English
Related papers

Related papers: Approach for Document Detection by Contours and Co…

200 papers

Considering the imminent massification of digital books, it has become critical to facilitate searching collections through graphical patterns. Current strategies for document retrieval and pattern spotting in historical documents still…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Jose M. Saavedra , Crhistopher Stears , Marcelo Pizarro , Cristóbal Loyola , Luis Aros

Transformer-based object detectors (DETR) have shown significant performance across machine vision tasks, ultimately in object detection. This detector is based on a self-attention mechanism along with the transformer encoder-decoder…

Computer Vision and Pattern Recognition · Computer Science 2023-10-16 Zhao Ning Zou , Yuhang Zhang , Robert Wijaya

This paper proposes a novel approach to create an automated visual surveillance system which is very efficient in detecting and tracking moving objects in a video captured by moving camera without any apriori information about the captured…

Computer Vision and Pattern Recognition · Computer Science 2017-06-09 Kumar S. Ray , Soma Chakraborty

Object detection generally requires sliding-window classifiers in tradition or anchor box based predictions in modern deep learning approaches. However, either of these approaches requires tedious configurations in boxes. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2021-11-09 Wei Liu , Irtiza Hasan , Shengcai Liao

State-of-the-art object detection methods applied to satellite and drone imagery largely fail to identify small and dense objects. One reason is the high variability of content in the overhead imagery due to the terrestrial region captured…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Debojyoti Biswas , Jelena Tešić

With the ongoing popularization of online services, the digital document images have been used in various applications. Meanwhile, there have emerged some deep learning-based text editing algorithms which alter the textual information of an…

Multimedia · Computer Science 2021-09-13 Lin Zhao , Changsheng Chen , Jiwu Huang

We introduce Constellation, a dataset of 13K images suitable for research on detection of objects in dense urban streetscapes observed from high-elevation cameras, collected for a variety of temporal conditions. The dataset addresses the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-29 Mehmet Kerem Turkcan , Sanjeev Narasimhan , Chengbo Zang , Gyung Hyun Je , Bo Yu , Mahshid Ghasemi , Javad Ghaderi , Gil Zussman , Zoran Kostic

We consider travel time tomography problems involving detection of high contrast, discrete high velocity structures. This results in a discrete nonlinear inverse problem, for which traditional grid-based models and iterative linearized…

Data Analysis, Statistics and Probability · Physics 2017-07-07 Yenting Lin , Antonio Ortega

Video moment retrieval (VMR) identifies a specific moment in an untrimmed video for a given natural language query. This task is prone to suffer the weak alignment problem innate in video datasets. Due to the ambiguity, a query does not…

Computer Vision and Pattern Recognition · Computer Science 2024-10-02 Minjoon Jung , Youwon Jang , Seongho Choi , Joochan Kim , Jin-Hwa Kim , Byoung-Tak Zhang

We present a unifying framework to solve several computer vision problems with event cameras: motion, depth and optical flow estimation. The main idea of our framework is to find the point trajectories on the image plane that are best…

Computer Vision and Pattern Recognition · Computer Science 2019-01-21 Guillermo Gallego , Henri Rebecq , Davide Scaramuzza

Object detection is a fundamental problem in computer vision, aiming at locating and classifying objects in image. Although current devices can easily take very high-resolution images, current approaches of object detection seldom consider…

Computer Vision and Pattern Recognition · Computer Science 2023-03-03 Jinyan Liu , Jie Chen

In this paper, we present a novel approach for contour detection with Convolutional Neural Networks. A multi-scale CNN learning framework is designed to automatically learn the most relevant features for contour patch detection. Our method…

Computer Vision and Pattern Recognition · Computer Science 2017-05-10 Teck Wee Chua , Li Shen

Obstacle Detection is a central problem for any robotic system, and critical for autonomous systems that travel at high speeds in unpredictable environment. This is often achieved through scene depth estimation, by various means. When fast…

Robotics · Computer Science 2016-07-22 Michele Mancini , Gabriele Costante , Paolo Valigi , Thomas A. Ciarfuglia

Document Layout Analysis is crucial for real-world document understanding systems, but it encounters a challenging trade-off between speed and accuracy: multimodal methods leveraging both text and visual features achieve higher accuracy but…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Zhiyuan Zhao , Hengrui Kang , Bin Wang , Conghui He

Contour based scene text detection methods have rapidly developed recently, but still suffer from inaccurate frontend contour initialization, multi-stage error accumulation, or deficient local information aggregation. To tackle these…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Zhiwen Shao , Yuchen Su , Yong Zhou , Fanrong Meng , Hancheng Zhu , Bing Liu , Rui Yao

Multimodal document retrieval aims to identify and retrieve various forms of multimodal content, such as figures, tables, charts, and layout information from extensive documents. Despite its increasing popularity, there is a notable lack of…

Information Retrieval · Computer Science 2025-11-10 Kuicai Dong , Yujing Chang , Xin Deik Goh , Dexun Li , Ruiming Tang , Yong Liu

Document structure analysis (aka document layout analysis) is crucial for understanding the physical layout and logical structure of documents, with applications in information retrieval, document summarization, knowledge extraction, etc.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Jiawei Wang , Kai Hu , Zhuoyao Zhong , Lei Sun , Qiang Huo

In general, background subtraction-based methods are used to detect moving objects in visual tracking applications. In this paper, we employed a background subtraction-based scheme to detect the temporarily stationary objects. We proposed…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Deepak Ghimire , Joonwhoan Lee

Visual relation detection methods rely on object information extracted from RGB images such as 2D bounding boxes, feature maps, and predicted class probabilities. We argue that depth maps can additionally provide valuable information on…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Sahand Sharifzadeh , Sina Moayed Baharlou , Max Berrendorf , Rajat Koner , Volker Tresp

General-purpose ID, or travel, document image- and video-based verification systems have yet to achieve good enough performance to be considered a solved problem. There are several factors that negatively impact their performance, including…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Maxime Talarmain , Carlos Boned , Sanket Biswas , Oriol Ramos