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Ph. D. Project [2014 - 2018] - Development of a high accuracy and low power Star Tracker for nano-satellites under Associate Professor Shoushun Chen at Nanyang Technological University (NTU), Singapore.
- Tasks involved: Development of a novel star pattern recognition technique which gives high accuracy in an ideal case.
- The developed pattern recognition technique must also be robust to the cases when there missing stars, random stars, positional deviation in the image captured by the image sensor mounted on the satellite.
- The developed pattern recognition must also consume less time and provide a fast search in the star pattern database.
- The developed pattern recognition technique has to be implemented on an FPGA and a high accuracy, low power star tracker prototype has to be developed.
Development of star identification algorithm - i
Development of star identification algorithm - ii
Light weight casing developed for the sensor and FPGA boards
Image sensor and FPGA board
Sensor and FPGA board configured and stacked in the casing
Star tracker testing system (Check the live demo by clicking on the link beside)
Research Intern [February 2018] - Embedded Core Technology Department at Toshiba Devices & Storage Corporation (TDSC), Tokyo, Japan.
- Tasks involved: Building fully supervised and semi-supervised learning techniques for facial emotion recognition of drivers for a self-driving car.
- Implemented fully supervised approach using Convolutional Neural Networks (CNNs) - 4 layer on keras (using tensorflow as the backend). The architecture was able to achieve an accuracy of 63.7% for facial emotion recognition of the kaggle challenge.
- Implemented semi-supervised learning approach by borrowing the idea from Ladder Network i.e. implemented a Denoising Autoencoder module on keras (using tensorflow as the backend). This approach was able to achieve an accuracy of 43.5% with the baseline accuracy being 40% for 20:80 (labeled:unlabeled) data.
Undergraduate Final Year Project [January-May, 2014] - Modifying Cache Replacement Algorithm in Multicore Systems under Prof. Dr. N. Ramasubramanian at National Institute of Technology (NIT), Tiruchirappalli, India.
- Tasks involved: Observing the behavior of existing data eviction algorithm on Cache simulator called CACTI.
- Implemented existing algorithms and simulated the same behavior using C++ as the platform.
- Development of a new algorithm which included both the frequency of hits and the time of the recent history of hits.
Summer Research Internship 2013 (DAAD Fellowship 2013) - Development of a Translator v2NuSMV: Translates from a subset of Verilog HDL into the input language of Open Source Formal Verification Tool NuSMV under Prof. Dr. Ulf. Schlichtmann guided by M.Sc. Alessandro Bernardini at Department of Electronic Design and Automation at Technical University of Munich, Germany.
- Tasks involved: Parsing the netlist, extraction and storing of the required information in the classes, converting and recovering the stored information into the input language of NuSMV.
- The translation was carried out with reference to the NangateOpenCellLibrary and using the lex and yacc tools of Python.
- Eventually the translator was developed and successfully translated any n-bit binary counter and a Traffic Light Controller described in Verilog HDL.
- Currently work is under extension for including a larger subset of Verilog HDL. (Please contact me if interested to pursue).
Working of v2NuSMV translator.
Verilog netlist of a 2-bit binary counter.
Translated 2-bit binary counter to NuSMV by v2NuSMV.
Summer Research Internship 2012 (May-July, 2012) - Development of Hardware Circuit for Single Phase and Three Phase Controlled and Uncontrolled Rectifiers under Dr. Raghavan.K at Department of Electrical Engineering, IIT Gandhinagar.
- Design and Simulation of the proposed analog firing circuit of Silicon Controlled Rectifiers in MultiSim and PSPICE.
- Development of hardware circuitry of the proposed design for Firing circuitry, Isolation circuitry and Power circuitry.
- Verifying the reliability of the circuit by operating the hardware circuit for firing the SCRs at the desired firing angle and comparing the practical results with that of the simulation.
- Development of Single Phase and Three Phase AC-DC converters using the prototype developed.
Miscellaneous Open Source Projects and Contributions - Github Projects
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