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This paper presents a robust filter called quaternion Hardy filter (QHF) for color image edge detection. The QHF can be capable of color edge feature enhancement and noise resistance. It is flexible to use QHF by selecting suitable…

计算机视觉与模式识别 · 计算机科学 2021-01-05 Wenshan Bi Dong Cheng Wankai Liu , Kit Ian Kou

Estimates of image gradients play a ubiquitous role in image segmentation and classification problems since gradients directly relate to the boundaries or the edges of a scene. This paper proposes an unified approach to gradient estimation…

计算机视觉与模式识别 · 计算机科学 2016-05-10 Anish Acharya , Uddipan Mukherjee , Charless Fowlkes

Line detection is a classic and essential problem in image processing, computer vision and machine intelligence. Line detection has many important applications, including image vectorization (e.g., document recognition and art design),…

计算机视觉与模式识别 · 计算机科学 2025-01-09 Liping Yang , Joshua Driscol , Ming Gong , Katie Slack , Wenbin Zhang , Shujie Wang , Catherine G. Potts

We propose a novel method for salient object detection in different images. Our method integrates spatial features for efficient and robust representation to capture meaningful information about the salient objects. We then train a…

计算机视觉与模式识别 · 计算机科学 2019-04-19 Abdullah J. Alzahrani , Hina Afridi

This publication presents methods for face detection, analysis and recognition: fast normalized cross-correlation (fast correlation coefficient) between multiple templates based face pre-detection method, method for detection of exact face…

计算机视觉与模式识别 · 计算机科学 2007-05-23 Vytautas Perlibakas

Combustion stabilization and enhancement of the flammability limits are mandatory objectives to improve nowadays combustion chambers. At this purpose, the use of an electric field in the flame region provides a solution which is, at the…

流体动力学 · 物理学 2017-12-13 M. Di Renzo , P. De Palma , M. D. de Tullio , G. Pascazio

In video based face recognition, face images are typically captured over multiple frames in uncontrolled conditions, where head pose, illumination, shadowing, motion blur and focus change over the sequence. Additionally, inaccuracies in…

计算机视觉与模式识别 · 计算机科学 2014-03-17 Yongkang Wong , Shaokang Chen , Sandra Mau , Conrad Sanderson , Brian C. Lovell

Combining the linear canonical transform and the Riesz transform, we introduce the linear canonical Riesz transform (for short, LCRT), which is further proved to be a linear canonical multiplier. Using this LCRT multiplier, we conduct…

泛函分析 · 数学 2025-03-17 Shuhui Yang , Zunwei Fu , Dachun Yang , Yan Lin , Zhen Li

In this work the method of masks, creating and using of inverted image masks, together with binary operation of image data are used in edge detection of binary images, monochrome images, which yields about 300 times faster than ordinary…

计算机视觉与模式识别 · 计算机科学 2014-01-22 Ayman M Bahaa-Eldeen , Abdel-Moneim A. Wahdan , Hani M. K. Mahdi

Edge detection is a critical component of many vision systems, including object detectors and image segmentation algorithms. Patches of edges exhibit well-known forms of local structure, such as straight lines or T-junctions. In this paper…

计算机视觉与模式识别 · 计算机科学 2014-11-26 Piotr Dollár , C. Lawrence Zitnick

In recent years, compact and efficient scene understanding representations have gained popularity in increasing situational awareness and autonomy of robotic systems. In this work, we illustrate the concept of a panoptic edge segmentation…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Yang Zhou , Giuseppe Loianno

Lung cancer (LC) ranks among the most frequently diagnosed cancers and is one of the most common causes of death for men and women worldwide. Computed Tomography (CT) images are the most preferred diagnosis method because of their low cost…

图像与视频处理 · 电气工程与系统科学 2025-08-11 Mobarak Abumohsen , Enrique Costa-Montenegro , Silvia García-Méndez , Amani Yousef Owda , Majdi Owda

Edge detection is a long-standing problem in computer vision. Despite the efficiency of existing algorithms, their performance, however, rely heavily on the pre-trained weights of the backbone network on the ImageNet dataset. The use of…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Chenguang Liu , Chisheng Wang , Feifei Dong , Xiayang Xiao , Xin Su , Chuanhua Zhu , Dejin Zhang , Qingquan Li

While adaptive optical systems are able to remove moderate wavefront distortions in scintillated optical beams, phase singularities that appear in strongly scintillated beams can severely degrade the performance of such an adaptive optical…

光学 · 物理学 2009-11-13 Mingzhou Chen , Filippus S. Roux , Jan C. Olivier

This paper proposes a new machine learning based system for forest fire earlier detection in a low-cost and accurate manner. Accordingly, it is aimed to bring a new and definite perspective to visual detection in forest fires. A drone is…

机器人学 · 计算机科学 2021-01-26 Ayşegül Yanık , Mehmet Serdar Güzel , Mertkan Yanık , Erkan Bostancı

Lung cancer is one of the death threatening diseases among human beings. Early and accurate detection of lung cancer can increase the survival rate from lung cancer. Computed Tomography (CT) images are commonly used for detecting the lung…

机器学习 · 统计学 2019-11-26 Md Rashidul Hasan , Muntasir Al Kabir

Traditional ship detection methods primarily rely on single-modal approaches, such as visible or infrared images, which limit their application in complex scenarios involving varying lighting conditions and heavy fog. To address this issue,…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Yanyin Guo , Runxuan An , Junwei Li , Zhiyuan Zhang

Edge detection is crucial in medical image processing, enabling precise extraction of structural information to support lesion identification and image analysis. Traditional edge detection models typically rely on complex Convolutional…

计算机视觉与模式识别 · 计算机科学 2024-08-09 Fuzhang Li , Chuan Lin

We demonstrate the opportunities of first-principles density functional theory (DFT) calculations for the development of new metallurgical refining processes. As such, a methodology based on DFT calculations is developed to discover new…

材料科学 · 物理学 2024-03-05 Michiel J. Van Setten , Annelies Malfliet , Geoffroy Hautier , Bart Blanpain

The capability to detect boulders on the surface of small bodies is beneficial for vision-based applications such as navigation and hazard detection during critical operations. This task is challenging due to the wide assortment of…

计算机视觉与模式识别 · 计算机科学 2022-10-31 Mattia Pugliatti , Francesco Topputo