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Existing learning-based atmospheric particle-removal approaches such as those used for rainy and hazy images are designed with strong assumptions regarding spatial frequency, trajectory, and translucency. However, the removal of snow…

Computer Vision and Pattern Recognition · Computer Science 2018-05-09 Yun-Fu Liu , Da-Wei Jaw , Shih-Chia Huang , Jenq-Neng Hwang

This paper presents an algorithm to obtain an event-based video from noisy frames given by physics-based Monte Carlo path tracing over a synthetic 3D scene. Given the nature of dynamic vision sensor (DVS), rendering event-based video can be…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Yuta Tsuji , Tatsuya Yatagawa , Hiroyuki Kubo , Shigeo Morishima

Previous deep learning-based event denoising methods mostly suffer from poor interpretability and difficulty in real-time processing due to their complex architecture designs. In this paper, we propose window-based event denoising, which…

Computer Vision and Pattern Recognition · Computer Science 2024-02-15 Huachen Fang , Jinjian Wu , Qibin Hou , Weisheng Dong , Guangming Shi

Neuromorphic vision sensors, or event cameras, differ from conventional cameras in that they do not capture images at a specified rate. Instead, they asynchronously log local brightness changes at each pixel. As a result, event cameras only…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Paul Kielty , Cian Ryan , Mehdi Sefidgar Dilmaghani , Waseem Shariff , Joe Lemley , Peter Corcoran

The stark contrast in the design philosophy of an event camera makes it particularly ideal for operating under high-speed, high dynamic range and low-light conditions, where standard cameras underperform. Nonetheless, event cameras still…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Weng Fei Low , Gim Hee Lee

Snow degradations present formidable challenges to the advancement of computer vision tasks by the undesirable corruption in outdoor scenarios. While current deep learning-based desnowing approaches achieve success on synthetic benchmark…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Hongtao Wu , Yijun Yang , Angelica I Aviles-Rivero , Jingjing Ren , Sixiang Chen , Haoyu Chen , Lei Zhu

Event-based sensors (EBS) are a promising new technology for star tracking due to their low latency and power efficiency, but prior work has thus far been evaluated exclusively in simulation with simplified signal models. We propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Albert W Reed , Connor Hashemi , Dennis Melamed , Nitesh Menon , Keigo Hirakawa , Scott McCloskey

Event cameras capture sparse, asynchronous brightness changes which offer high temporal resolution, high dynamic range, low power consumption, and sparse data output. These advantages make them ideal for Space Situational Awareness,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Sami Arja , Alexandre Marcireau , Nicholas Owen Ralph , Saeed Afshar , Gregory Cohen

The event camera is a novel bio-inspired vision sensor. When the brightness change exceeds the preset threshold, the sensor generates events asynchronously. The number of valid events directly affects the performance of event-based tasks,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Xijie Xiang , Lin Zhu , Jianing Li , Yonghong Tian , Tiejun Huang

Marine snow, the floating particles in underwater images, severely degrades the visibility and performance of human and machine vision systems. This paper proposes a novel method to reduce the marine snow interference using deep learning…

Image and Video Processing · Electrical Eng. & Systems 2023-11-28 Fernando Galetto , Guang Deng

Event cameras provide a number of benefits over traditional cameras, such as the ability to track incredibly fast motions, high dynamic range, and low power consumption. However, their application into computer vision problems, many of…

Computer Vision and Pattern Recognition · Computer Science 2019-12-20 Alex Zihao Zhu , Ziyun Wang , Kaung Khant , Kostas Daniilidis

Event cameras are neuromorphic sensors that capture asynchronous and sparse event stream when per-pixel brightness changes. The state-of-the-art processing methods for event signals typically aggregate events into a frame or a grid.…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Beibei Yang , Weiling Li , Yan Fang

Rain-by-snow weather removal is a specialized task in weather-degraded image restoration aiming to eliminate coexisting rain streaks and snow particles. In this paper, we propose RSFormer, an efficient and effective Transformer that…

Computer Vision and Pattern Recognition · Computer Science 2023-10-30 Tao Gao , Yuanbo Wen , Kaihao Zhang , Peng Cheng , Ting Chen

This study presents a computer vision approach aimed at detecting snow on sidewalks and pavements to reduce winter-related fall injuries, especially among elderly and visually impaired individuals. Leveraging fine-tuned VGG-19 and ResNet50…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Ricardo de Deijn , Rajeev Bukralia

In recent years, dynamic vision sensors (DVS), also known as event-based cameras or neuromorphic sensors, have seen increased use due to various advantages over conventional frame-based cameras. Using principles inspired by the retina, its…

Computer Vision and Pattern Recognition · Computer Science 2018-03-15 Nicholas F. Y. Chen

Event-based motion deblurring has shown promising results by exploiting low-latency events. However, current approaches are limited in their practical usage, as they assume the same spatial resolution of inputs and specific blurriness…

Computer Vision and Pattern Recognition · Computer Science 2023-08-14 Xiang Zhang , Lei Yu , Wen Yang , Jianzhuang Liu , Gui-Song Xia

LiDARs have been widely adopted to modern self-driving vehicles, providing 3D information of the scene and surrounding objects. However, adverser weather conditions still pose significant challenges to LiDARs since point clouds captured…

Computer Vision and Pattern Recognition · Computer Science 2022-11-21 Ming-Yuan Yu , Ram Vasudevan , Matthew Johnson-Roberson

Dynamic obstacle avoidance on quadrotors requires low latency. A class of sensors that are particularly suitable for such scenarios are event cameras. In this paper, we present a deep learning -- based solution for dodging multiple dynamic…

Event cameras are a promising technology for activity recognition in dark environments due to their unique properties. However, real event camera datasets under low-lighting conditions are still scarce, which also limits the number of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Carlos Plou , Nerea Gallego , Alberto Sabater , Eduardo Montijano , Pablo Urcola , Luis Montesano , Ruben Martinez-Cantin , Ana C. Murillo

Motion deblurring is a highly ill-posed problem due to the loss of motion information in the blur degradation process. Since event cameras can capture apparent motion with a high temporal resolution, several attempts have explored the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Taewoo Kim , Jeongmin Lee , Lin Wang , Kuk-Jin Yoon