{"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/surface-reconstruction-from-gaussian","title":"GS2Mesh: Surface Reconstruction from Gaussian Splatting via Novel Stereo Views","arxiv_id":"2404.01810","date":"2024-04-02","proceeding":null,"authors":["Yaniv Wolf","Amit Bracha","Ron Kimmel"],"abstract":"Recently, 3D Gaussian Splatting (3DGS) has emerged as an efficient approach for accurately representing scenes. However, despite its superior novel view synthesis capabilities, extracting the geometry of the scene directly from the Gaussian properties remains a challenge, as those are optimized based on a photometric loss. While some concurrent models have tried adding geometric constraints during the Gaussian optimization process, they still produce noisy, unrealistic surfaces. We propose a novel approach for bridging the gap between the noisy 3DGS representation and the smooth 3D mesh representation, by injecting real-world knowledge into the depth extraction process. Instead of extracting the geometry of the scene directly from the Gaussian properties, we instead extract the geometry through a pre-trained stereo-matching model. We render stereo-aligned pairs of images corresponding to the original training poses, feed the pairs into a stereo model to get a depth profile, and finally fuse all of the profiles together to get a single mesh. The resulting reconstruction is smoother, more accurate and shows more intricate details compared to other methods for surface reconstruction from Gaussian Splatting, while only requiring a small overhead on top of the fairly short 3DGS optimization process. We performed extensive testing of the proposed method on in-the-wild scenes, obtained using a smartphone, showcasing its superior reconstruction abilities. Additionally, we tested the method on the Tanks and Temples and DTU benchmarks, achieving state-of-the-art results.","url_abs":"https://arxiv.org/abs/2404.01810v2","url_pdf":"https://arxiv.org/pdf/2404.01810v2.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":"surface-reconstruction-from-gaussian","repo_url":"https://github.com/yanivw12/gs2mesh","is_official":1,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"pytorch","reach":{"status":"ok"}}],"tasks":[{"task_slug":"3dgs","task_name":"3DGS"},{"task_slug":"novel-view-synthesis","task_name":"Novel View Synthesis"},{"task_slug":"stereo-matching-1","task_name":"Stereo Matching"},{"task_slug":"surface-reconstruction","task_name":"Surface Reconstruction"},{"task_slug":"world-knowledge","task_name":"World Knowledge"}],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":"https://app.syntology.ai/?focus=2404.01810","mcp":{"get_harvested_code_for_paper":{"arxiv_id":"2404.01810"}},"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/yanivw12/gs2mesh","reach":{"status":"ok"}}],"summary":{"ran":9,"unverified":1},"by_repo_kind":{"official":{"samples":10,"ran":9,"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":10,"samples":[{"code_sha256_prefix":"c163d4b27896eb74","entry":"RT_from_rot_pos","repo":"yanivw12/gs2mesh","repo_kind":"official","path":"gs2mesh_utils/transformation_utils.py","file_url":"https://github.com/yanivw12/gs2mesh/blob/HEAD/gs2mesh_utils/transformation_utils.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"c163d4b27896eb74"}},{"code_sha256_prefix":"84c770c9b43f3a32","entry":"choose_by_close_z","repo":"yanivw12/gs2mesh","repo_kind":"official","path":"gs2mesh_utils/renderer_utils.py","file_url":"https://github.com/yanivw12/gs2mesh/blob/HEAD/gs2mesh_utils/renderer_utils.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"84c770c9b43f3a32"}},{"code_sha256_prefix":"6d093d6328ab6152","entry":"convert_R_T_to_GS","repo":"yanivw12/gs2mesh","repo_kind":"official","path":"gs2mesh_utils/transformation_utils.py","file_url":"https://github.com/yanivw12/gs2mesh/blob/HEAD/gs2mesh_utils/transformation_utils.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"6d093d6328ab6152"}},{"code_sha256_prefix":"69e0116190b5a00c","entry":"create_downsampled_colmap_dir","repo":"yanivw12/gs2mesh","repo_kind":"official","path":"gs2mesh_utils/colmap_utils.py","file_url":"https://github.com/yanivw12/gs2mesh/blob/HEAD/gs2mesh_utils/colmap_utils.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"69e0116190b5a00c"}},{"code_sha256_prefix":"5a30cf3da9cf239c","entry":"create_strings","repo":"yanivw12/gs2mesh","repo_kind":"official","path":"gs2mesh_utils/eval_utils.py","file_url":"https://github.com/yanivw12/gs2mesh/blob/HEAD/gs2mesh_utils/eval_utils.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"5a30cf3da9cf239c"}},{"code_sha256_prefix":"246f612fa4978953","entry":"create_temp_jpg_folder","repo":"yanivw12/gs2mesh","repo_kind":"official","path":"gs2mesh_utils/masker_utils.py","file_url":"https://github.com/yanivw12/gs2mesh/blob/HEAD/gs2mesh_utils/masker_utils.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"246f612fa4978953"}},{"code_sha256_prefix":"218403ccf8713dcd","entry":"find_nearest_neighbors","repo":"yanivw12/gs2mesh","repo_kind":"official","path":"gs2mesh_utils/renderer_utils.py","file_url":"https://github.com/yanivw12/gs2mesh/blob/HEAD/gs2mesh_utils/renderer_utils.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"218403ccf8713dcd"}},{"code_sha256_prefix":"17829e5cf75618de","entry":"intrinsic_from_camera_params","repo":"yanivw12/gs2mesh","repo_kind":"official","path":"gs2mesh_utils/transformation_utils.py","file_url":"https://github.com/yanivw12/gs2mesh/blob/HEAD/gs2mesh_utils/transformation_utils.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"17829e5cf75618de"}},{"code_sha256_prefix":"de134e14c9c103d3","entry":"sort_camera_coordinates","repo":"yanivw12/gs2mesh","repo_kind":"official","path":"gs2mesh_utils/renderer_utils.py","file_url":"https://github.com/yanivw12/gs2mesh/blob/HEAD/gs2mesh_utils/renderer_utils.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"de134e14c9c103d3"}},{"code_sha256_prefix":"7aabc2dd2474bddb","entry":"prepare_eval","repo":"yanivw12/gs2mesh","repo_kind":"official","path":"gs2mesh_utils/eval_utils.py","file_url":"https://github.com/yanivw12/gs2mesh/blob/HEAD/gs2mesh_utils/eval_utils.py","link_basis":"first_harvest_node","language":"python","status":"unverified","verification_level":0,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"7aabc2dd2474bddb"}}]},"arxiv_metadata":null,"syntology_extracted_results":null}