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Título: | Low-power vision chips based on focal-plane feature extraction for visually-assisted autonomous navigation |
Autor: | Carmona-Galán, R. CSIC ORCID | Fecha de publicación: | 2012 | Editor: | Institute of Electrical and Electronics Engineers | Citación: | IEEE/RSJ International Conference on Intelligent Robots and Systems (2012) | Resumen: | Avoiding obstacles and finding the way around are tasks that can greatly benefit from an efficient implementation of vision. While higher level vision can be performed by conventional microprocessors at an acceptable rate, lower level vision represents a heavy computational load to deal with. The usual sensor plus ADC plus microprocessor scheme either fails to meet the timing requirements or fails to operate under a low power budget. Since the information contained in the visual stimulus is highly redundant, converting every single pixel value to digital prior to any processing is inefficient. Instead, we are working in adapted architectures in which the parallelism that is inherent to lower level vision tasks is largely exploited. This hierarchical approach emulates the organizational principles of biological vision systems, by using an array of elementary and relatively coarse processors to achieve global computation, and also the operation of the elementary cells, by using analog and mixed-signal processing building blocks. Our chips are capable of efficiently extracting image features and salient points at the focal plane in order to facilitate the task of identifying objects and interpreting the scene. | Descripción: | Trabajo presentado al IROS celebrado en el Algarve del 7 al 12 de octubre de 2012. | Versión del editor: | http://dx.doi.org/10.1109/IROS.2012.6385435 | URI: | http://hdl.handle.net/10261/95990 | DOI: | 10.1109/IROS.2012.6385435 | Identificadores: | doi: 10.1109/IROS.2012.6385435 isbn: 978-1-4673-1737-5 |
Aparece en las colecciones: | (IMSE-CNM) Libros y partes de libros |
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Low-Power Vision.pdf | 1,05 MB | Adobe PDF | Visualizar/Abrir |
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