{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:11:59Z","timestamp":1760145119236,"version":"build-2065373602"},"reference-count":41,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2024,6,17]],"date-time":"2024-06-17T00:00:00Z","timestamp":1718582400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62175251"],"award-info":[{"award-number":["62175251"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>As on-orbit space cameras evolve toward larger apertures, wider fields of view, and deeper cryogenic environments, achieving absolute radiometric calibration using an all-optical path blackbody reference source in orbit becomes increasingly challenging. Consequently, stars have emerged as a novel in-orbit standard source. However, due to differences in camera bands, directly obtaining the stellar radiance flux corresponding to specific camera bands is not feasible. In order to address this challenge, we propose a method for estimating radiance flux based on the MSX star catalog, which integrates a dual-band thermometry method with an improved grey wolf optimization (I-GWO) algorithm. In an experiment, we analyzed 351 stars with temperatures ranging from 4000 to 7000 K. The results indicate that our method achieved a temperature estimation accuracy of less than 10% for 83.5% of the stars, with an average estimation error of 5.82%. Compared with previous methods based on star catalogs, our approach significantly enhanced the estimation accuracy by 75.4%, improved algorithm stability by 91.3%, and reduced the computation time to only 3% of that required by other methods. Moreover, the on-orbit star calibration error using our stellar radiance flux estimation method remained within 5%. This study effectively leveraged the extensive data available in star catalogs, providing substantial support for the development of an infrared star calibration network, which holds significant value for the in-orbit calibration of large-aperture cameras. Future research will explore the potential applicability of this method across different spectral bands.<\/jats:p>","DOI":"10.3390\/rs16122198","type":"journal-article","created":{"date-parts":[[2024,6,17]],"date-time":"2024-06-17T08:48:31Z","timestamp":1718614111000},"page":"2198","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Estimation of Infrared Stellar Flux Based on Star Catalogs with I-GWO for Stellar Calibration"],"prefix":"10.3390","volume":"16","author":[{"given":"Yang","family":"Hong","sequence":"first","affiliation":[{"name":"Shanghai lnstitute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China"},{"name":"Key Laboratory of lntelligent lnfrared Perception, Chinese Academy of Sciences, Shanghai 200083, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}]},{"given":"Peng","family":"Rao","sequence":"additional","affiliation":[{"name":"Shanghai lnstitute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China"},{"name":"Key Laboratory of lntelligent lnfrared Perception, Chinese Academy of Sciences, Shanghai 200083, China"}]},{"given":"Yuxing","family":"Zhou","sequence":"additional","affiliation":[{"name":"Shanghai lnstitute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China"},{"name":"Key Laboratory of lntelligent lnfrared Perception, Chinese Academy of Sciences, Shanghai 200083, China"}]},{"given":"Xin","family":"Chen","sequence":"additional","affiliation":[{"name":"Shanghai lnstitute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China"},{"name":"Key Laboratory of lntelligent lnfrared Perception, Chinese Academy of Sciences, Shanghai 200083, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"164167","DOI":"10.1016\/j.ijleo.2020.164167","article-title":"Infrared dim target detection method inspired by human vision system","volume":"206","author":"Li","year":"2020","journal-title":"Optik"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1038\/s41377-021-00597-4","article-title":"High-accuracy source-independent radiometric calibration with low complexity for infrared photonic sensors","volume":"10","author":"Guo","year":"2021","journal-title":"Light Sci. 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