Andrea Gomes Campos Bianchi

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One potential solution to reduce the concentration of carbon dioxide in the atmosphere is the geologic storage of captured CO<sub>2</sub> in underground rock formations, also known as carbon sequestration. There is ongoing research to guarantee that this process is both efficient and safe. We describe tools that provide measurements of media porosity, and(More)
We propose and implement a computer vision algorithm for detecting individual cells, including the ability to distinguish subcellular compartments, such as nucleus and cytoplasm. Our approach consists of three main steps: (a) cellular mass estimation, and (b) nuclei detection through superpixel representation and, (c) cytoplasm detection through nuclear(More)
A careful comparison of three numeric techniques for estimation of the curvature along spatially quantized contours is reported. Two of the considered techniques are based on the Fourier transform (operating over 1D and 2D signals) and Gaussian regularization required to attenuate the spatial quantization noise. While the 1D approach has been reported(More)
We propose and implement a computer vision algorithm for detecting individual cells, including the ability to distinguish subcellular compartments, such as nucleus and cytoplasm. Our approach consists of three main steps: (a) cellular mass estimation, and (b) nuclei detection through superpixel representation and, (c) cytoplasm detection through nuclear(More)
A powerful framework for the representation, characterization and analysis of two-dimensional shapes, with special attention given to neurons, is presented. This framework is based on a recently reported approach to scale space skeletonization and respective reconstructions by using label propagation and the exact distance transform. This methodology allows(More)
Cervical cancer screening is one of the most widespread tests in the world, and the acquisition of digital images of Pap smears is about to become part of the laboratories routine. The ability to collect these standard exam data has increased drastically, and available tools for image analysis and quantification are not accurate and/or customized enough to(More)
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This paper presents a mathematical formulation of neural shape changes. The dynamics of the model for the evolution of the elastic cell membrane is based on a system of coupled springs under the action of internal and external forces, based on the biology of neural development and growth. Although this article presents a simple implementation, improvements(More)
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