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Extracting moving objects from a video sequence and estimating the background of each individual image are fundamental issues in many practical applications such as visual surveillance, intelligent vehicle navigation, and traffic…

Computer Vision and Pattern Recognition · Computer Science 2016-02-01 Moein Shakeri , Hong Zhang

The successful development and optimisation of optically-driven micromachines will be greatly enhanced by the ability to computationally model the optical forces and torques applied to such devices. In principle, this can be done by…

Phase-sensitive coherent imaging exploits changes in the phases of backscattered light to observe tiny alterations of scattering structures or variations of the refractive index. But moving scatterers or a fluctuating refractive index…

Deformable objects often appear in unstructured configurations. Tracing deformable objects helps bringing them into extended states and facilitating the downstream manipulation tasks. Due to the requirements for object-specific modeling or…

Understanding human interaction with objects is an important research topic for embodied Artificial Intelligence and identifying the objects that humans are interacting with is a primary problem for interaction understanding. Existing…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Yanyan Shao , Qi Ye , Wenhan Luo , Kaihao Zhang , Jiming Chen

The random intensity distribution observed due to the propagation of a coherent beam of light through a scattering medium is known as a speckle pattern. The interaction of the speckles with a birefringent crystal, here, YVO4 results in the…

Optics · Physics 2021-08-11 Kapil K. Gangwar , Abhijit Roy , Maruthi M. Brundavanam

Imaging through dynamic scattering media, such as biological tissue, presents a fundamental challenge due to light scattering and the formation of speckle patterns. These patterns not only degrade image quality but also decorrelate rapidly,…

We study theoretically the mutual information between reflected and transmitted speckle patterns produced by wave scattering from disordered media. The mutual information between the two speckle images recorded on an array of N detection…

Disordered Systems and Neural Networks · Physics 2018-02-21 N. Fayard , A. Goetschy , R. Pierrat , R. Carminati

Invisibility cloaks have become one of the most outstanding developments among the wide range of applications in the field of metamaterials. So far, most efforts in invisibility science have been devoted to achieving practically realizable…

We present a novel object tracking scheme that can track rigid objects in real time. The approach uses subpixel-precise image edges to track objects with high accuracy. It can determine the object position, scale, and rotation with…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Tobias Böttger , Markus Ulrich , Carsten Steger

Invisibility cloaking in acoustic scattering via the approach of transformation optics is considered. The near-cloaks of both passive medium and active/radiating object are investigated. From a practical viewpoint, we are especially…

Analysis of PDEs · Mathematics 2012-11-12 Hongyu Liu

The movement of the eyes has been the subject of intensive research as a way to elucidate inner mechanisms of cognitive processes. A cognitive task that is rather frequent in our daily life is the visual search for hidden objects. Here we…

Neurons and Cognition · Quantitative Biology 2012-12-24 H. F. Credidio , E. N. Teixeira , S. D. S. Reis , A. A. Moreira , J. S. Andrade

Robots and autonomous vehicles should be aware of what happens in their surroundings. The segmentation and tracking of moving objects are essential for reliable path planning, including collision avoidance. We investigate this estimation…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Matthias Zeller , Daniel Casado Herraez , Jens Behley , Michael Heidingsfeld , Cyrill Stachniss

This paper studies the problem of detection and tracking of general objects with long-term dynamics, observed by a mobile robot moving in a large environment. A key problem is that due to the environment scale, it can only observe a subset…

Robotics · Computer Science 2018-01-31 Nils Bore , Johan Ekekrantz , Patric Jensfelt , John Folkesson

As we move through the world, the pattern of light projected on our eyes is complex and dynamic, yet we are still able to distinguish between moving and stationary objects. We propose that humans accomplish this by exploiting constraints…

Neurons and Cognition · Quantitative Biology 2025-05-14 Hope Lutwak , Bas Rokers , Eero P. Simoncelli

Tracking by detection, the dominant approach for online multi-object tracking, alternates between localization and association steps. As a result, it strongly depends on the quality of instantaneous observations, often failing when objects…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Pavel Tokmakov , Jie Li , Wolfram Burgard , Adrien Gaidon

Object motion and object appearance are commonly used information in multiple object tracking (MOT) applications, either for associating detections across frames in tracking-by-detection methods or direct track predictions for…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Xiaotong Chen , Seyed Mehdi Iranmanesh , Kuo-Chin Lien

Multiple object tracking faces several challenges that may be alleviated with trajectory information. Knowing the posterior locations of an object helps disambiguating and solving situations such as occlusions, re-identification, and…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Andreu Girbau , Xavier Giró-i-Nieto , Ignasi Rius , Ferran Marqués

We consider the problem of segmenting an image into superpixels in the context of $k$-means clustering, in which we wish to decompose an image into local, homogeneous regions corresponding to the underlying objects. Our novel approach…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Jianchao Zhang , Angelica I. Aviles-Rivero , Daniel Heydecker , Xiaosheng Zhuang , Raymond Chan , Carola-Bibiane Schönlieb

Multi-object tracking from RGB-D video sequences is a challenging problem due to the combination of changing viewpoints, motion, and occlusions over time. We observe that having the complete geometry of objects aids in their tracking, and…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Norman Müller , Yu-Shiang Wong , Niloy J. Mitra , Angela Dai , Matthias Nießner
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