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Automated cartographic annotation of digital images

Publications associées (55)

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Image Processing Education

Michaël Unser, Daniel Sage

This chapter describes tools and techniques that facilitate a gentle introduction to fascinating concepts in digital image processing from four leading universities. Equipped with informative visualizations and a user-friendly interfaces, these modules are ...

Elsevier Academic Press2005

Experimental and simulation-based approaches to assess bidirectional properties of complex fenestration systems

Marilyne Andersen

A serious effort has been made in developing accurate and efficient bidirectional goniophotometric devices for detailed studies of Complex Fenestration Systems, capable of measuring BTDFs and/or BRDFs in an appropriate way. The existing instruments are alm ...

2005

Microoptical telescope compound eye

Toralf Scharf

A new optical concept for compact digital image acquisition devices with large field of view is developed and proofed experimentally. Archetypes for the imaging system are compound eyes of small insects and the Gabor-Superlens. A paraxial 3×3 matrix formal ...

2005

Virtual Sensor Design

Sabine Süsstrunk, Roberto Costantini

We present a virtual digital camera sensor, whose aim is to simulate a real (physical) image capturing sensor.To accomplish this task, the virtual sensor operates in two steps. First, it accepts a physical description of agiven scene and simulates the enti ...

2004

Shadow segmentation and tracking in real-world conditions

Elena Salvador

Visual information, in the form of images and video, comes from the interaction of light with objects. Illumination is a fundamental element of visual information. Detecting and interpreting illumination effects is part of our everyday life visual experien ...

EPFL2004

Innovative bidirectional video-goniophotometer for advanced fenestration systems

Marilyne Andersen

Efficient collection and redistribution of the direct and diffuse components of daylight in buildings remains a major objective of advanced fenestration systems. Such systems, including novel solar blinds, new glazing or coating materials and daylight-redi ...

EPFL2004

Mapping colour in image stitching applications

Sabine Süsstrunk, David Hasler

Digitally, panoramic pictures can be assembled from several individual, overlapping photographs. While the geometric alignment of these photographs has retained a lot of attention from the computer vision community, the mapping of colour, i.e. the correcti ...

2004

Protecting identity documents with a just noticeable microstructure

Roger Hersch

The development of plastic card printers has led to the widespread use of identity documents printed on plastic cards, such as ID cards, driving licenses and access key cards. This paper presents a new security feature based on a technique for embedding a ...

SPIE-Int. Soc. Opt. Eng2002

Experimental assessment of bi-directional transmission distribution functions using digital imaging techniques

Marilyne Andersen, Jean-Louis Scartezzini, Christian Roecker, Laurent Michel

Many daylighting applications require a precise knowledge of the directional transmission features of advanced fenestration materials. These photometric properties are described by a bi-directional transmission distribution function (BTDF), whose experimen ...

Elsevier2001

Shadow identification and classification using invariant color models

Touradj Ebrahimi, Elena Salvador

A novel approach to shadow detection is presented in this paper. The method is based on the use of invariant color models to identify and to classify shadows in digital images. The procedure is divided into two levels: first, shadow candidate regions are e ...

SPIE2001