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Event-based cameras are bio-inspired sensors that asynchronously capture pixel intensity changes with microsecond latency, high temporal resolution, and high dynamic range, providing information on the spatiotemporal dynamics of a scene. We…

计算机视觉与模式识别 · 计算机科学 2026-01-01 Rodrigo Verschae , Ignacio Bugueno-Cordova

We present a Fourier-based machine learning technique that characterizes and detects facial emotions. The main challenging task in the development of machine learning (ML) models for classifying facial emotions is the detection of accurate…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Aishwarya Gouru , Shan Suthaharan

Event cameras, inspired by biological vision, are asynchronous sensors that detect changes in brightness, offering notable advantages in environments characterized by high-speed motion, low lighting, or wide dynamic range. These distinctive…

计算机视觉与模式识别 · 计算机科学 2024-12-02 Jiaqiang Zhang , Xianjia Yu , Ha Sier , Haizhou Zhang , Tomi Westerlund

Event cameras are a cutting-edge type of visual sensors that capture data by detecting brightness changes at the pixel level asynchronously. These cameras offer numerous benefits over conventional cameras, including high temporal…

多媒体 · 计算机科学 2024-11-12 Ahmadreza Sezavar , Catarina Brites , Joao Ascenso

Event cameras are bio-inspired sensors that capture per-pixel asynchronous intensity change rather than the synchronous absolute intensity frames captured by a classical camera sensor. Such cameras are ideal for robotics applications since…

计算机视觉与模式识别 · 计算机科学 2022-05-18 Ziwei Wang , Dingran Yuan , Yonhon Ng , Robert Mahony

Event cameras are rapidly emerging as powerful vision sensors for 3D reconstruction, uniquely capable of asynchronously capturing per-pixel brightness changes. Compared to traditional frame-based cameras, event cameras produce sparse yet…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Chuanzhi Xu , Haoxian Zhou , Langyi Chen , Haodong Chen , Zeke Zexi Hu , Zhicheng Lu , Ying Zhou , Vera Chung , Qiang Qu , Weidong Cai

In animal facilities, continuous surveillance of penguins is essential yet technically challenging due to their homogeneous visual characteristics, rapid and frequent posture changes, and substantial environmental noise such as water…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Kasumi Seko , Hiroki Kinoshita , Raj Rajeshwar Malinda , Hiroaki Kawashima

When a camera travels across a 3D world, only a fraction of pixel value changes; an event-based camera observes the change as sparse events. How can we utilize sparse events for efficient recovery of the camera pose? We show that we can…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Mana Masuda , Yusuke Sekikawa , Hideo Saito

This paper proposes the use of an event camera as a component of a vision system that enables counting of fast-moving objects - in this case, falling corn grains. These type of cameras transmit information about the change in brightness of…

计算机视觉与模式识别 · 计算机科学 2023-11-14 Kamil Bialik , Marcin Kowalczyk , Krzysztof Blachut , Tomasz Kryjak

Advances in computer vision as well as increasingly widespread video-based behavioral monitoring have great potential for transforming how we study animal cognition and behavior. However, there is still a fairly large gap between the…

Most of the artificial lights fluctuate in response to the grid's alternating current and exhibit subtle variations in terms of both intensity and spectrum, providing the potential to estimate the Electric Network Frequency (ENF) from…

图像与视频处理 · 电气工程与系统科学 2023-05-05 Lexuan Xu , Guang Hua , Haijian Zhang , Lei Yu , Ning Qiao

Machine learning applied to computer vision and signal processing is achieving results comparable to the human brain on specific tasks due to the great improvements brought by the deep neural networks (DNN). The majority of state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2020-06-30 José Augusto Stuchi , Levy Boccato , Romis Attux

Fingerspelling in sign language has been the means of communicating technical terms and proper nouns when they do not have dedicated sign language gestures. Automatic recognition of fingerspelling can help resolve communication barriers…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Kamala Gajurel , Cuncong Zhong , Guanghui Wang

We introduce a wearable single-eye emotion recognition device and a real-time approach to recognizing emotions from partial observations of an emotion that is robust to changes in lighting conditions. At the heart of our method is a…

图形学 · 计算机科学 2023-10-09 Haiwei Zhang , Jiqing Zhang , Bo Dong , Pieter Peers , Wenwei Wu , Xiaopeng Wei , Felix Heide , Xin Yang

Applications of an efficient emotion recognition system can be found in several domains such as medicine, driver fatigue surveillance, social robotics, and human-computer interaction. Appraising human emotional states, behaviors, and…

计算机视觉与模式识别 · 计算机科学 2024-03-26 Savinay Nagendra , Prapti Panigrahi

Classifying the behavior of humans or animals from videos is important in biomedical fields for understanding brain function and response to stimuli. Action recognition, classifying activities performed by one or more subjects in a trimmed…

计算机视觉与模式识别 · 计算机科学 2023-01-18 Michael Perez , Corey Toler-Franklin

Human Activity Recognition (HAR) has recently witnessed advancements with Transformer-based models. Especially, ActionFormer shows us a new perspectives for HAR in the sense that this approach gives us additional outputs which detect the…

机器学习 · 计算机科学 2025-05-28 Kunpeng Zhao , Asahi Miyazaki , Tsuyoshi Okita

Bio-inspired event cameras have recently attracted significant research due to their asynchronous and low-latency capabilities. These features provide a high dynamic range and significantly reduce motion blur. However, because of the…

计算机视觉与模式识别 · 计算机科学 2026-02-27 Aheli Saha , René Schuster , Didier Stricker

Image animation aims to animate a source image by using motion learned from a driving video. Current state-of-the-art methods typically use convolutional neural networks (CNNs) to predict motion information, such as motion keypoints and…

计算机视觉与模式识别 · 计算机科学 2022-09-29 Jiale Tao , Biao Wang , Tiezheng Ge , Yuning Jiang , Wen Li , Lixin Duan

Optical identification is often done with spatial or temporal visual pattern recognition and localization. Temporal pattern recognition, depending on the technology, involves a trade-off between communication frequency, range and accurate…

计算机视觉与模式识别 · 计算机科学 2024-05-08 Axel von Arnim , Jules Lecomte , Naima Elosegui Borras , Stanislaw Wozniak , Angeliki Pantazi