A novel efficient multiple encryption algorithm for real time images

A stack-based chaotic algorithm for encryption of colored images

In this paper, a new method is presented for encryption of colored images. This method is based on using stack data structure and chaos which make the image encryption algorithm more efficient and robust. In the proposed algorithm, a series of data whose range is between 0 and 3 is generated using chaotic logistic system. Then, the original image is divided into four subimages, and these four i...

Partial Encryption of Images for Real-time Applications

Multimedia systems mostly base security on a restricted access to services. In the context of real-time imaging applications, this model suffers several drawbacks. Applications become vulnerable to password attacks and once exposed attackers have access to all the data. An alternative consists of the systematic encryption of all data. When dealing with images, this approach is inconvenient beca...

A Real-time Stitching Algorithm for UAV Aerial Images

Real-time stitching is a research focus of UAV area. The speed and accuracy of stitching algorithm are both important for commanders to make right decisions in battlefield. In this paper, a real-time UAV aerial image stitching algorithm based on predicted region matching is proposed. A new matching strategy is applied to the feature matching step. The transformation matrix will be calculated by...

A New Fast Data Encryption Algorithm (FDE)

Efficient Time-Frequency Domain Algorithm for Real Time Signal Compression

For real time remote health monitoring systems, spontaneous transmission of biological signals is essential. To accomplish this time efficient compression schemes play an important role. In this paper, we propose a sparse encoding algorithm consisting of a wavelet transform based iterative thresholding (WTIT). It reduces the minimal ECG voltage values to zero level. Subsequently, it encodes the...