Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Novel electron tomography software using multi-GPUs by Digisens

Abstract:
More than only cross-correlation to align a raw tilt-series without fiducials, 3D reconstruction with iterative algorithms (SART, SIRT, OS-SART) using multi-GPUs, intuitive 3D/2D visualisation: DigiECT positions itself as a revolutionary alternative compared to existing commercial and free software.

Novel electron tomography software using multi-GPUs by Digisens

Le Bourget-du-Lac, France | Posted on October 7th, 2010

New-generation electron tomography software commercially available

Shortly after its commercial release in May 2010, Digisens is pleased to announce the growing success of its novel electron tomography software DigiECT, which is the result of a two-year fruitful collaboration with Dr. Sergio Marco, Research Director Inserm U759, Institut Curie, Orsay, France. Moreover, DigiECT has been recently adopted by IPCMS-CNRS, a french nanotechnology institute based in Strasbourg, along with two other well-renowned research centers.

Using a TEM (Transmission Electron Microscope), electron tomography is an imaging technique for advanced 3D nanocharacterization in Life Sciences as well as Materials Sciences.

Requiring only a raw tilt-series at input, DigiECT is fully compliant with all TEM brands, all image acquisition modes (BF-TEM, BF-S/TEM, DF-S/TEM or EFTEM) and schemes (linear, Saxton or user-defined). Its core philosophy relies in allowing reduced 3D reconstruction times, targeted to better image quality using iterative algorithms - best suited to cope with the missing wedge - while minimising manual interventions to save time and prevent human erros.

"We were using free software for 3D reconstruction and it was really time-consuming, even on the GPU. The alignment step has often to be corrected manually. With our recent investment in DigiECT, way faster 3D reconstruction speeds will bring us more time to achieve high-quality results" states Dr. Ovidiu Ersen, responsible of the electron tomography facility at IPCMS-CNRS.

Marker-less alignment, multi-GPUs 3D reconstruction and ergonomic visualisation

The primary step consists in automatically aligning the images without markers such as gold beads then numerically determining the location of the tilt axis in 3D (x, y, z). "This process is more than a rudimentary cross-correlation step, in order to avoid any drifts which are likely to occur along the stack: we basically track virtual markers" explains Dr. Jean-Pierre Bruandet, Digisens' Chief Technical Officer.

As everyone knows, perfect alignment is mandarory prior to the subsequent 3D reconstruction phase. As for this, unique advantages of DigiECT's 3D reconstruction module are numerous.

With Digisens' exclusive multi-GPUs technology, DigiECT is first able to make use - at the same time - of several GPU boards (Graphical Processing Units) mounted in parallel, to split and resolve the 3D reconstruction process with unparalleled speeds. For instance, a 2048 x 2048 x 512 voxels volume (8.0 GB) is resolved in 31.2 seconds per iteration (SIRT) - including I/O - using 8 GPUs (Nvidia C2050). "With the recent advent of high-resolution cameras of 16 megapixels and beyond, we now encounter bottlenecks during the 3D reconstruction process. DigiECT overcomes this issue, offering incredible processing speeds" explains Dr. Marco.

Second, users can reach optimal convergence of the 3D reconstruction since they can adjust if desired the convergence speed, a major parameter even more important than the number of iterations when using iterative algorithms. Third, DigiECT proposes to 3D reconstruct a volume using OS-SART algorithm (Ordered-Subset Simultaneous Algebraic Reconstruction Technique) to get the best possible balance between the resolution of SART and noise robustness of SIRT.

Following both alignment and 3D reconstruction stages, end-users benefit from an intuitive, user-friendly visualisation tool, featuring uppermost quality volume and isosurface rendering, high-resolution oriented cut planes extraction, advanced measurements, certified surface extraction and seamless data import or export in numerous file formats.

For more details on DigiECT browse www.digisens.fr not to mention that Digisens' team will be pleased to answer your questions at +33 (0) 686 615 513 or by email at

####

About Digisens
Incroporated in 2002, Digisens is a high-tech software editor located in the French Alps between Geneva and Grenoble with world-renowned customers in research, industry and healthcare in Europe and North America. Thanks to its outstanding innovation capabilities and overall mastering of multi-GPUs programming, Digisens develops high value-added 3D-imaging software solutions for X-ray computed microtomography and nanotomography (DigiXCT & DigiHCT) as well as electron tomography (DigiECT).

For more information, please click here

Contacts:
Maxime Wiot
Business Development Manager
Tel: +33 (0) 686 615 513

Copyright © Digisens

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Dream Chip Technologies Presents First 22nm FD-SOI Silicon of New Automotive Driver Assistance SoC: Advanced driver assistance system (ADAS) computer vision SoC developed for European THINGS2DO project with working first silicon fabricated on GLOBALFOUNDRIES’ 22nm FD-SOI Platfor February 27th, 2017

Sandia use confined nanoparticles to improve hydrogen storage materials performance: Big changes from a small package for hydrogen storage February 25th, 2017

New nano approach could cut dose of leading HIV treatment in half February 24th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 2017

Software

Nanomechanics Inc. Continues Growth in Revenue and Market Penetration: Leading nanoindentation company reports continued growth in revenues and distribution channels on national and international scales December 27th, 2016

Companies Now Can Bring Fast and Accurate Nanoparticle Analysis In-House November 11th, 2016

SUN shares its latest achievements during the 3rd Annual Project Meeting November 1st, 2016

Leti to Tackle Tomorrow's Research Strategies with Stanford University’s SystemX Alliance: French R&D Center Is the First Research Institute to Join the Collaboration and Provides Bridges Between Academia and Industry, Leveraging Alliance’s Potential October 4th, 2016

Announcements

Dream Chip Technologies Presents First 22nm FD-SOI Silicon of New Automotive Driver Assistance SoC: Advanced driver assistance system (ADAS) computer vision SoC developed for European THINGS2DO project with working first silicon fabricated on GLOBALFOUNDRIES’ 22nm FD-SOI Platfor February 27th, 2017

Sandia use confined nanoparticles to improve hydrogen storage materials performance: Big changes from a small package for hydrogen storage February 25th, 2017

New nano approach could cut dose of leading HIV treatment in half February 24th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 2017

Tools

Atomic force imaging used to study nematodes: KFU bionanotechnology lab (head - Dr. Rawil Fakhrullin) has obtained 3-D images of nematodes' cuticles February 23rd, 2017

JPK selects compact tensile stage from Deben for their NanoWizard® AFM platform to broaden capabilities for materials characterisation February 22nd, 2017

Molecular phenomenon discovered by advanced NMR facility: Cutting edge technology has shown a molecule self-assembling into different forms when passing between solution state to solid state, and back again - a curious phenomenon in science - says research by the University of Wa February 22nd, 2017

Strem Chemicals and Dotz Nano Ltd. Sign Distribution Agreement for Graphene Quantum Dots Collaboration February 21st, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project