Yokhesh KrishnasamyTamilselvam

Mr. Yokhesh KrishnasamyTamilselvam

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

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

Representative Publications

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15 September 2020 in Sensors
Verified
Journal Article
Open access
PDF file
BRBalakrishnan Ramalingam
Balakrishnan Ramalingam
RMRajesh Elara Mohan
Rajesh Elara Mohan
PSPookkuttath Sathian
Pookkuttath Sathian
BFBraulio Félix
Braulio Félix
SBsairam BCSC
sairam BCSC
YKYokhesh KrishnasamyTamilselvam
Yokhesh KrishnasamyTamilselvam
Insect detection and control at an early stage are essential to the built environment (human-made physical spaces such as homes, hotels, camps, hospitals, parks, pavement, food industries, etc.) and agriculture fields. Currently, such insect control measures are manual, tedious, unsafe, and time-consuming labor dependent tasks. With the recent advancements in Artificial Intelligence (AI) and the Internet of things (IoT), several maintenance tasks can be automated, which significantly improves productivity and safety. This work proposes a real-time remote insect trap monitoring system and insect detection method using IoT and Deep Learning (DL) frameworks. The remote trap monitoring system framework is constructed using IoT and the Faster RCNN (Region-based Convolutional Neural Networks) Residual neural Networks 50 (ResNet50) unified object detection framework. The Faster RCNN ResNet 50 object detection framework was trained with built environment insects and farm field insect images and deployed in IoT. The proposed system was tested in real-time using four-layer IoT with built environment insects image captured through sticky trap sheets. Further, farm field insects were tested through a separate insect image database. The experimental results proved that the proposed system could automatically identify the built environment insects and farm field insects with an average of 94% accuracy.

23 June 2020 in Sensors
Verified
Journal Article
Open access
PDF file
BRBalakrishnan Ramalingam
Balakrishnan Ramalingam
YJYIn Jia
YIn Jia
RMRajesh Elara Mohan
Rajesh Elara Mohan
YKYokhesh KrishnasamyTamilselvam
Yokhesh KrishnasamyTamilselvam
MRmadan rayguru
madan rayguru
BFBraulio Félix
Braulio Félix
The role of mobile robots for cleaning and sanitation purposes is increasing worldwide. Disinfection and hygiene are two integral parts of any safe indoor environment, and these factors become more critical in COVID-19-like pandemic situations. Door handles are highly sensitive contact points that are prone to be contamination. Automation of the door-handle cleaning task is not only important for ensuring safety, but also to improve efficiency. This work proposes an AI-enabled framework for automating cleaning tasks through a Human Support Robot (HSR). The overall cleaning process involves mobile base motion, door-handle detection, and control of the HSR manipulator for the completion of the cleaning tasks. The detection part exploits a deep-learning technique to classify the image space, and provides a set of coordinates for the robot. The cooperative control between the spraying and wiping is developed in the Robotic Operating System. The control module uses the information obtained from the detection module to generate a task/operational space for the robot, along with evaluating the desired position to actuate the manipulators. The complete strategy is validated through numerical simulations, and experiments on a Toyota HSR platform.

18 March 2020 in Sensors
Verified
Journal Article
Open access
PDF file
YJYIn Jia
YIn Jia
GKGanesh Sai Apuroop Koppaka
Ganesh Sai Apuroop Koppaka
YKYokhesh KrishnasamyTamilselvam
Yokhesh KrishnasamyTamilselvam
RMRajesh Elara Mohan
Rajesh Elara Mohan
BRBalakrishnan Ramalingam
Balakrishnan Ramalingam
ALAnh Le
Anh Le
This work presents a table cleaning and inspection method using a Human Support Robot (HSR) which can operate in a typical food court setting. The HSR is able to perform a cleanliness inspection and also clean the food litter on the table by implementing a deep learning technique and planner framework. A lightweight Deep Convolutional Neural Network (DCNN) has been proposed to recognize the food litter on top of the table. In addition, the planner framework was proposed to HSR for accomplishing the table cleaning task which generates the cleaning path according to the detection of food litter and then the cleaning action is carried out. The effectiveness of the food litter detection module is verified with the cleanliness inspection task using Toyota HSR, and its detection results are verified with standard quality metrics. The experimental results show that the food litter detection module achieves an average of 96 % detection accuracy, which is more suitable for deploying the HSR robots for performing the cleanliness inspection and also helps to select the different cleaning modes. Further, the planner part has been tested through the table cleaning tasks. The experimental results show that the planner generated the cleaning path in real time and its generated path is optimal which reduces the cleaning time by grouping based cleaning action for removing the food litters from the table.

6 October 2017 in Applied Sciences
Verified
Journal Article
Open access
PDF file
KEKarthikeyan Elangovan
Karthikeyan Elangovan
YKYokhesh KrishnasamyTamilselvam
Yokhesh KrishnasamyTamilselvam
RMRajesh Elara Mohan
Rajesh Elara Mohan
IMIwase Masami
Iwase Masami
NTNemoto Takuma
Nemoto Takuma
KWKristin Lee Wood
Kristin Lee Wood
As robots begin to perform jobs autonomously, with minimal or no human intervention, a new challenge arises: robots also need to autonomously detect errors and recover from faults. In this paper, we present a Support Vector Machine (SVM)-based fault diagnosis system for a bio-inspired reconfigurable robot named Scorpio. The diagnosis system needs to detect and classify faults while Scorpio uses its crawling and rolling locomotion modes. Specifically, we classify between faulty and non-faulty conditions by analyzing onboard Inertial Measurement Unit (IMU) sensor data. The data capture nine different locomotion gaits, which include rolling and crawling modes, at three different speeds. Statistical methods are applied to extract features and to reduce the dimensionality of original IMU sensor data features. These statistical features were given as inputs for training and testing. Additionally, the c-Support Vector Classification (c-SVC) and nu-SVC models of SVM, and their fault classification accuracies, were compared. The results show that the proposed SVM approach can be used to autonomously diagnose locomotion gait faults while the reconfigurable robot is in operation.

10 April 2024 in Progress in Neurobiology
Verified
Journal Article
Open access
KSKjersti Eline Stige
Kjersti Eline Stige
SKSimon Ulvenes Kverneng
Simon Ulvenes Kverneng
SSSoumya Sharma
Soumya Sharma
GSGeir Olve Skeie
Geir Olve Skeie
ESErika Sheard
Erika Sheard
CTCharalampos Tzoulis
Charalampos Tzoulis
The STRAT-PARK initiative aims to provide a platform for stratifying Parkinson's disease (PD) into biological subtypes, using a bottom-up, multidisciplinary biomarker-based and data-driven approach. PD is a heterogeneous entity, exhibiting high interindividual clinicopathological variability. This diversity suggests that PD may encompass multiple distinct biological entities, each driven by different molecular mechanisms. Molecular stratification and identification of disease subtypes is therefore a key priority for understanding and treating PD. STRAT-PARK is a multi-center longitudinal cohort aiming to recruit a total of 2000 individuals with PD and neurologically healthy controls from Norway and Canada, for the purpose of identifying molecular disease subtypes. Clinical assessment is performed annually, whereas biosampling, imaging, and digital and neurophysiological phenotyping occur every second year. The unique feature of STRAT-PARK is the diversity of collected biological material, including muscle biopsies and platelets, tissues particularly useful for mitochondrial biomarker research. Recruitment rate is ~150 participants per year. By March 2023, 252 participants were included, comprising 204 cases and 48 controls. STRAT-PARK is a powerful stratification initiative anticipated to become a global research resource, contributing to personalized care in PD.

3 September 2024 in AppliedMath
Verified
Journal Article
Open access
PDF file
WBWanyu Bian
Wanyu Bian
YKYokhesh KrishnasamyTamilselvam
Yokhesh KrishnasamyTamilselvam
Magnetic resonance imaging (MRI) is crucial for its superior soft tissue contrast and high spatial resolution. Integrating deep learning algorithms into MRI reconstruction has significantly enhanced image quality and efficiency. This paper provides a comprehensive review of optimization-based deep learning models for MRI reconstruction, focusing on recent advancements in gradient descent algorithms, proximal gradient descent algorithms, ADMM, PDHG, and diffusion models combined with gradient descent. We highlight the development and effectiveness of learnable optimization algorithms (LOAs) in improving model interpretability and performance. Our findings demonstrate substantial improvements in MRI reconstruction in handling undersampled data, which directly contribute to reducing scan times and enhancing diagnostic accuracy. The review offers valuable insights and resources for researchers and practitioners aiming to advance medical imaging using state-of-the-art deep learning techniques.