TITLE

Pose Estimation of 3D Free-Form Contours

AUTHOR(S)
Rosenhahn, Bodo; Perwass, Christian; Sommer, Gerald
PUB. DATE
May 2005
SOURCE
International Journal of Computer Vision;May2005, Vol. 62 Issue 3, p267
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this article we discuss the 2D-3D pose estimation problem of 3D free-form contours. In our scenario we observe objects of any 3D shape in an image of a calibrated camera. Pose estimation means to estimate the relative position and orientation (containing a rotation and translation) of the 3D object to the reference camera system. The fusion of modeling free-form contours within the pose estimation problem is achieved by using the conformal geometric algebra. The conformal geometric algebra is a geometric algebra which models entities as stereographically projected entities in a homogeneous model. This leads to a linear description of kinematics on the one hand and projective geometry on the other hand. To model free-form contours in the conformal framework we use twists to model cycloidal curves as twist-depending functions and interpretn-times nested twist generated curves as functions generated by 3D Fourier descriptors. This means, we use the twist concept to apply a spectral domain representation of 3D contours within the pose estimation problem. We will show that twist representations of objects can be numerically efficient and easily be applied to the pose estimation problem. The pose problem itself is formalized as implicit problem and we gain constraint equations, which have to be fulfilled with respect to the unknown rigid body motion. Several experiments visualize the robustness and real-time performance of our algorithms.
ACCESSION #
16311996

 

Related Articles

  • Shape-From-Silhouette Across Time Part I: Theory and Algorithms. Kong-man Cheung; Baker, Simon; Kanade, Takeo // International Journal of Computer Vision;May2005, Vol. 62 Issue 3, p221 

    Shape-From-Silhouette (SFS) is a shape reconstruction method which constructs a 3D shape estimate of an object using silhouette images of the object. The output of a SFS algorithm is known as the Visual Hull (VH). Traditionally SFS is either performed on static objects, or separately at each...

  • Motion Competition: A Variational Approach to Piecewise Parametric Motion Segmentation. Cremers, Daniel; Soatto, Stefano // International Journal of Computer Vision;May2005, Vol. 62 Issue 3, p249 

    We present a novel variational approach for segmenting the image plane into a set of regions of parametric motion on the basis of two consecutive frames from an image sequence. Our model is based on a conditional probability for the spatio-temporal image gradient, given a particular velocity...

  • Virtual Finger takes scientists through 3D landscapes.  // Engineer (Online Edition);7/15/2014, p1 

    The article reports on the development of researchers in the U.S. of the Virtual Finger, an imaging analysis software that enables scientists to digitally navigate three-dimensional (3D) images. It is inferred that the new technology, which is profiled in Nature Communications, can make 3D...

  • MODELOWANIE 3D NA PODSTAWIE FOTOGRAFII AMATORSKICH. Nowak, Edward; Nowak, Joanna // Acta Scientiarum Polonorum: Geodesia et Descriptio Terrarum;2009, Vol. 8 Issue 2, p39 

    Modelling three-dimensional objects (e.g. historical buildings) based on nonmetric digital images is a complex task because the internal orientation and radial distortion parameters are unstable and unknown. In this paper, by analysing the mathematical basis of the central projection, the...

  • A Model-Selection Framework for Multibody Structure-and-Motion of Image Sequences. Schindler, Konrad; Suter, David; Wang, Hanzi // International Journal of Computer Vision;Sep2008, Vol. 79 Issue 2, p159 

    Given an image sequence of a scene consisting of multiple rigidly moving objects, multi-body structure-and-motion (MSaM) is the task to segment the image feature tracks into the different rigid objects and compute the multiple-view geometry of each object. We present a framework for multibody...

  • Fundamentals of 3-D Machine Vision. Dechow, David // Quality;Jan2014, Vol. 53 Issue 1, p14 

    The article provides an overview of the key concepts, strategies, and uses of three-dimensional (3-D) machine vision. It says that the basic job for 3-D imaging in machine vision is to give height information in an environment relative to the arbitrary or fixed plane. It reviews three imaging...

  • Skin Texture Modeling. Cula, Oana G.; Dana, Kristin J.; Murphy, Frank P.; Rao, Babar K. // International Journal of Computer Vision;Apr2005, Vol. 62 Issue 1/2, p97 

    Quantitative characterization of skin appearance is an important but difficult task. The skin surface is a detailed landscape, with complex geometry and local optical properties. In addition, skin features depend on many variables such as body location (e.g. forehead, cheek), subject parameters...

  • Computer Vision Application in Measuring Fish Length. Halawani, Sami M.; Sidek, Zailani Mohamed // International Journal of Computer Science & Network Security;Jul2012, Vol. 3 Issue 7, p80 

    This paper demonstrates the application of computer vision in marine technology, vis-à-vis, producing a 3D model from the fish image data. In many parts of the world, especially in Malaysia, measuring the fish length helps identify the fish species population for the purpose of fish...

  • Stereoscopic high-speed imaging using additive colors. Sankin, Georgy N.; Piech, David; Zhong, Pei // Review of Scientific Instruments;Apr2012, Vol. 83 Issue 4, p043701 

    An experimental system for digital stereoscopic imaging produced by using a high-speed color camera is described. Two bright-field image projections of a three-dimensional object are captured utilizing additive-color backlighting (blue and red). The two images are simultaneously combined on a...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics