{"id":51584879,"url":"https://github.com/alvgaona/mosaic","last_synced_at":"2026-07-11T09:04:19.720Z","repository":{"id":361155233,"uuid":"1253277081","full_name":"alvgaona/mosaic","owner":"alvgaona","description":"Panoramic mosaic construction from overlapping images","archived":false,"fork":false,"pushed_at":"2026-05-29T10:53:15.000Z","size":6821,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"main","last_synced_at":"2026-05-29T12:28:31.002Z","etag":null,"topics":["computer-vision","kaze","mosaic","opencv","orb","sift"],"latest_commit_sha":null,"homepage":"","language":"Python","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/alvgaona.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2026-05-29T09:58:54.000Z","updated_at":"2026-05-29T10:54:37.000Z","dependencies_parsed_at":null,"dependency_job_id":null,"html_url":"https://github.com/alvgaona/mosaic","commit_stats":null,"previous_names":["alvgaona/mosaic"],"tags_count":null,"template":false,"template_full_name":null,"purl":"pkg:github/alvgaona/mosaic","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alvgaona%2Fmosaic","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alvgaona%2Fmosaic/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alvgaona%2Fmosaic/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alvgaona%2Fmosaic/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/alvgaona","download_url":"https://codeload.github.com/alvgaona/mosaic/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alvgaona%2Fmosaic/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":35356531,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-05-26T15:22:16.424Z","status":"online","status_checked_at":"2026-07-11T02:00:05.354Z","response_time":104,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["computer-vision","kaze","mosaic","opencv","orb","sift"],"created_at":"2026-07-11T09:04:17.803Z","updated_at":"2026-07-11T09:04:19.709Z","avatar_url":"https://github.com/alvgaona.png","language":"Python","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Mosaic\n\n[![Pixi Badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/prefix-dev/pixi/main/assets/badge/v0.json)](https://pixi.sh)\n\nPanoramic mosaic construction from overlapping images (TAVC assignment). The pipeline detects SIFT features,\nmatches descriptors, estimates homographies via DLT, filters outliers, and blends the warped images onto a\ncommon canvas.\n\n![Panorama of Escena5 (Picos de Europa, 7 images)](assets/panorama_scene5.jpg)\n\n## Installation\n\nThe project uses [pixi](https://pixi.sh) (conda-based) to manage the environment.\n\n1. Install pixi (if not already installed):\n\n   ```sh\n   curl -fsSL https://pixi.sh/install.sh | bash\n   ```\n\n2. Install the project dependencies (Python, OpenCV, NumPy, Matplotlib):\n\n   ```sh\n   pixi install\n   ```\n\n## Usage\n\nRun the pipeline with pixi. By default it processes all three scenes (`Escena3`, `Escena4`, `Escena5`):\n\n```sh\npixi run python mosaic.py\n```\n\nProcess specific scenes:\n\n```sh\npixi run python mosaic.py Escena5\n```\n\nRun the detector ablation study (SIFT, ORB, KAZE, BRISK):\n\n```sh\npixi run python mosaic.py --ablation Escena5\n```\n\nCompare the outlier-filtering methods (residual, geometric, RANSAC):\n\n```sh\npixi run python mosaic.py --filter-comparison Escena5\n```\n\nOutput panoramas and diagnostic figures are written to the project directory.\n\n## Results\n\nPanoramas reconstructed for the three scenes:\n\n| Scene | Images | Panorama |\n| --- | --- | --- |\n| Scene 3 (Ría del Nervión) | 2 | ![Panorama of Scene 3](assets/panorama_scene3.jpg) |\n| Scene 4 (Bermeo) | 3 | ![Panorama of Scene 4](assets/panorama_scene4.jpg) |\n| Scene 5 (Picos de Europa) | 7 | ![Panorama of Scene 5](assets/panorama_scene5.jpg) |\n\nFeature correspondences after outlier filtering (cyan: inliers; red lines: points above the error threshold):\n\n![Filtered correspondences for Scene 3](assets/correspondences_scene3.png)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Falvgaona%2Fmosaic","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Falvgaona%2Fmosaic","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Falvgaona%2Fmosaic/lists"}