abstract the use of geophysical methods, before digging, can be effective in the archaeological explorations. in the meantime, the gravimetery is the one of the most widely methods that be use, due to lack of harmful environmental effects. the gravity method is based on density contrast between the anomalous body and the country rocks or around of them. for archeology studying, the target is de...

The present paper, proposes an efficient denoising algorithm which works well for images corrupted with Gaussian and speckle noise. The denoising algorithm utilizes the alexander fractional integral filter which works by the construction of fractional masks window computed using alexander polynomial. Prior to the application of the designed filter, the corrupted image is decomposed using symlet...

In this paper, an efficient VLSI architecture proper for adaptive deblocking loop filter in both H.264 and AVS is presented. In this architecture, data access is carefully organized and some other measures are adopted, all that facilitate pipelining in this architecture so as to increase the efficiency of getting data from the SRAM and highly reduce the total cycles of filtering process. This d...

In this paper, we propose an efficient parallel architecture for the adaptive deblocking filter in H.264/AVC video coding standard. We use six forwarding shift register arrays (of which each contains 4×4 8-bit shift registers) with two transposing operations and two sets of filter operation (each set contains four edge filter operations) to support simultaneous processing of the horizontal and ...

This paper presents a method to remove blocking artifacts in low bit-rate block-based video coding. The proposed algorithm has two separate filtering modes, which are selected by pixel behavior around the block boundary. In each mode, proper one-dimensional filtering operations are performed across the block boundary along horizontal and vertical directions, respectively. In the first mode corr...

This paper presents the theoretical design and analysis of a tunable Fabry–Perot resonant microcavity filter realized by movable-waveguide-based integrated optical MEMS technology in InP. Wide-bandwidth, high-reflectivity horizontal InP/air-gap distributed bragg reflector (DBR) mirrors monolithically integrated with the waveguides have been proposed. The filter can be tuned by moving one of the...

Speckle is a granular noise that inherently exists in and degrades the quality of ultrasound images. It generally tends to reduce the resolution and contrast, thereby, to degrade the diagnostic accuracy of this modality. Speckle reduction is one of the most important processes to enhance the quality of ultrasound images. This paper proposes a statistical filter, which is a modified version of H...

This study describes the new design and function of a modified version of a traditional slow sand filter. The Submerged Pond Sand Filter is built inside a pond and has a vertical as well as a horizontal flow of water through a sloped filter opening. The filter provides treated drinking water to a rural Indian village. The filter has functioned with minimal maintenance for five years without bei...