International Journal of Electronics and Communication Engineering

10

Authors: MANIMOZHI DEVARAJ

Video compression has become one of the basic technologies of the multimedia age. In many applications, such as the design of multimedia workstations and high quality transmission and storage, the goal is to achieve transparent coding of Image and video at the lowest possible data rates. In other words, bandwidth cost money, therefore, the transmission and storage of information becomes costly. However, if we can use less data, both transmission and storage become cheaper. In this paper two techniques are used together to achieve high compression rate. In video frames, seam curving technique is used as Intra frame coding and DWT is used as Inter frame coding. Both Inter-Intra frame coding are used to achieve desired result.

17-28

Authors: YEONG-SANG PARK & YOUNGSAM LEE

In this paper, we present an improved path planning method and obstacle avoidance algorithm for a 2-wheel mobile robot. Firstly, we briefly introduce the rapidly exploring random tree (RRT) and the single polar polynomial (SPP) algorithm. Secondly, we present additional 2 methods for applying our proposed method. Thirdly, we propose a global path planning, smoothing and obstacle avoidance method that combine RRT and SPP algorithm. Finally, we present simulation using proposed method and check the feasibility. This shows that proposed method is better than existing methods in terms of the optimality of the trajectory and the satisfaction of the kinematic constraints.

41-50

Authors: PRATEEK AGRAWAL, S. R. P. SINHA & SUBODH WAIRYA

Quantum dot cellular automata (QCA) is a computing approach, in which binary information is represented as the charge configuration among the quantum dots. In nanoscale integrated circuit energy consumption and area utilization are a major concern, hence in recent years QCA has attracted a lot of attention as a result of its extremely small feature size and low power consumption. This technology is best suited for the semiconductor fabrication because of its less time consuming and less expensive methods. As per Moore’s law, number of transistors in an integrated circuit doubles for every two years, fabrication process faces some technical barriers. In context of this, QCA has emerged as the most promising technology, as an alternative to CMOS technology. In this paper efforts have been made to show the work carried out on QCA and focused on the science and technology applications of QCA due to its many interesting and important applications such as parity generator and checker.