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Convolutional Networks (ConvNets) have recently improved image recognition performance thanks to end-to-end learning of deep feed-forward models from raw pixels. Deep learning is a marked departure from the previous state of the art, the…

Computer Vision and Pattern Recognition · Computer Science 2015-07-24 Albert Gordo , Adrien Gaidon , Florent Perronnin

We propose an attentive local feature descriptor suitable for large-scale image retrieval, referred to as DELF (DEep Local Feature). The new feature is based on convolutional neural networks, which are trained only with image-level…

Computer Vision and Pattern Recognition · Computer Science 2018-02-06 Hyeonwoo Noh , Andre Araujo , Jack Sim , Tobias Weyand , Bohyung Han

In this paper, we address the task of aberration-aware depth-from-defocus (DfD), which takes account of spatially variant point spread functions (PSFs) of a real camera. To effectively obtain the spatially variant PSFs of a real camera…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Zhuofeng Wu , Yusuke Monno , Masatoshi Okutomi

In this project, we propose a novel approach for estimating depth from RGB images. Traditionally, most work uses a single RGB image to estimate depth, which is inherently difficult and generally results in poor performance, even with…

Computer Vision and Pattern Recognition · Computer Science 2017-05-04 Eric Cristofalo , Zijian Wang

The Depth from Defocus (DFD) imaging technique for measuring the size and number concentration of particles in a dispersed two-phase flow has up to now been restricted to relatively sparse particle densities and to identifying only…

Fluid Dynamics · Physics 2024-04-01 Rixin Xua , Zuojie Huanga , Wenchao Gonga , Wu Zhoua , Cameron Tropea

Deep convolutional neutral networks have achieved great success on image recognition tasks. Yet, it is non-trivial to transfer the state-of-the-art image recognition networks to videos as per-frame evaluation is too slow and unaffordable.…

Computer Vision and Pattern Recognition · Computer Science 2017-06-06 Xizhou Zhu , Yuwen Xiong , Jifeng Dai , Lu Yuan , Yichen Wei

Deep Convolutional Neural Networks (DCNNs) have recently shown state of the art performance in high level vision tasks, such as image classification and object detection. This work brings together methods from DCNNs and probabilistic…

Computer Vision and Pattern Recognition · Computer Science 2016-06-08 Liang-Chieh Chen , George Papandreou , Iasonas Kokkinos , Kevin Murphy , Alan L. Yuille

We present Deep Shape-from-Template (DeepSfT), a novel Deep Neural Network (DNN) method for solving real-time automatic registration and 3D reconstruction of a deformable object viewed in a single monocular image.DeepSfT advances the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 David Fuentes-Jimenez , David Casillas-Perez , Daniel Pizarro , Toby Collins , Adrien Bartoli

Monocular depth estimation and image deblurring are two fundamental tasks in computer vision, given their crucial role in understanding 3D scenes. Performing any of them by relying on a single image is an ill-posed problem. The recent…

Computer Vision and Pattern Recognition · Computer Science 2023-07-31 Saqib Nazir , Lorenzo Vaquero , Manuel Mucientes , Víctor M. Brea , Daniela Coltuc

Inverting visual representations within deep neural networks (DNNs) presents a challenging and important problem in the field of security and privacy for deep learning. The main goal is to invert the features of an unidentified target image…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Sai Qian Zhang , Ziyun Li , Chuan Guo , Saeed Mahloujifar , Deeksha Dangwal , Edward Suh , Barbara De Salvo , Chiao Liu

In this article, we tackle the problem of depth estimation from single monocular images. Compared with depth estimation using multiple images such as stereo depth perception, depth from monocular images is much more challenging. Prior work…

Computer Vision and Pattern Recognition · Computer Science 2016-11-17 Fayao Liu , Chunhua Shen , Guosheng Lin , Ian Reid

We propose a single-snapshot depth-from-defocus (DFD) reconstruction method for coded-aperture imaging that replaces hand-crafted priors with a learned diffusion prior used purely as regularization. Our optimization framework enforces…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Hodaka Kawachi , Jose Reinaldo Cunha Santos A. V. Silva Neto , Yasushi Yagi , Hajime Nagahara , Tomoya Nakamura

Deep learning architectures are showing great promise in various computer vision domains including image classification, object detection, event detection and action recognition. In this study, we investigate various aspects of…

Computer Vision and Pattern Recognition · Computer Science 2016-08-08 Hilal Ergun , Mustafa Sert

The performance of video prediction has been greatly boosted by advanced deep neural networks. However, most of the current methods suffer from large model sizes and require extra inputs, e.g., semantic/depth maps, for promising…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Xiaotao Hu , Zhewei Huang , Ailin Huang , Jun Xu , Shuchang Zhou

While deep neural networks (DNN) have become an effective computational tool, the prediction results are often criticized by the lack of interpretability, which is essential in many real-world applications such as health informatics.…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Mengnan Du , Ninghao Liu , Qingquan Song , Xia Hu

We aim to provide a general framework of for computational photography that recovers the real scene from imperfect images, via the Deep Nonparametric Convexified Filtering (DNCF). It is consists of a nonparametric deep network to resemble…

Computer Vision and Pattern Recognition · Computer Science 2023-09-15 Jianqiao Wangni

We propose a method for dense depth estimation from an event stream generated when sweeping the focal plane of the driving lens attached to an event camera. In this method, a depth map is inferred from an ``event focal stack'' composed of…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Kenta Horikawa , Mariko Isogawa , Hideo Saito , Shohei Mori

In recent years, the field of implicit neural representation has progressed significantly. Models such as neural radiance fields (NeRF), which uses relatively small neural networks, can represent high-quality scenes and achieve…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 David Dadon , Ohad Fried , Yacov Hel-Or

Convolutional Neural Network (CNN) is a very powerful approach to extract discriminative local descriptors for effective image search. Recent work adopts fine-tuned strategies to further improve the discriminative power of the descriptors.…

Computer Vision and Pattern Recognition · Computer Science 2017-11-28 Tuan Hoang , Thanh-Toan Do , Dang-Khoa Le Tan , Ngai-Man Cheung

Defocus blur arises in images that are captured with a shallow depth of field due to the use of a wide aperture. Correcting defocus blur is challenging because the blur is spatially varying and difficult to estimate. We propose an effective…

Image and Video Processing · Electrical Eng. & Systems 2020-07-20 Abdullah Abuolaim , Michael S. Brown