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Adv. Comput. Intell. Intell. Inform."],"published-print":{"date-parts":[[2026,1,20]]},"abstract":"<jats:p>\n                    Fisheye cameras, with their wide field of view, are highly beneficial for applications such as unmanned systems. Solving the perspective-\n                    <jats:italic>n<\/jats:italic>\n                    -point (P\n                    <jats:italic>n<\/jats:italic>\n                    P) problem that estimates the pose of a camera is particularly important for fisheye cameras. However, most existing P\n                    <jats:italic>n<\/jats:italic>\n                    P methods are primarily developed for pinhole cameras, with limited research focusing on fisheye cameras. This study presents an efficient method for solving the P\n                    <jats:italic>n<\/jats:italic>\n                    P problem for fisheye cameras. The proposed method introduces a mapping from a fisheye camera image to a virtual image plane based on the geometric properties of the fisheye camera. Two-dimensional reference points on the virtual plane are then employed to solve the P\n                    <jats:italic>n<\/jats:italic>\n                    P problem. Error analysis validates the effectiveness of the mapping through numerical computation. The experimental results further demonstrate that the proposed method achieves better accuracy and efficiency than the existing methods.\n                  <\/jats:p>","DOI":"10.20965\/jaciii.2026.p0184","type":"journal-article","created":{"date-parts":[[2026,1,19]],"date-time":"2026-01-19T15:02:06Z","timestamp":1768834926000},"page":"184-193","source":"Crossref","is-referenced-by-count":0,"title":["An Efficient Method of Solving the P\n                    <i>n<\/i>\n                    P Problem for Fisheye Cameras"],"prefix":"10.20965","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-2623-138X","authenticated-orcid":true,"given":"Chenxiao","family":"Wang","sequence":"first","affiliation":[{"name":"Shanghai Research Institute for Intelligent Autonomous Systems, Tongji University, No.398 Lianchuang Road, Shanghai 201210, China"},{"name":"National Key Laboratory of Autonomous Intelligent Unmanned Systems, No.398 Lianchuang Road, Shanghai 201210, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6844-153X","authenticated-orcid":true,"given":"Biao","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, No.29 Jiangjun Avenue, Nanjing, Jiangsu 211106, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9178-9892","authenticated-orcid":true,"given":"Yulong","family":"Ding","sequence":"additional","affiliation":[{"name":"Shanghai Research Institute for Intelligent Autonomous Systems, Tongji University, No.398 Lianchuang Road, Shanghai 201210, China"},{"name":"National Key Laboratory of Autonomous Intelligent Unmanned Systems, No.398 Lianchuang Road, Shanghai 201210, China"},{"name":"Shanghai Artificial Intelligence Laboratory, No.129 Longwen Road, Shanghai 200232, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2461-523X","authenticated-orcid":true,"given":"Dunhui","family":"Xiao","sequence":"additional","affiliation":[{"name":"Shanghai Research Institute for Intelligent Autonomous Systems, Tongji University, No.398 Lianchuang Road, Shanghai 201210, China"},{"name":"National Key Laboratory of Autonomous Intelligent Unmanned Systems, No.398 Lianchuang Road, Shanghai 201210, China"},{"name":"School of Mathematical Sciences, Tongji University, No.1239 Siping Road, Shanghai 200092, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3839-5787","authenticated-orcid":true,"given":"Ben M.","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, The Chinese University of Hong Kong, Sha Tin, N.T., Hong Kong SAR, China"}]}],"member":"8550","published-online":{"date-parts":[[2026,1,20]]},"reference":[{"key":"key-10.20965\/jaciii.2026.p0184-1","doi-asserted-by":"crossref","unstructured":"Y. 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