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Article overview
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SPTS v2: Single-Point Scene Text Spotting | Yuliang Liu
; Jiaxin Zhang
; Dezhi Peng
; Mingxin Huang
; Xinyu Wang
; Jingqun Tang
; Can Huang
; Dahua Lin
; Chunhua Shen
; Xiang Bai
; Lianwen Jin
; | Date: |
4 Jan 2023 | Abstract: | End-to-end scene text spotting has made significant progress due to its
intrinsic synergy between text detection and recognition. Previous methods
commonly regard manual annotations such as horizontal rectangles, rotated
rectangles, quadrangles,and polygons as a prerequisite, which are much more
expensive than using single-point. For the first time, we demonstrate that
training scene text spotting models can be achieved with an extremely low-cost
single-point annotation by the proposed framework, termed SPTS v2. SPTS v2
reserves the advantage of the auto-regressive Transformer with an Instance
Assignment Decoder (IAD) through sequentially predicting the center points of
all text instances inside the same predicting sequence, while with a Parallel
Recognition Decoder (PRD) for text recognition in parallel. These two decoders
share the same parameters and are interactively connected with a simple but
effective information transmission process to pass the gradient and
information. Comprehensive experiments on various existing benchmark datasets
demonstrate the SPTS v2 can outperform previous state-of-the-art single-point
text spotters with fewer parameters while achieving 14x faster inference speed.
Most importantly, within the scope of our SPTS v2, extensive experiments
further reveal an important phenomenon that single-point serves as the optimal
setting for the scene text spotting compared to non-point, rectangular bounding
box, and polygonal bounding box. Such an attempt provides a significant
opportunity for scene text spotting applications beyond the realms of existing
paradigms. Code is available at this https URL | Source: | arXiv, 2301.01635 | Services: | Forum | Review | PDF | Favorites |
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