Water becomes, every day, more scarce. Reliable information about volume and quality in each watershed is important to management and proper planning of their use. Data-intensive science is being increasingly needed in this context. Associated analysis processes require handling the drainage network that represents a watershed. This paper presents an ongoing work that explores geographic waters...

The Fast watershed transform is an innovative approach that detects salient objects in an image. This transformation is entirely different from traditional watershed as it doesn’t depend on mathematical morphology. The flooding of water in the image is efficiently simulated using the FIFO queue of pixels. It starts with sorting image pixel according to their intensity levels and stores them in ...

This work is settled in the framework of abstract simplicial complexes. We propose a definition of a watershed and of a collapse for maps defined on pseudomanifolds of arbitrary dimension. Through an equivalence theorem, we establish a deep link between these two notions: any watershed can be obtained by collapse iterated until idempotence, and conversely any collapse iterated until idempotence...

The watershed transform is the method of choice for image segmentation in the field of mathematical morphology. We present a critical review of several definitions of the watershed transform and the associated sequential algorithms, and discuss various issues which often cause confusion in the literature. The need to distinguish between definition, algorithm specification and algorithm implemen...

Background. The mechanism of stroke in beta-thalassemia was reported previously as cardioembolic and hypercoagulable state. However, there is no report of watershed infarct in beta-thalassemia anemia. Method. We present an adult β-thalassemia major patient with manifest asymptomatic chronic left carotid occlusion who suffered watershed infarct. Result. In the presence of asymptomatic chronic le...

Problematiza-se a aplicabilidade dos princípios da mediação previstos na Lei 13.140/2015 no exercício consensualidade consoante aos impactos metodológicos como efetivo acesso à justiça. Parte-se que reconhecem meio de resolução conflitos. Como objeto, o No resultado, adequado solução Marco teórico em Cappelletti e Chai. Nas considerações, autocomposição apoia-se adesão do jurisdicionado obediên...

In this study, a computational algorithm has been developed to automatically detect human face and irises from color images captured by real-time camera. Haar cascade-based algorithm has been applied for simple and fast face detection. The face image is then converted into grayscale image. Three types of image processing techniques have been tested respectively to study its effect on the perfor...

The goal of this thesis is to design and build a system which automatically classifies an image of a flower for hundreds of flower species. The classification should be done within a reasonable time so that it is usable for a real-time computer vision application. The classification performance of the system is improved if only the flower region (foreground) of the image is considered, and the ...

A. Portavoce, G. Chai, L. Chow, and J. Bernardini Aix-Marseille Université, IM2NP, Faculté des Sciences et Techniques, Campus de Saint-Jérôme, Avenue Escadrille Normandie Niemen-Case 142, F-13397 Marseille Cedex, France CNRS, IM2NP (UMR 6242) Faculté des Sciences et Techniques, Campus de Saint-Jérôme, Avenue Escadrille Normandie Niemen-Case 142, F-13397 Marseille Cedex, France Department of Phy...

There are errors in affiliation 1 for authors Fu Wang, Zhiguo Chai, Jung Gao, Hui Wang, and Jihua Chen and affiliation 2 for author Zaixi Deng. Affiliation 1 should be: State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi’an, PR China Affiliation 2 should be: State Key Laboratory of Military Stomatology, Depart...