www.grasp3d.com Memoto Maxwell: The Anatomical Head Phantom » Daniel Stough | ENGINEER Introduction To start off, I should answer some of the questions that you are most likely asking yourself after having read the box above: Q: What the heck is a phantom?A: A phantom is a bottle of fluid used to perform testing on an MRI scanner. The fluid can be a number of different solutions, based on the desired effect and test parameters. Q: Why do you need a phantom? Q: Why is this phantom so special? Hopefully you now understand the motivations of the project: I didn’t want to be a lab rat and I didn’t think anyone should have to be one either. There are other groups that are working on similar projects, like adding several different compartments for different tissues in the head. Look at my MRI Primer [FORTHCOMING], that gives a short background about my research in the Bioengineering Department at Pitt, for more information. Reverse Engineering How do you take a list of points and turn them into a solid shape? This was the most difficult task in the creation of Maxwell.
Optics and Lasers in Engineering - Holovideo: Real-time 3D range video encoding and decoding on GPU 1. Introduction 2. Principle 3. 4. 5. Acknowledgments Appendix A. References Abstract We present a 3D video-encoding technique called Holovideo that is capable of encoding high-resolution 3D videos into standard 2D videos, and then decoding the 2D videos back into 3D rapidly without significant loss of quality. Copyright © 2011 Elsevier Ltd. Artreat: A Multiscale Model For Prediction Of Atherosclerosis Progression An interview with the Coordinator, Prof Oberdan Parodi, will talk us through the project. Prof Parodi, could you please describe in few words what atherosclerosis is? Atherosclerosis is a disease of the arterial blood vessels (arteries), in which the walls of the blood vessels become thickened and hardened by "plaques." What is the main goals ARTreat focused on? ARTreat aimed to develop a multiscale and predictive model, which integrates: 3D image reconstruction,blood flow modeling,modeling of the initiation and progression of the plaque and plaque characterization. Around this three-level multiscale model, a treatment decision support system and training services have been also developed. What are the key factors success of the approach proposed by the project? The early detection and prediction of the progression of atherosclerosis are the crucial requirements towards improved treatment, and reduction in mortality and morbidity. Has the ARTreat system been tested in a real clinical setting?
Dynamic Surface Motion Capture (4D) PD map Parkinson’s disease map Parkinson’s Disease (PD) is the second most prevalent neurodegenerative disease in the world. Although many genetic and environmental factors contributing to the risk of PD have been identified, no unique causal mechanism is defined (Wellstead & Cloutier, 2011). PD is a multi-factorial condition of many subtypes with no successful mechanism-related treatments available (Obeso et al., 2010). As such, it should be regarded from the point of view of systems biomedicine. Luxembourg Centre for Systems Biomedicine (LCSB) in the collaboration with the team of Hiroaki Kitano form Systems Biology Institute (SBI), Tokyo are working on development of a disease map of Parkinson’s disease – the PD map. The PD map is a knowledge repository established to describe mechanisms of PD by means of molecular networks to grasp complex relationships between the genetic and environmental risk factors. The map has reached substantial size and complexity. Details
Matherix Labs Three tiny grills deliver high contrast X-rays Mammography scans with lower dose and higher contrast – that’s the declared goal of Dr Nik Hauser, Medical Director of the Women‘s Clinic and Director of the Interdisciplinary Breast Centre at Kantonsspital Baden, Switzerland, and Professor Marco Stampanoni of Paul Scherrer Institute in Villigen, Switzerland. Nik Hauser MD By building upon a procedure used in materials research to cull more information from X-rays the added significant value to mammography for breast cancer diagnosis. When passing through tissue, X-rays are not only absorbed but also refracted and scattered. ‘While this principle is theoretically suited for any anatomy, it presented itself for breast scans, because of the high proportion of soft tissue in the breast, which means the effects are particularly well visible,’ Dr Hauser explained. Core components of this innovative procedure are three tiny grills, one being placed directly behind the X-ray source, the two others behind the tissue sample.
Punchcard: VideoTrace Peering into nano-objects-in 3D - Information Centre - Research & Innovation Materials scientists and micro-technologists often need to view very tiny samples or components. Such checks are important to applications such as electronic miniaturisation. Yet at those scales, conventional tools such as light or electron microscopes just examine the surface. The EU-funded NanoXCT project devised a breakthrough solution. The project aimed to develop a compact and affordable scanner, providing three-dimensional interior views of samples with sizes smaller than 1 mm. The NanoXCT system uses X-rays to penetrate a specimen – for example a microchip. The scanner is also capable of analysing chemical composition. Opening doors in materials research The prime benefit of the system is that it aids materials research. Once the project's device reaches its target market, it should influence the creation of new materials. However, making such a system is not simple, and the project had to overcome considerable technical difficulty.
Cambridge University Engineering Department - Qi Pan ProFORMA: Probabilistic Feature-based On-line Rapid Model Acquisition Qi Pan, Gerhard Reitmayr and Tom Drummond Proc. BMVC'09, September 2009, London, UK The generation of 3D models is very useful for many computer vision applications. This paper introduces ProFORMA, a system designed to enable on-line reconstruction of textured 3D objects rotated by a user's hand. Partial models are created very rapidly and displayed to the user to aid view planning, as well as used by the system to robustly track the object pose. Winner of ISMAR 2009 Best Demo Prize [2009 BMVC Paper (6.3MB)] [BibTeX] Real-time system video (Xvid) [High Quality (42MB)] Article about ProFORMA in Futura-Sciences Printed article about ProFORMA in November 2009 issue of Sciences et Avenir, page 30 In Latin, "pro forma" means "for shape", which is the inspiration behind the system name.
PrimeSense’s depth acquisition is enabled by "light coding" technology. The process codes the scene with near-IR light, light that returns distorted depending upon where things are. The solution then uses a standard off-the-shelf CMOS image sensor to read the coded light back from the scene using various algorithms to triangulate and extract the 3D data. The product analyses scenery in 3 dimensions with software, so that devices can interact with users by userexperience Jan 23
PrimeSense System on a Chip (SoC)
The CMOS image sensor works with the visible video sensor to enable the depth map provided by PrimeSense SoC’s Carmine (PS1080) and Capri (PS1200) to be merged with the color image. The SoCs perform a registration process so the color image (RGB) and depth (D) information is aligned properly.[8] The light coding infrared patterns are deciphered in order to produce a VGA size depth image of a scene. It delivers visible video, depth, and audio information in a synchronized fashion via the USB 2.0 interface. The SoC has minimal CPU requirements as all depth acquisition algorithms run on the SoC itself. by userexperience Jan 23