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Understanding the meaning of text in images of natural scenes like highway signs or store front emblems is particularly challenging if the text is foreshortened in the image or the letters are artistically distorted. We introduce a…

Computer Vision and Pattern Recognition · Computer Science 2020-05-29 Qitong Wang , Yi Zheng , Margrit Betke

This paper is devoted to the development and research of a new compression technology based on Weyl-Heisenberg bases (WH-technology) for modifying the JPEG compression standard and improving its characteristics. For this purpose, the paper…

Image and Video Processing · Electrical Eng. & Systems 2025-11-18 V. Asiryan , V. Volchkov , N. Papulovskaya

As the Portable Document Format (PDF) file format increases in popularity, research in analysing its structure for text extraction and analysis is necessary. Detecting headings can be a crucial component of classifying and extracting…

Information Retrieval · Computer Science 2018-09-06 Sahib Singh Budhiraja , Vijay Mago

Face detection is an essential step in many computer vision applications like surveillance, tracking, medical analysis, facial expression analysis etc. Several approaches have been made in the direction of face detection. Among them,…

Computer Vision and Pattern Recognition · Computer Science 2015-05-14 Anjith George , Anirban Dasgupta , Aurobinda Routray

This paper introduces a novel indexing and access method, called Feature- Based Adaptive Tolerance Tree (FATT), using wavelet transform is proposed to organize large image data sets efficiently and to support popular image access mechanisms…

Multimedia · Computer Science 2010-04-09 Dr. P. AnandhaKumar , V. Balamurugan

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

Deep hashing techniques have emerged as the predominant approach for efficient image retrieval. Traditionally, these methods utilize pre-trained convolutional neural networks (CNNs) such as AlexNet and VGG-16 as feature extractors. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Aymene Berriche , Mehdi Adjal Zakaria , Riyadh Baghdadi

Human detection is a popular issue and has been widely used in many applications. However, including complexities in computation, leading to the human detection system implemented hardly in real-time applications. This paper presents the…

Hardware Architecture · Computer Science 2022-05-06 Van-Cam Nguyen , Hong-Tuan-Dinh Le , Huu-Thuan Huynh

In this paper, we suggest a new neural network architecture for vanishing point detection in images. The key element is the use of the direct and transposed Fast Hough Transforms separated by convolutional layer blocks with standard…

Computer Vision and Pattern Recognition · Computer Science 2020-11-11 A. Sheshkus , A. Chirvonaya , D. Matveev , D. Nikolaev , V. L. Arlazarov

This paper proposes a new technique for automatic face recognition using integrated peaks of the Hough transformed significant blocks of the binary gradient image. In this approach firstly the gradient of an image is calculated and a…

Computer Vision and Pattern Recognition · Computer Science 2013-12-09 Arindam Kar , Debotosh Bhattacharjee , Dipak Kumar Basu , Mita Nasipuri , Mahantapas Kundu

The task of definition detection is important for scholarly papers, because papers often make use of technical terminology that may be unfamiliar to readers. Despite prior work on definition detection, current approaches are far from being…

Computation and Language · Computer Science 2020-10-13 Dongyeop Kang , Andrew Head , Risham Sidhu , Kyle Lo , Daniel S. Weld , Marti A. Hearst

The advancement of image editing tools has enabled malicious manipulation of sensitive document images, underscoring the need for robust document image forgery detection.Though forgery detectors for natural images have been extensively…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Kahim Wong , Jicheng Zhou , Haiwei Wu , Yain-Whar Si , Jiantao Zhou

Image retrieval is the process of searching and retrieving images from a database based on their visual content and features. Recently, much attention has been directed towards the retrieval of irregular patterns within industrial or…

Information Retrieval · Computer Science 2023-10-11 Jiajun Zhang , Georgina Cosma , Sarah Bugby , Jason Watkins

Stationary Wavelet Transform (SWT) is an efficient tool for edge analysis. This paper a new edge detection technique using SWT based Hidden Markov Model (WHMM) along with the expectation-maximization (EM) algorithm is proposed. The SWT…

Image and Video Processing · Electrical Eng. & Systems 2020-04-24 S. Anand , K. Nagajothi , K. Nithya

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

Change detection in heterogeneous remote sensing images is crucial for disaster damage assessment. Recent methods use homogenous transformation, which transforms the heterogeneous optical and SAR remote sensing images into the same feature…

Computer Vision and Pattern Recognition · Computer Science 2020-04-09 Xiao Jiang , Gang Li , Yu Liu , Xiao-Ping Zhang , You He

Fast Hough transform is a widely used algorithm in pattern recognition. The algorithm relies on approximating lines using a specific discrete line model called dyadic lines. The worst-case deviation of a dyadic line from the ideal line it…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Gleb Smirnov , Simon Karpenko

Global voting schemes based on the Hough transform (HT) have been widely used to robustly detect lines in images. However, since the votes do not take line connectivity into account, these methods do not deal well with cluttered images. In…

Computer Vision and Pattern Recognition · Computer Science 2015-03-19 Rui F. C. Guerreiro , Pedro M. Q. Aguiar

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

Arbitrary-shaped scene text detection is a challenging task due to the variety of text changes in font, size, color, and orientation. Most existing regression based methods resort to regress the masks or contour points of text regions to…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Yuchen Su , Zhiwen Shao , Yong Zhou , Fanrong Meng , Hancheng Zhu , Bing Liu , Rui Yao