The representation of an image as a flow network has gained an increased interest in research for... more The representation of an image as a flow network has gained an increased interest in research for the 2D and 3D segmentation field. One of these segmentation approaches consists in applying a minimum cut algorithm to separate the image in background and foreground. The most remarkable algorithm to segment a 2D image using this approach is GrabCut. This article presents a novel segmentation of 3D image using GrabCut implemented on the GPU. We proposed a scheme where a volume dataset is used as input, instead of a 2D image. The original GrabCut algorithm is adapted to be executed on the GPU efficiently. Our algorithm is fully parallel and is optimized to run on Nvidia CUDA. Tests performed showed excellent results with different volumes, reducing the computation time and maintaining a correct separation background/foreground.
Abstract. Data gloves are devices with a set of sensors for obtaining information about the movem... more Abstract. Data gloves are devices with a set of sensors for obtaining information about the movement of the hand and its fingers. In Virtual Reality, data gloves are widely used as input devices for its capability to interact with the computer for application development. Currently, there are many such devices, which are offered by specialized commercial companies at high costs. Nevertheless, in recent years low-cost solutions for construction and software development kits for data gloves have been available. This paper presents the design and development of a low-cost data glove system to be used in virtual reality applications based on finger movements. The design of the glove is presented as a prototype based on computer vision algorithms in order to determine the relative position of the fingers. The manufactured data glove requires only inexpensive materials and a simple webcam for motion tracking. In the performed tests, our solution shows good results in the task of tracking ...
Data gloves are devices with a set of sensors for obtaining information about the movement of the... more Data gloves are devices with a set of sensors for obtaining information about the movement of the hand and its fingers. In Virtual Reality, data gloves are widely used as input devices for its capability to interact with the computer for application development. Currently, there are many such devices, which are offered by specialized commercial companies at high costs. Nevertheless, in recent years low-cost solutions for construction and software development kits for data gloves have been available. This paper presents the design and development of a low-cost data glove system to be used in virtual reality applications based on finger movements. The design of the glove is presented as a prototype based on computer vision algorithms in order to determine the relative position of the fingers. The manufactured data glove requires only inexpensive materials and a simple webcam for motion tracking. In the performed tests, our solution shows good results in the task of tracking the moveme...
P. Temoche, E. Ramirez, R. Carmona. "3D GrabCut: Una segmentacion de volumenes basada en la ... more P. Temoche, E. Ramirez, R. Carmona. "3D GrabCut: Una segmentacion de volumenes basada en la tecnica GrabCut utilizando la GPU". Memorias del II Simposio Cientifico y Tecnologico en Computacion (SCTC 2012). O. Rodriguez, E. Coto (Eds.), pp. 16-23. Caracas, Venezuela. 2012.
Data gloves are devices with a set of sensors for obtaining information about the movement of the... more Data gloves are devices with a set of sensors for obtaining information about the movement of the hand and its fingers. In Virtual Reality, data gloves are widely used as input devices for its capability to interact with the computer for application development. Currently, there are many such devices, which are offered by specialized commercial companies at high costs. Nevertheless, in recent years low-cost solutions for construction and software development kits for data gloves have been available. This paper presents the design and development of a low-cost data glove system to be used in virtual reality applications based on finger movements. The design of the glove is presented as a prototype based on computer vision algorithms in order to determine the relative position of the fingers. The manufactured data glove requires only inexpensive materials and a simple webcam for motion tracking. In the performed tests, our solution shows good results in the task of tracking the moveme...
Data gloves are devices with a set of sensors for obtaining information about the movement of the... more Data gloves are devices with a set of sensors for obtaining information about the movement of the hand and its fingers. In Virtual Reality, data gloves are widely used as input devices for its capability to interact with the computer for application development. Currently, there are many such devices, which are offered by specialized commercial companies at high costs. Nevertheless, in recent years low-cost solutions for construction and software development kits for data gloves have been available. This paper presents the design and development of a low-cost data glove system to be used in virtual reality applications based on finger movements. The design of the glove is presented as a prototype based on computer vision algorithms in order to determine the relative position of the fingers. The manufactured data glove requires only inexpensive materials and a simple webcam for motion tracking. In the performed tests, our solution shows good results in the task of tracking the moveme...
La segmentación de imágenes consiste en obtener una región de interés dentro de un espacio más am... more La segmentación de imágenes consiste en obtener una región de interés dentro de un espacio más amplio. Grab-Cut es una técnica reciente de segmentación 2D que obtiene excelentes resultados. Esta se basa en representar la imagen como un grafo de flujo, y luego aplicar un algoritmo de corte mínimo en el grafo y separar la imagen de fondo (background) y la región de interés (foreground). Este artículo presenta un enfoque novedoso para segmentar volúmenes basado en GrabCut empleando un esquema de algoritmo paralelo que se ejecuta en la GPU denominado 3D GrabCut. El grafo es creado completamente en la GPU y se ejecuta sobre la arquitectura CUDA de NVIDIA(R). Las pruebas demuestran excelentes resultados con los volúmenes de prueba, arrojando tiempos inferiores que su ejecución en la CPU y una separación adecuada background/foreground.
Data gloves are devices with a set of sensors for obtaining information about the movement of the... more Data gloves are devices with a set of sensors for obtaining information about the movement of the hand and its fingers. In Virtual Reality, data gloves are widely used as input devices for its capability to interact with the computer for application development. Currently, there are many such devices, which are offered by specialized commercial companies at high costs. Nevertheless,
The representation of an image as a ow network has gained an increased interest in research for t... more The representation of an image as a ow network has gained an increased interest in research for the 2D and 3D segmentation eld. One of these segmentation approaches consists in applying a minimum cut algorithm to separate the image in background and foreground. The most remarkable algorithm to segment a 2D image using this approach is GrabCut. This article presents a novel segmentation of 3D image using GrabCut implemented on the GPU. We proposed a scheme where a volume dataset is used as input, instead of a 2D image. The original GrabCut algorithm is adapted to be executed on the GPU eciently. Our algorithm is fully parallel and is optimized to run on Nvidia CUDA. Tests performed showed excellent results with di erent volumes, reducing the computation time and maintaining a correct separation background/foreground.
The representation of an image as a flow network has gained an increased interest in research for... more The representation of an image as a flow network has gained an increased interest in research for the 2D and 3D segmentation field. One of these segmentation approaches consists in applying a minimum cut algorithm to separate the image in background and foreground. The most remarkable algorithm to segment a 2D image using this approach is GrabCut. This article presents a novel segmentation of 3D image using GrabCut implemented on the GPU. We proposed a scheme where a volume dataset is used as input, instead of a 2D image. The original GrabCut algorithm is adapted to be executed on the GPU efficiently. Our algorithm is fully parallel and is optimized to run on Nvidia CUDA. Tests performed showed excellent results with different volumes, reducing the computation time and maintaining a correct separation background/foreground.
Abstract. Data gloves are devices with a set of sensors for obtaining information about the movem... more Abstract. Data gloves are devices with a set of sensors for obtaining information about the movement of the hand and its fingers. In Virtual Reality, data gloves are widely used as input devices for its capability to interact with the computer for application development. Currently, there are many such devices, which are offered by specialized commercial companies at high costs. Nevertheless, in recent years low-cost solutions for construction and software development kits for data gloves have been available. This paper presents the design and development of a low-cost data glove system to be used in virtual reality applications based on finger movements. The design of the glove is presented as a prototype based on computer vision algorithms in order to determine the relative position of the fingers. The manufactured data glove requires only inexpensive materials and a simple webcam for motion tracking. In the performed tests, our solution shows good results in the task of tracking ...
Data gloves are devices with a set of sensors for obtaining information about the movement of the... more Data gloves are devices with a set of sensors for obtaining information about the movement of the hand and its fingers. In Virtual Reality, data gloves are widely used as input devices for its capability to interact with the computer for application development. Currently, there are many such devices, which are offered by specialized commercial companies at high costs. Nevertheless, in recent years low-cost solutions for construction and software development kits for data gloves have been available. This paper presents the design and development of a low-cost data glove system to be used in virtual reality applications based on finger movements. The design of the glove is presented as a prototype based on computer vision algorithms in order to determine the relative position of the fingers. The manufactured data glove requires only inexpensive materials and a simple webcam for motion tracking. In the performed tests, our solution shows good results in the task of tracking the moveme...
P. Temoche, E. Ramirez, R. Carmona. "3D GrabCut: Una segmentacion de volumenes basada en la ... more P. Temoche, E. Ramirez, R. Carmona. "3D GrabCut: Una segmentacion de volumenes basada en la tecnica GrabCut utilizando la GPU". Memorias del II Simposio Cientifico y Tecnologico en Computacion (SCTC 2012). O. Rodriguez, E. Coto (Eds.), pp. 16-23. Caracas, Venezuela. 2012.
Data gloves are devices with a set of sensors for obtaining information about the movement of the... more Data gloves are devices with a set of sensors for obtaining information about the movement of the hand and its fingers. In Virtual Reality, data gloves are widely used as input devices for its capability to interact with the computer for application development. Currently, there are many such devices, which are offered by specialized commercial companies at high costs. Nevertheless, in recent years low-cost solutions for construction and software development kits for data gloves have been available. This paper presents the design and development of a low-cost data glove system to be used in virtual reality applications based on finger movements. The design of the glove is presented as a prototype based on computer vision algorithms in order to determine the relative position of the fingers. The manufactured data glove requires only inexpensive materials and a simple webcam for motion tracking. In the performed tests, our solution shows good results in the task of tracking the moveme...
Data gloves are devices with a set of sensors for obtaining information about the movement of the... more Data gloves are devices with a set of sensors for obtaining information about the movement of the hand and its fingers. In Virtual Reality, data gloves are widely used as input devices for its capability to interact with the computer for application development. Currently, there are many such devices, which are offered by specialized commercial companies at high costs. Nevertheless, in recent years low-cost solutions for construction and software development kits for data gloves have been available. This paper presents the design and development of a low-cost data glove system to be used in virtual reality applications based on finger movements. The design of the glove is presented as a prototype based on computer vision algorithms in order to determine the relative position of the fingers. The manufactured data glove requires only inexpensive materials and a simple webcam for motion tracking. In the performed tests, our solution shows good results in the task of tracking the moveme...
La segmentación de imágenes consiste en obtener una región de interés dentro de un espacio más am... more La segmentación de imágenes consiste en obtener una región de interés dentro de un espacio más amplio. Grab-Cut es una técnica reciente de segmentación 2D que obtiene excelentes resultados. Esta se basa en representar la imagen como un grafo de flujo, y luego aplicar un algoritmo de corte mínimo en el grafo y separar la imagen de fondo (background) y la región de interés (foreground). Este artículo presenta un enfoque novedoso para segmentar volúmenes basado en GrabCut empleando un esquema de algoritmo paralelo que se ejecuta en la GPU denominado 3D GrabCut. El grafo es creado completamente en la GPU y se ejecuta sobre la arquitectura CUDA de NVIDIA(R). Las pruebas demuestran excelentes resultados con los volúmenes de prueba, arrojando tiempos inferiores que su ejecución en la CPU y una separación adecuada background/foreground.
Data gloves are devices with a set of sensors for obtaining information about the movement of the... more Data gloves are devices with a set of sensors for obtaining information about the movement of the hand and its fingers. In Virtual Reality, data gloves are widely used as input devices for its capability to interact with the computer for application development. Currently, there are many such devices, which are offered by specialized commercial companies at high costs. Nevertheless,
The representation of an image as a ow network has gained an increased interest in research for t... more The representation of an image as a ow network has gained an increased interest in research for the 2D and 3D segmentation eld. One of these segmentation approaches consists in applying a minimum cut algorithm to separate the image in background and foreground. The most remarkable algorithm to segment a 2D image using this approach is GrabCut. This article presents a novel segmentation of 3D image using GrabCut implemented on the GPU. We proposed a scheme where a volume dataset is used as input, instead of a 2D image. The original GrabCut algorithm is adapted to be executed on the GPU eciently. Our algorithm is fully parallel and is optimized to run on Nvidia CUDA. Tests performed showed excellent results with di erent volumes, reducing the computation time and maintaining a correct separation background/foreground.
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Papers by Pablo Temoche