ICDAR 2021 Competition on Historical Map Segmentation
| Autor: | Chazalon, Joseph, Carlinet, Edwin, Chen, Yizi, Perret, Julien, Duménieu, Bertrand, Mallet, Clément, Géraud, Thierry, Nguyen, Vincent, Nguyen, Nam, Baloun, Josef, Lenc, Ladislav, Král, Pavel |
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| Rok vydání: | 2021 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | This paper presents the final results of the ICDAR 2021 Competition on Historical Map Segmentation (MapSeg), encouraging research on a series of historical atlases of Paris, France, drawn at 1/5000 scale between 1894 and 1937. The competition featured three tasks, awarded separately. Task~1 consists in detecting building blocks and was won by the L3IRIS team using a DenseNet-121 network trained in a weakly supervised fashion. This task is evaluated on 3 large images containing hundreds of shapes to detect. Task~2 consists in segmenting map content from the larger map sheet, and was won by the UWB team using a U-Net-like FCN combined with a binarization method to increase detection edge accuracy. Task~3 consists in locating intersection points of geo-referencing lines, and was also won by the UWB team who used a dedicated pipeline combining binarization, line detection with Hough transform, candidate filtering, and template matching for intersection refinement. Tasks~2 and~3 are evaluated on 95 map sheets with complex content. Dataset, evaluation tools and results are available under permissive licensing at \url{https://icdar21-mapseg.github.io/}. Comment: Selected as one of the official competitions for the 16th International Conference on Document Analysis and Recognition (ICDAR 2021), September 5-10, 2021, Lausanne, Switzerland (https://icdar2021.org/). Extra material available at https://icdar21-mapseg.github.io/ |
| Databáze: | arXiv |
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