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3D microscopy is key in the investigation of diverse biological systems, and the ever increasing availability of large datasets demands automatic cell identification methods that not only are accurate, but also can imply the uncertainty in…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Alvaro Gomariz , Tiziano Portenier , César Nombela-Arrieta , Orcun Goksel

Image retrieval targets to find images from a database that are visually similar to the query image. Two-stage methods following retrieve-and-rerank paradigm have achieved excellent performance, but their separate local and global modules…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Yunquan Zhu , Xinkai Gao , Bo Ke , Ruizhi Qiao , Xing Sun

Semantic segmentation has been continuously investigated in the last ten years, and majority of the established technologies are based on supervised models. In recent years, image-level weakly supervised semantic segmentation (WSSS),…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Xiangrong Zhang , Zelin Peng , Peng Zhu , Tianyang Zhang , Chen Li , Huiyu Zhou , Licheng Jiao

We propose a computationally efficient and high-performance classification algorithm by incorporating class structural information in analysis dictionary learning. To achieve more consistent classification, we associate a class…

Computer Vision and Pattern Recognition · Computer Science 2018-05-03 Wen Tang , Ashkan Panahi , Hamid Krim , Liyi Dai

Convolutional neural networks trained using manually generated labels are commonly used for semantic or instance segmentation. In precision agriculture, automated flower detection methods use supervised models and post-processing techniques…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Abubakar Siddique , Amy Tabb , Henry Medeiros

We propose a novel method for semantic segmentation, the task of labeling each pixel in an image with a semantic class. Our method combines the advantages of the two main competing paradigms. Methods based on region classification offer…

Computer Vision and Pattern Recognition · Computer Science 2016-07-27 Holger Caesar , Jasper Uijlings , Vittorio Ferrari

We consider the problem of using a factor model we call {\em spike-and-slab sparse coding} (S3C) to learn features for a classification task. The S3C model resembles both the spike-and-slab RBM and sparse coding. Since exact inference in…

Machine Learning · Statistics 2012-04-05 Ian J. Goodfellow , Aaron Courville , Yoshua Bengio

Weakly supervised semantic segmentation (WSSS) aims to produce pixel-wise class predictions with only image-level labels for training. To this end, previous methods adopt the common pipeline: they generate pseudo masks from class activation…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Sungpil Kho , Pilhyeon Lee , Wonyoung Lee , Minsong Ki , Hyeran Byun

Reducing the use of agrochemicals is an important component towards sustainable agriculture. Robots that can perform targeted weed control offer the potential to contribute to this goal, for example, through specialized weeding actions such…

Computer Vision and Pattern Recognition · Computer Science 2018-06-12 Philipp Lottes , Jens Behley , Andres Milioto , Cyrill Stachniss

We present a dictionary learning approach to compensate for the transformation of faces due to changes in view point, illumination, resolution, etc. The key idea of our approach is to force domain-invariant sparse coding, i.e., design a…

Computer Vision and Pattern Recognition · Computer Science 2015-09-15 Qiang Qiu , Rama Chellappa

Recently, considerable research efforts have been devoted to the design of methods to learn from data overcomplete dictionaries for sparse coding. However, learned dictionaries require the solution of an optimization problem for coding new…

Machine Learning · Computer Science 2010-11-17 Curzio Basso , Matteo Santoro , Alessandro Verri , Silvia Villa

Supervised contour detection methods usually require many labeled training images to obtain satisfactory performance. However, a large set of annotated data might be unavailable or extremely labor intensive. In this paper, we investigate…

Computer Vision and Pattern Recognition · Computer Science 2016-05-18 Zizhao Zhang , Fuyong Xing , Xiaoshuang Shi , Lin Yang

The sparse coding algorithm has served as a model for early processing in mammalian vision. It has been assumed that the brain uses sparse coding to exploit statistical properties of the sensory stream. We hypothesize that sparse coding…

Computer Vision and Pattern Recognition · Computer Science 2021-01-28 Gerrit A. Ecke , Harald M. Papp , Hanspeter A. Mallot

In this paper, we address the problem of landmark-based visual place recognition. In the state-of-the-art method, accurate object proposal algorithms are first leveraged for generating a set of local regions containing particular landmarks…

Robotics · Computer Science 2018-08-24 Bo Yang , Jun Li , Xiaosu Xu , Hong Zhang

System identification refers to estimation of process parameters and is a necessity in control theory. Physical systems usually have varying parameters. For such processes, accurate identification is particularly important. Online…

Other Computer Science · Computer Science 2008-11-04 Deepyaman Maiti , Ayan Acharya , Amit Konar

Spatial variability has been observed in many geo-phenomena including climatic zones, USDA plant hardiness zones, and terrestrial habitat types (e.g., forest, grasslands, wetlands, and deserts). However, current deep learning methods follow…

Computer Vision and Pattern Recognition · Computer Science 2020-11-19 Jayant Gupta , Yiqun Xie , Shashi Shekhar

Given two multi-temporal aerial images, semantic change detection aims to locate the land-cover variations and identify their change types with pixel-wise boundaries. This problem is vital in many earth vision related tasks, such as precise…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Kunping Yang , Gui-Song Xia , Zicheng Liu , Bo Du , Wen Yang , Marcello Pelillo , Liangpei Zhang

Incorporating multi-scale features in fully convolutional neural networks (FCNs) has been a key element to achieving state-of-the-art performance on semantic image segmentation. One common way to extract multi-scale features is to feed…

Computer Vision and Pattern Recognition · Computer Science 2016-06-03 Liang-Chieh Chen , Yi Yang , Jiang Wang , Wei Xu , Alan L. Yuille

Naturally, fine-grained recognition, e.g., vehicle identification or bird classification, has specific hierarchical labels, where fine categories are always harder to be classified than coarse categories. However, most of the recent deep…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Xinjie Li , Chun Yang , Songlu Chen , Chao Zhu , Xu-Cheng Yin

Sparse coding has shown its power as an effective data representation method. However, up to now, all the sparse coding approaches are limited within the single domain learning problem. In this paper, we extend the sparse coding to cross…

Computer Vision and Pattern Recognition · Computer Science 2013-11-28 Jim Jing-Yan Wang