Neutron imaging finds applications in many branches of science and industry such as in nondestructive testing, material science etc. Conventional imaging of neutrons has been carried out mostly using analogue technology such as screen film imaging. Making transition from analogue to digital could bring several advantages such as fast image acquisition and display, implementation of image proces...

A new digital signal processor (DSP)-based data acquisition system has been designed and installed at the Advanced Photon Source. This system uses a commercial VME-based DSP card to acquire and process x-ray blade signals to determine x-ray beam position for both bending magnet and insertion device beamlines. The system also acquires and processes position data from the narrowband rf BPMs that ...

In this paper, a robust and efficient digital image watermarking algorithm using the fast Hadamard transform (FHT) is proposed for the copyright protection of digital images. This algorithm can embed or hide an entire image or pattern as a watermark such as a company’s logo or trademark directly into the original image. The performance of the proposed algorithm is evaluated using Stirmark 3.1wh...

Now a day's, the main challenge in front of VLSI System designer are to design fast processing system. And the ALU are main functional unit in most digital and high performance systems such as FIR filters, digital signal processors and microprocessors etc. So the performance such VLSI circuit is dependent on the performance of the ALU. And the ALU speed is mainly depends on the speed of multipl...

This paper describes a new strategy for pulsewidth modulation (PWM) optimized by a direct method and the application of genetic algorithms (GA) to minimize the harmonic content specifically the fifth and seventh harmonic of the total content, based on the minimum total harmonic distortion (THD). Described the development of the method, the guidelines to take into account including the algorithm...

This research aims to define an efficient and fast quantification of bitumen removal on the road surface by Digital Imaging Processing (DIP) and spectral analysis. The retrieval of bitumen removal is an important issue for road management and environmental studies related to asphalt wear and environmental pollution. The calculation of the Exposed Aggregate Index (EAI), based on DIP, allows to q...

Hardware implementations of Spiking Neural Networks are numerous because they are well suited for implementation in digital and analog hardware, and outperform classic neural networks. This work presents an application driven digital hardware exploration where we implement real-time, isolated digit speech recognition using a Liquid State Machine. The Liquid State Machine is a recurrent neural n...

This work focuses on the image steganography with an image compression using Discrete Wavelet Transform (DWT) on FPGA Spartan III Evaluation Development Kit (EDK). Current trends support digital image files as the cover file to hide another digital file with secret message or data. At receiver side, using Inverse Discrete Wavelet transform, both original image as well as hidden data can be succ...

A medical workstation has been developed for the efficient display and analysis of large sets of digital cineradiographic images. Various features aid the clinician in quickly identifying and extracting the image information relevant for diagnosis: animated viewing of image frames, a digital magnifying glass for local image enlargement and enhancement, a special review queue for critical image ...

The implementation of large linear control systems requires a high amount of digital signal processing. Here, we show that reconfigurable hardware allows the design of fast yet flexible control systems. After discussing the basic concepts for the design and implementation of digital controllers for mechatronic systems, a new general and automated design flow starting from a system of differenti...