The visual signal is highly occupied by regions of homogeneous and repetitive patterns known as Textures. Textures have a common property that their similarity highly deviates from point by point comparison, i.e, two textures can look very similar even if they have some shift, rotation and difference in their distribution. In the context of compression, All of the MPEG reference encoders (inclu...

We examine the contribution of domestic and interstates road infrastructures to trade flow between member countries Central African Economic Monetary Community (CEMAC). Theories international economics as well those new economic geography suggest a positive both intraregional trade. A gravity model is estimated evaluate this theoretical prediction in CEMAC zone. Results confirm interstate infra...

Traditional intra prediction usually utilizes the nearest reference line to generate the predicted block when considering strong spatial correlation. However, this kind of single line-based method does not always work well due to at least two issues. One is the incoherence caused by the signal noise or the texture of other object, where this texture deviates from the inherent texture of the cur...

This letter proposes a fast parallel and deeply pipelined architecture for realtime H.264 intra 4×4 prediction capable of handling up to 32 High Definition video streams (1920× 1080 @ 30 fps) simultaneously, while offering high flexibility and consuming only a fraction of resources available on modern FPGA’s. The design has been validated on target using a state of the art Altera Stratix IV FPGA.

Advanced video coding standards have become widely deployed in numerous products, such as multimedia service, broadcasting, mobile television, video conferences, surveillance systems and so on. New compression techniques are gradually included in video coding standards so that a 50% compression rate reduction is achievable every ten years. However, dramatically increased computational complexit...

Expressive performance is an important issue in music which has been studied from different perspectives. In this paper we describe an approach to investigate musical expressive performance based on inductive machine learning. In particular, we focus on the study of variations on intra-note features (e.g. attack) that a saxophone interpreter introduces in order to expressively perform a Jazz st...

H.264 [1] and AVS [2] are the emerging state-of-art video coding standards, in which the block-based hybrid coding framework is employed. DCT or its approximation such as Integer Cosine Transform (ICT) is the centerpiece for signal decorrelation and energy compaction. After DCT, the transform coefficients are quantized and scanned into one-dimensional (1-D) signals, named run-level pairs. The k...

In this paper, we propose a fast intra-prediction mode selection method for JVT video coding standard H.264. Based on local edge information obtained by calculating edge feature parameters, the method can reduce the computational complexity considerably while maintaining similar PSNR and bit rate. Experimental results are presented to show the effectiveness of the proposed method.

Two fast mode decision methods for intra prediction in H.264 are proposed in this work to reduce the encoder complexity. The first method, the so-called two-level fast Intra4x4 mode decision, is based on the idea of reducing possible candidate directions of a 4x4 luma block in Intra4x4 mode decision. The second method enables an early selection of suitable 4x4 or 16x16 luma partitions of a give...

The Madden-Julian Oscillation (MJO) is a tropical atmospheric phenomenon, associated with periods of active convection in the eastern hemisphere tropics.The MJOs temporal scale (22-90 days) coincides with a gap between weather (synoptic forecasts out to 10 days) and climate (seasonal and longer forecasts).Analysis of 35 years of daily rainfall data shows significant modulation of tropical and e...