×

Interactive Virtual Reality

Interactive virtual reality is the next step in immersive VR. It eliminates passive viewing experiences and increases engagement.

By its nature, virtual reality creates an immersive environment by allowing users to move their gaze to explore all 360 degrees of a scene and focus on what they find most compelling. But as virtual reality matures and evolves, there has been a push to create interactive virtual reality experiences to help increase engagement and immersion.

As part of this project, we integrated Kinect and Leap Motion Sensor to add additional resposiveness in VR. The Kinect depth & image data\ was used to localize people in a closed room to obtain their states. Leap Motion Sensor mounted in front of VR headset would capture user gestures. All the data was sent to central server which is polled by the VR device real time. Additional sensor like push button were also added in the room to collect additional information. A treasure hunt game was developed in Unity.



Duration Feb 2017 - May 2017
Mentor Prof. Kenji Shimada
Location Carnegie Mellon University, Pittsburgh
Role Academic Project

Gallery

×

Robust Tracking of Planar Objects in Low Light and Sudden Illumination Changes

Object tracking is an important problem in Computer Vision. With new focus on autonomous cars and flying drones, there is need for better tracking methods while improving the efficiency of the current methods.

Dense image alignment methods are known to be more suitable for estimating correspondences from high frame rate cameras as they do not rely on exhaustive search, however, these approaches are sensitive to illumination change. On the other side, binary descriptors are computationally efficient sparse image alignment algorithms.

The proposed adaptation of the binary descriptors with multi-channel Lucas-Kanade Algorithm introduces a novel technique for combining the robustness of binary descriptors with the speed and accuracy of dense alignment methods. The proposed approach is demonstrated to achieve robustness and faster than real-time performance.



Duration Feb 2017 - May 2017
Mentor Prof. Deva Ramanan
Location Carnegie Mellon University, Pittsburgh
Role Academic Project

Gallery

×

Portable Washing Machine

Multiple times there are long queues in hostels to wash clothes, the washing machine may be malfunctioning. Laundry services are often expensive and unreliable most of the times.

There are multiple products available in the market may appear handy but they are generally expensive and not so portable what they claim to be.

PWM - Portable Washing Machine is a step towards solving some of these issues. Targeted for Indian markets, it is one novel product to suit needs of the people.



Duration Jan 2013 - Apr 2013
Mentor Prof. Krishnan Balasubramanian
Location Dept. of Mecahnical Engineering, IIT Madras, Chennai
Role Academic Project

Gallery

×

Gold Casting

Jewellery is manufactured using lost wax investment casting process. After casting individual pieces are removed from the gold tree. In this process , the yield is only 40 percent because majority of the gold goes to the stem of the tree which supports the product. Finally the left out stem will be recycled few times and sent back for refining. Refining the metal again has its own process loss .

Since gold is a precious material and expensive , we need to improve the yield of the casting process to the maximum possible and minimise the gold loss.

The stem of the casting ensures that the gold poured into the mould has enough fluidity so that it doesn't solidify before filling the entire cavity. The aim was to maintain the fluidity of the liquid gold in the stem while at the same time reducing the overall material used in the stem. We introduced a novel method of inserting a heating element in the step of stem of casting made of Silicon Carbide doped with Silicon or Carbon to reduce the wastage of gold in the step while ensuring to minimize reaction of gold with heating element.



Duration Aug 2013 - Sep 2013
Location Dept. of Metallurgical and Materials Engineering, IIT Madras, Chennai
Role Project Lead
Award Winner-Titan's IDP

Gallery

×

Waste Segregator

Currently in India, acyclic process of extraction → production → consumption → disposal is followed. The Municipal Corporation which collects nearly 90% of the Municipal Solid Waste disposes it at the dumping grounds. The entire process of transportation, dumping and non recycling has tremendous environmental implication. Only about 10% of the recyclables get recycled, primarily through the informal sector. Women waste pickers are a key source for the informal sector.

There is a need for a self sustained decentralized system which takes care of both biodegradable (food waste, horticulture waste) and non-biodegradable waste. For bio- degradable waste, Bio-Gas plant/composting solutions is used while the non-bio- degradable waste is channelized to recycling units leaving a very small percentage of waste going to the dumping grounds and creating "zero-waste" situations.

We designed and developed a proof of concept for mechanical separator for solid wastes separation. and won General Electric's Industry Defined Problem for the proposed design.



Duration Dec 2013 - Jan 2014
Location Centre for Innovation, IIT Madras, Chennai
Role Project Lead
Award Winner-General Electric's IDP

Gallery

×

Efficient Transport For Perishable Food

Transporting perishable items such as vegetables seems to be tricky business. It is not a good approach to simply fill the truck with tomatoes without partitions as the tomatoes at the bottom will get squished under the weight of the top ones. However, introducing partitions causes huge increase in loading/unloading time of tomatoes.

The aim of this project was to design a system for loading/unloading of tomatoes without significantly decreasing the quantity of tomatoes in the truck and ensuring there is no loss due to squishing.

We were awarded 3rd position in Ashok Leyland's Industry Defined Problem for the proposed design.



Duration Mar 2012 - Apr 2012
Location Centre for Innovation, IIT Madras, Chennai
Role Project Lead
Award 3rd-Ashok Leyland IDP

Gallery

×

Autonomous and Manual Robot for Robocon 2012

ROBOCON is a prestigious national and international annual robotics contest organized by Asian-Pacific Broadcasting Union. The competition involves a problem statement to be completed by co-ordination amongst a set of autonomous and manual robots within a given time window. Robots carry out different tasks to obtain points.

As part of the institute team, I was design incharge of manual robot and one of the autonomous robots required as per the theme of ROBOCON 2012. I particularly focused on the electrical design and robot control.

The autonomous robot was a large two wheeled differential drive robot with high precision rotary encoders. An array of optical sensors were used for precise line following. The robot had servo based claws designed to grip and pick-up circular objects. The robot used light dependent triggers to communicate with the manual and the other autonomous robot. It used position controlled mechanical sliders as extensible linear actuators to extend the reach of its grippers to several objects placed in the arena.

The manual robot was also a large two wheel differential drive robot. This 25kg robot carried the operator on it to pick and place various objects including the autonomous robot.

The team reached semi-finals and won the 'Best Idea Award' for successfully solving the problem statement in an innovative way.



Duration Sep 2011 - Mar 2012
Mentor Prof. Prabhu Rajagopal
Location Centre for Innovation, IIT Madras, Chennai
Role Developer
Rank National Rank - 4th/67
Media Fifth Estate

Gallery

×

InSenSe: 3D Interactive Surface

As technology proceeds towards becoming more and more intuitive, human gesture recognition is a powerful technique to convey information or for device control. Humans use gestures to communicate with and command other people.

One of the technology that targets this area is touch screen. However, most of the conventional touch screens depends on human touch and hence the actions are restricted in a 2D plane. As part of InSenSe, we developed a novel interactive surface that tries to take a leap towards capturing human gestures in 3 dimensional space.

As part of InSense, we studied triboelectric series to identify materials that have higher tendency to become negatively charged. This helped to determine which combination of materials create the most static eletricity. Using this we developed a capacitor with a dielectric that would amplify the electric field changes and hence would capture the changes in electric field associated with user's hand and the electrode.

We then measure capacitance changes of the system to map user hand movements. A matrix of such capacitors were used to better map user's hand movements with better accuracy.

We won General Electric's Industry Defined Challenge in 2011 and placed 3rd in Samsung Innovation Award for this design.



Duration Dec 2010 - May 2012
Mentor Prof. Prathap Haridoss
Location Centre for Innovation, IIT Madras, Chennai
Role Academic Project
Awards Winner-GE IDC & 3rd-Samsumg Innovation Awards
Media Techvorm

Gallery

×

Thermodynamic Modeling of Al Ni Zr System

The Al-Ni-Zr system is an important alloy system in various high temperature applications including airplane turbine blades due to their high creep resistance and corrosion resistance.The constituent binary systems of Al-Ni, Al-Zr and Ni-Zr have been extensively investigated both experimentally and thermodynamically whereas the ternary system of Al-Ni-Zr remains unexplored to a great extent. An attempt was made to obtain the thermodynamic description of this system with the CALPHAD approach. Gibbs energy parameters for equilibrium phases are obtained by optimization of published experimental data, by combining it with thermodynamic descriptions of the limiting binaries from the literature.



Duration Aug 2013 - May 2014
Mentor Prof. K C Harikumar
Location Dept. of Metallurgical & Materials Engineering, IIT Madras, Chennai
Role Academic (Bachelor's Thesis)

Gallery

×

PlotterX: 4D Graph Plotter

Having realized how data visualization could help understand 4D functions with the 4th axis being pseudo time, PlotterX is a step towards helping people achieve data exploration in 4D intuitively.

PlotterX is a lightweight tool written in C++, that uses OpenGL to visualize functions. The user enters function as a string and mentions the step size along various axis for creating the mesh. Higher the number of steps, smaller is the mesh size creating high resolution graphs, however this means that a larger compute would be required.

PlotterX offers features like Zoom-Pan-Rotate and the user can change the speed of transition between various time steps. To ensure a minimal lag in the user interactions post functions plot, we use a feature of GL Display List to efficient display function plots for each time step.



Duration Oct 2016 - Dec 2016
Mentor Dr. Soji Yamakawa
Location Carnegie Mellon University, Pittsburgh
Role Project Member

Gallery

>
Start Gesture Scrolling

Ashish Bajaj

Quantitative Strategist & Software Developer

Profile

I'm a creative Programmer & Quantitative Strategist


About me

I am interested in designing software applications, which use data and analytics to solve business problems. I like the challenge of combining machine learning with traditional software development in order to create robust solutions.

Ashish Bajaj

Details

Name:
Ashish Bajaj
Location:
Pittsburgh, PA, USA

Experiences

"Every experience, good or bad, is a priceless collector's item."
- Isaac Marion


Educations

Carnegie Mellon University

Aug 2016 - May 2017

MS - Mechanical Engineering With courses ranging from Machine Learning to Computer Vision, I explored plethora of topic in Robotics. Various courses and projects helped me develop a deeper understanding in Robotics, Control Systems and Data Science. Pittsburgh, PA

Indian Institute of Technology Madras

Aug 2010 - Jul 2014

Bachelor - Metallurgical and Materials Engg (Minor: Industrial Engg) Engineering at IIT M gave me a new perceptive to look at materials. I learned in-depth about materials and their underlying properties. Along with gaining expertise in material sciences, I developed a flare for robotics and product development. Chennai, India


Careers

Auton Lab - Carnegie Mellon University

Aug 2016 - May 2017

Research Assistant I did my research in the field of Data Mining & Data Visualization. Particularly my work involves around identifying low dimensional structures in data, leveraging it to provide additional utility in machine learning applications. Pittsburgh, PA | http://www.autonlab.org//

Goldman Sachs

Jun 2014 - May 2016

Fulltime - Quantitative Strategist As part of community highly skilled in quantitative and technical skills called "STRATS", along with my colleagues, I partnered with teams throughout Goldman Sachs to develope and deploy mathematical models to reduce financial risk, improve client services & reduce costs. Bengaluru, India | http://www.goldmansachs.com/

Goldman Sachs

May 2013 - Jul 2013

Summer Intern - Quantitative Strategist As part of the Strats team of Goldman Sachs, I worked on multiple projects that tested my quantitative and technical skills and had a financial impact to the firm. The place that is known for its stressful environment helped me improve not just in technical skills but elevated my skills in team work and consulting. Bengaluru, India | http://www.goldmansachs.com/

GE Global Research

May 2012 - Jul 2013

Research Intern Studied the crack propagation at high temperature in air plane turbines to estimate decline in strength of materials with time. We developed libraries to process images of turbine micro-structure and successfully set up a mathematical model to capture micro-structural changes and estimate strength of materials. Bengaluru, India | http://www.geglobalresearch.com/

Projects

"You can do anything you set your mind to."
- Benjamin Franklin


Interactive Virual Reality

A system designed to capture user's motion and hand gestures to eliminate passive viewing experiences and increases user engagement creating a immersive VR experience

Tags:
Virtual Reality, Localization, Gesture Recognition

View more

Robust Low Light Tracking for Planar Objects

A novel approach to use binary descriptors with Lucas-Kanade Tracker to achieve robustness & real-time performance in low light & sudden ilumination changes situations.

Tags:
Computer Vision, Lucas Kanade Tracker, BitPlanes

View more

PlotterX - 4D function Plotter

PlotterX is a lightweight tool written in C++, that uses OpenGL to visualize functions in 4D.

Tags:
Data Visualization, Function Plotter, Software Developement

View more

InSenSe: 3D Interactive Surface

Developed interactive surface using capacitive sensing & unique electrode-dielectric combination to capture user's hand gesture in 3D space

Tags:
3D Mapping, Interactive Devices, Design, Product Development

View more

Autonomous Robot - ABU Robocon 2012

As part of ABU Robocon-2012 (Robotics competition in Asia Pacific Region), developed two autonomous robots to move, pick & place objects and synochronize their task by communicating with each other

Tags:
Design, Developement, Robotics

View more

Efficient Transport for Perishable Goods

Designed loading area of the truck to transport perishable food to minimize squishing due to heavy load without increaing loading/unloading time

Tags:
Design

View more

Waste Segregator

Designed and developed a waste segregator to segregate biodegradable and non-biodegradable wastes

Tags:
Design, Development

View more

Portable Washing Machine

Designed and developed a portable washing machine and formulated a business plan to launch it in Indian Markets

Tags:
Design

View more

Thermodynamic Modeling of Al Ni Zr System

Defined the thermodynamic properties of each phase using a mathematical model & optimized the fit to the available experimental data to calculate phase diagram of the system

Tags:
Mathematical Modeling, Optimization, Data Visualization

View more

Gold Jewellery Casting

Devising a novel method for casting gold jewellery to increase the yield and reduce gold loss in cast stem

Tags:
Design

View more

Abilities

"Nothing can challenge your ability, even difficulties cannot!!!"
- Kelvin


Skills

  • Software Development
  • Data Analysis
  • Web Applications
  • C/C++
  • MySQL
  • Python
  • Matlab
  • Object Orientated Programming
  • HTML(5)
  • Javascript
  • R
  • CSS(3)
  • Bootstrap Framework
  • AngularJS

Languages

  • Hindi (Mother tongue)
  • English (Daily use)

Tools

  • Avr Studio
  • Solid Works
  • Android Studio
  • ThermoCalc
  • Eagle
  • Weka
×

India - The Land of Diversity



Timeline Nov 1991 - Jul 2014

Gallery

×

A Visit to Vietnam



Timeline Oct 2015
With Friends

Gallery

×

The Kingdom of Cambodia



Timeline Oct 2015
With Friends

Gallery

×

Thailand-Land of White Elephants



Timeline Feb 2016
With Friends

Gallery

Travel

"To travel, to experience and to learn: that is to live"
- Tenzing Norgay


A visit to Vietnam

Vietnam is a country of breathtaking natural beauty with a unique heritage, where travel quickly becomes addictive. A surreal seascape of limestone islands to a lonely ride through mountain pass, this country is just astonishingly exotic and utterly compelling.

Tags:
Amazing Vietnam, Lifetime experience

View more

The Kingdom of Cambodia

With a history both inspiring and depressing, Cambodia delivers an intoxicating present. The first glimpse of Angkor Wat, the ultimate expression of Khmer genius, is sublime and is matched by only a few select spots on earth.

Tags:
Angkor Wat, Khmer empire, Timeless landscapes, Turbulent history

View more

Thailand - Land of White Elephants

Friendly and fun loving, exotic and tropical, cultured and historic, this country truly reminds travellers the feeling of freedom. With white-sand beaches, jungles and Buddhist temples, this country offers is a heaven for travellers.

Tags:
Land of freedom, Beaches, tropical climate, Thai food

View more

India - The Land of Diversity

Incredible India - With vast differences in geography, climate, culture, language and ethnicity across its expanse, we are proud on being the largest democracy on Earth

Tags:
Land of Diversity, Home Country

View more

Contact



Credits


  • Thanks to all the people whom I worked with in various projects. I tried to add photos of the team incase they were available.