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We aim to detect all instances of a category in an image and, for each instance, mark the pixels that belong to it. We call this task Simultaneous Detection and Segmentation (SDS). Unlike classical bounding box detection, SDS requires a…

Computer Vision and Pattern Recognition · Computer Science 2014-07-08 Bharath Hariharan , Pablo Arbeláez , Ross Girshick , Jitendra Malik

We present a method that detects boundaries of parts in 3D shapes represented as point clouds. Our method is based on a graph convolutional network architecture that outputs a probability for a point to lie in an area that separates two or…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Marios Loizou , Melinos Averkiou , Evangelos Kalogerakis

In arbitrary shape text detection, locating accurate text boundaries is challenging and non-trivial. Existing methods often suffer from indirect text boundary modeling or complex post-processing. In this paper, we systematically present a…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Shi-Xue Zhang , Chun Yang , Xiaobin Zhu , Xu-Cheng Yin

In this paper, we formulate a simple algorithm that detects contours around a region of interest in an image. After an initial smoothing, the method is based on viewing an image as a topographic surface and finding convex and/or concave…

Image and Video Processing · Electrical Eng. & Systems 2019-05-31 Victor Churchill

During the last years, the emerging field of Augmented & Virtual Reality (AR-VR) has seen tremendousgrowth. At the same time there is a trend to develop low cost high-quality AR systems where computing poweris in demand. Feature points are…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Dimitrios Chamzas , Constantinos Chamzas , Konstantinos Moustakas

We propose MONet, a convolutional neural network that jointly detects motion boundaries (MBs) and occlusion regions (Occs) in video both forward and backward in time. Detection is difficult because optical flow is discontinuous along MBs…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Hannah Halin Kim , Shuzhi Yu , Carlo Tomasi

This is a review paper of traditional approaches for edge, corner, and boundary detection methods. There are many real-world applications of edge, corner, and boundary detection methods. For instance, in medical image analysis, edge…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Sai Pavan Tadem

Recently, state-of-the-art results have been achieved in semantic segmentation using fully convolutional networks (FCNs). Most of these networks employ encoder-decoder style architecture similar to U-Net and are trained with images and the…

Computer Vision and Pattern Recognition · Computer Science 2019-01-28 Balamurali Murugesan , Kaushik Sarveswaran , Sharath M Shankaranarayana , Keerthi Ram , Mohanasankar Sivaprakasam

Shot boundary detection (SBD) is an important component of many video analysis tasks, such as action recognition, video indexing, summarization and editing. Previous work typically used a combination of low-level features like color…

Computer Vision and Pattern Recognition · Computer Science 2017-05-24 Michael Gygli

Most modern convolutional neural networks (CNNs) used for object recognition are built using the same principles: Alternating convolution and max-pooling layers followed by a small number of fully connected layers. We re-evaluate the state…

Machine Learning · Computer Science 2015-04-14 Jost Tobias Springenberg , Alexey Dosovitskiy , Thomas Brox , Martin Riedmiller

Magnetic resonance velocimetry (MRV) is a non-invasive experimental technique widely used in medicine and engineering to measure the velocity field of a fluid. These measurements are dense but have a low signal-to-noise ratio (SNR). The…

Fluid Dynamics · Physics 2021-07-19 Ushnish Sengupta , Alexandros Kontogiannis , Matthew P. Juniper

Many image processing tasks involve image-to-image mapping, which can be addressed well by fully convolutional networks (FCN) without any heavy preprocessing. Although empirically designing and training FCNs can achieve satisfactory…

Machine Learning · Computer Science 2019-01-25 Jianjie Lu , Kai-yu Tong

For tiny obstacle discovery in a monocular image, edge is a fundamental visual element. Nevertheless, because of various reasons, e.g., noise and similar color distribution with background, it is still difficult to detect the edges of tiny…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Feng Xue , Anlong Ming , Menghan Zhou , Yu Zhou

Multi-temporal hyperspectral images can be used to detect changed information, which has gradually attracted researchers' attention. However, traditional change detection algorithms have not deeply explored the relevance of spatial and…

Computer Vision and Pattern Recognition · Computer Science 2022-01-21 Zengfu Hou , Wei Li

Convolutional Neural Networks (CNN) are successfully used for various visual perception tasks including bounding box object detection, semantic segmentation, optical flow, depth estimation and visual SLAM. Generally these tasks are…

Computer Vision and Pattern Recognition · Computer Science 2019-01-15 Ganesh Sistu , Isabelle Leang , Senthil Yogamani

Segmentations are often necessary for the analysis of image data. They are used to identify different objects, for example cell nuclei, mitochondria, or complete cells in microscopic images. There might be features in the data, that cannot…

Computational Geometry · Computer Science 2016-05-31 Julia Portl , Heike Leitte

We study the problem of finding the one-dimensional structure in a given data set. In other words we consider ways to approximate a given measure (data) by curves. We consider an objective functional whose minimizers are a regularization of…

Analysis of PDEs · Mathematics 2016-08-31 Slav Kirov , Dejan Slepčev

The existing object classification techniques based on descriptive features rely on object alignment to compute the similarity of objects for classification. This paper replaces the necessity of object alignment through sorting of feature.…

Computer Vision and Pattern Recognition · Computer Science 2026-01-08 Bimal Kumar Ray

We introduce Ground-Fusion, a low-cost sensor fusion simultaneous localization and mapping (SLAM) system for ground vehicles. Our system features efficient initialization, effective sensor anomaly detection and handling, real-time dense…

Robotics · Computer Science 2024-02-23 Jie Yin , Ang Li , Wei Xi , Wenxian Yu , Danping Zou

We provide evidence for the existence of non-trivial unitary conformal boundary conditions for a three-dimensional free scalar field, which can be obtained via a coupling to the m'th unitary diagonal minimal model. For large m we can…

High Energy Physics - Theory · Physics 2022-03-24 Connor Behan , Lorenzo Di Pietro , Edoardo Lauria , Balt C. van Rees