Results 261 to 270 of about 4,256,847 (295)

Adaptive patches for change detection

2011 18th IEEE International Conference on Image Processing, 2011
This paper is concerned with “structural” change detection in pair of images. This is a challenging and open problem since the difficulties stemming from the confusion between real changes (depending on the objects/structures inside the images) and visual changes (observed through the difference in terms of image luminance) are numerous.
Xing Gong, Thomas Corpetti
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On Affirmative Adaptive Failure Detection

2012
Fault detection methodology is a crucial part in providing a scalable, dependable and high availability of grid computing environment. The most popular technique that used in detecting fault is heartbeat mechanism where it monitors the grid resources in a very short interval.
Ahmad Shukri Mohd Noor, Mustafa Mat Deris, Tutut Herawan, Mohamad Nor Hassan   +3 more
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Adaptive detection of transient signals

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1986
The paper discusses the problem of detecting transient signals of unknown waveforms in white Gaussian noise. The signals are modeled as impulse responses of rational transfer functions with unknown parameters. A generalized likelihood ratio test (GLRT) is proposed and its statistical properties are analyzed.
Boaz Porat, Benjamin Friedlander
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Blind adaptive multiuser detection

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005., 2005
We propose a new blind multiuser signal model and detection framework for solving the near-far problem in synchronous CDMA in this paper. Compared with existing blind detectors, the proposed framework requires a minimum number of previously received signals, which is about the number of interfering users, and no sub-space separation or sequence ...
Shu Wang, Sang G. Kim, Li-Hsiang Sun, Hobin Kim, Suk W. Lee, S. R. Subramanya, Ki Y. Kim, Byung K. Yi   +7 more
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Adaptive Detection for STBCS in IEEE802.11AC

2014 IEEE Intl Conf on High Performance Computing and Communications, 2014 IEEE 6th Intl Symp on Cyberspace Safety and Security, 2014 IEEE 11th Intl Conf on Embedded Software and Syst (HPCC,CSS,ICESS), 2014
An adaptive detection scheme is proposed on the very fast detection algorithm for Space-time block code in IEEE 802.11ac. At first, QR decomposition is applied to the channel matrix for getting an upper triangular matrix and has been achieved the required number of candidate constellation points around the maximum likelihood (ML) points without ...
Debasish Ghose, Smriti Kana Roy, Hung-Ta Pai, Chun-Yi Wei   +3 more
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Blind adaptive multiuser detection

IEEE Transactions on Information Theory, 1995
This paper introduces an adaptive multiuser detector which converges (for any initialization) to the minimum mean-square error detector without requiring training sequences. This blind multiuser detector requires no more knowledge than does the conventional single-user receiver: the desired user's signature waveform and its timing.
Michael L. Honig, Upamanyu Madhow, Sergio Verdú   +2 more
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Saliency detection by adaptive clustering

2013 Visual Communications and Image Processing (VCIP), 2013
Saliency detection plays an important role in image segmentation, content-aware resizing and object recognition. Most approaches obtain promising performance recently, which is useful for the postprocessing. We propose a clustering-based method to detect refined regions with comparative performance.
Hai Cao, Shaozi Li, Songzhi Su, Yun Cheng, Rongrong Ji   +4 more
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An adaptive framework for saliency detection

International Journal of Imaging Systems and Technology, 2019
AbstractAt present, people are inclined to use one saliency detection method to cover all the pixels in an image. However, every method has its own limitations. A single method may not yield a good performance at all image scenes. In this article, we propose a new adaptive framework to detect salient objects.
Ning Jia 0003, Xianhui Liu, Weidong Zhao, Haotian Zhang, Keqiang Zhuo   +4 more
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Signal detection by adaptive filters

IEEE Transactions on Information Theory, 1961
In den letzten Jahren wurden Empfangssysteme entwickelt, die in der Lage sind, ihre Arbeitsparameter oder ihre Struktur innerhalb bestimmter Grenzen selbsttätig an die Eigenschaften der Empfangssignale anzupassen. Es wird ein solches selbstadaptierendes Filter beschrieben, welches seine Eigenschaften automatisch an impulsförmige Signale anpaßt, die ...
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Adaptive ZCDPLL for QPSK detection

2005 12th IEEE International Conference on Electronics, Circuits and Systems, 2005
A Second Order Zero Crossing Digital Phase Locked LOOP (ZCDPLL) with time varying loop gains is applied to QPSK detection. The ZCDPLL consists of an adaptive Kalman estimator which estimates the phase offsets of a received data bearing passband signal. The ZCDPLL digital filter gains are updated using the Recursive Least Squares (RLS) algorithm.
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