Outputs (59)

Riemannian Analysis of Probability Density Functions with Applications in Vision (2007)
Conference Proceeding
Joshi, S., Srivastava, A., & Jermyn, I. (2007). Riemannian Analysis of Probability Density Functions with Applications in Vision. In 2007 IEEE Conference on Computer Vision and Pattern Recognition ; proceedings (1664-1671). https://doi.org/10.1109/cvpr.2007.383188

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.

Indexing satellite images with features computed from man-made structures on the Earth’s surface (2007)
Conference Proceeding
Bhattacharya, A., Roux, M., Maitre, H., Jermyn, I., Descombes, X., & Zerubia, J. (2007). Indexing satellite images with features computed from man-made structures on the Earth’s surface. In 2007 International Workshop on Content-Based Multimedia Indexing ; proceedings (244-250). https://doi.org/10.1109/cbmi.2007.385418

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.

Urban Road Extraction from VHR Images Using a Multiscale Image Model and a Phase Field Model of Network Geometry (2007)
Conference Proceeding
Peng, T., Jermyn, I., Prinet, V., & Zerubia, J. (2007). Urban Road Extraction from VHR Images Using a Multiscale Image Model and a Phase Field Model of Network Geometry. In 2007 Urban Remote Sensing Joint Event ; proceedings (1-5). https://doi.org/10.1109/urs.2007.371835

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.

An improved `gas of circles' higher-order active contour model and its application to tree crown extraction (2006)
Conference Proceeding
Horvath, P., Jermyn, I., Kato, Z., & Zerubia, J. (2006). An improved `gas of circles' higher-order active contour model and its application to tree crown extraction. In P. K. Kalra, & S. Peleg (Eds.), Computer Vision, Graphics and Image Processing: 5th Indian Conference, ICVGIP 2006, Madurai, India, December 13-16, 2006 ; proceedings (152-161). https://doi.org/10.1007/11949619_14

A central task in image processing is to find the region in the image corresponding to an entity. In a number of problems, the region takes the form of a collection of circles, e.g. tree crowns in remote sensing imagery; cells in biological and medic... Read More about An improved `gas of circles' higher-order active contour model and its application to tree crown extraction.

Computing statistics from a graph representation of road networks in satellite images for indexing and retrieval (2006)
Conference Proceeding
Bhattacharya, A., Jermyn, I., Descombes, X., & Zerubia, J. (2006). Computing statistics from a graph representation of road networks in satellite images for indexing and retrieval. In J. Tavares, & R. Jorge (Eds.), Computational modelling of objects represented in images : fundamentals, methods and applications : proceedings of the International Symposium CompIMAGE 2006 (Coimbra, Portugal, 20-21 October 2006) (97-100)

Retrieval from remote sensing image archives relies on the extraction of pertinent information from the data about the entity of interest (e.g. land cover type), and on the robustness of this extraction to nuisance variables (e.g. illumination). Most... Read More about Computing statistics from a graph representation of road networks in satellite images for indexing and retrieval.

Nonlinear models for the statistics of adaptive wavelet packet coefficients of texture (2006)
Conference Proceeding
Aubray, J., Jermyn, I., & Zerubia, J. (2006). Nonlinear models for the statistics of adaptive wavelet packet coefficients of texture. In 14th European Signal Processing Conference, 2006 (1-5)

Probabilistic adaptive wavelet packet models of texture provide new insight into texture structure and statistics by focusing the analysis on significant structure in frequency space. In very adapted subbands, they have revealed new bimodal statistic... Read More about Nonlinear models for the statistics of adaptive wavelet packet coefficients of texture.

A higher-order active contour model for tree detection (2006)
Conference Proceeding
Horvath, P., Jermyn, I., Kato, Z., & Zerubia, J. (2006). A higher-order active contour model for tree detection. In Y. Y. Tang, S. P. Wang, G. Lorette, D. S. Yeung, & H. Yan (Eds.), 18th International Conference on Pattern Recognition (130-133). https://doi.org/10.1109/icpr.2006.79

We present a model of a `gas of circles', the ensemble of regions in the image domain consisting of an unknown number of circles with approximately fixed radius and short range repulsive interactions, and apply it to the extraction of tree crowns fro... Read More about A higher-order active contour model for tree detection.

Phase field models and higher-order active contours (2005)
Conference Proceeding
Rochery, M., Jermyn, I., & Zerubia, J. (2005). Phase field models and higher-order active contours. In Tenth IEEE International Conference on Computer Vision : proceedings : Beijing, China, October 17-20, 2005 (970-976). https://doi.org/10.1109/iccv.2005.189

The representation and modelling of regions is an important topic in computer vision. In this paper, we represent a region via a level set of a 'phase field' function. The function is not constrained, e.g. to be a distance function; nevertheless, pha... Read More about Phase field models and higher-order active contours.

Texture-adaptive mother wavelet selection for texture analysis (2005)
Conference Proceeding
Abhayaratne, G., Jermyn, I., & Zerubia, J. (2005). Texture-adaptive mother wavelet selection for texture analysis. In 2005 International Conference on Image Processing (ICIP) : September 11-14, 2005, Genova, Italy (1290-1293). https://doi.org/10.1109/icip.2005.1530299

Classification results obtained using wavelet-based texture analysis techniques vary with the choice of mother wavelet used in the methodology. We discuss the use of mother wavelet filters as parameters in a probabilistic approach to texture analysis... Read More about Texture-adaptive mother wavelet selection for texture analysis.

New higher-order active contour energies for network extraction (2005)
Conference Proceeding
Rochery, M., Jermyn, I., & Zerubia, J. (2005). New higher-order active contour energies for network extraction. In 2005 International Conference on Image Processing (ICIP) : September 11-14, 2005, Genova, Italy (822-825). https://doi.org/10.1109/icip.2005.1530182

Using the framework of higher-order active contours, we present a new quadratic continuation energy for the extraction of line networks (e.g. road, hydrographic, vascular) in the presence of occlusions. Occlusions create gaps in the data that frequen... Read More about New higher-order active contour energies for network extraction.