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Detection of road curbs is an essential capability for autonomous driving. It can be used for autonomous vehicles to determine drivable areas on roads. Usually, road curbs are detected on-line using vehicle-mounted sensors, such as video…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Zhenhua Xu , Yuxiang Sun , Ming Liu

Recently, progress has been made in the supervised training of Convolutional Object Detectors (e.g. Faster R-CNN) for threat recognition in carry-on luggage using X-ray images. This is part of the Transportation Security Administration's…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 John B. Sigman , Gregory P. Spell , Kevin J Liang , Lawrence Carin

Purpose: CT image reconstruction techniques have two major categories: analytical reconstruction (AR) method and iterative reconstruction (IR) method. AR reconstructs images through analytical formulas, such as filtered backprojection (FBP)…

Medical Physics · Physics 2013-10-08 Liu Yang , Yu Gao , Sharon X. Qi , Hao Gao

We study the problem of reconstructing an image from information stored at contour locations. We show that high-quality reconstructions with high fidelity to the source image can be obtained from sparse input, e.g., comprising less than…

Computer Vision and Pattern Recognition · Computer Science 2018-04-11 Tali Dekel , Chuang Gan , Dilip Krishnan , Ce Liu , William T. Freeman

This work proposes a novel process of using pen tip and tail 3D trajectory for air signature. To acquire the trajectories we developed a new pen tool and a stereo camera was used. We proposed SliT-CNN, a novel 2D spatial-temporal…

Computer Vision and Pattern Recognition · Computer Science 2024-01-08 Saurabh Atreya , Maheswar Bora , Aritra Mukherjee , Abhijit Das

Drag-based image editing has emerged as a powerful paradigm for intuitive image manipulation. However, existing approaches predominantly rely on manipulating the latent space of generative models, leading to limited precision, delayed…

Computer Vision and Pattern Recognition · Computer Science 2025-09-08 Jingyi Lu , Kai Han

The comparison of current image data with existing 3D model data of a scene provides an efficient method to keep models up to date. In order to transfer information between 2D and 3D data, a preliminary co-registration is necessary. In this…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Sylvia Schmitz , Martin Weinmann , Boitumelo Ruf

For the last decades, the concern of producing convincing facial animation has garnered great interest, that has only been accelerating with the recent explosion of 3D content in both entertainment and professional activities. The use of…

Graphics · Computer Science 2020-10-13 Eloïse Berson , Catherine Soladié , Nicolas Stoiber

We propose an approach to simulate and render realistic water animation from a single still input photograph. We first segment the water surface, estimate rendering parameters, and compute water reflection textures with a combination of…

Graphics · Computer Science 2022-10-07 Ryusuke Sugimoto , Mingming He , Jing Liao , Pedro V. Sander

Atmospheric powered descent guidance can be solved by successive convexification; however, its onboard application is impeded by the sharp increase in computation caused by nonlinear aerodynamic forces. The problem has to be converted into…

Systems and Control · Electrical Eng. & Systems 2023-06-07 Yushu Chen , Guangwen Yang , Lu Wang , Qingzhong Gan , Haipeng Chen , Quanyong Xu

Addressing airport traffic jams is one of the most crucial and challenging tasks in the remote sensing field, especially for the busiest airports. Several solutions have been employed to address this problem depending on the airplane…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 W. T. Alshaibani , Mustafa Helvaci , Ibraheem Shayea , Hafizal Mohamad

Fourier ptychography is a recently explored imaging method for overcoming the diffraction limit of conventional cameras with applications in microscopy and yielding high-resolution images. In order to splice together low-resolution images…

Image and Video Processing · Electrical Eng. & Systems 2020-03-18 Yican Chen , Zhi Luo , Xia Wu , Huidong Yang , Bo Huang

Active contours Model (ACM) has been extensively used in computer vision and image processing. In recent studies, Convolutional Neural Networks (CNNs) have been combined with active contours replacing the user in the process of contour…

Computer Vision and Pattern Recognition · Computer Science 2021-05-19 Parastoo Akbari , Atefeh Ziaei , Hamed Azarnoush

Unmanned aerial vehicles (UAV) are evolving as an alternative tool to acquire land tenure data. UAVs can capture geospatial data at high quality and resolution in a cost-effective, transparent and flexible manner, from which visible land…

Computer Vision and Pattern Recognition · Computer Science 2017-09-07 Sophie Crommelinck , Michael Ying Yang , Mila Koeva , Markus Gerke , Rohan Bennett , George Vosselman

Identifying species of trees in aerial images is essential for land-use classification, plantation monitoring, and impact assessment of natural disasters. The manual identification of trees in aerial images is tedious, costly, and…

Computer Vision and Pattern Recognition · Computer Science 2020-08-31 Italos Estilon de Souza , Alexandre Xavier Falcão

With the technological advancements of aerial imagery and accurate 3d reconstruction of urban environments, more and more attention has been paid to the automated analyses of urban areas. In our work, we examine two important aspects that…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Boitumelo Ruf , Laurenz Thiel , Martin Weinmann

In recent years, image compression for high-level vision tasks has attracted considerable attention from researchers. Given that object information in images plays a far more crucial role in downstream tasks than background information,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-18 Chengjie Dai , Tiantian Song , Hui Tang , Fangdong Chen , Bowei Yang , Guanghua Song

Humans can intuitively decompose an image into a sequence of strokes to create a painting, yet existing methods for generating drawing processes are limited to specific data types and often rely on expensive human-annotated datasets. We…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Junjie Hu , Shuyong Gao , Qianyu Guo , Yan Wang , Qishan Wang , Yuang Feng , Wenqiang Zhang

Background subtraction is a fundamental low-level processing task in numerous computer vision applications. The vast majority of algorithms process images on a pixel-by-pixel basis, where an independent decision is made for each pixel. A…

Computer Vision and Pattern Recognition · Computer Science 2013-03-19 Vikas Reddy , Conrad Sanderson , Brian C. Lovell

Encoding images as a series of high-level constructs, such as brush strokes or discrete shapes, can often be key to both human and machine understanding. In many cases, however, data is only available in pixel form. We present a method for…

Computer Vision and Pattern Recognition · Computer Science 2018-09-27 Kevin Frans , Chin-Yi Cheng