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Mostrando ítems 1-10 de 11
Ponencia
Real-time single-exposure ROI-driven HDR adaptation based on focal-plane reconfiguration
(Society of Photo-Optical Instrumentation Engineers, 2015)
This paper describes a prototype smart imager capable of adjusting the photo-integration time of multiple regions of interest concurrently, automatically and asynchronously with a single exposure period. The operation is ...
Artículo
High dynamic range adaptation for ROI tracking based on reconfigurable concurrent dual-sensing
(Institution of Civil Engineers (Great Britain), 2014)
A single-exposure technique to extend the dynamic range of vision sensors is presented. It is particularly suitable for vision algorithms requiring region-of-interest (ROI) tracking under varying illumination conditions. ...
Ponencia
A QVGA Vision Sensor with Multi-functional Pixels for Focal-Plane Programmable Obfuscation
(Institute of Electrical and Electronics Engineers, 2014)
Privacy awareness constitutes a critical aspect for smart camera networks. An ideal awless protection of sensitive information would boost their application scenarios. How- ever, it is still far from being achieved. Numerous ...
Artículo
Smart imaging for power-efficient extraction of Viola-Jones local descriptors
(Society of Photo-Optical Instrumentation Engineers, 2014)
In computer vision, local descriptors permit to summarize relevant visual cues through feature vectors. These vectors constitute inputs for trained classifiers which in turn enable different high-level vision tasks. While ...
Artículo
Bottom-up performance analysis of focal-plane mixed-signal hardware for Viola–Jones early vision tasks
(John Wiley & Sons, 2015)
Focal-plane mixed-signal arrays have traditionally been designed according to the general claim that moderate accuracy in processing is affordable. The performance of their circuitry has been analyzed in these terms without ...
Ponencia
Demo: A Prototype Vision Sensor for Real-time Focal-plane Obfuscation through Tunable Pixelation
(Institute of Electrical and Electronics Engineers, 2014)
Privacy concerns are hindering the introduction of smart camera networks in prospective application scenarios like retail analytics, factory monitoring or elderly care. The idea of networked cameras pervasively collecting ...
Artículo
Focal-plane sensing-processing: a power-efficient approach for the implementation of privacy-aware networked visual sensors
(MDPI, 2014)
The capture, processing and distribution of visual information is one of the major challenges for the paradigm of the Internet of Things. Privacy emerges as a fundamental barrier to overcome. The idea of networked image ...
Artículo
Gaussian Pyramid: Comparative Analysis of Hardware Architectures
(Institute of Electrical and Electronics Engineers, 2017)
This paper addresses a comparison of architectures for the hardware implementation of Gaussian image pyramids. Main differences between architectural choices are in the sensor front-end. One side is for architectures ...
Capítulo de Libro
Image Feature Extraction Acceleration
(Springer, 2016)
Image feature extraction is instrumental for most of the best-performing algorithms in computer vision. However, it is also expensive in terms of computational and memory resources for embedded systems due to the need of ...
Patente
Hardware para cómputo de la imagen integral
(Oficina Española de Patentes y Marcas , 2015-10-20)
La presente invención, según se expresa en el enunciado de esta memoria descriptiva, consiste en hardware de señal mixta para cómputo de la imagen integral en el plano focal mediante una agrupación de celdas básicas de ...