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- W4385890205 abstract "Visual chart recognition systems are gaining increasing attention due to the growing demand for automatically identifying table headers and values from chart images. Current methods rely on keypoint detection to estimate data element shapes in charts but suffer from grouping errors in post-processing. To address this issue, we propose ChartDETR, a transformer-based multi-shape detector that localizes keypoints at the corners of regular shapes to reconstruct multiple data elements in a single chart image. Our method predicts all data element shapes at once by introducing query groups in set prediction, eliminating the need for further postprocessing. This property allows ChartDETR to serve as a unified framework capable of representing various chart types without altering the network architecture, effectively detecting data elements of diverse shapes. We evaluated ChartDETR on three datasets, achieving competitive results across all chart types without any additional enhancements. For example, ChartDETR achieved an F1 score of 0.98 on Adobe Synthetic, significantly outperforming the previous best model with a 0.71 F1 score. Additionally, we obtained a new state-of-the-art result of 0.97 on ExcelChart400k. The code will be made publicly available." @default.
- W4385890205 created "2023-08-17" @default.
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- W4385890205 date "2023-08-15" @default.
- W4385890205 modified "2023-09-27" @default.
- W4385890205 title "ChartDETR: A Multi-shape Detection Network for Visual Chart Recognition" @default.
- W4385890205 doi "https://doi.org/10.48550/arxiv.2308.07743" @default.
- W4385890205 hasPublicationYear "2023" @default.
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