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Light field saliency detection -- important due to utility in many vision tasks -- still lacks speed and can improve in accuracy. Due to the formulation of the saliency detection problem in light fields as a segmentation task or a…

计算机视觉与模式识别 · 计算机科学 2021-12-14 Sahan Hemachandra , Ranga Rodrigo , Chamira Edussooriya

Strong gravitational lensing gives access to the total mass distribution of galaxies. It can unveil a great deal of information about the lenses dark matter content when combined with the study of the lenses light profile. However,…

星系天体物理 · 物理学 2017-08-02 Judith Biernaux , Pierre Magain , Clementine Hauret

We extend a previous analysis of spatial correlation functions for classical electromagnetic vector fields near a perfectly conducting boundary [PRE, vol. 73, 036604 (2006)] to the case of an isotropic semi-infinite medium with planar…

光学 · 物理学 2009-11-13 Luk R. Arnaut

The spectral density function describes the second-order properties of a stationary stochastic process on $\mathbb{R}^d$. This paper considers the nonparametric estimation of the spectral density of a continuous-time stochastic process…

统计理论 · 数学 2023-02-07 Rafail Kartsioukas , Stilian Stoev , Tailen Hsing

This paper presents the initial stages in the development of a deep learning classifier for generalised Resident Space Object (RSO) characterisation that combines high-fidelity simulated light curves with transfer learning to improve the…

A methodology is proposed, which addresses the caveat that line-of-sight emission spectroscopy presents in that it cannot provide spatially resolved temperature measurements in nonhomogeneous temperature fields. The aim of this research is…

机器学习 · 计算机科学 2022-12-16 Ruiyuan Kang , Dimitrios C. Kyritsis , Panos Liatsis

We consider a wireless sensor network consisting of multiple nodes that are coordinated by a fusion center (FC) in order to estimate a common signal of interest. In addition to being coordinated, the sensors are also able to collaborate,…

信息论 · 计算机科学 2012-10-15 Swarnendu Kar , Pramod K. Varshney

Accurate and efficient environment representation is crucial for robotic applications such as motion planning, manipulation, and navigation. Signed distance functions (SDFs) have emerged as a powerful representation for encoding distance to…

机器人学 · 计算机科学 2026-04-01 Zhirui Dai , Tianxing Fan , Mani Amani , Jaemin Seo , Ki Myung Brian Lee , Hyondong Oh , Nikolay Atanasov

Salient object detection, which aims to identify and locate the most salient pixels or regions in images, has been attracting more and more interest due to its various real-world applications. However, this vision task is quite challenging,…

计算机视觉与模式识别 · 计算机科学 2018-04-18 Pingping Zhang , Wei Liu , Huchuan Lu , Chunhua Shen

Geometric navigation is nowadays a well-established field of robotics and the research focus is shifting towards higher-level scene understanding, such as Semantic Mapping. When a robot needs to interact with its environment, it must be…

机器人学 · 计算机科学 2023-11-23 Federico Rollo , Gennaro Raiola , Andrea Zunino , Nikolaos Tsagarakis , Arash Ajoudani

In order to anticipate dangerous events, like a collision, an agent needs to make long-term predictions. However, those are challenging due to uncertainties in internal and external variables and environment dynamics. A sensorimotor model…

机器人学 · 计算机科学 2012-10-04 Arturo Ribes , Jesús Cerquides , Yiannis Demiris , Ramón López de Mántaras

We propose a novel angular velocity estimation method to increase the robustness of Simultaneous Localization And Mapping (SLAM) algorithms against gyroscope saturations induced by aggressive motions. Field robotics expose robots to various…

Salient object detection (SOD), which aims to identify and locate the most salient pixels or regions in images, has been attracting more and more interest due to its various real-world applications. However, this vision task is quite…

计算机视觉与模式识别 · 计算机科学 2019-01-23 Pingping Zhang , Wei Liu , Huchuan Lu , Chunhua Shen

Robust and non-destructive material classification is a challenging but crucial first-step in numerous vision applications. We propose a physics-guided material classification framework that relies on thermal properties of the object. Our…

计算机视觉与模式识别 · 计算机科学 2023-04-04 Aniket Dashpute , Vishwanath Saragadam , Emma Alexander , Florian Willomitzer , Aggelos Katsaggelos , Ashok Veeraraghavan , Oliver Cossairt

We study cosmic variance in deep high redshift surveys and its influence on the determination of the luminosity function for high redshift galaxies. For several survey geometries relevant for HST and JWST instruments, we characterize the…

天体物理学 · 物理学 2020-07-28 M. Trenti , M. Stiavelli

Spectrum sensing is the major challenge in the cognitive radio (CR). We propose to learn local feature and use it as the prior knowledge to improve the detection performance. We define the local feature as the leading eigenvector derived…

信息论 · 计算机科学 2011-04-13 Peng Zhang , Robert Qiu

Steady-state visual evoked potential (SSVEP) is widely used in brain-computer interfaces (BCIs) due to its reliability. With the integration of augmented reality (AR), AR-SSVEP enables more intuitive interaction by embedding visual stimuli…

人机交互 · 计算机科学 2026-04-09 Beining Cao , Xiaowei Jiang , Charlie Li-Ting Tsai , Daniel Leong , Thomas Do , Chin-Teng Lin

Conventionally, human intuition defines vision as a modality of passive optical sensing, relying on ambient light to perceive the environment. However, active optical sensing, which involves emitting and receiving signals, offers unique…

机器人学 · 计算机科学 2026-02-27 Wei Gao , Jie Zhang , Mingle Zhao , Zhiyuan Zhang , Shu Kong , Maani Ghaffari , Dezhen Song , Cheng-Zhong Xu , Hui Kong

Applying compressive sensing (CS) allows for sub-Nyquist sampling in several application areas in 5G and beyond. This reduces the associated training, feedback, and computation overheads in many applications. However, the applicability of…

信号处理 · 电气工程与系统科学 2020-12-21 Mahmoud Nazzal , Mehmet Ali Aygul , Huseyin Arslan

The performance metrics of different centroiding algorithms at low light level conditions were optimized in the case of a Shack Hartmann Sensor (SHS) for efficient performance of the adaptive optics system. For short exposures and low…

天体物理仪器与方法 · 物理学 2010-01-18 Akondi Vyas , M. B. Roopashree , B. Raghavendra Prasad