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This paper presents a neural network based semantic plane detection method utilizing polygon representations. The method can for example be used to solve room layout estimations tasks. The method is built on, combines and further develops…

计算机视觉与模式识别 · 计算机科学 2023-06-22 David Gillsjö , Gabrielle Flood , Kalle Åström

Following the presentation and proof of the hypothesis that image features are particularly perceived at points where the Fourier components are maximally in phase, the concept of phase congruency (PC) is introduced. Subsequently, a…

最优化与控制 · 数学 2017-05-08 Seyed Mohammad Mahdi Alavi , Yunyan Zhang

The ability to detect edges is a fundamental attribute necessary to truly capture visual concepts. In this paper, we prove that edges cannot be represented properly in the first convolutional layer of a neural network, and further show that…

计算机视觉与模式识别 · 计算机科学 2020-12-29 Minh Le , Subhradeep Kayal

Imaging and edge detection have been widely applied and played an important role in security checking and medical diagnosis. However, as we know, most edge detection based on ghost imaging system require a large measurement times and the…

图像与视频处理 · 电气工程与系统科学 2019-10-23 Cheng Zhou , Gangcheng Wang , Heyan Huang , Lijun Song , Kang Xue

Line segment detection plays a cornerstone role in computer vision tasks. Among numerous detection methods that have been recently proposed, the ones based on edge drawing attract increasing attention owing to their excellent detection…

计算机视觉与模式识别 · 计算机科学 2023-05-11 Xinyu Lin , Yingjie Zhou , Yipeng Liu , Ce Zhu

Edge detection is a cornerstone of image processing, yet existing methods often face critical limitations. Traditional deep learning edge detection methods require extensive training datasets and fine-tuning, while classical techniques…

计算机视觉与模式识别 · 计算机科学 2025-02-03 Arti Jain , Pradeep Singh

State-of-the-art detection systems are generally evaluated on their ability to exhaustively retrieve objects densely distributed in the image, across a wide variety of appearances and semantic categories. Orthogonal to this, many real-life…

计算机视觉与模式识别 · 计算机科学 2020-04-28 Amelie Royer , Christoph H. Lampert

We report experimentally and in theory on the detection of edge information in digital images using ultrafast spiking optical artificial neurons towards convolutional neural networks (CNNs). In tandem with traditional convolution…

图像与视频处理 · 电气工程与系统科学 2020-07-21 Joshua Robertson , Yahui Zhang , Matej Hejda , Andrew Adair , Julian Bueno , Shuiying Xiang , Antonio Hurtado

Automatic extraction methods typically assume that line segments are pronounced, thin, few and far between, do not cross each other, and are noise and clutter-free. Since these assumptions often fail in realistic scenarios, many line…

计算机视觉与模式识别 · 计算机科学 2014-11-18 Rui F. C. Guerreiro

This paper presents an edge-based defocus blur estimation method from a single defocused image. We first distinguish edges that lie at depth discontinuities (called depth edges, for which the blur estimate is ambiguous) from edges that lie…

计算机视觉与模式识别 · 计算机科学 2021-11-10 Ali Karaali , Naomi Harte , Claudio Rosito Jung

Deep learning methods have contributed substantially to the rapid advancement of medical image segmentation, the quality of which relies on the suitable design of loss functions. Popular loss functions, including the cross-entropy and dice…

图像与视频处理 · 电气工程与系统科学 2022-11-07 Yucong Lin , Jinhua Su , Yuhang Li , Yuhao Wei , Hanchao Yan , Saining Zhang , Jiaan Luo , Danni Ai , Hong Song , Jingfan Fan , Tianyu Fu , Deqiang Xiao , Feifei Wang , Jue Hou , Jian Yang

Edge detection has been one of the most difficult challenges in computer vision because of the difficulty in identifying the borders and edges from the real-world images including objects of varying kinds and sizes. Methods based on…

计算机视觉与模式识别 · 计算机科学 2024-12-25 Anjali Nambiyar Rajkumar Kannan

The existing traditional edge detection algorithms process a single pixel on an image at a time, thereby calculating a value which shows the edge magnitude of the pixel and the edge orientation. Most of these existing algorithms convert the…

计算机视觉与模式识别 · 计算机科学 2015-03-20 B. O Sadiq , S. M Sani , S Garba

Semantic edge detection (SED), which aims at jointly extracting edges as well as their category information, has far-reaching applications in domains such as semantic segmentation, object proposal generation, and object recognition. SED…

计算机视觉与模式识别 · 计算机科学 2021-10-28 Yun Liu , Ming-Ming Cheng , Deng-Ping Fan , Le Zhang , JiaWang Bian , Dacheng Tao

Canny Edge Detector (CED) is an edge detection operator commonly used by most Image Feature Extraction (IFE) Algorithms and Image Processing Applications. This operator involves the use of a multi-stage algorithm to detect edges in a wide…

分布式、并行与集群计算 · 计算机科学 2017-10-24 Hope Mogale

We develop a new edge detection algorithm that tackles two important issues in this long-standing vision problem: (1) holistic image training and prediction; and (2) multi-scale and multi-level feature learning. Our proposed method,…

计算机视觉与模式识别 · 计算机科学 2015-10-06 Saining Xie , Zhuowen Tu

With the widespread application of Light Detection and Ranging (LiDAR) technology in fields such as autonomous driving, robot navigation, and terrain mapping, the importance of edge detection in LiDAR images has become increasingly…

计算机视觉与模式识别 · 计算机科学 2024-06-17 Haowei Yang , Liyang Wang , Jingyu Zhang , Yu Cheng , Ao Xiang

A fundamental question for edge detection in noisy images is how faint can an edge be and still be detected. In this paper we offer a formalism to study this question and subsequently introduce computationally efficient multiscale edge…

计算机视觉与模式识别 · 计算机科学 2021-10-06 Nati Ofir , Meirav Galun , Sharon Alpert , Achi Brandt , Boaz Nadler , Ronen Basri

This paper focuses on camouflaged object detection (COD), which is a task to detect objects hidden in the background. Most of the current COD models aim to highlight the target object directly while outputting ambiguous camouflaged…

计算机视觉与模式识别 · 计算机科学 2021-11-01 Nobukatsu Kajiura , Hong Liu , Shin'ichi Satoh

Junctions play an important role in the characterization of local geometric structures in images, the detection of which is a longstanding and challenging task. Existing junction detectors usually focus on identifying the junction locations…

计算机视觉与模式识别 · 计算机科学 2017-11-06 Nan Xue , Gui-Song Xia , Xiang Bai , Liangpei Zhang , Weiming Shen