cv

General Information

Full Name Ajay Narasimha Mopidevi
Email ajaynmopidevi@gmail.com

Education

  • 2022 - 2024
    Masters of Science in Computer Science (CGPA - 4.0 / 4.0)
    University of Colorado Boulder
  • 2013 - 2017
    Bachelors of Technology in Electronics and Communication Engineering
    Indian Institute of Technology (IIT) Guwahati, India

Publications

Skills

Language Python, C/C++, Matlab
Machine Learning Frameworks Pytorch, Tensorflow, Keras
Libraries OpenCV, ROS, Open3D, pcl, pandas, NumPy, scikit-learn, scipy, Matplotlib, CUDA
Tools Google Cloud Platform, AWS, Docker, Kubernetes, Git, Visual Studio, PyCharm, Eclipse, IntelliJ, Meshlab, CloudCompare

Experience

  • Apr 2023 - Present
    Research Assistant
    Vignesh Kasinath Lab
    • Designed end-to-end pipeline for semantic segmentation of low resolution and sparse cellular structures from cyro electron tomography images using Multi-UNet architecture, resulting in a significant 13% boost in F1-score
    • Developed a 2-stage semi-supervised segmentation framework to segment cellular regions and fine-grained cellular structures, reducing the number of manual annotations by 85%
    • Developed unsupervised algorithms to effectively segment different instances of chromosomes in a nucleus
    • Designed advanced image processing pipelines for precise 3D pose extraction of cellualr structures from volumetric microscopic imaging data, leveraging connected components, spline interpolation, and geometric transformations
    • Integrated fine-tuned Segment Anything Model (SAM) in the pipeline, eliminating manual parameter tuning and enhancing the performance of the segmentation masks by 20%
  • Sep 2022 - May 2024
    Research Assistant
    Autonomous Robotics and Perception Group
    • Developed RMap, a volumetric mapping framework that transforms sparse radar pointclouds to high resolution 3D lidar-like maps, achieving a significant improvement in F1-score 0.59 compared to 0.19 of traditional radar maps
    • Designed UpPoinTr transformer for enhancing volumetric maps, surpassing the prior models by 8% in F1-score
    • Developed the pose-based region sampling algorithm to efficiently represent the 3D maps as minimal partial pointclouds, without any loss in details
    • Developed custom CUDA pointcloud loss metrics to evaluate deviations from groundtruth in all three dimensions
    • Enhanced the odometry estimation by 8% using only the mmWave radar, by extracting the features from 3D radar images using transformer encoder to predict a 6DoF pose
  • Jul 2020 - Jul 2022
    Computer Vision Research Engineer
    Samsung Semiconductord India R&D
    • Developed real-time 3D scene reconstruction algorithm, only using depth from ToF sensors, optimized to 20fps
    • Improved the accuracy by 5% of the reconstructed scene by removing outliers using gaussian smoothing
    • Automated pose alignment of reconstructed 3D scene with groundtruth, eliminating manual alignment in MeshLab
    • Reduced the latency of Remosaic deep learning models for 200M pixel camera sensor using quantization and pruning techniques by 10% with an unnoticeable degradation of 0.1% in perceptual quality
    • Optimized Samsung CMOS camera sensor noise reduction algorithm with OpenMP parallel programming, thereby reducing the algorithm runtime by 33%
  • Aug 2017 - Jun 2020
    Software Engineer
    Qualcomm
    • Spearheaded the development and maintenance of python audio library to evaluate both the objective and perceptual audio quality of Bluetooth headsets
    • Enhanced python automated test framework with new features that populate test vectors and visualize audio output signals, leading to a 10%-15% reduction in both the validation and developments efforts
  • May 2017 - Jul 2017
    Research Intern
    Eagle Eye Networks
    • Predicted the pedestrian/car trajectory in a video by estimating the optical flow for the YOLO precited objects
    • Achieved 72% accuracy in segmenting location and trajectory anomalies through Incremental Spherical Clustering

Awards

  • 2022
    • Received Employer of the Month at Samsung, for successfully optimizing the noise reduction algorithm to reduce runtime by 33%
  • 2020
    • Received the Spot Appreciation award, for exceptional performance in delivering the 3D reconstruction pipeline for Samsung's ToF sensors
  • 2019
    • Received Qualstar from Qualcomm for continued excellence in improving the audio quality analysis framework

Courses

    • Advanced Topics in Computer Vision
    • Deep Reinforcement Learning
    • Natural Language Processing
    • Advanced Topics in Machine Learning
    • Datacenter Scale Computing
    • Big Data Architecture
    • Advanced Robotics
    • Computer Vision
    • Computational Photography
    • Computer Graphics
    • Sensor Fusion