Results 11 to 20 of about 1,992 (180)
Screen recapture detection based on color-texture analysis of document boundary regions
Компьютерная оптика, 2023 This paper examines a presentation attack detection when a document recaptured from a screen is presented instead of the original document. We propose an algorithm based on analyzing a moiré pattern within document boundary regions as a distinctive ...
I.A. Kunina, A.V. Sher, D.P. Nikolaev
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Analyzing Deviations of Dyadic Lines in Fast Hough Transform
CoRR, 2023 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 used to construct grows as $O(log(n))$, where $n$ is the linear size of the image. But few lines actually reach the
Gleb Smirnov, Simon M. Karpenko
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A document skew detection method using fast Hough transform [PDF]
Twelfth International Conference on Machine Vision (ICMV 2019), 2020 The majority of document image analysis systems use a document skew detection algorithm to simplify all its further processing stages. A huge amount of such algorithms based on Hough transform (HT) analysis has already been proposed. Despite this, we managed to find only one work where the Fast Hough Transform (FHT) usage was suggested to solve the ...
Pavel Bezmaternykh, Dmitry P. Nikolaev
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Vanishing point detection with direct and transposed fast Hough transform inside the neural network
Компьютерная оптика, 2020 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 activation functions.
A. Sheshkus +4 more
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Fast Planar Detection System Using a GPU-Based 3D Hough Transform for LiDAR Point Clouds
Applied Sciences, 2020 Plane extraction is regarded as a necessary function that supports judgment basis in many applications, including semantic digital map reconstruction and path planning for unmanned ground vehicles.
Yifei Tian +5 more
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MagHT: A Magnetic Hough Transform for Fast Indoor Place Recognition
2023 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2023 This article proposes a novel indoor magnetic field-based place recognition algorithm that is accurate and fast to compute. For that, we modified the generalized ''Hough Transform'' to process magnetic data (MagHT). It takes as input a sequence of magnetic measures whose relative positions are recovered by an odometry system and recognizes the places ...
Abdul Raouf, Iad +4 more
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Coal-rock interface identification scheme based on Hough transform
Gong-kuang zidonghua, 2015 A coal-rock interface identification scheme based on Hough transform was proposed according to characteristic of coal-rock image, namely boundary between coal seam and rock seam is significant and linear.
PENG Jing, LI Xinying, JIA Junxia
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IET Signal Processing, 2023 It is difficult for a receiver to intercept the signals from a radar system that can emit low probability of intercept (LPI) polyphase coded signals. The traditional Wigner Hough transform (WHT) algorithm requires a large amount of computation and takes ...
Jincheng Yang +3 more
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A Comparative Study of Automatic Localization Algorithms for Spherical Markers within 3D MRI Data
Brain Sciences, 2021 Localization of features and structures in images is an important task in medical image-processing. Characteristic structures and features are used in diagnostics and surgery planning for spatial adjustments of the volumetric data, including image ...
Christian Fiedler +6 more
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A NEW APPROACH OF DIGITAL BRIDGE SURFACE MODEL GENERATION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 Bridge areas present difficulties for orthophotos generation and to avoid “collapsed” bridges in the orthoimage, operator assistance is required to create the precise DBM (Digital Bridge Model), which is, subsequently, used for the orthoimage generation.
H. Ju
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