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In spatially distributed multiuser antenna systems, the received signal contains multiple carrier-frequency offsets (CFOs) arising from mismatch between the oscillators of transmitters and receivers. This results in a time-varying rotation…

Information Theory · Computer Science 2007-07-13 Yuanning Yu , Athina P. Petropulu , H. Vincent Poor

The crucial step for localization is to match the current observation to the map. When the two sensor modalities are significantly different, matching becomes challenging. In this paper, we present an end-to-end deep phase correlation…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Zexi Chen , Xuecheng Xu , Yue Wang , Rong Xiong

This study proposes a centimeter-accurate positioning method that utilizes a Rao-Blackwellized particle filter (RBPF) without requiring integer ambiguity resolution in global navigation satellite system (GNSS) carrier phase measurements.…

Robotics · Computer Science 2025-06-16 Daiki Niimi , An Fujino , Taro Suzuki , Junichi Meguro

Contemporary monocular 6D pose estimation methods can only cope with a handful of object instances. This naturally hampers possible applications as, for instance, robots seamlessly integrated in everyday processes necessarily require the…

Computer Vision and Pattern Recognition · Computer Science 2020-09-14 Fabian Manhardt , Gu Wang , Benjamin Busam , Manuel Nickel , Sven Meier , Luca Minciullo , Xiangyang Ji , Nassir Navab

We propose a weakly-supervised cell tracking method that can train a convolutional neural network (CNN) by using only the annotation of "cell detection" (i.e., the coordinates of cell positions) without association information, in which…

Computer Vision and Pattern Recognition · Computer Science 2020-07-31 Kazuya Nishimura , Junya Hayashida , Chenyang Wang , Dai Fei Elmer Ker , Ryoma Bise

Driven by the growing demand for high-speed 3D measurement in advanced manufacturing, optical metrology algorithms must deliver high accuracy and robustness under dynamic conditions. Fringe projection profilometry (FPP) offers high…

Optics · Physics 2026-01-07 Xiangjun Kong , Qingkang Bao , Tibebe Yalew , Gerardo Adesso , Samanta Piano

This paper serves as a correction to the conference version. In this work, we explore uplink communication in cell-free (CF) massive multiple-input multiple-output (MaMIMO) systems, employing semi-blind transmission structures to mitigate…

Information Theory · Computer Science 2024-10-03 Zilu Zhao , Dirk Slock

We consider a network of single-antenna sensors that observe an unknown deterministic parameter. Each sensor applies a phase shift to the observation and the sensors simultaneously transmit the result to a multi-antenna fusion center (FC).…

Information Theory · Computer Science 2015-06-11 Feng Jiang , Jie Chen , A. Lee Swindlehurst

Reliable localization in prior maps is essential for autonomous navigation, particularly under adverse weather, where optical sensors may fail. We present CFEAR-TR, a teach-and-repeat localization pipeline using a single spinning radar,…

Robotics · Computer Science 2026-03-09 Maximilian Hilger , Daniel Adolfsson , Ralf Becker , Henrik Andreasson , Achim J. Lilienthal

Continual learning (CL) is a great endeavour in developing intelligent perception AI systems. However, the pioneer research has predominantly focus on single-task CL, which restricts the potential in multi-task and multimodal scenarios.…

Computer Vision and Pattern Recognition · Computer Science 2026-01-23 Bo Yuan , Danpei Zhao , Wentao Li , Tian Li , Zhiguo Jiang

Phase-retrieval techniques aim to recover the original signal from just the modulus of its Fourier transform, which is usually much easier to measure than its phase, but the standard iterative techniques tend to fail if only part of the…

Image and Video Processing · Electrical Eng. & Systems 2023-07-06 Giovanni Pellegrini , Jacopo Bertolotti

In the evolution of 6th Generation (6G) technology, the emergence of cell-free networking presents a paradigm shift, revolutionizing user experiences within densely deployed networks where distributed access points collaborate. However, the…

Signal Processing · Electrical Eng. & Systems 2024-08-15 Dieter Verbruggen , Hazem Sallouha , Sofie Pollin

We propose a weakly-supervised cell tracking method that can train a convolutional neural network (CNN) by using only the annotation of "cell detection" (i.e., the coordinates of cell positions) without association information, in which…

Computer Vision and Pattern Recognition · Computer Science 2020-07-17 Hiroki Tokunaga , Brian Kenji Iwana , Yuki Teramoto , Akihiko Yoshizawa , Ryoma Bise

This paper investigates the fronthaul compression problem in a user-centric cloud radio access network, in which single-antenna users are served by a central processor (CP) cooperatively via a cluster of remote radio heads (RRHs). To…

Information Theory · Computer Science 2024-03-15 Ruihua Qiao , Tao Jiang , Wei Yu

Nucleus segmentation is a challenging task due to the crowded distribution and blurry boundaries of nuclei. Recent approaches represent nuclei by means of polygons to differentiate between touching and overlapping nuclei and have…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Shengcong Chen , Changxing Ding , Minfeng Liu , Jun Cheng , Dacheng Tao

Performing the inference step of deep learning in resource constrained environments, such as embedded devices, is challenging. Success requires optimization at both software and hardware levels. Low precision arithmetic and specifically low…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Seyed H. F. Langroudi , Tej Pandit , Dhireesha Kudithipudi

Despite the superior performance of Deep Learning (DL) on numerous segmentation tasks, the DL-based approaches are notoriously overconfident about their prediction with highly polarized label probability. This is often not desirable for…

Image and Video Processing · Electrical Eng. & Systems 2021-12-14 Sungmin Hong , Anna K. Bonkhoff , Andrew Hoopes , Martin Bretzner , Markus D. Schirmer , Anne-Katrin Giese , Adrian V. Dalca , Polina Golland , Natalia S. Rost

We present a weakly supervised deep learning method to perform instance segmentation of cells present in microscopy images. Annotation of biomedical images in the lab can be scarce, incomplete, and inaccurate. This is of concern when…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Fidel A. Guerrero-Peña , Pedro D. Marrero Fernandez , Tsang Ing Ren , Alexandre Cunha

Despite the recent success of deep neural networks, it remains challenging to effectively model the long-tail class distribution in visual recognition tasks. To address this problem, we first investigate the performance bottleneck of the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Songyang Zhang , Zeming Li , Shipeng Yan , Xuming He , Jian Sun

Multiple carrier frequency offsets (CFOs) present in the uplink of orthogonal frequency division multiple access (OFDMA) systems adversely affect subcarrier orthogonality and impose a serious performance loss. In this paper, we propose the…

Information Theory · Computer Science 2016-11-18 Arman Farhang , Arslan Javaid Majid , Nicola Marchetti , Linda E. Doyle , Behrouz Farhang-Boroujeny
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