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Data augmentations are widely used in training medical image deep learning models to increase the diversity and size of sparse datasets. However, commonly used augmentation techniques can result in loss of clinically relevant information…

Image and Video Processing · Electrical Eng. & Systems 2024-04-18 Adrit Rao , Andrea Fisher , Ken Chang , John Christopher Panagides , Katherine McNamara , Joon-Young Lee , Oliver Aalami

Data augmentation is a common practice to help generalization in the procedure of deep model training. In the context of physiological time series classification, previous research has primarily focused on label-invariant data augmentation…

Machine Learning · Computer Science 2023-09-19 Peikun Guo , Huiyuan Yang , Akane Sano

The generalizability of machine learning (ML) models for wearable monitoring in stroke rehabilitation is often constrained by the limited scale and heterogeneity of available data. Data augmentation addresses this challenge by adding…

Machine Learning · Computer Science 2024-11-01 Aaron J. Hadley , Christopher L. Pulliam

In recent years, laser ultrasonic visualization testing (LUVT) has attracted much attention because of its ability to efficiently perform non-contact ultrasonic non-destructive testing.Despite many success reports of deep learning based…

Image and Video Processing · Electrical Eng. & Systems 2023-05-31 Miya Nakajima , Takahiro Saitoh , Tsuyoshi Kato

Freehand 3D ultrasound (US) has important clinical value due to its low cost and unrestricted field of view. Recently deep learning algorithms have removed its dependence on bulky and expensive external positioning devices. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-04 Mingyuan Luo , Xin Yang , Hongzhang Wang , Liwei Du , Dong Ni

Deep learning semantic segmentation algorithms can localise abnormalities or opacities from chest radiographs. However, the task of collecting and annotating training data is expensive and requires expertise which remains a bottleneck for…

Image and Video Processing · Electrical Eng. & Systems 2021-02-26 Jitesh Seth , Rohit Lokwani , Viraj Kulkarni , Aniruddha Pant , Amit Kharat

Data augmentation is an effective technique to improve the generalization of deep neural networks. However, previous data augmentation methods usually treat the augmented samples equally without considering their individual impacts on the…

Machine Learning · Computer Science 2021-03-17 Mingyang Yi , Lu Hou , Lifeng Shang , Xin Jiang , Qun Liu , Zhi-Ming Ma

Data augmentation has been widely used to improve deep neural networks in many research fields, such as computer vision. However, less work has been done in the context of text, partially due to its discrete nature and the complexity of…

Computation and Language · Computer Science 2021-01-12 Ping Yu , Ruiyi Zhang , Yang Zhao , Yizhe Zhang , Chunyuan Li , Changyou Chen

Leveraging wearable devices for motion reconstruction has emerged as an economical and viable technique. Certain methodologies employ sparse Inertial Measurement Units (IMUs) on the human body and harness data-driven strategies to model…

Computer Vision and Pattern Recognition · Computer Science 2024-01-12 Xueyuan Yang , Chao Yao , Xiaojuan Ban

Automated emotion recognition in speech is a long-standing problem. While early work on emotion recognition relied on hand-crafted features and simple classifiers, the field has now embraced end-to-end feature learning and classification…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-10 Ravi Shankar , Abdouh Harouna Kenfack , Arjun Somayazulu , Archana Venkataraman

Data augmentation is a ubiquitous technique for improving image classification when labeled data is scarce. Constraining the model predictions to be invariant to diverse data augmentations effectively injects the desired representational…

Computer Vision and Pattern Recognition · Computer Science 2022-11-21 Yuliang Zou , Jinwoo Choi , Qitong Wang , Jia-Bin Huang

Sim-to-real reinforcement learning (RL) for humanoid robots with high-gear ratio actuators remains challenging due to complex actuator dynamics and the absence of torque sensors. To address this, we propose a novel RL framework leveraging…

Robotics · Computer Science 2025-04-14 Sotaro Katayama , Yuta Koda , Norio Nagatsuka , Masaya Kinoshita

Deep Imitation Learning requires a large number of expert demonstrations, which are not always easy to obtain, especially for complex tasks. A way to overcome this shortage of labels is through data augmentation. However, this cannot be…

Machine Learning · Computer Science 2021-03-29 Dafni Antotsiou , Carlo Ciliberto , Tae-Kyun Kim

Accurately modeling contact behaviors for real-world, near-rigid materials remains a grand challenge for existing rigid-body physics simulators. This paper introduces a data-augmented contact model that incorporates analytical solutions…

Robotics · Computer Science 2022-06-23 Yifeng Jiang , Jiazheng Sun , C. Karen Liu

While automatic monitoring and coaching of exercises are showing encouraging results in non-medical applications, they still have limitations such as errors and limited use contexts. To allow the development and assessment of physical…

Machine Learning · Computer Science 2025-01-14 Sao Mai Nguyen , Maxime Devanne , Olivier Remy-Neris , Mathieu Lempereur , André Thepaut

Although the availability of a large amount of data is usually given for granted, there are relevant scenarios where this is not the case; for instance, in the biomedical/healthcare domain, some applications require to build huge datasets…

Machine Learning · Computer Science 2023-10-24 Pierangela Bruno , Francesco Calimeri , Cinzia Marte , Simona Perri

Due to the scarcity of labeled sensor data in HAR, prior research has turned to video data to synthesize Inertial Measurement Units (IMU) data, capitalizing on its rich activity annotations. However, generating IMU data from videos presents…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Vitor Fortes Rey , Lala Shakti Swarup Ray , Xia Qingxin , Kaishun Wu , Paul Lukowicz

Inertial measurement units have the ability to accurately record the acceleration and angular velocity of human limb segments during discrete joint movements. These movements are commonly used in exercise rehabilitation programmes following…

Human-Computer Interaction · Computer Science 2018-12-11 Antonio Bevilacqua , Bingquan Huang , Rob Argent , Brian Caulfield , Tahar Kechadi

IMUs are gaining significant importance in the field of hand gesture analysis, trajectory detection and kinematic functional study. An Inertial Measurement Unit (IMU) consists of tri-axial accelerometers and gyroscopes which can together be…

Signal Processing · Electrical Eng. & Systems 2020-05-04 Karush Suri , Rinki Gupta

AutoAugment has sparked an interest in automated augmentation methods for deep learning models. These methods estimate image transformation policies for train data that improve generalization to test data. While recent papers evolved in the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-15 Denis Gudovskiy , Luca Rigazio , Shun Ishizaka , Kazuki Kozuka , Sotaro Tsukizawa