Nova Sensors produces miniature electronics for a variety of real-time digital video camera systems, including foveal sensors based on Nova’s Variable Acuity Superpixel Imager (VASITM) technology. An advanced imageprocessing package has been designed at Nova Sensors to re-configure the FPGA-based co-processor board for numerous applications including motion detection, optical, background veloci...

This paper presents the concept and preliminary tests in FPGA of a specific architecture for a flexible multicore microcontroller. It is aimed to intermediate complexity embedded applications. A previous exact characterize of the microcontroller model and its target applications is a costly-time task, and it depends mostly on experience of the engineers and programmers. The proposed architectur...

We demonstrate an integrated FPGA solution to project highly stabilized, aberration-corrected stimuli directly onto the retina by means of real-time retinal image motion signals in combination with high speed modulation of a scanning laser. By reducing the latency between target location prediction and stimulus delivery, the stimulus location accuracy, in a subject with good fixation, is improv...

A performance analysis of two distinct implementations of a recently proposed quite efficient motion estimation coprocessor is presented. This comparison considers two distinct implementation technologies: a high performance FPGA device, from Xilinx Virtex-II Pro family, and an ASIC based implementation, using a 0.18μm CMOS standard cells library. Experimental results have shown that the two co...

Software Defined Radio (SDR) is one of the most emerging technologies of communication industry. It has the ability to adapt itself to the environment and can be designed to operate in extremely hostile environment. Its major advantage comes from the fact that the algorithms implemented to facilitate communication are reconfigurable by the software. At the same time, to meet the processing requ...

Field Programmable Gate Array (FPGA) technology has become a viable target for the implementation of real time algorithms suitable to video image processing applications. The exclusive architecture of the FPGA has allowed the technology to be used in many applications encompassing all aspects of video image processing. In this paper, we propose a novel type of explicit image filterguided filter...

In the Reconfigurable System-On-a-Chip (RSOC), an FPGA core is embedded to improve the design flexibility of SOC. In this paper, we demonstrate that the embedded FPGA core is also feasible for use in implementing the proposed hybrid pattern Built-In Self-Test (BIST) in order to reduce the test cost of SOC. The hybrid pattern BIST, which combines Linear Feedback Shift Register (LFSR) with the pr...

This paper proposes a parallel fixed point radial basis function (RBF) artificial neural network (ANN), implemented in a field programmable gate array (FPGA) trained online with a least mean square (LMS) algorithm. The processing time and occupied area were analyzed for various fixed point formats. The problems of precision of the ANN response for nonlinear classification using the XOR gate and...

One of the major overheads for reconfigurable computing is the time it takes to reconfigure the devices in the system. This overhead limits the speedup possible in this paradigm. In this paper we explore configuration prefetching techniques for reducing this overhead. By overlapping the configuration loadings with the computation on the host processor the reconfiguration overhead can be reduced...

This paper introduces a short-wave infrared camera logic design based on FPGA. The hardware adopts the architecture of Sofradir Tecless SWIR detector SW640+Xilinx FPGA xc4vsx55, which has dual working mode 640×512 at 25 FPS and 64×48 4000 FPS. function high precision target tracking can be realized by frequency capture laser signal. In this design, non-uniform correction coefficient table in SD...