RBE Practicum Presentation: Abhiroop Ajith | Visual Tactile Robotic Inspection

Wednesday, May 10, 2023
1:00 pm to 2:00 pm
RBE Robot Lineup

RBE Practicum Presentation

Abhiroop Ajith 

Visual Tactile Robotic Inspection

Wednesday, May 10th, 2023

1:00 PM - 2:00 PM

Zoom Link: Email aajith@wpi.edu

Abstract: In manufacturing processes, surface inspection is a key requirement for quality assessment and damage localization. Due to this, automated surface anomaly detection has become a promising area of research in various industrial inspection systems. A particular challenge in industries with large-scale components, like aircraft and heavy machinery, is inspecting large parts with very small defect dimensions. Moreover, these parts can be of curved shapes. To address this challenge, we present a 2-stage multi-modal inspection pipeline with visual and tactile sensing. Our approach combines the best of both visual and tactile sensing by identifying and localizing defects using a global view (vision) and using the localized area for tactile scanning for identifying remaining defects. To benchmark our approach, we propose a novel real-world dataset with multiple metallic defect types per image, collected in the production environments on real aerospace manufacturing parts, as well as online robot experiments in two environments. Our approach is able to identify 85% defects using Stage I and identify 100% defects after Stage II.


Professor Berk Calli, Worcester Polytechnic Institute (WPI)

Professor Greg Lewin, Worcester Polytechnic Institute (WPI)


Gokul Sathya Narayanan, Research Scientist, Siemens



Robotics Engineering