Portfolio

Software for Virtual Human Anatomy

Project implementation: 2010-2012.
Tags: software for healthcare, 3d graphics, design of human body, database of organs and tissues diseases, skeleton visualization, visualization of lymphatic system, visualization of blood-vascular system, visualization of  inner parts of a human body, OpenGL С++, GLSL, TAO Framework C#.
Technologies: C++, OpenGL, C#, WPF 3.5, COM, TAO Framework, GLSL.
Client: QuintSysteme GmbH (Austria).

Project description

The main aim of the project was to create special software to visualize:
• The inner parts of a human body
• the lymphatic, blood-vascular, and excitatory systems
• other anatomic components
The software, developed with COM-technology, was interfaced with the software which controlled the medical equipment, to display both the current state of a patient and operational status of the equipment. The project included the development of special animation mode to simulate the operation of measuring equipment, to dynamically display electromagnetic fields , to simulate the moving parts of the equipment, etc.
Highlighting, flashing, geometry and texture alterations were implemented to assist the diagnostic visualization of organs, with the help of shader graphics applications.

 

Software Module Development for Creating Clothes with Dress Patterns

Project implementation: 2010-2011.
Tags: QCAD, pattern designer, Delaunay triangulation, tailor, Hord3D, dress patterns, paper patterns, modeling of clothes creation, dress form visualization, virtual fitting-room, stitcher of clothes, creation of virtual skirt, creation of virtual trousers, creation of virtual sweater, creation of virtual t-shirt.
Technologies: C#, .Net, Marshaling, С++, QCAD, Delaney triangulation, Hord3D, DXF file format.
Client: Quakeup Media Production, Inc. (Canada).

Project description

The aim of the project was to create 3D models of men’s and women’s clothing using dress patterns. During this project, the following the significant challenges were resolved:
1) loading dress patterns (in DXF file format) into the software
2) discretizing the patterns using the Delaunay triangulation algorithm;
3) “sewing” the patterns at the points specified by stitches
4) placing sewn patterns over human forms.
We therefore created a virtual tailoring tool which took into account varying human shapes and sizes.


 

 

The Development of a Collision Detection and Reporting Module  Involving a Human Form and a Virtual Clothes Fitting Test

Project implementation: 2011.
Tags: collision detection CUDA, processing of collisions on a video card, processing of CUDA collisions, collision detection algorithm , clothes fit test, virtual fitting room, real-time clothes fit-test.
Technologies: С++, С, CUDA, QCAD.
Client: Quakeup Media Production, Inc. (Canada).

Project description

This project targeted the creation of a module to process the interaction of tailored clothes with the human form by detecting collisions between meshes. The desired result was to help develop better designs by avoiding areas subject to excessive stretching and pulling of material through fitting tests (e.g., during the movement of feet, hands and shoulders, pull of gravity, etc.)
The main task was to optimize the algorithm for maximum possible acceleration. This task was successfully accomplished using CUDA technology and implementation of the algorithm for processing on the graphics card.
The development of this module has thus provided the first opportunity to perform qualitative clothes fitting tests in real time.


 

Acceleration of Image Processing in the Spectral Studio Software

Project implementation: 2010-2011.
Tags: Ray-tracing, BVH, CUDA, Spectral Studio, creation of photorealistic images, image processing, effects for images, software for image processing, WPF c#, GPU, C++.
Technologies: C#, С++, CUDA API (SDK).
Client: Spectral Pixel (Belgium).

Project description

The main aim of the project was to accelerate the process of image rendering in the Spectral Studio © software, aimed at creating photorealistic images of objects from 3d models.
To facilitate this, a GPU-version of the “Aurora Renderer” module was created, including a new CUDA implementation of ray-tracer, using a specially created structure called BVH (Bounding Volume Hierarchy) to optimize and accelerate operation.
Once all the optimizations for the “Aurora Renderer” module were implemented, a tenfold acceleration of image creation on video cards was achieved.


 

Visualization of DNS-Network Operation

Project implementation: 2010-2011.
Tags: visualization of online data, 3d visualization on the Internet, visualization of Internet traffic, visualization of distributed data, Processing Java.
Technologies: Processing 1.2, Java SE, OpenGL (JOGL), GLSL.
Client: Dyn, Inc. (USA).

Project description

This project was aimed at the real time visualization of dynamically changing data on DYN servers. Processing data regarding network workloads, the number of user enquiries, location and direction of address of enquiries, the workload of specific servers and traffic information was represented in both 2D and 3D graphics.
The 2D data was presented in dynamic graphs and tables, and the 3D representation included special effects such as dynamic radial lines representing global magnitudes (shown in the figure below), shading and blinking effects, company check boxes, texture variations, color gradients and moiré patterns from servers , etc., as well as scene control functions like rotation, scaling and hotkeys to adjust data visualization.


 

Development of Software Specifications to Visualize Email Traffic on DYN Servers 

Project implementation: 2013.
Tags: visualization of distributed data, 3d visualization on the Internet, graph visualization, e-mail traffic, development of specifications, 3d web visualization.
Technologies: OpenGL, GLSL.
Client: Dyn, Inc. (USA).

Project description

This project required software conceived to represent e-mail traffic from the sender to the final destination using DYN, according to special technical parameters as well as resource and time limits. The task was complicated because: 1) the initial data was diversified and stored on various servers on the Internet; 2) the amount of the initial data was very large and constantly updated; 3) users had to be able to consult this information clearly via the Web, including 3D.
As a result, the data visualization concept was developed, technical requirements and technologies were described, and the approximate timescale necessary for project implementation was estimated. Examples of possible developments and available OpenSource solutions were represented.


 

The Development of a New Backend for Specialized Set of OSL Functions

Project implementation: 2013-2014.
Tags: graphics effects, low-level adaptation of CPU code for GPU, backend creation, LLVM, LLVM-IR, OpenGL, С++, GLSL, CUDA, PTX, OpenShadingLanguage(OSL), OpenImageIO, Unix.
Technologies: C++, OpenGL, GLSL, CUDA, PTX, LLVM, LLVM-IR.
Client: Spectral Pixel (Belgium).

Project description

The aim of the project was to create a new backend for a specialized set of functions of the OpenShadingLanguage shader language (initially it only existed in CPU implementation, using LLVM to optimize and generate a binary code). The problem was significantly complicated by the necessity to develop executable code for the GPU, which was intended to accelerate the operation of the main application.
The following approaches for solving this problem were studied and analyzed:1) direct conversion of OSL sourcecodes into the GLSL shader language;
2) obtaining intermediate GPU adapted LLVM-IR bitecode with subsequent linking on libdevice for PTX generation;
3) obtaining an intermediate LLVM-IR structure which is then adapted for GPU architecture, with subsequent manual output to GLSL shaders.Because of the specific nature of the main application, the third strategy was chosen. We obtained a GLSL code generator for the specific set of OSL functions, maintaining intermediate OSL optimization to apply on shader networks, for overall multiple performance improvement.


 

The Development of Software-Studio for Image Processing Using Custom Graphics Filters

Project implementation: 2011.
Tags: Shaders, image processing, effects for images, software for image processing, GLSL, tree of effects, visual node network, WPF C#, image filters.
Technologies:
C#, WPF 3.5, OpenDiagram, GLSL.
Client: Spectral Pixel (Belgium).

Project description

The project was aimed at creating image processing software using graphics shaders. A sequence of GLSL shaders was created, each with a special graphic effect, such as digital noise or image blur, on an image. This shader structure was arranged in a special “visual node” network, which permitted:
• the construction on a tree of effects for image processing
• the interactive alteration of the parameters of each effect
• the visualization of the application of a built tree of effects and the respective parameter settings.
The result was the creation of GLSL code conforming to the built tree of effects. This code allows the same effect to be processed on a video card for any other image, significantly reducing the processing time and relieving the CPU while allowing for the creation of professional series of effects for the film industry, amongst other things
The user interface was implemented with WPF technology for the Windows XP OS.


 

Deformable Registration Algorithm Implementation

Project implementation: 2010.
Tags: deformable registration, MATLAB, image deform, grid, mesh.
Technologies: MATLAB.
Client: Tomographix IP Ltd. (Canada)

Project description

Medical image matching – registration algorithms that deforms one image in a non-rigid [non-linear, elastic] manner to another. Assistance with the implementation of a particular algorithm from the theory in a specific academic – scientific paper.


 

Thermosim 1.0

Project implementation: 2000-2003
Tags: Shaders, image processing, effects for images, software for image processing, GLSL, tree of effects, visual node network, WPF C#, image filters.
Technologies: 
C++ (Win API), FORTRAN, DirectX 7.0
Sector: Manufacturing

Project description

Software is destined for simulation of thermo-physical processes during heat treatment. It can be applied for investigation, development and optimization of construction parts and technological processes in various manufacturing areas.Functional capabilities:
• 3D simulation of the temperature, deformation, stress and hardness fields
• considering transformation phase and stress relaxation
• prediction of the cracks formation


 

Thermosim 2.0

Project implementation: 2003-2006
Technologies: 
C++, C#, .NET Framework: WinForms, Windows Presentation Foundation; Managed DirectX, OpenCascade, FORTRAN, XML, MS SQL.
Sector: Manufacturing

Project description

Software package supports 3D graphics for visualization physical fields in point of time. There are also many possibilities for creating of various diagrams that allow to carry out process analysis and optimization.
Technical features:
• 3D-modeling of temperature, hardness, stress and deformation fields
• Taking into account phase changes and stress relaxations
• Prediction of cracks forming
• Integrated database of steel properties
• Ability to use experimental data for training of neural networks


 

EcoView Software

Project implementation: 2007-2010
Technologies: 
C++, C#, FORTRAN, .NET Framework: WinForms, Windows Presentation Foundation, Managed DirectX, OpenGL, CUDA, XML, ADO .Net.
Sector: Environment

Project description

EcoView software will provide tools for every phase of contaminants transport simulations, pollution impact assessment and pollution risk analyzing. In addition, EcoView will consider the modeling of heat, water transport in the soil etc., runoff processes, contaminants transport in groundwater and to surface water systems (rivers, lakes, bays).


 

FSA-prognoz

Project implementation: 2011-2012
Technologies: 
C++, C#, FORTRAN, .NET Framework: WinForms, Windows Presentation Foundation, Managed DirectX, OpenGL, CUDA.
Sector: Oil&Gas

Project description

FSA-prognoz is a software for modeling and simulation of permafrost processes, custom developed for the company Fundamentstroyarkos. FSA-prognoz is our company’s first simulation software development for permafrost thermal stabilization. The FSA-prognoz numerical solver is based on ten years’ experience accumulated by our company in the numerical simulation of heat-and-mass transfer in the ground.


 

Simmakers CAE Platform

Project implementation: 2010-2011
Technologies: 
Microsoft Visual C# (.NET Framework 3.5), С++ (Win API, STL, COM), Fortran 95.
Sector: Civil Engineering

Project description

The Simmakers САЕ Platform is aimed at creating software systems for performing numerical simulations of different physical and technological processes and their 3D visualization.A number of libraries and algorithms, implemented in the software platform, address the following issues:

• 3D design of geometric objects
• 3D mesh creation
• Initial and boundary conditions input and editing
• Visualization of scalar and vector quantities in the form of color distribution and isolines
• System and arbitrary units input with automatic conversion
• Graph dependence creation
• File reading with geometric data in various formats


 

Frost 3D Universal

Project implementation: 2013-2015
Technologies: 
C++, C#, .NET Framework: WPF, WCF, MAF; Managed DirectX, OpenGL, CUDA.
Sector: Oil&Gas, Civil Engineering

Project description

Frost 3D Universal software allows you to develop scientific models of permafrost soil thermal modes under the thermal influence of pipelines, production wells, hydraulic constructions etc., taking into account the thermal stabilization of the ground. The software package is based on ten years’ experience in the field of programming, computational geometry, numerical methods, 3D visualization and parallelization of computational algorithms.


 

Soil Settlement

Project implementation: 2014
Tags: Civil Engineering, Geoengineering, Soil Settlement, Foundation Settlement, Ground Thawing
Technologies: C#, .NET Framework: WPF;
Sector: Construction engineering

Project description

The utility model allows calculating the soil settlement with the additional pressure generated by weight of structures under conditions of ground thawing. Model is based on SNIP 2.02.04-88. This utility can be integrated with the Frost 3D Universal software package for calculating ground settlement. Using the geological structure of the ground created in the software and the calculated temperature field, it can determine the settlement of soil base under structures (building foundation, pipelines supports, power lines, underground pipelines, etc.) as a result of ground thawing.


 

Emotion Recognizer

Project implementation: 2010.
Tags: face recognition, image processing, emotion detection.
Technologies: MATLAB
Client: University of East Anglia (UK)

Project description

In the program implemented:
1) Graphical data reading, image processing, face detection on the complex background
2) Principal component analysis
3) Emotion recognition using classifier based on Fisher linear discriminant analysis


 

SoftwareSherpa

Project implementation: 2010.
Tags: software, freeware, download, distribution.
Technologies: C#, .Net Framework 2.0, XML
Client: Ohrizon Inc. (USA)

Project description

The program helps find, download, and install the best free software on the web. Free software is great. We’re going to make it even better. We’re working with Microsoft Visual Studio to build SoftwareSherpa, a program that will help you find, download, and install the best free software on the web. The first version is available for Windows 7, Vista, and XP.


 

Elementary Car Emulator

Project implementation: 2009
Technologies: C++, OpenGL
Client: University of East Anglia (UK)
Sector: Education

Project description

The user should be provided with the scene consisting of simple roads and buildings. User controls car movement – speed and direction. Several camera positions should exist: car driver’s view, behind car, above car and other user controlled positions. Scene should consists several bot-cars with analytical logic – collision control, traffic rules control, championship control.


 

CFD Batching Model

Project implementation: 2009.
Tags: fluid physics, 3d visualization, parallel algorithms, graph visualization, flow modeling.
Technologies: Ansys ICEM CFD, Ansys Fluent, FlowVision.
Client: Enersave Fluid Mixers. (USA)

Project description

Mixing solids and fluid in 2 million gallons egg-shaped tank has a place. There are no solids concentration on the tank bottom – the solution entering the tank contains approximately 3 to 5% solids at 100 to 150 microns. The reason for mixing is to keep the solids in suspension. At the start of operation the tank is filled with water only and slowly over a period of a month is the bulk density of the full tank (usually 1.5 to 2.0 million gallons) reach a solids concentration of 2.5% to 4%.


 

Statistical Data Processing Software

Project implementation: 2010.
Tags: visualization of distributed data, visualization on the Internet, graph visualization, development of specifications, statistics visualization.
Technologies: C#, .Net Framework, XML, Matlab
Client: Colonair LLC (USA)

Project description

Discriminant analysis software, where as a discriminant function is used Mahalanobis distance. The usage of special inversion algorithms of covariance matrix allows for the software to classify such data which is not possible to be classified by MATLAB’s classify function (this data includes strongly mutually correlated variables).


 

Platform for Discount-Finding Applications

Project implementation: 2011.
Tags: iOS, mobile, internet, geolocation, API.
Technologies: Objective C

Project description

The platform is designed to create applications that allow you to search for discounts. It can be used by different discount services with similar API.


 

URL Blocking Software

Project implementation: 2010.
Tags: internet, web, browsers, security.
Technologies: C#, .Net Framework 3.5, Windows Presentation Foundation 3.5, IE Script.

Project description

Support Windows OS; FF, IE, Chrome, Safari browsers. Software has 5 blocked sites groups with independent settings. Time schedule for blocking mode. Sites could be added in block list manually and using dragging feature. Password protection.


 

Combustion Engine

Project implementation: 2011.
Tags: engine, combustion, modelling, optimization.
Technologies: MATLAB.
Sector: Engineering
Client: LiquidPiston, Inc. (USA)

Project description

Optimization of geometric and computational thermodynamics model of a new type of rotaty engine:
– Improving the model(adding features to the model)
– Fit the model to data
– Model optimization (change the geometry and other parameters to maximize engine performance)


 

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We have been working with the Simmakers team for a long period; they provide us different kind of programming services, always with very high level expert skills.

Christophe Demez

CEO
Spectral Pixel. Belgium

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