · Computer Science 2023-12-25 Ilya Chugunov , David Shustin , Ruyu Yan , Chenyang Lei , Felix Heide

Large-scale image datasets frequently contain identifiable or sensitive content, raising privacy risks when training models that may memorize and leak such information. We present Unsafe2Safe, a fully automated pipeline that detects…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Mih Dinh , SouYoung Jin

This paper describes a new approach to the optimization of information extraction in multi-wavelength image cubes of cosmological fields. The objective is to create a framework for the automatic identification and tagging of sources…

Instrumentation and Methods for Astrophysics · Physics 2015-06-04 Maria Jose Marquez

We describe the calibration and imaging heuristics developed and deployed in the ALMA interferometric data processing pipeline, as of ALMA Cycle 9. The pipeline software framework is written in Python, with each data reduction stage layered…

Accurate precipitation estimation is critical for flood forecasting, water resource management, and disaster preparedness. Satellite products provide global hourly coverage but contain systematic biases; ground-based gauges are accurate at…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Shunya Nagashima , Takumi Bannai , Shuitsu Koyama , Tomoya Mitsui , Shuntaro Suzuki

We describe the first season COMAP analysis pipeline that converts raw detector readouts to calibrated sky maps. This pipeline implements four main steps: gain calibration, filtering, data selection, and map-making. Absolute gain…

Image patch matching, which is the process of identifying corresponding patches across images, has been used as a subroutine for many computer vision and image processing tasks. State -of-the-art patch matching techniques take image patches…

Computer Vision and Pattern Recognition · Computer Science 2018-11-09 Akila Pemasiri , Kien Nguyen , Sridha Sridharan , Clinton Fookes

With the end of Moore's Law, there is a growing demand for rapid architectural innovations in modern processors, such as RISC-V custom extensions, to continue performance scaling. Program sampling is a crucial step in microprocessor design,…

Hardware Architecture · Computer Science 2023-04-19 Yuanwei Fang , Zihao Liu , Yanheng Lu , Jiawei Liu , Jiajie Li , Yi Jin , Jian Chen , Yenkuang Chen , Hongzhong Zheng , Yuan Xie

Radio astronomy observatories with high throughput back end instruments require real-time data processing. While computing hardware continues to advance rapidly, development of real-time processing pipelines remains difficult and…

Visual Place Recognition (VPR) is the task of retrieving database images similar to a query photo by comparing it to a large database of known images. In real-world applications, extreme illumination changes caused by query images taken at…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Bingxi Liu , Yujie Fu , Feng Lu , Jinqiang Cui , Yihong Wu , Hong Zhang

We introduce a simple and efficient method to enhance and clarify images. More specifically, we deal with low light image enhancement and clarification of hazy imagery (hazy/foggy images, images containing sand dust, and underwater images).…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Alexander Belyaev , Pierre-Alain Fayolle , Michael Cohen

Multispectral (MS) image panchromatic (PAN) sharpening algorithms proposed to the remote sensing community are ever increasing in number and variety. Their aim is to sharpen a coarse spatial resolution MS image with a fine spatial…

Computer Vision and Pattern Recognition · Computer Science 2017-01-10 Andrea Baraldi , Francesca Despini , Sergio Teggi

Scanamorphos is one of the public softwares available to post-process scan observations performed with the Herschel photometer arrays. This post-processing mainly consists in subtracting the total low-frequency noise (both its thermal and…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 Hélène Roussel

Increasingly larger number of software systems today are including data science components for descriptive, predictive, and prescriptive analytics. The collection of data science stages from acquisition, to cleaning/curation, to modeling,…

Software Engineering · Computer Science 2022-02-15 Sumon Biswas , Mohammad Wardat , Hridesh Rajan

Nowadays, efficient and effective processing over massive stream data has attracted much attention from the database community, which are useful in many real applications such as sensor data monitoring, network intrusion detection, and so…

Databases · Computer Science 2019-09-27 Weilong Ren , Xiang Lian , Kambiz Ghazinour

This paper describes a scalable active learning pipeline prototype for large-scale brain mapping that leverages high performance computing power. It enables high-throughput evaluation of algorithm results, which, after human review, are…

During the 20th Century, aerial surveys captured hundreds of millions of high-resolution photographs of the earth's surface. These images, the precursors to modern satellite imagery, represent an extraordinary visual record of the…

Prompt-driven image analysis converts a single natural-language instruction into multiple steps: locate, segment, edit, and describe. We present a practical case study of a unified pipeline that combines open-vocabulary detection,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-11 Kaleem Ahmad

The production of science-ready data from major solar telescopes requires expertise beyond that of the typical observer. This is a consequence of the increasing complexity of instruments and observing sequences, which require calibrations…

Solar and Stellar Astrophysics · Physics 2014-12-17 J. de la Cruz Rodríguez , M. Löfdahl , P. Sütterlin , T. Hillberg , L. Rouppe van der Voort
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