Graylevel Watershed
Graylevel Watershed An ImageJ plugin to apply watershed segmentation on graylevel images Written by Daniel Sage at the Biomedical Image Group, EPFL, Switzerland Outline This Java plugin is able to segment an image using the watershed algorithm by directly flooding graylevel images. This implementation is in contrast with the classical approach working on the distance map image obtaining after thre
A chip placed under the skin for more precise medicine
It’s only a centimetre long, it’s placed under your skin, it’s powered by a patch on the surface of your skin and it communicates with your mobile phone. The new biosensor chip developed at EPFL is capable of simultaneously monitoring the concentration of a number of molecules, such as glucose and cholesterol, and certain drugs. The future of medicine lies in ever greater precision, not only when
Digital Typography Publications
Next Generation Typeface Representations: Revisiting Parametric Fonts T. Hassan, C. Hu, R.D. Hersch ACM DocEng 2010 conference, Sept. 2010, Manchester, UK, pp. 181-184 Abstract Full paper: PDF 750 KB Parameterizable Fonts Based on Shape Components C. Hu, R.D. Hersch IEEE Computer Graphics and Applications, Vol. 21, No. 3, May/June 2001, 70-85 Abstract Full paper: PDF 69 KB Perceptually-Tuned Grays
Regions report
Region-based off-heap memory for Scala Technical report Denys Shabalin, Martin Odersky first.last@epfl.ch February 2, 2015 Introduction At the moment, the Scala programming language offers a single memory management model for heap-allocated memory: fully automatic garbage collection. In theory, this approach lets the developer completely forget about memory management as GC will automatically deal
Dependent Object Types - Towards a foundation for Scala's type system
Dependent Object Types Towards a foundation for Scala’s type system Nada Amin, Adriaan Moors, Martin Odersky FOOL 2012 October 22, 2012 1 DOT: Dependent Object Types The DOT calculus proposes a new type-theoretic foundation for Scala and languages like it. It models I path-dependent types I abstract type members I mixture of nominal and structural typing via refinement types It does not model I in
Martin Odersky's Talks
Recent Talks - Martin Odersky Fighting Bit Rot with Types? Keynote, AOSD 2010. Scala: How to make best use of functions and objects Tutorial slides, ACM Symposium on Applied Computing 2010. The Scala Experiment -- Can We Provide Better Language Support for Component Systems? Google TechTalk, November 2006. in Acrobat (.pdf) format. A Video is available. Tackling Concurreny -- Language or Library?
Puzzles | IVRL
Our tool creates custom jigsaw puzzles that are aesthetically interesting and challenging to assemble. Taking as input a user-defined curve, our method optimizes for puzzle cuts that follow the main color lines of the image, subject to interlocking, intersection, and minimum width constraints. The resulting puzzle is physically realizable; it can be fabricated by current laser cutters and assemble
Frequency-tuned Salient Region Detection
Radhakrishna Achanta, Sheila Hemami, Francisco Estrada, and Sabine Susstrunk Abstract Detection of visually salient image regions is useful for applications like object segmentation, adaptive compression, and object recognition. In this paper, we introduce a method for salient region detection that outputs full resolution saliency maps with well-defined boundaries of salient objects. These boundar
LARA – Lab for Automated Reasoning and Analysis -
Welcome to the phantm wiki! Phantm analyzes PHP code statically (with optional help from dynamic instrumention). It has found many errors in real PHP applications. News 05.10.2012: phantm 1.0.7 has been released, see Releases for more details. You'll find more information in the following sections dedicated on various aspects of phantm:
Geometric Computing Laboratory
Our research aims at empowering creators. We develop efficient simulation and optimization algorithms to build computational design methodologies for advanced material systems and digital fabrication technologies. Mathematical reasoning, geometric abstractions, and powerful numerical methods are key ingredients in our work. We pursue a holistic approach in that we design and fabricate functional p
Chair of Computational Mathematics and Simulation Science
Director of Chair: Professor Jan S Hesthaven The research activities in the Chair focuses on the development, analysis and application of high-order accurate computational methods for time-dependent partial differential equations. In recent years this has included research activities in discontinuous Galerkin and spectral methods, certified reduced basis methods, methods of uncertainty quantificat
R: Truncated Normal distribution
Description Density, distribution function, quantile function and random generation for the truncated Normal distribution with mean equal to mean and standard deviation equal to sd before truncation, and truncated on the interval [lower, upper]. Usage dtnorm(x, mean=0, sd=1, lower=-Inf, upper=Inf, log = FALSE) ptnorm(q, mean=0, sd=1, lower=-Inf, upper=Inf, lower.tail = TRUE, log.p = FALSE) qtnorm(
Super-resolution microscopy reveals 3D organization of genes
Super-resolution imaging of a DNA fragment containing nine Hox genes © Denis Duboule/EPFL EPFL scientists have used super-resolution microscopy to study in unprecedented detail the organizational structure of genes that regulate the development of the embryo. Image: Super-resolution imaging (STORM) of a fragment of DNA containing nine genes (Hoxd genes). The three representative shapes show the ke
Testing Statistical Hypotheses Statistical Theory Victor Panaretos Ecole Polytechnique F´ed´erale de Lausanne Statistical Theory (Week 10) Hypothesis Testing 1 / 19 1 Contrasting Theories With Experimental Evidence 2 Hypothesis Testing Setup 3 Type I v
Testing Statistical Hypotheses Statistical Theory Victor Panaretos Ecole Polytechnique F´ed´erale de Lausanne Statistical Theory (Week 10) Hypothesis Testing 1 / 19 1 Contrasting Theories With Experimental Evidence 2 Hypothesis Testing Setup 3 Type I vs Type II Error 4 The Neyman-Pearson Setup 5 Optimality in the Neyman Pearson Setup Statistical Theory (Week 10) Hypothesis Testing 2 / 19 Using Da
R: R interface to the MySQL database
Description The functions in this package allow you interact with one or more MySQL databases from R. Overview A typical usage of the R-MySQL interface is: Connect and authenticate to one or more MySQL databases: con <- dbConnect(MySQL(), group = "lasers") con2 <- dbConnect(MySQL(), user="opto", password="pure-light", dbname="lasers", host="merced") List tables and fields in a table: dbListTables(
Scala.js Semantics - and how they support performance and JavaScript interop
Sébastien Doeraene @sjrdoeraene June 10, 2015 -- Scala Days Amsterdam LAMP, lamp.epfl.ch École polytechnique fédérale de Lausanne Compiling to JavaScript Hundreds of languages compile to JavaScript Languages that don't compile to JS are weird Compiling to JavaScript: Problem solved! What are the hard parts, then? The hard parts Interoperability with JavaScript code Performance Rely on Semantics WA
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superpixels
http://lampwww.epfl.ch/papers/idealhashtrees.pdf