Towards Open Vocabulary Learning: A Survey

• URL: http://arxiv.org/abs/2306.15880v4
• Date: Thu, 1 Feb 2024 08:31:59 GMT
• Title: Towards Open Vocabulary Learning: A Survey
• Authors: Jianzong Wu, Xiangtai Li, Shilin Xu, Haobo Yuan, Henghui Ding, Yibo Yang, Xia Li, Jiangning Zhang, Yunhai Tong, Xudong Jiang, Bernard Ghanem, Dacheng Tao
• Abstract summary: Deep neural networks have made impressive advancements in various core tasks like segmentation, tracking, and detection. Recently, open vocabulary settings were proposed due to the rapid progress of vision language pre-training. This paper provides a thorough review of open vocabulary learning, summarizing and analyzing recent developments in the field.
• Score: 146.90188069113213
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In the field of visual scene understanding, deep neural networks have made impressive advancements in various core tasks like segmentation, tracking, and detection. However, most approaches operate on the close-set assumption, meaning that the model can only identify pre-defined categories that are present in the training set. Recently, open vocabulary settings were proposed due to the rapid progress of vision language pre-training. These new approaches seek to locate and recognize categories beyond the annotated label space. The open vocabulary approach is more general, practical, and effective compared to weakly supervised and zero-shot settings. This paper provides a thorough review of open vocabulary learning, summarizing and analyzing recent developments in the field. In particular, we begin by comparing it to related concepts such as zero-shot learning, open-set recognition, and out-of-distribution detection. Then, we review several closely related tasks in the case of segmentation and detection, including long-tail problems, few-shot, and zero-shot settings. For the method survey, we first present the basic knowledge of detection and segmentation in close-set as the preliminary knowledge. Next, we examine various scenarios in which open vocabulary learning is used, identifying common design elements and core ideas. Then, we compare the recent detection and segmentation approaches in commonly used datasets and benchmarks. Finally, we conclude with insights, issues, and discussions regarding future research directions. To our knowledge, this is the first comprehensive literature review of open vocabulary learning. We keep tracing related works at https://github.com/jianzongwu/Awesome-Open-Vocabulary.

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