An enhancement algorithm for cyclic adaptive Fourier decomposition

Adaptive enhancement of Fourier spectra

An adaptive enhancement procedure is presented which emphasizes continuant spectral features such as formant frequencies, by imposing frequency and amplitude continuity constraints on a short-time Fourier representation of the speech signal. At each point in the time-frequency field, the direction of maximum energy correlation is determined by the angle of a linear window at which the energy de...

An Improved Content Adaptive Detail Enhancement Algorithm

Detail enhancement is required in digital image processing. The existing technique is very time consuming as it doesn’t enhance the images directly and divides images into layers and it also introduced the effect of noise and fog in the resulting image This paper shows that content adaptive image detail enhancement technique provides better results as compared to existing methods. The proposed ...

An Efficient Adaptive Boundary Matching Algorithm for Video Error Concealment

Sending compressed video data in error-prone environments (like the Internet and wireless networks) might cause data degradation. Error concealment techniques try to conceal the received data in the decoder side. In this paper, an adaptive boundary matching algorithm is presented for recovering the damaged motion vectors (MVs). This algorithm uses an outer boundary matching or directional tempo...

FFT formulations of adaptive Fourier decomposition

An Adaptive LEACH-based Clustering Algorithm for Wireless Sensor Networks

LEACH is the most popular clastering algorithm in Wireless Sensor Networks (WSNs). However, it has two main drawbacks, including random selection of cluster heads, and direct communication of cluster heads with the sink. This paper aims to introduce a new centralized cluster-based routing protocol named LEACH-AEC (LEACH with Adaptive Energy Consumption), which guarantees to generate balanced cl...