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New Rotation Invariance Features Based on Circle Partitioning
Gesture system can be considered as the non-tongue language that enables the human to emphasize or clarify the importance of current speech when communicate with other human(s).This idea can be utilized to be the vision based language between the human and the human-made intelligent machines.In this paper, the researcher introduced a gesture system model for recognizing the hand posture, the main contribution of this paper is the presenting of a new feature extraction method based on circle division of hand posture
Emergency communication service is the dissemination of information on fire, arm robbery, medical need for ambulance and other emergency related incidences to an organization that provides the related services. Information should get to the emergencyservice providers in reasonable length of time. During the last three decades, several countries of the world including Nigeria have witnessed how inadequate communication capability has adversely affected emergency responders and recovery efforts of accident victims.
RING: A Cross-Layer Design for Voice Communicating on P2P-MANET
This paper presents RING, a novel peer-to-peer (P2P) voice communicating system on mobile ad hoc network (MANET). RING proposes a ring overlay, a set of protocols, and an implementation enabling the delivery voice among peers without connecting to Internet. The logical overlay is proximal to the physical topology based on cross-layer scheme, which detects the network dynamics and peer movement to support a communication with high delivery ratio. The ring overlay is used to utilize simply, stabilize real-time delivery, and minimize signaling overhead. The characteristics of self-organization and decentralization share the network load and help the network scalability for MANET. Although the traditional P2P system falls into impropriety and inefficiency of real-time distribution on MANET, RING can achieve the acceptable quality in short-term and small-scale purpose. We discuss the comparison of overlay performance and demonstrate that RING is workable via the mathematical theory and a series of experiences. RING can deal with peer arrival and departure quickly and simply to shorten the service interruption time with minimal signaling overhead.
Wavelet transforms are considered to be an ideal domain for image compression and transmission. The new generation still image compression standard JPEG2000 uses the bi-orthogonal CDF 5/3 wavelet (also called the CDF (2, 2) wavelet) for lossless compression and a CDF 9/7 wavelet for lossy compression. There are several known wavelet families such as Daubechies, Coiflet, Symlet, CDF, etc. The problem of selecting a suitable wavelet for signal and image processing has always challenged the researchers. The conventional wavelet filters often have floating point coefficients and couldn’t realize the lossless reconstruction.
The second generation wavelet transforms are based on lifting scheme and they map integers to integers. Thus they realize the lossless compression of image data with minimal memory usage and low computational complexity.