{"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/context-aware-cross-level-fusion-network-for","title":"Context-aware Cross-level Fusion Network for Camouflaged Object Detection","arxiv_id":"2105.12555","date":"2021-05-26","proceeding":null,"authors":["Yujia Sun","Geng Chen","Tao Zhou","Yi Zhang","Nian Liu"],"abstract":"Camouflaged object detection (COD) is a challenging task due to the low boundary contrast between the object and its surroundings. In addition, the appearance of camouflaged objects varies significantly, e.g., object size and shape, aggravating the difficulties of accurate COD. In this paper, we propose a novel Context-aware Cross-level Fusion Network (C2F-Net) to address the challenging COD task. Specifically, we propose an Attention-induced Cross-level Fusion Module (ACFM) to integrate the multi-level features with informative attention coefficients. The fused features are then fed to the proposed Dual-branch Global Context Module (DGCM), which yields multi-scale feature representations for exploiting rich global context information. In C2F-Net, the two modules are conducted on high-level features using a cascaded manner. Extensive experiments on three widely used benchmark datasets demonstrate that our C2F-Net is an effective COD model and outperforms state-of-the-art models remarkably. Our code is publicly available at: https://github.com/thograce/C2FNet.","url_abs":"https://arxiv.org/abs/2105.12555v1","url_pdf":"https://arxiv.org/pdf/2105.12555v1.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":"context-aware-cross-level-fusion-network-for","repo_url":"https://github.com/thograce/C2FNet","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":1,"framework":"pytorch","reach":{"status":"ok","spdx":"Apache-2.0"}},{"paper_slug":"context-aware-cross-level-fusion-network-for","repo_url":"https://github.com/thograce/bgnet","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"pytorch","reach":{"status":"ok","spdx":"Apache-2.0"}}],"tasks":[{"task_slug":"camouflaged-object-segmentation","task_name":"Camouflaged Object Segmentation"},{"task_slug":"object","task_name":"Object"},{"task_slug":"object-detection","task_name":"Object Detection"},{"task_slug":"object-detection-1","task_name":"object-detection"}],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[{"leaderboard":"/sota/camouflaged-object-segmentation-on-pcod-1200","task":"Camouflaged Object Segmentation","dataset":"PCOD_1200","model":"C2FNet","rank_in_archive_order":6,"of":16,"metrics":{"S-Measure":"0.893"},"uses_additional_data":false}],"syntology":{"syntology_url":null,"atlas_url":"https://app.syntology.ai/?focus=2105.12555","mcp":{"get_harvested_code_for_paper":{"arxiv_id":"2105.12555"}},"developers":"https://syntology.ai/developers","read_at":"2026-09-24T18:15:14+00:00","read_at_is":"when the build read Syntology's graph, not when any sample ran","claim":"Per-sample execution status on synthesized fixtures; not a correctness claim about the paper. Samples come from repositories linked to the paper, official or community; repo_kind says which.","repos":[{"provenance":"external:paperswithcode_snapshot_2025-07-28","url":"https://github.com/thograce/bgnet","reach":{"status":"ok","spdx":"Apache-2.0"}},{"provenance":"deterministic:regex_extraction","url":"https://github.com/thograce/C2FNet","reach":{"status":"ok","spdx":"Apache-2.0"}}],"summary":{"ran":7,"unverified":2},"by_repo_kind":{"listed":{"samples":9,"ran":7,"repositories":1}},"repo_kind_vocabulary":{"official":"The archive marks this repository official for the paper","named_in_paper":"The archive records that the paper mentions this repository; it is not marked official","listed":"In the archive's code links for this paper, not marked official and not recorded as mentioned in the paper","found_in_text":"Syntology found this repository in the paper's own text; whether it is the authors' implementation is not asserted","community":"Not in the archive's code links for this paper; a community repository Syntology harvested"},"n_pointer_only_for_licence":0,"samples":[{"code_sha256_prefix":"dc89ec9e1ceeaf0e","entry":"Bottle2neck","repo":"thograce/bgnet","repo_kind":"listed","path":"net/bgnet.py","file_url":"https://github.com/thograce/bgnet/blob/HEAD/net/bgnet.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":"deterministic","behaviour_fingerprint":false,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"dc89ec9e1ceeaf0e"}},{"code_sha256_prefix":"5b643fdcf5ec7d4f","entry":"CAM","repo":"thograce/bgnet","repo_kind":"listed","path":"net/bgnet.py","file_url":"https://github.com/thograce/bgnet/blob/HEAD/net/bgnet.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":"deterministic","behaviour_fingerprint":false,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"5b643fdcf5ec7d4f"}},{"code_sha256_prefix":"510083514af9e07b","entry":"Conv1x1","repo":"thograce/bgnet","repo_kind":"listed","path":"net/bgnet.py","file_url":"https://github.com/thograce/bgnet/blob/HEAD/net/bgnet.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":true,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"510083514af9e07b"}},{"code_sha256_prefix":"7cb5b9c0edf1de63","entry":"ConvBNR","repo":"thograce/bgnet","repo_kind":"listed","path":"net/bgnet.py","file_url":"https://github.com/thograce/bgnet/blob/HEAD/net/bgnet.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":"deterministic","behaviour_fingerprint":true,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"7cb5b9c0edf1de63"}},{"code_sha256_prefix":"3e91c6c21890734a","entry":"EAM","repo":"thograce/bgnet","repo_kind":"listed","path":"net/bgnet.py","file_url":"https://github.com/thograce/bgnet/blob/HEAD/net/bgnet.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"3e91c6c21890734a"}},{"code_sha256_prefix":"d94a13e5e9e5d33d","entry":"EFM","repo":"thograce/bgnet","repo_kind":"listed","path":"net/bgnet.py","file_url":"https://github.com/thograce/bgnet/blob/HEAD/net/bgnet.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":"deterministic","behaviour_fingerprint":true,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"d94a13e5e9e5d33d"}},{"code_sha256_prefix":"c6d8299a84a4226a","entry":"Res2Net","repo":"thograce/bgnet","repo_kind":"listed","path":"net/bgnet.py","file_url":"https://github.com/thograce/bgnet/blob/HEAD/net/bgnet.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":"deterministic","behaviour_fingerprint":true,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"c6d8299a84a4226a"}},{"code_sha256_prefix":"c22b6c00ea327170","entry":"Net","repo":"thograce/bgnet","repo_kind":"listed","path":"net/bgnet.py","file_url":"https://github.com/thograce/bgnet/blob/HEAD/net/bgnet.py","link_basis":"first_harvest_node","language":"python","status":"unverified","verification_level":0,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"c22b6c00ea327170"}},{"code_sha256_prefix":"75180c1886add24b","entry":"res2net50_v1b_26w_4s","repo":"thograce/bgnet","repo_kind":"listed","path":"net/bgnet.py","file_url":"https://github.com/thograce/bgnet/blob/HEAD/net/bgnet.py","link_basis":"first_harvest_node","language":"python","status":"unverified","verification_level":0,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"75180c1886add24b"}}]},"arxiv_metadata":null,"syntology_extracted_results":null}