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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…

计算机视觉与模式识别 · 计算机科学 2016-05-18 Zizhao Zhang , Fuyong Xing , Xiaoshuang Shi , Lin Yang

Underwater surveys provide long-term data for informing management strategies, monitoring coral reef health, and estimating blue carbon stocks. Advances in broad-scale survey methods, such as robotic underwater vehicles, have increased the…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Scarlett Raine , Frederic Maire , Niko Suenderhauf , Tobias Fischer

Weakly-supervised learning is a paradigm for alleviating the scarcity of labeled data by leveraging lower-quality but larger-scale supervision signals. While existing work mainly focuses on utilizing a certain type of weak supervision, we…

机器学习 · 统计学 2019-10-11 Yivan Zhang , Nontawat Charoenphakdee , Masashi Sugiyama

We propose a novel algorithm for weakly supervised semantic segmentation based on image-level class labels only. In weakly supervised setting, it is commonly observed that trained model overly focuses on discriminative parts rather than the…

计算机视觉与模式识别 · 计算机科学 2018-01-09 Seunghoon Hong , Donghun Yeo , Suha Kwak , Honglak Lee , Bohyung Han

Weakly supervised learning of object detection is an important problem in image understanding that still does not have a satisfactory solution. In this paper, we address this problem by exploiting the power of deep convolutional neural…

计算机视觉与模式识别 · 计算机科学 2016-12-20 Hakan Bilen , Andrea Vedaldi

Although existing semantic segmentation approaches achieve impressive results, they still struggle to update their models incrementally as new categories are uncovered. Furthermore, pixel-by-pixel annotations are expensive and…

计算机视觉与模式识别 · 计算机科学 2022-04-04 Fabio Cermelli , Dario Fontanel , Antonio Tavera , Marco Ciccone , Barbara Caputo

Weakly supervised semantic segmentation receives much research attention since it alleviates the need to obtain a large amount of dense pixel-wise ground-truth annotations for the training images. Compared with other forms of weak…

计算机视觉与模式识别 · 计算机科学 2018-03-08 Tianyi Zhang , Guosheng Lin , Jianfei Cai , Tong Shen , Chunhua Shen , Alex C. Kot

We propose a weakly-supervised approach for conditional image generation of complex scenes where a user has fine control over objects appearing in the scene. We exploit sparse semantic maps to control object shapes and classes, as well as…

计算机视觉与模式识别 · 计算机科学 2020-11-23 Dario Pavllo , Aurelien Lucchi , Thomas Hofmann

Unsupervised anomaly detection tackles the problem of finding anomalies inside datasets without the labels availability; since data tagging is typically hard or expensive to obtain, such approaches have seen huge applicability in recent…

机器学习 · 计算机科学 2021-12-01 Tommaso Barbariol , Gian Antonio Susto

Tropical forests represent the home of many species on the planet for flora and fauna, retaining billions of tons of carbon footprint, promoting clouds and rain formation, implying a crucial role in the global ecosystem, besides…

计算机视觉与模式识别 · 计算机科学 2022-08-24 Guilherme A. Pimenta , Fernanda B. J. R. Dallaqua , Alvaro Fazenda , Fabio A. Faria

Building a large image dataset with high-quality object masks for semantic segmentation is costly and time consuming. In this paper, we introduce a principled semi-supervised framework that only uses a small set of fully supervised images…

计算机视觉与模式识别 · 计算机科学 2020-02-27 Mostafa S. Ibrahim , Arash Vahdat , Mani Ranjbar , William G. Macready

Mobile robots operating in unknown urban environments encounter a wide range of complex terrains to which they must adapt their planned trajectory for safe and efficient navigation. Most existing approaches utilize supervised learning to…

机器人学 · 计算机科学 2021-11-05 Jannik Zürn , Wolfram Burgard , Abhinav Valada

Manifold learning approaches seek the intrinsic, low-dimensional data structure within a high-dimensional space. Mainstream manifold learning algorithms, such as Isomap, UMAP, $t$-SNE, Diffusion Map, and Laplacian Eigenmaps do not use data…

机器学习 · 统计学 2023-07-04 Jake S. Rhodes

Classifying stars, galaxies, and quasars is essential for understanding cosmic structure and evolution; however, the vast data from modern surveys make manual classification impractical, while supervised learning methods remain constrained…

星系天体物理 · 物理学 2025-09-09 Vahid Asadi , Hosein Haghi , Akram Hasani Zonoozi

Accurately estimating forest biomass is crucial for global carbon cycle modelling and climate change mitigation. Tree height, a key factor in biomass calculations, can be measured using Synthetic Aperture Radar (SAR) technology. This study…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Grace Colverd , Jumpei Takami , Laura Schade , Karol Bot , Joseph A. Gallego-Mejia

As machine learning models continue to increase in complexity, collecting large hand-labeled training sets has become one of the biggest roadblocks in practice. Instead, weaker forms of supervision that provide noisier but cheaper labels…

Competitive point cloud semantic segmentation results usually rely on a large amount of labeled data. However, data annotation is a time-consuming and labor-intensive task, particularly for three-dimensional point cloud data. Thus,…

计算机视觉与模式识别 · 计算机科学 2021-05-06 Puzuo Wang , Wei Yao

Image-level weakly-supervised semantic segmentation (WSSS) reduces the usually vast data annotation cost by surrogate segmentation masks during training. The typical approach involves training an image classification network using global…

计算机视觉与模式识别 · 计算机科学 2024-06-10 Arvi Jonnarth , Yushan Zhang , Michael Felsberg

Standard supervised learning procedures are validated against a test set that is assumed to have come from the same distribution as the training data. However, in many problems, the test data may have come from a different distribution. We…

机器学习 · 统计学 2019-08-28 Tim Coleman , Kimberly Kaufeld , Mary Frances Dorn , Lucas Mentch

In the last few years, deep learning classifiers have shown promising results in image-based medical diagnosis. However, interpreting the outputs of these models remains a challenge. In cancer diagnosis, interpretability can be achieved by…

计算机视觉与模式识别 · 计算机科学 2021-06-16 Kangning Liu , Yiqiu Shen , Nan Wu , Jakub Chłędowski , Carlos Fernandez-Granda , Krzysztof J. Geras