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Representing visual signals by coordinate-based deep fully-connected networks has been shown advantageous in fitting complex details and solving inverse problems than discrete grid-based representation. However, acquiring such a continuous…

Computer Vision and Pattern Recognition · Computer Science 2022-07-11 Peihao Wang , Zhiwen Fan , Tianlong Chen , Zhangyang Wang

Modelling individual objects in a scene as Neural Radiance Fields (NeRFs) provides an alternative geometric scene representation that may benefit downstream robotics tasks such as scene understanding and object manipulation. However, we…

Robotics · Computer Science 2022-10-10 Jad Abou-Chakra , Feras Dayoub , Niko Sünderhauf

Intensity diffraction tomography (IDT) refers to a class of optical microscopy techniques for imaging the 3D refractive index (RI) distribution of a sample from a set of 2D intensity-only measurements. The reconstruction of artifact-free RI…

Image and Video Processing · Electrical Eng. & Systems 2022-08-16 Renhao Liu , Yu Sun , Jiabei Zhu , Lei Tian , Ulugbek Kamilov

Using integral transforms to the end of lines detection in images with complex background, makes the detection a hard task needing additional processing to manage the detection. As an integral transform, the Scale Space Radon Transform…

Computer Vision and Pattern Recognition · Computer Science 2023-11-16 Aicha Baya Goumeidane , Djemel Ziou , Nafaa Nacereddine

Implicit Neural Representations (INRs) have emerged as promising surrogates for large 3D scientific simulations due to their ability to continuously model spatial and conditional fields, yet they face a critical fidelity-speed dilemma: deep…

Machine Learning · Computer Science 2026-03-25 Tianyu Xiong , Skylar Wurster , Han-Wei Shen

We introduce Recurrent All-Pairs Field Transforms (RAFT), a new deep network architecture for optical flow. RAFT extracts per-pixel features, builds multi-scale 4D correlation volumes for all pairs of pixels, and iteratively updates a flow…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Zachary Teed , Jia Deng

Implicit Neural Representations (INRs) are powerful to parameterize continuous signals in computer vision. However, almost all INRs methods are limited to low-level tasks, e.g., image/video compression, super-resolution, and image…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Yiran Song , Qianyu Zhou , Lizhuang Ma

Due to the robustness in sensing, radar has been highlighted, overcoming harsh weather conditions such as fog and heavy snow. In this paper, we present a novel radar-only place recognition that measures the similarity score by utilizing…

Robotics · Computer Science 2023-07-11 Hyesu Jang , Minwoo Jung , Ayoung Kim

3D reconstruction of a scene from Synthetic Aperture Radar (SAR) images mainly relies on interferometric measurements, which involve strict constraints on the acquisition process. These last years, progress in deep learning has…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Emile Barbier--Renard , Florence Tupin , Nicolas Trouvé , Loïc Denis

Implicit Neural Representation (INR) is an innovative approach for representing complex shapes or objects without explicitly defining their geometry or surface structure. Instead, INR represents objects as continuous functions. Previous…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Hanqiu Chen , Hang Yang , Stephen Fitzmeyer , Cong Hao

High-Fidelity 3D scene reconstruction plays a crucial role in autonomous driving by enabling novel data generation from existing datasets. This allows simulating safety-critical scenarios and augmenting training datasets without incurring…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Pou-Chun Kung , Skanda Harisha , Ram Vasudevan , Aline Eid , Katherine A. Skinner

Neural radiance fields (NeRFs) have emerged as an effective method for novel-view synthesis and 3D scene reconstruction. However, conventional training methods require access to all training views during scene optimization. This assumption…

Computer Vision and Pattern Recognition · Computer Science 2023-09-07 Ryan Po , Zhengyang Dong , Alexander W. Bergman , Gordon Wetzstein

Indoor radar perception has seen rising interest due to affordable costs driven by emerging automotive imaging radar developments and the benefits of reduced privacy concerns and reliability under hazardous conditions (e.g., fire and…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Ryoma Yataka , Adriano Cardace , Pu Perry Wang , Petros Boufounos , Ryuhei Takahashi

Conventional active array radars often jointly design the transmit and receive beamforming for effectively suppressing interferences. To further promote the interference suppression performance, this paper introduces a reconfigurable…

Signal Processing · Electrical Eng. & Systems 2024-01-30 Shengyao Chen , Qi Feng , Longyao Ran , Feng Xi , Zhong Liu

Neural radiance fields (NeRFs) have become a ubiquitous tool for modeling scene appearance and geometry from multiview imagery. Recent work has also begun to explore how to use additional supervision from lidar or depth sensor measurements…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Anagh Malik , Parsa Mirdehghan , Sotiris Nousias , Kiriakos N. Kutulakos , David B. Lindell

Promising performance has been achieved for visual perception on the point cloud. However, the current methods typically rely on labour-extensive annotations on the scene scans. In this paper, we explore how synthetic models alleviate the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Runnan Chen , Xinge Zhu , Nenglun Chen , Dawei Wang , Wei Li , Yuexin Ma , Ruigang Yang , Wenping Wang

Computed Tomography (CT) is pivotal in industrial quality control and medical diagnostics. Sparse-view CT, offering reduced ionizing radiation, faces challenges due to its under-sampled nature, leading to ill-posed reconstruction problems.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Jiayang Shi , Junyi Zhu , Daniel M. Pelt , K. Joost Batenburg , Matthew B. Blaschko

Light field images capture multi-view scene information and play a crucial role in 3D scene reconstruction. However, their high-dimensional nature results in enormous data volumes, posing a significant challenge for efficient compression in…

Image and Video Processing · Electrical Eng. & Systems 2025-10-20 Gai Zhang , Xinfeng Zhang , Lv Tang , Hongyu An , Li Zhang , Qingming Huang

Radar is a low-cost and ubiquitous automotive sensor, but is limited by array resolution and sensitivity when performing direction of arrival analysis. Synthetic Aperture Radar (SAR) is a class of techniques to improve azimuth resolution…

Signal Processing · Electrical Eng. & Systems 2025-01-16 Leyla A. Kabuli , Griffin Foster

Foundation models pretrained on large-scale natural images are widely adapted to various cross-domain low-resource downstream tasks, benefiting from generalizable and transferable patterns captured by their representations. However, these…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Wenqiang Zu , Shenghao Xie , Hao Chen , Zhiqiang Chen , Liwen Hu , Yuanhao Xi , Yiming Liang , Junliang Ye , Bo Lei , Tiejun Huang , Guoqi Li , Lei Ma