Fernando A. Mujica

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In Software Defined Networking (SDN) the control plane is physically separate from the forwarding plane. Control software programs the forwarding plane (e.g., switches and routers) using an open interface, such as OpenFlow. This paper aims to overcomes two limitations in current switching chips and the OpenFlow protocol: i) current hardware switches are(More)
This paper presents a novel motion parameter estimation (ME) algorithm based on the spatio-temporal continuous wavelet transform (CWT). The multidimensional nature of the CWT allows for the definition of a multitude of energy densities by integrating over a subset of the CWT parameter space. Three energy densities are used to estimate motion parameters by(More)
This paper addresses the problem of detecting and tracking moving objects in digital image sequences. The main goal is to detect and select mobile objects in a scene, construct the trajectories, and eventually reconstruct the target objects or their signatures. It is assumed that the image sequences are acquired from imaging sensors. The method is based on(More)
This paper describes our efforts to include a hands-on component in the teaching of core concepts of digital signal processing. The basis of our approach was the low-cost and open-source “Stanford Lab in a Box.” This system, with its easy to use Arduino-like programming interface allowed students to see how fundamental DSP concepts such as(More)
This paper investigates the use of the Continuous Wavelet Transform (CWT) for detection of targets in cluttered environments. We rst deene the multiple 2D CWT energy densities in the feature space. We then use the spatial energy density as a computational core for our target-detection algorithm. Results from FLIR images are presented at the end of the(More)
The two-dimensional continuous wavelet transform (CWT) is characterized by a rotation parameter, in addition to the usual translations and dilations. The CWT has been interpreted as space-frequency representation of two-dimensional signals, where the translation corresponds to the position variable, and the inverse of the scale and the rotation, taken(More)
The Stanford “Lab-In-A-Box” project comprises an open source hardware and software tool chain for teaching signal processing and analog electronics. It is intended to improve the teaching of these concepts by providing a platform that is more open and understandable and by lowering the economic barriers to students interested in the field. To(More)