Institutional Repository of Radio Astronomy Research Laboratory
| Wavelet based tone mapping (TM) enhancement to a detection system for faint and compact sources in HDR and large FOV radio scenes | |
Shan, H.1,2 ; Cui, L.1,2; Hong, X. Y.3; Liu, X.1,2; Chang, N.1,2
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| 2023 | |
| Source Publication | ASTRONOMY AND COMPUTING
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| ISSN | 2213-1337 |
| Volume | 42Pages:100684 |
| Contribution Rank | 1 |
| Abstract | For high dynamic range (HDR) and large field-of-view (FOV) radio scenes, detection of faint sources with compact support and tiny sizes in comparatively extensive celestial areas is a challenging task. In the era of the Square Kilometer Array (SKA), it will be of particular concern, and data-targeted systematic methods are put on the agenda. This paper proposes a systematic method to solve this problem. From the perspective of image processing, a multiscale image contrast enhancement (ICE) is proposed to normalize the HDR. Source representation is realized by a starlet framework, where a two-step tone mapping (TM) including an arc-tangent function compression and an aggregated gain function enhancement are embedded. According to two bionic principles, the gain function is designed to highlight faint sources, remove artifacts (e.g., halos), and avoid feature distortions. For source detection, an integration method is proposed for projections between the celestial and the planar coordinate systems. It serves for coordinate transform and source location. A detection indicator system is built, and elaborate discrimination principles are drawn up. In the experiments, this method is dedicated to the dataset of the TIFR GMRT Sky Survey (TGSS) alternative data release 1 (ADR1) to facilitate the scientific goal of discovering new sources. Results show its advantages over the state of the art methods in visual inspections and detection ratios, and preliminarily prove that it has prospects for future HDR and large FOV radio data. (c) 2022 Elsevier B.V. All rights reserved. |
| Keyword | Radio sources detection Detection criteria Tone mapping Wavelet Image enhancement Large field-of-view |
| DOI | 10.1016/j.ascom.2022.100684 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | DISCRETE OBJECT DETECTION ; BAYESIAN-APPROACH ; FIELD ; DECOMPOSITION ; PROBABILITY ; ALGORITHM ; SCIENCE ; IMAGES ; MODEL ; I. |
| Funding Project | National Key RD Program[2018YFA0404602] ; NSFC, China[11673056] ; NSFC, China[11173042] ; NSFC, China[U2031212] ; NSFC, China[61931002] ; China Scholarship Council[201409655001] ; Xinjiang NSF, China[2018D01A24] ; CAS Light of West China Program[2021-XBQNXZ-05] ; Youth Innovation Promotion Association of the CAS, China[2017084] ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China |
| WOS Research Area | Astronomy & Astrophysics ; Computer Science |
| WOS Subject | Astronomy & Astrophysics ; Computer Science, Interdisciplinary Applications |
| WOS ID | WOS:000916666800001 |
| Publisher | ELSEVIER |
| Funding Organization | National Key RD Program ; NSFC, China ; China Scholarship Council ; Xinjiang NSF, China ; CAS Light of West China Program ; Youth Innovation Promotion Association of the CAS, China ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5070 |
| Collection | 射电天文研究室_行星科学研究团组 射电天文研究室_星系宇宙学研究团组 |
| Corresponding Author | Shan, H. |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci St 1st, Urumqi 830011, Peoples R China 2.Xinjiang Key Lab Radio Astrophys, 150 Sci St 1st, Urumqi 830011, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China |
| Recommended Citation GB/T 7714 | Shan, H.,Cui, L.,Hong, X. Y.,et al. Wavelet based tone mapping (TM) enhancement to a detection system for faint and compact sources in HDR and large FOV radio scenes[J]. ASTRONOMY AND COMPUTING,2023,42:100684. |
| APA | Shan, H.,Cui, L.,Hong, X. Y.,Liu, X.,&Chang, N..(2023).Wavelet based tone mapping (TM) enhancement to a detection system for faint and compact sources in HDR and large FOV radio scenes.ASTRONOMY AND COMPUTING,42,100684. |
| MLA | Shan, H.,et al."Wavelet based tone mapping (TM) enhancement to a detection system for faint and compact sources in HDR and large FOV radio scenes".ASTRONOMY AND COMPUTING 42(2023):100684. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Shan-2023-Wavelet ba（5476KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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