Video applications in mobile devices call for low complexity video compression algorithms. This paper presents a low complexity 2-power transform for video compression. The elements of the transform matrix are all in 2’s low-order power. The transform computation requires only 28 additions and 10 binary shifts. Computational complexity analysis, coding gains and RD curve comparison show that ou...

-Fractal compression is the lossy compression technique in the field of gray/color image and video compression. It gives high compression ratio, better image quality with fast decoding time but improvement in encoding time is a challenge. This review paper/article presents the analysis of most significant existing approaches in the field of fractal based gray/color images and video compression,...

In this paper, we propose a novel video sequences compression and encryption method combining 3D compressive sensing (3D-CS) with 3D discrete fractional random transform (3D-DFrRT). In this scheme, the original video sequences were transformed with discrete wavelet and measured by three Gaussion random matrices to achieve compression and encryption simultaneously, and then the resulting 3D imag...

Video compression standards commonly employed in the delivery of real−time wireless multimedia services regularly adopt variable length codes (VLCs) for efficient transmission. This coding technique achieves the necessary high compression ratios at the expense of an increased system’s vulnerability to transmission errors. The more frequent presence of transmission errors in wireless channels re...

—Multimedia information availability has increased dramatically with the advent of mobile devices. But with this availability comes problems of maintaining the security of information that is displayed in public. Many approaches have been used or proposed for providing security for information dissemination over networks, protection system classified with more specific as encryption information...

In this research we describe a scheme for distributed 3D interactive rendering system, which allows high performance rendering at a remote location and the interactive visualization of the resulting rendered images at a general purpose workstation terminal connected through highspeed network. The key to this approach is a video compression scheme of this system which has been designed for the t...

Problem statement: When we send any video data over the network it consumes more time. This is due to the huge size of the video file when compared to text file. Therefore, video data should be compressed before sending to the destination. Another important factor during data transfer is security. Joint compression and encryption is employed to enable faster and secured transmission of video da...

Wireless and Internet video applications are inherently subjected to bit errors and packet errors, respectively. This is especially so if constraints on the end-to-end compression and transmission latencies are imposed. Therefore, it is necessary to develop methods to optimize the video compression parameters and the rate allocation of these applications that take into account residual channel ...

This study introduces a video compression method that uses spatio – temporal lifting based algorithms to compress the video signals. The temporal correlation of consecutive frames causes temporal redundancies which are subject to lifting-like motion predictive compression. Moreover, the spatial correlation between neighbouring pixels of the same frame is subject to intra-frame wavelet compressi...

In recent years, real-time video communication over the internet has been widely utilized for applications like video conferencing. Streaming live video over heterogeneous IP networks, including wireless networks, requires video coding algorithms that can support various levels of quality in order to adapt to the network end-to-end bandwidth and transmitter/receiver resources. In this work, a s...