Now showing items 31-40 of 461
Characterization of transmission lines at IR
We demonstrate the first long wave infrared (LWIR) transmission line design and characterization. Two of the widely used transmission-lines: coplanar striplines (CPS) and microstrip (MS) lines are characterized at IR ...
Effective quality analysis for video streaming over wireless ad hoc network
Video encoding and streaming over wireless ad hoc network operates under severe conditions, such as time-varying channel characteristics with bursty errors, limit power for data transmission, and dynamic topology of the ...
Product-based multiresolution image fusion
We combined images from different sensors that were enhanced by multiscale products of the wavelet coefficients. Using the wavelet transform, we used a multiresolution analysis to form products of coefficients across scales. ...
Adaptive handoff algorithms based on self-organizing neural networks to enhance the quality of service of nonstationary traffic in hierarchical cellular networks
Third-generation (3G) wireless networks, based on a hierarchical cellular structure (HCS), support tiered levels of multimedia services. These services can be categorized as real-time and delay-sensitive, or non-real-time ...
Collaborative image transmission over wireless sensor networks
The imaging sensors are able to provide intuitive visual information for quick recognition and decision. However, imaging sensors usually generate vast amount of data. Thus, processing of image data collected in the sensor ...
A novel multiple description scalable coding scheme for mobile wireless video transmission
We proposed in this paper a novel multiple description scalable coding (MDSC) scheme based on in-band motion compensation temporal filtering (IBMCTF) technique in order to achieve high video coding performance and robust ...
Denoising of imagery for inspection tasks using higher-order statistics
We reduced noise in images using a higher-order, correlation-based method. In this approach, wavelet coefficients were classified as either mostly noise or mostly signal based on third-order statistics. Because the higher ...
Pattern classification approach to underwater acoustic communications based on the Wigner-Ville distribution
This paper describes an approach and preliminary results associated with the use of pattern recognition techniques to identify transmitted information (symbols) in a temporally variant acoustic channel. The method allows ...
Synthesis of electromagnetic devices with a novel neural network
A novel Artificial Neural Network (ANN) is presented, which has been designed for computationally intensive problems, and applied to the optimization of electromagnetic devices such as antennas and microwave devices. The ...
Wavelet-based image compression using randomized quantization
We applied dithered quantization to image compression using a wavelet transform, scalar quantization method. The results indicate that dithered quantization could change the noise characteristics ofthe reconstructed image.