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Automatic table detection in PDF documents has achieved a great success but tabular data extraction are still challenging due to the integrity and noise issues in detected table areas. The accurate data extraction is extremely crucial in…

Computation and Language · Computer Science 2022-05-24 Siwen Luo , Mengting Wu , Yiwen Gong , Wanying Zhou , Josiah Poon

Seam carving is a computational method capable of resizing images for both reduction and expansion based on its content, instead of the image geometry. Although the technique is mostly employed to deal with redundant information, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Thierry P. Moreira , Marcos Cleison S. Santana , Leandro A. Passos João Paulo Papa , Kelton Augusto P. da Costa

Textured 3D meshes jointly represent geometry, topology, and appearance, yet their irregular structure poses significant challenges for deep-learning-based semantic segmentation. While a few recent methods operate directly on meshes without…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Mohammadreza Heidarianbaei , Max Mehltretter , Franz Rottensteiner

Making line segment detectors more reliable under motion blurs is one of the most important challenges for practical applications, such as visual SLAM and 3D reconstruction. Existing line segment detection methods face severe performance…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Huai Yu , Hao Li , Wen Yang , Lei Yu , Gui-Song Xia

In this report, we describe the technical details of our submission to the 2024 RoboDrive Challenge Robust Map Segmentation Track. The Robust Map Segmentation track focuses on the segmentation of complex driving scene elements in BEV maps…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Xiaoshuai Hao , Yifan Yang , Hui Zhang , Mengchuan Wei , Yi Zhou , Haimei Zhao , Jing Zhang

This paper presents the novel approach towards table structure recognition by leveraging the guided anchors. The concept differs from current state-of-the-art approaches for table structure recognition that naively apply object detection…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Khurram Azeem Hashmi , Didier Stricker , Marcus Liwicki , Muhammad Noman Afzal , Muhammad Zeshan Afzal

We present OffRoadTranSeg, the first end-to-end framework for semi-supervised segmentation in unstructured outdoor environment using transformers and automatic data selection for labelling. The offroad segmentation is a scene understanding…

Computer Vision and Pattern Recognition · Computer Science 2021-06-29 Anukriti Singh , Kartikeya Singh , P. B. Sujit

Label-efficient segmentation aims to perform effective segmentation on input data using only sparse and limited ground-truth labels for training. This topic is widely studied in 3D point cloud segmentation due to the difficulty of…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Liyao Tang , Zhe Chen , Shanshan Zhao , Chaoyue Wang , Dacheng Tao

Medical image segmentation is essential for clinical diagnosis and treatment planning. Although transformer-based methods have achieved remarkable results, their high computational cost hinders clinical deployment. To address this issue, we…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Yaxuan Jiao , Qing Xu , Yuxiang Luo , Xiangjian He , Zhen Chen , Wenting Duan

Most semantic segmentation models treat semantic segmentation as a pixel-wise classification task and use a pixel-wise classification error as their optimization criterions. However, the pixel-wise error ignores the strong dependencies…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Shuai Zhao , Boxi Wu , Wenqing Chu , Yao Hu , Deng Cai

The task of table structure recognition aims to recognize the internal structure of a table, which is a key step to make machines understand tables. Currently, there are lots of studies on this task for different file formats such as ASCII…

Information Retrieval · Computer Science 2019-08-29 Zewen Chi , Heyan Huang , Heng-Da Xu , Houjin Yu , Wanxuan Yin , Xian-Ling Mao

Motivation: Cellular Electron CryoTomography (CECT) enables 3D visualization of cellular organization at near-native state and in sub-molecular resolution, making it a powerful tool for analyzing structures of macromolecular complexes and…

Quantitative Methods · Quantitative Biology 2017-04-14 Min Xu , Xiaoqi Chai , Hariank Muthakana , Xiaodan Liang , Ge Yang , Tzviya Zeev-Ben-Mordehai , Eric Xing

This work presents Adaptive Local-then-Global Merging (ALGM), a token reduction method for semantic segmentation networks that use plain Vision Transformers. ALGM merges tokens in two stages: (1) In the first network layer, it merges…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Narges Norouzi , Svetlana Orlova , Daan de Geus , Gijs Dubbelman

Extraction of transaction information from bank statements is required to assess one's financial well-being for credit rating and underwriting decisions. Unlike other financial documents such as tax forms or financial statements, extracting…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Abhishek Trivedi , Sourajit Mukherjee , Rajat Kumar Singh , Vani Agarwal , Sriranjani Ramakrishnan , Himanshu S. Bhatt

Existing techniques for text detection can be broadly classified into two primary groups: segmentation-based and regression-based methods. Segmentation models offer enhanced robustness to font variations but require intricate…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Qingwen Bu , Sungrae Park , Minsoo Khang , Yichuan Cheng

Accurate semantic segmentation models typically require significant computational resources, inhibiting their use in practical applications. Recent works rely on well-crafted lightweight models to achieve fast inference. However, these…

Computer Vision and Pattern Recognition · Computer Science 2023-02-20 Danna Xue , Fei Yang , Pei Wang , Luis Herranz , Jinqiu Sun , Yu Zhu , Yanning Zhang

This article introduces a novel approach to constructing a topometric map that allows for efficient navigation and decision-making in mobile robotics applications. The method generates the topometric map from a 2D grid-based map. The…

Robotics · Computer Science 2024-06-18 Scott Fredriksson , Akshit Saradagi , George Nikolakopoulos

In this paper, we introduces a new type of line-shaped image representation, named semantic line segment (Sem-LS) and focus on solving its detection problem. Sem-LS contains high-level semantics and is a compact scene representation where…

Computer Vision and Pattern Recognition · Computer Science 2020-01-01 Yi Sun , Xushen Han , Kai Sun , Boren Li , Yongjiang Chen , Mingyang Li

We propose a sampling-based method for computing the tensor ring (TR) decomposition of a data tensor. The method uses leverage score sampled alternating least squares to fit the TR cores in an iterative fashion. By taking advantage of the…

Numerical Analysis · Mathematics 2021-07-12 Osman Asif Malik , Stephen Becker

Named entity recognition (NER) is one of the best studied tasks in natural language processing. However, most approaches are not capable of handling nested structures which are common in many applications. In this paper we introduce a novel…

Computation and Language · Computer Science 2019-08-12 Joseph Fisher , Andreas Vlachos