{"url":"/dataset/caltech-cars","name":"Caltech Cars","full_name":null,"description_markdown":"The Caltech Cars dataset consists of 126 rear-view photographs captured within parking lots. These images possess a resolution of 896 × 592 pixels, featuring a solitary vehicle as the primary subject. The acquisitions were made during daylight hours employing a handheld camera at roughly equivalent distances for all instances.\r\n\r\n\"The dataset was presented in a PhD thesis titled 'Unsupervised learning of models for object recognition.'\"","description_withheld":null,"homepage":"https://data.caltech.edu/records/20084","introduced_date":"2000-01-01","introduced_date_note":null,"introduced_by":null,"license":{"name":"Research Only","url":null},"modalities":[{"name":"Images","url":"/datasets/modality/images"}],"tasks":[{"name":"License Plate Recognition","url":"/task/license-plate-recognition","datasets_with_task":"/datasets/task/license-plate-recognition"},{"name":"License Plate Detection","url":"/task/license-plate-detection","datasets_with_task":"/datasets/task/license-plate-detection"}],"languages":[{"name":"English","url":"/datasets/language/english"}],"variants":["Caltech Cars"],"data_loaders":[],"num_papers_in_archive":2,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[{"leaderboard":"/sota/license-plate-recognition-on-caltech-cars","task":"License Plate Recognition","dataset_variant":"Caltech Cars","rows":1,"metrics":["Rank-1 Recognition Rate"],"first_row_in_archive_order":{"model":"YOLOv2 + Fast-YOLOv2 + CR-NET","paper":"/paper/an-efficient-and-layout-independent-automatic","metrics":{"Rank-1 Recognition Rate":"98.7"},"code_links":[{"title":"brightyoun/TITS-LPST","url":"https://github.com/brightyoun/TITS-LPST"}]},"note":"rows are the archive's own order at snapshot; nothing here re-ranks them"}],"papers_with_a_benchmark_row":[{"paper":"/paper/an-efficient-and-layout-independent-automatic","title":"An Efficient and Layout-Independent Automatic License Plate Recognition System Based on the YOLO detector","date":"2019-09-04","rows_on_this_dataset":1,"code_links":1,"syntology":null}],"syntology_totals":{"read_at":"2026-09-24T18:15:14+00:00","papers_with_samples":0,"samples_harvested":0,"samples_ran":0,"samples_unverified":0,"pointer_only_for_licence":0,"papers_with_no_sample_that_ran":0,"note":"the per-paper counts above, summed; not a rate"},"papers_note":"The archive never published its papers-using-dataset list; these are papers with a leaderboard row on this dataset's benchmarks."}