During the first year of my PhD at Imperial College, I designed a versatile, high-precision, low power instrument for neural recordings during Deep Brain Stimulation. The device was tested and shown to fit the required specifications. An updated modular approach was also proposed and will be manufactured during the second year of my PhD. As part of the recording device, a novel modification was proposed and verified to the standard Bainter notch filter topology which allows the filter to be one-resistor tunable.

Presentation

Design of a neural decoder for a hypothetical prosthetic device. MATLAB-based, group project for the Imperial College "Brain Machine Interfaces" masters level module.

Task Description.
Project Report
Code

Individual project (masters thesis), working with the Drakakis Lab at Imperial College. A novel, non-linear, analog technique was devised to perform artefact suppression for recording during Deep Brain Stimulation. The novel technique was implemented on a PCB and used for experiments in Fall 2020.

Simple Flowchart

Group project that succeeded in the design and implementation of a "Smart Baby Buggy" with obstacle detection for visually impaired parents, using ultrasound, LiDAR and image processing.

Youtube
Huffington Post
Project Report

Coursework, in groups of 2, for the "Pattern Recognition" masters level module at Imperial College. Investigates different methods of image recognition and retrieval on a dataset of 2D centered face portraits (dataset). Techniques used include: Different feature representations, PCA, Incremental PCA, PCA-LDA, different learned and non-learned Distance Metrics, Clustering algorithms, GMMs

Report - Part 1
Report - Part 2

Individual coursework for the "Reinforcement Learning" masters level module at Imperial College. Includes using reinforcement learning algorithms on a simple gridworlds excersise and the Easy21 card game devised by David Silver (currently at Deepmind). Code is appended at the end of each part of the report.

Task Description - Part1
Task Description - Part2
Project Report - Part1
Project Report - Part2

Design and realisation of high accuracy system applying strains to cultured cells. Currently, the device is used to investigate adipocyte mechanobiology in the Overby Lab at Imperial College.

Poster
Project Report.

Supplementary material for the "Signals & Control" and "Electrical Engineering 2" module at the department of Biongineering. Bridges the gap between the two modules. Includes excerises (both pen & paper and MATLAB).

Supplementary Booklet

Summer project in the Drakakis lab at Imperial College. Theoretical analysis, design, and layout of a 3 channel PCB. Includes intefacing with high impedance sensors and measurement of pA currents.

Project Report

Personal notes on different ways of removing DC offset in differential measurements. Written during my undergraduate thesis on artefact suppression for recording of LFP signals during DBS.

Full Notes

Personal notes that expand on the concepts in the first part of the "Advanced Signal Processing" module at Imperial College. Includes some discussion on the optimal number of bins for histogram estimation of a normal distribution.

Full Notes