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Place recognition plays a crucial role in re-localization and loop closure detection tasks for robots and vehicles. This paper seeks a well-defined global descriptor for LiDAR-based place recognition. Compared to local descriptors, global…

机器人学 · 计算机科学 2022-09-28 Yongzhi Fan , Xin Du , Lun Luo , Jizhong Shen

Scene text recognition (STR) is the task of recognizing character sequences in natural scenes. While there have been great advances in STR methods, current methods still fail to recognize texts in arbitrary shapes, such as heavily curved or…

计算机视觉与模式识别 · 计算机科学 2019-10-11 Junyeop Lee , Sungrae Park , Jeonghun Baek , Seong Joon Oh , Seonghyeon Kim , Hwalsuk Lee

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…

计算机视觉与模式识别 · 计算机科学 2019-06-10 Mohammad Kamalzare , Reza Kahani , Alireza Talebpour , Ahmad Mahmoudi-Aznaveh

Traditional text detection methods mostly focus on quadrangle text. In this study we propose a novel method named sliding line point regression (SLPR) in order to detect arbitrary-shape text in natural scene. SLPR regresses multiple points…

计算机视觉与模式识别 · 计算机科学 2018-01-31 Yixing Zhu , Jun Du

The structural analysis of shape boundaries leads to the characterization of objects as well as to the understanding of shape properties. The literature on graphs and networks have contributed to the structural characterization of shapes…

计算机视觉与模式识别 · 计算机科学 2017-11-15 Gisele H. B. Miranda , Jeaneth Machicao , Odemir M. Bruno

The prosperity of deep learning contributes to the rapid progress in scene text detection. Among all the methods with convolutional networks, segmentation-based ones have drawn extensive attention due to their superiority in detecting text…

计算机视觉与模式识别 · 计算机科学 2022-08-23 Jingyu Lin , Jie Jiang , Yan Yan , Chunchao Guo , Hongfa Wang , Wei Liu , Hanzi Wang

Reading text in the wild is a very challenging task due to the diversity of text instances and the complexity of natural scenes. Recently, the community has paid increasing attention to the problem of recognizing text instances with…

计算机视觉与模式识别 · 计算机科学 2019-08-07 MingKun Yang , Yushuo Guan , Minghui Liao , Xin He , Kaigui Bian , Song Bai , Cong Yao , Xiang Bai

We propose PSFormer, an effective point transformer model for 3D salient object detection. PSFormer is an encoder-decoder network that takes full advantage of transformers to model the contextual information in both multi-scale point- and…

计算机视觉与模式识别 · 计算机科学 2022-10-31 Baian Chen , Lipeng Gu , Xin Zhuang , Yiyang Shen , Weiming Wang , Mingqiang Wei

Moving infrared small target detection (IRSTD) plays a critical role in practical applications, such as surveillance of unmanned aerial vehicles (UAVs) and UAV-based search system. Moving IRSTD still remains highly challenging due to weak…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Houzhang Fang , Shukai Guo , Qiuhuan Chen , Yi Chang , Luxin Yan

Trajectory forecasting is critical for autonomous platforms to make safe planning and actions. Currently, most trajectory forecasting methods assume that object trajectories have been extracted and directly develop trajectory predictors…

计算机视觉与模式识别 · 计算机科学 2022-02-11 Pu Zhang , Lei Bai , Jianru Xue , Jianwu Fang , Nanning Zheng , Wanli Ouyang

We study analogical trajectory transfer, where the goal is to translate motion trajectories in one 3D environment to a semantically analogous location in another. Such a capacity would enable machines to perform analogical spatial…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Junho Kim , Eun Sun Lee , Gwangtak Bae , Seunggu Kang , Young Min Kim

We present a new approach to instill 4D dynamic object priors into learned 3D representations by unsupervised pre-training. We observe that dynamic movement of an object through an environment provides important cues about its objectness,…

计算机视觉与模式识别 · 计算机科学 2022-07-25 Yujin Chen , Matthias Nießner , Angela Dai

Few-shot detection is a major task in pattern recognition which seeks to localize objects using models trained with few labeled data. One of the mainstream few-shot methods is transfer learning which consists in pretraining a detection…

计算机视觉与模式识别 · 计算机科学 2024-02-15 Jie Mei , Mingyuan Jiu , Hichem Sahbi , Xiaoheng Jiang , Mingliang Xu

Most state-of-the-art methods of object detection suffer from poor generalization ability when the training and test data are from different domains, e.g., with different styles. To address this problem, previous methods mainly use holistic…

计算机视觉与模式识别 · 计算机科学 2021-02-16 Aming Wu , Yahong Han , Linchao Zhu , Yi Yang

We propose in this paper a tracking algorithm which is able to adapt itself to different scene contexts. A feature pool is used to compute the matching score between two detected objects. This feature pool includes 2D, 3D displacement…

计算机视觉与模式识别 · 计算机科学 2011-12-07 Duc Phu Chau , François Bremond , Monique Thonnat

Vehicular sensor data consists of multiple time-series arising from a number of sensors. Using such multi-sensor data we would like to detect occurrences of specific events that vehicles encounter, e.g., corresponding to particular…

机器学习 · 计算机科学 2014-08-19 Ehtesham Hassan , Gautam Shroff , Puneet Agarwal

DFST proposes an optimized visual tracking algorithm based on the real-time selection of locally and temporally discriminative features. A feature selection mechanism is embedded in the Adaptive colour Names (CN) tracking system that…

计算机视觉与模式识别 · 计算机科学 2016-09-08 Giorgio Roffo , Simone Melzi

Effective urban traffic management is vital for sustainable city development, relying on intelligent systems with machine learning tasks such as traffic flow prediction and travel time estimation. Traditional approaches usually focus on…

机器学习 · 计算机科学 2025-02-12 Chengkai Han , Jingyuan Wang , Yongyao Wang , Xie Yu , Hao Lin , Chao Li , Junjie Wu

This paper introduces the point-axis representation for oriented object detection, emphasizing its flexibility and geometrically intuitive nature with two key components: points and axes. 1) Points delineate the spatial extent and contours…

计算机视觉与模式识别 · 计算机科学 2024-07-12 Zeyang Zhao , Qilong Xue , Yuhang He , Yifan Bai , Xing Wei , Yihong Gong

The points on the point clouds that can entirely outline the shape of the model are of critical importance, as they serve as the foundation for numerous point cloud processing tasks and are widely utilized in computer graphics and…

计算机视觉与模式识别 · 计算机科学 2026-04-23 Yuhe Zhang , Zhikun Tu , Zhi Li , Jian Gao , Bao Guo , Shunli Zhang