High Speed Pipelined Architecture for Adaptive Median Filter
نویسنده
چکیده
Low level data processing functions, like FIR filtering, pattern recognition or correlation, where the parallel implementation is supported by architecture matched special purpose arithmetic; high throughput FPGA circuits easily outperform even the most advanced DSP processors. In this paper investigates a high-speed nonlinear Adaptive median filter implementation is presented. Then Adaptive Median Filter solves the dual purpose of removing the impulse noise from the image and reducing distortion in the image. Adaptive Median Filtering can achieve the filtering operation of an image corrupted with impulse noise of probability greater than 0.2. Key: Salt and Pepper, Adaptive, Pipeline, FIFO, Rank order, Non linear.
منابع مشابه
Design and Implementation of Digital Demodulator for Frequency Modulated CW Radar (RESEARCH NOTE)
Radar Signal Processing has been an interesting area of research for realization of programmable digital signal processor using VLSI design techniques. Digital Signal Processing (DSP) algorithms have been an integral design methodology for implementation of high speed application specific real-time systems especially for high resolution radar. CORDIC algorithm, in recent times, is turned out to...
متن کاملAhead Pipelined LMS Adaptive Filters and Their Application to ADPCM Coder
The relaxed look-ahead technique is presented as an attractive technique for pipelining adaptive filters. Unlike conventional look-ahead, the relaxed look-ahead does not attempt to maintain the input-output mapping between the serial and pipelined architectures but preserves the adaptation characteristics. The use of this technique results in a small hardware overhead which would not be possibl...
متن کاملLow-power Adaptive Filter Architectures via Strength Reduction - Low Power Electronics and Design, 1996., International Symposium on
Low-power and high-speed algorithms and architectures for complex adaptive filters are presented in this paper. These architectures have been derived via the application of algebraic and algorithm transformations. The strength reduction transformation when applied a t the algorithmic levelresults in a power reduction by 21% as compared to the traditional cross-coupled structure. A fine-grain pi...
متن کاملPipelined QR decomposition based multi-channel least square lattice adaptive filter architectures
QR decomposition based multi-channel least square lattice (QRDMLSL) algorithm possesses good numerical property and regularity which are attractive for VLSI implementation. But due to the presence of local recursive loop in its implementation, the algorithm’s speed is limited to the computation time of each computation cell. In this paper, a novel approach for pipelining QRDMLSL adaptive filter...
متن کاملAn Effective Architecture of the Pipelined LMS Adaptive Filters
In this paper we propose a new pipelined architecture for the LMS adaptive filter which can be implemented with less than half the amount of calculation needed for the conventional architectures. Even though the proposed architecture reduces the required calculation, it can simultaneously produce good convergence characteristics, a short latency and high throughput characteristics. key words: a...
متن کامل