{"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/scalable-multi-temporal-remote-sensing-change-1","title":"Scalable Multi-Temporal Remote Sensing Change Data Generation via Simulating Stochastic Change Process","arxiv_id":"2309.17031","date":"2023-09-29","proceeding":"ICCV 2023 1","authors":["Zhuo Zheng","Shiqi Tian","Ailong Ma","Liangpei Zhang","Yanfei Zhong"],"abstract":"Understanding the temporal dynamics of Earth's surface is a mission of multi-temporal remote sensing image analysis, significantly promoted by deep vision models with its fuel -- labeled multi-temporal images. However, collecting, preprocessing, and annotating multi-temporal remote sensing images at scale is non-trivial since it is expensive and knowledge-intensive. In this paper, we present a scalable multi-temporal remote sensing change data generator via generative modeling, which is cheap and automatic, alleviating these problems. Our main idea is to simulate a stochastic change process over time. We consider the stochastic change process as a probabilistic semantic state transition, namely generative probabilistic change model (GPCM), which decouples the complex simulation problem into two more trackable sub-problems, \\ie, change event simulation and semantic change synthesis. To solve these two problems, we present the change generator (Changen), a GAN-based GPCM, enabling controllable object change data generation, including customizable object property, and change event. The extensive experiments suggest that our Changen has superior generation capability, and the change detectors with Changen pre-training exhibit excellent transferability to real-world change datasets.","url_abs":"https://arxiv.org/abs/2309.17031v1","url_pdf":"https://arxiv.org/pdf/2309.17031v1.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":"scalable-multi-temporal-remote-sensing-change-1","repo_url":"https://github.com/Z-Zheng/Changen","is_official":1,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"pytorch","reach":{"status":"ok","spdx":"Apache-2.0"}},{"paper_slug":"scalable-multi-temporal-remote-sensing-change-1","repo_url":"https://github.com/Z-Zheng/pytorch-change-models","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"pytorch","reach":null}],"tasks":[{"task_slug":"change-data-generation","task_name":"Change Data Generation"},{"task_slug":"change-detection","task_name":"Change Detection"}],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[{"leaderboard":"/sota/change-detection-on-s2looking","task":"Change Detection","dataset":"S2Looking","model":"ChangeStar(1x96, MiT-b1, Changen-90k)","rank_in_archive_order":3,"of":11,"metrics":{"F1-Score":"67.9"},"uses_additional_data":false},{"leaderboard":"/sota/change-detection-on-s2looking","task":"Change Detection","dataset":"S2Looking","model":"ChangeStar(1x96, ResNet-18, Changen-90k)","rank_in_archive_order":5,"of":11,"metrics":{"F1-Score":"67.1"},"uses_additional_data":false}],"syntology":{"atlas_url":"https://app.syntology.ai/?focus=2309.17031","mcp":{"get_harvested_code_for_paper":{"arxiv_id":"2309.17031"}},"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/Z-Zheng/pytorch-change-models","reach":null},{"provenance":"deterministic:regex_extraction","url":"https://github.com/Z-Zheng/Changen","reach":{"status":"ok","spdx":"Apache-2.0"}}],"summary":{"ran_draft_wrong":5},"by_repo_kind":{"listed":{"samples":5,"ran":5,"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":"54dea3330058807a","entry":"add_object","repo":"Z-Zheng/pytorch-change-models","repo_kind":"listed","path":"torchange/models/changen2/change_event_simulation.py","file_url":"https://github.com/Z-Zheng/pytorch-change-models/blob/HEAD/torchange/models/changen2/change_event_simulation.py","link_basis":"first_harvest_node","language":"python","status":"ran_draft_wrong","verification_level":1,"contract_check":"MISDECLARED","metamorphic_tier":null,"behaviour_fingerprint":true,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"54dea3330058807a"}},{"code_sha256_prefix":"80a339ff418f7dc1","entry":"generate_mask_seq","repo":"Z-Zheng/pytorch-change-models","repo_kind":"listed","path":"torchange/models/changen2/change_event_simulation.py","file_url":"https://github.com/Z-Zheng/pytorch-change-models/blob/HEAD/torchange/models/changen2/change_event_simulation.py","link_basis":"first_harvest_node","language":"python","status":"ran_draft_wrong","verification_level":1,"contract_check":"MISDECLARED","metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"80a339ff418f7dc1"}},{"code_sha256_prefix":"2bd48e8c5050c344","entry":"object_proposal","repo":"Z-Zheng/pytorch-change-models","repo_kind":"listed","path":"torchange/models/changen2/change_event_simulation.py","file_url":"https://github.com/Z-Zheng/pytorch-change-models/blob/HEAD/torchange/models/changen2/change_event_simulation.py","link_basis":"first_harvest_node","language":"python","status":"ran_draft_wrong","verification_level":1,"contract_check":"OUTPUT_MISDECLARED","metamorphic_tier":null,"behaviour_fingerprint":true,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"2bd48e8c5050c344"}},{"code_sha256_prefix":"2f0aa44595576500","entry":"remove_add_object","repo":"Z-Zheng/pytorch-change-models","repo_kind":"listed","path":"torchange/models/changen2/change_event_simulation.py","file_url":"https://github.com/Z-Zheng/pytorch-change-models/blob/HEAD/torchange/models/changen2/change_event_simulation.py","link_basis":"first_harvest_node","language":"python","status":"ran_draft_wrong","verification_level":1,"contract_check":"MISDECLARED","metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"2f0aa44595576500"}},{"code_sha256_prefix":"7371ceeda37a1a84","entry":"remove_object","repo":"Z-Zheng/pytorch-change-models","repo_kind":"listed","path":"torchange/models/changen2/change_event_simulation.py","file_url":"https://github.com/Z-Zheng/pytorch-change-models/blob/HEAD/torchange/models/changen2/change_event_simulation.py","link_basis":"first_harvest_node","language":"python","status":"ran_draft_wrong","verification_level":1,"contract_check":"MISDECLARED","metamorphic_tier":null,"behaviour_fingerprint":true,"licence":"Apache-2.0","inline_ok":true,"mcp_get_code":{"code_sha256":"7371ceeda37a1a84"}}]},"arxiv_metadata":null,"syntology_extracted_results":null}