Received Aug 2, 2013 Revised Oct 14, 2013 Accepted Oct 28, 2013 The H.264/AVC standard achieves remarkable higher compression performance than the previous MPEG and H.26X standards. One of the computationally intensive units in the MPEG and H.26X video coding families is the Discrete Cosine Transform (DCT). In this paper, we propose an efficient implementation of the DCT, inverse DCTs and the H...

bstract. We propose novel matrix-form representations of the onventional forward three-dimensional (3-D) discrete cosine transorm (DCT) and the inverse 3-D DCT. The pair of the computationlly efficient 3-D DCTs causes the formulation to be more concise ith a systematic structure, which has a high potential for the develpment of other applications via the 3-D DCT pair. Applications for nlargemen...

This proposed paper presents architecture of generalized recursive function to generate approximation of orthogonal function DCT with an approximate length N could be derived from a pair of DCTs of length (N/2) at the cost of N additions for input preprocessing. Approximation of DCT is useful for reducing its computational complexity without impact on its coding performance. Most of the existin...

New schemes for video transmission over wireless channels are described. Content based approaches for video segmentation and associated resource allocation are proposed. We argue that for transport over wireless channels, diierent video content requires diierent form of resource allocation. Joint source/channel coding techniques (particularly content/data dependent FEC/ARQ schemes) are used to ...

In this paper, we present a discuccion on DCT a l g o r i h based on convolutions. It is shown that these approaches can provide effective solutionr to realize DCTS Besides, thqt provide a theoretical lower bound on the number of multiplications required for the realization of DCTs Some fa* shon length DCT alprithms have ah0 been dm'ved f i m thcw approaches.

We present an algorithm for comparing 3D shapes by considering their pockets in the complementary space. The pockets of a closed compact surface can be represented by a 3D volumetric function. Multi-resolution dual contour trees are constructed from the pocket functions to efficiently match them in an affine-invariant way. DCTs are simplified data structures computed from contour trees (CT) of ...

The digital image processing (DIP) has started as pioneer as a constituent of the digital signal processing (DSP) and emerged as the leader in very short time. Its prominence has kept on increasing in all research fields varying from low-level applications to high-level applications. The image and the video compression is a key operation in it and in past years various compression algorithms ar...

A novel diode-checkerboard test structure (DCTS) is presented to determine open circuit defects and short circuit defects as well as to investigate the 3D-influence of underlying topography. The arrangement of the DCTS in a standard boundary pad frame and the digitally measuring procedure evaluate a fast and effective (efficient) online process characterization. The precise defect detection and...

Abstract Aim The aim of this quality improvement project was to provide a solution improve the confidence and skill Oral Maxillofacial Dental Core Trainees (DCTs) in venepuncture by attending phlebotomy training sessions. DCTs within hospital where undertaken are dentally qualified often not taught principles during their undergraduate degree. Furthermore, they rarely gain hands-on experience c...