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Contour and skeleton are two complementary representations for shape recognition. However combining them in a principal way is nontrivial, as they are generally abstracted by different structures (closed string vs graph), respectively. This…

Computer Vision and Pattern Recognition · Computer Science 2016-05-23 Wei Shen , Yuan Jiang , Wenjing Gao , Dan Zeng , Xinggang Wang

We introduce a novel problem, i.e., the localization of an input image within a multi-modal reference map represented by a database of 3D scene graphs. These graphs comprise multiple modalities, including object-level point clouds, images,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Yang Miao , Francis Engelmann , Olga Vysotska , Federico Tombari , Marc Pollefeys , Dániel Béla Baráth

Most state-of-the-art text detection methods are specific to horizontal Latin text and are not fast enough for real-time applications. We introduce Segment Linking (SegLink), an oriented text detection method. The main idea is to decompose…

Computer Vision and Pattern Recognition · Computer Science 2017-04-14 Baoguang Shi , Xiang Bai , Serge Belongie

Skeleton extraction is a task focused on providing a simple representation of an object by extracting the skeleton from the given binary or RGB image. In recent years many attractive works in skeleton extraction have been made. But as far…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Zixuan Huang , Yunfeng Wang , Zhiwen Chen , Xin Gao , Ruili Feng , Xiaobo Li

Scene Text Recognition (STR), the task of recognizing text against complex image backgrounds, is an active area of research. Current state-of-the-art (SOTA) methods still struggle to recognize text written in arbitrary shapes. In this…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Ron Litman , Oron Anschel , Shahar Tsiper , Roee Litman , Shai Mazor , R. Manmatha

Image semantic segmentation is parsing image into several partitions in such a way that each region of which involves a semantic concept. In a weakly supervised manner, since only image-level labels are available, discriminating objects…

Computer Vision and Pattern Recognition · Computer Science 2019-06-10 Mohammad Kamalzare , Reza Kahani , Alireza Talebpour , Ahmad Mahmoudi-Aznaveh

Automatic reading texts in scenes has attracted increasing interest in recent years as texts often carry rich semantic information that is useful for scene understanding. In this paper, we propose a novel scene text proposal technique…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Dinh NguyenVan , Shijian Lu , Shangxuan Tian , Nizar Ouarti , Mounir Mokhtari

Modeling semantic information is helpful for scene text recognition. In this work, we propose to model semantic and visual information jointly with a Visual-Semantic Transformer (VST). The VST first explicitly extracts primary semantic…

Computer Vision and Pattern Recognition · Computer Science 2021-12-03 Xin Tang , Yongquan Lai , Ying Liu , Yuanyuan Fu , Rui Fang

In natural images, the scales (thickness) of object skeletons may dramatically vary among objects and object parts, making object skeleton detection a challenging problem. We present a new convolutional neural network (CNN) architecture by…

Computer Vision and Pattern Recognition · Computer Science 2018-08-14 Kai Zhao , Wei Shen , Shanghua Gao , Dandan Li , Ming-Ming Cheng

In this paper we give a new, efficient algorithm for computing curve skeletons, based on local separators. Our efficiency stems from a multilevel approach, where we solve small problems across levels of detail and combine these in order to…

Computational Geometry · Computer Science 2024-11-21 J. Andreas Bærentzen , Rasmus Emil Christensen , Emil Toftegaard Gæde , Eva Rotenberg

The work proposes an image segmentation algorithm that isolates slender regions in three-dimensional microstructures. Characterizing slender regions in material microstructures is an extremely important aspect in material science because…

Data Analysis, Statistics and Probability · Physics 2025-03-13 Vinit Vijay Deshpande , Romana Piat

The task of translating natural language questions into query languages has long been a central focus in semantic parsing. Recent advancements in Large Language Models (LLMs) have significantly accelerated progress in this field. However,…

Computation and Language · Computer Science 2025-11-25 Yuchen Ji , Bo Xu , Jie Shi , Jiaqing Liang , Deqing Yang , Yu Mao , Hai Chen , Yanghua Xiao

Signed languages are visual languages produced by the movement of the hands, face, and body. In this paper, we evaluate representations based on skeleton poses, as these are explainable, person-independent, privacy-preserving,…

In recent years, text-image joint pre-training techniques have shown promising results in various tasks. However, in Optical Character Recognition (OCR) tasks, aligning text instances with their corresponding text regions in images poses a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Chen Duan , Pei Fu , Shan Guo , Qianyi Jiang , Xiaoming Wei

Semantic segmentation methods have achieved outstanding performance thanks to deep learning. Nevertheless, when such algorithms are deployed to new contexts not seen during training, it is necessary to collect and label scene-specific data…

Computer Vision and Pattern Recognition · Computer Science 2020-06-19 Daniele Di Mauro , Antonino Furnari , Giuseppe Patanè , Sebastiano Battiato , Giovanni Maria Farinella

In this paper, we propose an effective scene text recognition method using sparse coding based features, called Histograms of Sparse Codes (HSC) features. For character detection, we use the HSC features instead of using the Histograms of…

Computer Vision and Pattern Recognition · Computer Science 2015-12-31 Da-Han Wang , Hanzi Wang , Dong Zhang , Jonathan Li , David Zhang

Segmentation localizes objects in an image on a fine-grained per-pixel scale. Segmentation benefits by humans-in-the-loop to provide additional input of objects to segment using a combination of foreground or background clicks. Tasks…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Nikolai Warner , Meera Hahn , Jonathan Huang , Irfan Essa , Vighnesh Birodkar

Scene-text spotting is a task that predicts a text area on natural scene images and recognizes its text characters simultaneously. It has attracted much attention in recent years due to its wide applications. Existing research has mainly…

Computer Vision and Pattern Recognition · Computer Science 2023-02-22 Masato Fujitake

In this paper, we propose a novel architecture that iteratively discovers and segments out the objects of a scene based on the image reconstruction quality. Different from other approaches, our model uses an explicit localization module…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Weitang Liu , Lifeng Wei , James Sharpnack , John D. Owens

A skeleton representation of the human body has been proven to be effective for this task. The skeletons are presented in graphs form-like. However, the topology of a graph is not structured like Euclidean-based data. Therefore, a new set…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Motasem S. Alsawadi , Miguel Rio