All Outputs (10)

Higher-order active contour energies for gap closure (2007)
Journal Article
Rochery, M., Jermyn, I., & Zerubia, J. (2007). Higher-order active contour energies for gap closure. Journal of Mathematical Imaging and Vision, 29(1), 1-20. https://doi.org/10.1007/s10851-007-0021-x

One of the main difficulties in extracting line networks from images, and in particular road networks from remote sensing images, is the existence of interruptions in the data caused, for example, by occlusions. These can lead to gaps in the extracte... Read More about Higher-order active contour energies for gap closure.

A Phase Field Model Incorporating Generic and Specific Prior Knowledge Applied to Road Network Extraction from VHR Satellite Images (2007)
Presentation / Conference Contribution
Peng, T., Jermyn, I., Prinet, V., Zerubia, J., & Hu, B. (2007, September). A Phase Field Model Incorporating Generic and Specific Prior Knowledge Applied to Road Network Extraction from VHR Satellite Images. Presented at British Machine Conference 2007, Warwick

We address the problem of updating road maps in dense urban areas by extracting the main road network from a very high resolution (VHR) satellite image. Our model of the region occupied by the road network in the image is innovative. It incorporates... Read More about A Phase Field Model Incorporating Generic and Specific Prior Knowledge Applied to Road Network Extraction from VHR Satellite Images.

A `Gas of Circles' Phase Field Model and its Application to Tree Crown Extraction (2007)
Presentation / Conference Contribution
Horváth, P., & Jermyn, I. (2007, September). A `Gas of Circles' Phase Field Model and its Application to Tree Crown Extraction. Presented at 15th European Signal Processing Conference (EUSIPCO 2007), Poznan

The problem of extracting the region in the image domain corresponding to an a priori unknown number of circular objects occurs in several domains. We propose a new model of a ‘gas of circles’, the ensemble of regions in the image domain composed of... Read More about A `Gas of Circles' Phase Field Model and its Application to Tree Crown Extraction.

A New Phase Field Model of a `Gas of Circles' for Tree Crown Extraction from Aerial Images (2007)
Presentation / Conference Contribution
Horváth, P., & Jermyn, I. (2007, August). A New Phase Field Model of a `Gas of Circles' for Tree Crown Extraction from Aerial Images. Presented at 12th International Conference(CAIP 2007), Vienna

We describe a model for tree crown extraction from aerial images, a problem of great practical importance for the forestry industry. The novelty lies in the prior model of the region occupied by tree crowns in the image, which is a phase field versio... Read More about A New Phase Field Model of a `Gas of Circles' for Tree Crown Extraction from Aerial Images.

Removing Shape-Preserving Transformations in Square-Root Elastic (SRE) Framework for Shape Analysis of Curves (2007)
Presentation / Conference Contribution
Joshi, S., Klassen, E., Srivastava, A., & Jermyn, I. (2007, August). Removing Shape-Preserving Transformations in Square-Root Elastic (SRE) Framework for Shape Analysis of Curves. Presented at 6th International Conference on Energy Minimization Methods in Computer Vision and Pattern Recognition, Ezhou

This paper illustrates and extends an efficient framework, called the square-root-elastic (SRE) framework, for studying shapes of closed curves, that was first introduced in [2]. This framework combines the strengths of two important ideas - elastic... Read More about Removing Shape-Preserving Transformations in Square-Root Elastic (SRE) Framework for Shape Analysis of Curves.

A Novel Representation for Riemannian Analysis of Elastic Curves in R^{n} (2007)
Presentation / Conference Contribution
Joshi, S., Klassen, E., Srivastava, A., & Jermyn, I. (2007, June). A Novel Representation for Riemannian Analysis of Elastic Curves in R^{n}. Presented at 2007 IEEE Conference on Computer Vision and Pattern Recognition, Minneapolis

We propose a novel representation of continuous, closed curves in Rn that is quite efficient for analyzing their shapes. We combine the strengths of two important ideas-elastic shape metric and path-straightening methods - in shape analysis and prese... Read More about A Novel Representation for Riemannian Analysis of Elastic Curves in R^{n}.

Indexing satellite images with features computed from man-made structures on the Earth’s surface (2007)
Presentation / Conference Contribution
Bhattacharya, A., Roux, M., Maitre, H., Jermyn, I., Descombes, X., & Zerubia, J. (2007, June). Indexing satellite images with features computed from man-made structures on the Earth’s surface. Presented at 2007 International Workshop on Content-Based Multimedia Indexing, Bordeaux

Indexing and retrieval from remote sensing image databases relies on the extraction of appropriate information from the data about the entity of interest (e.g. land cover type) and on the robustness of this extraction to nuisance variables. Other ent... Read More about Indexing satellite images with features computed from man-made structures on the Earth’s surface.

Riemannian Analysis of Probability Density Functions with Applications in Vision (2007)
Presentation / Conference Contribution
Joshi, S., Srivastava, A., & Jermyn, I. (2007, June). Riemannian Analysis of Probability Density Functions with Applications in Vision. Presented at IEEE Conference on Computer Vision and Pattern Recognition 2007, Minneapolis

Applications in computer vision involve statistically analyzing an important class of constrained, nonnegative functions, including probability density functions (in texture analysis), dynamic time-warping functions (in activity analysis), and re-par... Read More about Riemannian Analysis of Probability Density Functions with Applications in Vision.

Urban Road Extraction from VHR Images Using a Multiscale Image Model and a Phase Field Model of Network Geometry (2007)
Presentation / Conference Contribution
Peng, T., Jermyn, I., Prinet, V., & Zerubia, J. (2007, April). Urban Road Extraction from VHR Images Using a Multiscale Image Model and a Phase Field Model of Network Geometry. Presented at 2007 Urban Remote Sensing Joint Event, Paris

This paper addresses the problem of automatically extracting the main road network in a dense urban area from a very high resolution optical satellite image using a variational approach. The model energy has two parts: a phase field higher-order acti... Read More about Urban Road Extraction from VHR Images Using a Multiscale Image Model and a Phase Field Model of Network Geometry.

Computing Statistics from Man-Made Structures on the Earth's Surface for Indexing Satellite Images (2007)
Journal Article
Bhattacharya, A., Roux, M., Maitre, H., Jermyn, I., Descombes, X., & Zerubia, J. (2007). Computing Statistics from Man-Made Structures on the Earth's Surface for Indexing Satellite Images. International journal of simulation modelling, 6(2), 73-83

Indexing and retrieval from remote sensing image databases relies on the extraction of appropriate information from the data about the entity of interest (e.g. land cover type) and on the robustness of this extraction to nuisance variables. Other ent... Read More about Computing Statistics from Man-Made Structures on the Earth's Surface for Indexing Satellite Images.