{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/fast-shadow-detection-from-a-single-image","title":"Fast Shadow Detection from a Single Image Using a Patched Convolutional Neural Network","arxiv_id":"1709.09283","date":"2017-09-26","proceeding":null,"authors":["Sepideh Hosseinzadeh","Moein Shakeri","Hong Zhang"],"abstract":"In recent years, various shadow detection methods from a single image have\nbeen proposed and used in vision systems; however, most of them are not\nappropriate for the robotic applications due to the expensive time complexity.\nThis paper introduces a fast shadow detection method using a deep learning\nframework, with a time cost that is appropriate for robotic applications. In\nour solution, we first obtain a shadow prior map with the help of multi-class\nsupport vector machine using statistical features. Then, we use a semantic-\naware patch-level Convolutional Neural Network that efficiently trains on\nshadow examples by combining the original image and the shadow prior map.\nExperiments on benchmark datasets demonstrate the proposed method significantly\ndecreases the time complexity of shadow detection, by one or two orders of\nmagnitude compared with state-of-the-art methods, without losing accuracy.","url_abs":"http://arxiv.org/abs/1709.09283v2","url_pdf":"http://arxiv.org/pdf/1709.09283v2.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"abstracts"},"code_links":[{"paper_slug":"fast-shadow-detection-from-a-single-image","repo_url":"https://github.com/sepidehhosseinzadeh/Fast-Shadow-Detection","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[{"task_slug":"shadow-detection","task_name":"Shadow Detection"}],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[{"leaderboard":"/sota/shadow-detection-on-sbu","task":"Shadow Detection","dataset":"SBU / SBU-Refine","model":"DSC (CVPR 2018, TPAMI 2020) (512x512)","rank_in_archive_order":11,"of":16,"metrics":{"BER":"6.34"},"uses_additional_data":false}],"syntology":{"atlas_url":"https://app.syntology.ai/?focus=1709.09283","mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}