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We propose a novel method, the adaptive local window, for improving level set segmentation technique. The window is estimated separately for each contour point, over iterations of the segmentation process, and for each individual object.…

Computer Vision and Pattern Recognition · Computer Science 2016-06-14 Assaf Hoogi , Christopher F. Beaulieu , Guilherme M. Cunha , Elhamy Heba , Claude B. Sirlin , Sandy Napel , Daniel L. Rubin

Active contour models have been widely used in image segmentation, and the level set method (LSM) is the most popular approach for solving the models, via implicitly representing the contour by a level set function. However, the LSM suffers…

Computer Vision and Pattern Recognition · Computer Science 2021-05-10 Jun Ma , Dong Wang , Xiao-Ping Wang , Xiaoping Yang

Prior work on 6-DoF object pose estimation has largely focused on instance-level processing, in which a textured CAD model is available for each object being detected. Category-level 6-DoF pose estimation represents an important step toward…

Computer Vision and Pattern Recognition · Computer Science 2022-05-13 Yunzhi Lin , Jonathan Tremblay , Stephen Tyree , Patricio A. Vela , Stan Birchfield

Predicting the value of a function $f$ at a new point given its values at old points is an ubiquitous scientific endeavor, somewhat less developed when $f$ produces multiple values that depend on one another, e.g. when it outputs…

Optimization and Control · Mathematics 2024-12-16 Simon Foucart

Object shape and pose estimation is a foundational robotics problem, supporting tasks from manipulation to scene understanding and navigation. We present a fast local solver for shape and pose estimation which requires only category-level…

Robotics · Computer Science 2026-03-05 Lorenzo Shaikewitz , Tim Nguyen , Luca Carlone

Recent works have introduced methods to estimate segmentation performance without ground truth, relying solely on neural network softmax outputs. These techniques hold potential for intuitive output quality control. However, such…

Image and Video Processing · Electrical Eng. & Systems 2024-08-30 Anna M. Wundram , Paul Fischer , Michael Muehlebach , Lisa M. Koch , Christian F. Baumgartner

This paper proposes a novel image set classification technique based on the concept of linear regression. Unlike most other approaches, the proposed technique does not involve any training or feature extraction. The gallery image sets are…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Uzair Nadeem , Syed Afaq Ali Shah , Mohammed Bennamoun , Roberto Togneri , Ferdous Sohel

Recent results in nonparametric regression show that for deep learning, i.e., for neural network estimates with many hidden layers, we are able to achieve good rates of convergence even in case of high-dimensional predictor variables,…

Statistics Theory · Mathematics 2019-12-12 Alina Braun , Michael Kohler , Adam Krzyzak

Deep learning provides a powerful new approach to many computer vision tasks. Height prediction from aerial images is one of those tasks that benefited greatly from the deployment of deep learning which replaced old multi-view geometry…

Computer Vision and Pattern Recognition · Computer Science 2021-11-15 Elhousni Mahdi , Zhang Ziming , Huang Xinming

3D shape analysis has been largely focused on traditional 3D representations of point clouds and meshes, but the discrete nature of these data makes the analysis susceptible to variations in input resolutions. Recent development of neural…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Huan Lei , Hongdong Li , Andreas Geiger , Anthony Dick

Suppose that we wish to estimate a finite-dimensional summary of one or more function-valued features of an underlying data-generating mechanism under a nonparametric model. One approach to estimation is by plugging in flexible estimates of…

Methodology · Statistics 2020-08-28 Hongxiang Qiu , Alex Luedtke , Marco Carone

Set prediction is about learning to predict a collection of unordered variables with unknown interrelations. Training such models with set losses imposes the structure of a metric space over sets. We focus on stochastic and underdefined…

Machine Learning · Computer Science 2021-02-23 David W. Zhang , Gertjan J. Burghouts , Cees G. M. Snoek

For regression models, most of existing specification tests can be categorized into the class of local smoothing tests and of global smoothing tests. Compared with global smoothing tests, local smoothing tests can only detect local…

Methodology · Statistics 2017-10-18 Lingzhu Li , Lixing Zhu

Touchable projection with structured light range cameras is a prolific medium for large interaction surfaces, affording multiple simultaneous users and simple, cheap setup. However robust touch detection in such projector-depth systems is…

Human-Computer Interaction · Computer Science 2018-12-31 Zhi Chai , Roy Shilkrot

In recent years, considerable progress has been made for the task of rigid object pose estimation from a single RGB-image, but achieving robustness to partial occlusions remains a challenging problem. Pose refinement via rendering has shown…

Computer Vision and Pattern Recognition · Computer Science 2020-05-15 Lucas Brynte , Fredrik Kahl

An usual problem in statistics consists in estimating the minimizer of a convex function. When we have to deal with large samples taking values in high dimensional spaces, stochastic gradient algorithms and their averaged versions are…

Statistics Theory · Mathematics 2022-01-12 Antoine Godichon-Baggioni

We present Spatial Lifting (SL), a novel methodology for dense prediction tasks. SL operates by lifting standard inputs, such as 2D images, into a higher-dimensional space and subsequently processing them using networks designed for that…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Mingzhi Xu , Yizhe Zhang

Kernel-based methods enjoy powerful generalization capabilities in handling a variety of learning tasks. When such methods are provided with sufficient training data, broadly-applicable classes of nonlinear functions can be approximated…

Machine Learning · Statistics 2017-12-29 Fatemeh Sheikholeslami , Dimitris Berberidis , Georgios B. Giannakis

3D object pose estimation is a challenging task. Previous works always require thousands of object images with annotated poses for learning the 3D pose correspondence, which is laborious and time-consuming for labeling. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Fengrui Tian , Yaoyao Liu , Adam Kortylewski , Yueqi Duan , Shaoyi Du , Alan Yuille , Angtian Wang

Indoor image features extraction is a fundamental problem in multiple fields such as image processing, pattern recognition, robotics and so on. Nevertheless, most of the existing feature extraction methods, which extract features based on…

Computer Vision and Pattern Recognition · Computer Science 2020-01-23 Chiranjibi Sitaula , Yong Xiang , Yushu Zhang , Xuequan Lu , Sunil Aryal
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