{"url":"/method/roiwarp","slug":"roiwarp","name":"RoIWarp","full_name":"RoIWarp","full_name_withheld":false,"description_markdown":"**Region of Interest Warping**, or **RoIWarp**, is a form of [RoIPool](https://paperswithcode.com/method/roi-pooling) that is differentiable with respect to the box position. In practice, this takes the form of a RoIWarp layer followed by a standard [Max Pooling](https://paperswithcode.com/method/max-pooling) layer. The RoIWarp layer crops a feature map region and warps it into a target size by interpolation.","description_state":"present","introduced_year":null,"introduced_by":{"title":"Instance-aware Semantic Segmentation via Multi-task Network Cascades","paper":"/paper/instance-aware-semantic-segmentation-via","first_author":"Jifeng Dai","n_authors":3,"url_abs":null,"archive_paper_url":"https://paperswithcode.com/paper/instance-aware-semantic-segmentation-via"},"source":{"url":"http://arxiv.org/abs/1512.04412v1","title":"Instance-aware Semantic Segmentation via Multi-task Network Cascades","url_on_a_paper_host":true},"code_snippet_url":null,"code_snippet_url_on_a_code_host":false,"categories":[{"area":"Computer Vision","area_id":"computer-vision","collection":"RoI Feature Extractors","url":"/methods/category/roi-feature-extractors","pwc_aliases":[]}],"n_papers_tagged":1,"archive_num_papers":1,"papers_newest_first":[{"paper":"/paper/instance-aware-semantic-segmentation-via","title":"Instance-aware Semantic Segmentation via Multi-task Network Cascades","date":"2015-12-14","arxiv_id":"1512.04412","n_code_links":2,"syntology":null}],"papers_shown":1,"tasks":[{"task":"/task/multi-human-parsing","name":"Multi-Human Parsing","papers":1},{"task":"/task/object-detection","name":"Object Detection","papers":1},{"task":"/task/segmentation","name":"Segmentation","papers":1},{"task":"/task/semantic-segmentation","name":"Semantic Segmentation","papers":1},{"task":"/task/object-detection-1","name":"object-detection","papers":1}],"tasks_shown":5,"n_tasks":5,"usage_by_year":[{"year":"2015","papers":1}],"row_source":"methods_table","archive":{"source":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","archive_url":"https://paperswithcode.com/method/roiwarp"},"syntology_read_at":"2026-09-24T18:15:14+00:00"}