Weiwei Yu

Dr. Weiwei Yu


Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
10 June 2020 in IEEE Transactions on Multimedia
Verified
Journal Article
Closed access
XZXinxin Zuo
Xinxin Zuo
SWSen Wang
Sen Wang
JZJiang-Bin Zheng
Jiang-Bin Zheng
WYWeiwei Yu
Weiwei Yu
MGMinglun Gong
Minglun Gong
LCLi Cheng
Li Cheng
In this paper, we propose a novel approach to reconstruct 3D human body shapes based on a sparse set of RGBD frames using a single RGBD camera. We specifically focus on the realistic settings where human subjects move freely during the capture. The main challenge is how to robustly fuse these sparse frames into a canonical 3D model, under pose changes and surface occlusions. This is addressed by our new framework consisting of the following steps. First, based on a generative human template, for every two frames having sufficient overlap, an initial pairwise alignment is performed; It is followed by a global non-rigid registration procedure, in which partial results from RGBD frames are collected into a unified 3D shape, under the guidance of correspondences from the pairwise alignment; Finally, the texture map of the reconstructed human model is optimized to deliver a clear and spatially consistent texture. Empirical evaluations on synthetic and real datasets demonstrate both quantitatively and qualitatively the superior performance of our framework in reconstructing complete 3D human models with high fidelity. It is worth noting that our framework is flexible, with potential applications going beyond shape reconstruction. As an example, we showcase its use in reshaping and reposing to a new avatar.

2 February 2024 in Frontiers in Aging Neuroscience
Verified
Journal Article
Open access
YCYasheng Chen
Yasheng Chen
WYWeiwei Yu
Weiwei Yu
ABAbderraouf Benali
Abderraouf Benali
DLDonglai Lu
Donglai Lu
SKSiong Yuen Kok
Siong Yuen Kok
RWRunxiao Wang
Runxiao Wang
The cable-driven exoskeleton can avoid joint misalignment, and is substantial alterations in the pattern of muscle synergy coordination, which arouse more attention in recent years to facilitate exercise for older adults and improve their overall quality of life. This study leverages principles from neuroscience and biomechanical analysis to select attachment points for cable-driven soft exoskeletons. By extracting key features of human movement, the objective is to develop a subject-specific design methodology that provides precise and personalized support in the attachment points optimization of cable-driven exoskeleton to achieve natural gait, energy efficiency, and muscle coordination controllable in the domain of human mobility and rehabilitation. To achieve this, the study first analyzes human walking experimental data and extracts biomechanical features. These features are then used to generate trajectories, allowing better natural movement under complete cable-driven exoskeleton control. Next, a genetic algorithm-based method is employed to minimize energy consumption and optimize the attachment points of the cable-driven system. This process identifies connections that are better suited for the human model, leading to improved efficiency and natural movement. By comparing the calculated elderly human model driven by exoskeleton with experimental subject in terms of joint angles, joint torques and muscle forces, the human model can successfully replicate subject movement and the cable output forces can mimic human muscle coordination. The optimized cable attachment points facilitate more natural and efficient collaboration between humans and the exoskeleton, making significant contributions to the field of assisting the elderly in rehabilitation.

16 December 2022 in ISA Transactions
Verified
Journal Article
Closed access
WYWeiwei Yu
Weiwei Yu
DJDian Jin
Dian Jin
FZFeng Zhao
Feng Zhao
XZXiaokun Zhang
Xiaokun Zhang

6 September 2022 in Computer Methods and Programs in Biomedicine
Verified
Journal Article
Closed access
WYWeiwei Yu
Weiwei Yu
DJDian Jin
Dian Jin
WCWenfeng Cai
Wenfeng Cai
FZFeng Zhao
Feng Zhao
XZXiaokun Zhang
Xiaokun Zhang

28 December 2022 in Computer Methods and Programs in Biomedicine
Verified
Journal Article
Closed access
WYWeiwei Yu
Weiwei Yu
FZFeng Zhao
Feng Zhao
ZRZhijun Ren
Zhijun Ren
DJDian Jin
Dian Jin
XYXinliang Yang
Xinliang Yang
XZXiaokun Zhang
Xiaokun Zhang

1 February 2015 in Bio-Medical Materials and Engineering
Verified
Journal Article
Open access
PDF file
WYWeiwei Yu
Weiwei Yu
HFHuashan Feng
Huashan Feng
YFYangyang Feng
Yangyang Feng
KMKurosh Madani
Kurosh Madani
Christophe SabourinChristophe Sabourin
Christophe Sabourin
Motor imagery EEG-based BCI has advantages in the assistance of human control of peripheral devices, such as the mobile robot or wheelchair, because the subject is not exposed to any stimulation and suffers no risk of fatigue. However, the intensive training necessary to recognize the numerous classes of data makes it hard to control these nonholonomic mobile systems accurately and effectively. This paper proposes a new approach which combines motor imagery EEG with the Adaptive Neural Fuzzy Inference System. This approach fuses the intelligence of humans based on motor imagery EEG with the precise capabilities of a mobile system based on ANFIS. This approach realizes a multi-level control, which makes the nonholonomic mobile system highly controllably without stopping or relying on sensor information. Also, because the ANFIS controller can be trained while performing the control task, control accuracy and efficiency is increased for the user. Experimental results of the nonholonomic mobile robot verify the effectiveness of this approach.