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While three-dimensional (3D) building models play an increasingly pivotal role in many real-world applications, obtaining a compact representation of buildings remains an open problem. In this paper, we present a novel framework for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Zhaiyu Chen , Hugo Ledoux , Seyran Khademi , Liangliang Nan

This paper presents an end-to-end trainable fast scene text detector, named TextBoxes, which detects scene text with both high accuracy and efficiency in a single network forward pass, involving no post-process except for a standard…

Computer Vision and Pattern Recognition · Computer Science 2016-11-22 Minghui Liao , Baoguang Shi , Xiang Bai , Xinggang Wang , Wenyu Liu

Current state-of-the-art (SOTA) 3D object detection methods often require a large amount of 3D bounding box annotations for training. However, collecting such large-scale densely-supervised datasets is notoriously costly. To reduce the…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Chenqiang Gao , Chuandong Liu , Jun Shu , Fangcen Liu , Jiang Liu , Luyu Yang , Xinbo Gao , Deyu Meng

Point cloud based methods have produced promising results in areas such as 3D object detection in autonomous driving. However, most of the recent point cloud work focuses on single depth sensor data, whereas less work has been done on…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Walid Bekhtaoui , Ruhan Sa , Brian Teixeira , Vivek Singh , Klaus Kirchberg , Yao-jen Chang , Ankur Kapoor

In this paper, we present a novel approach for object recognition in real-time by employing multilevel feature analysis and demonstrate the practicality of adapting feature extraction into a Naive Bayesian classification framework that…

Computer Vision and Pattern Recognition · Computer Science 2017-10-31 Yang Cheng , Timeo Dubois

Text segmentation tasks have a very wide range of application values, such as image editing, style transfer, watermark removal, etc.However, existing public datasets are of poor quality of pixel-level labels that have been shown to be…

Computer Vision and Pattern Recognition · Computer Science 2023-08-28 Yibo Wang , Yunhu Ye , Yuanpeng Mao , Yanwei Yu , Yuanping Song

Accurate ground truth annotations are critical to supervised learning and evaluating the performance of autonomous vehicle systems. These vehicles are typically equipped with active sensors, such as LiDAR, which scan the environment in…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Alexandre Justo Miro , Ludvig af Klinteberg , Bogdan Timus , Aron Asefaw , Ajinkya Khoche , Thomas Gustafsson , Sina Sharif Mansouri , Masoud Daneshtalab

Detection and recognition of scene texts of arbitrary shapes remain a grand challenge due to the super-rich text shape variation in text line orientations, lengths, curvatures, etc. This paper presents a mask-guided multi-task network that…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 Chuhui Xue , Shijian Lu , Steven Hoi

Indoor scene modification has emerged as a prominent area within computer vision, particularly for its applications in Augmented Reality (AR) and Virtual Reality (VR). Traditional methods often rely on pre-existing object databases and…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Yiyang Luo , Ke Lin , Chao Gu

Bounding-box annotation form has been the most frequently used method for visual object localization tasks. However, bounding-box annotation relies on a large amount of precisely annotating bounding boxes, and it is expensive and laborious.…

Computer Vision and Pattern Recognition · Computer Science 2022-01-06 Xuehui Yu , Di Wu , Qixiang Ye , Jianbin Jiao , Zhenjun Han

Scene text recognition is a challenging task due to diverse variations of text instances in natural scene images. Conventional methods based on CNN-RNN-CTC or encoder-decoder with attention mechanism may not fully investigate stable and…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Ruijie Yan , Liangrui Peng , Shanyu Xiao , Gang Yao

We present Lang2Motion, a framework for language-guided point trajectory generation by aligning motion manifolds with joint embedding spaces. Unlike prior work focusing on human motion or video synthesis, we generate explicit trajectories…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Bishoy Galoaa , Xiangyu Bai , Sarah Ostadabbas

Object detection and semantic segmentation with the 3D lidar point cloud data require expensive annotation. We propose a data augmentation method that takes advantage of already annotated data multiple times. We propose an augmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Petr Šebek , Šimon Pokorný , Patrik Vacek , Tomáš Svoboda

More and more end-to-end text spotting methods based on Transformer architecture have demonstrated superior performance. These methods utilize a bipartite graph matching algorithm to perform one-to-one optimal matching between predicted…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Yu Xie , Qian Qiao , Jun Gao , Tianxiang Wu , Jiaqing Fan , Yue Zhang , Jielei Zhang , Huyang Sun

In this paper, we focus on improving binary 2D instance segmentation to assist humans in labeling ground truth datasets with polygons. Humans labeler just have to draw boxes around objects, and polygons are generated automatically. To be…

Computer Vision and Pattern Recognition · Computer Science 2022-08-25 Darshan Ganganna Ravindra , Laslo Dinges , Al-Hamadi Ayoub , Vasili Baranau

Automatic synthesis of high quality 3D shapes is an ongoing and challenging area of research. While several data-driven methods have been proposed that make use of neural networks to generate 3D shapes, none of them reach the level of…

Computer Vision and Pattern Recognition · Computer Science 2019-06-28 Isaak Lim , Moritz Ibing , Leif Kobbelt

Task-driven features learned by modern object detectors optimize end task loss yet often capture shortcut correlations that fail to reflect underlying annotation structure. Such representations limit transfer, interpretability, and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Meilun Zhou , Alina Zare

Previous scene text detection methods have progressed substantially over the past years. However, limited by the receptive field of CNNs and the simple representations like rectangle bounding box or quadrangle adopted to describe text,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-16 Chengquan Zhang , Borong Liang , Zuming Huang , Mengyi En , Junyu Han , Errui Ding , Xinghao Ding

This work considers supervised learning to count from images and their corresponding point annotations. Where density-based counting methods typically use the point annotations only to create Gaussian-density maps, which act as the…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Zenglin Shi , Pascal Mettes , Cees G. M. Snoek

Current one-stage methods for visual grounding encode the language query as one holistic sentence embedding before fusion with visual feature. Such a formulation does not treat each word of a query sentence on par when modeling language to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Heng Zhao , Joey Tianyi Zhou , Yew-Soon Ong