نتایج جستجو برای: point detection

تعداد نتایج: 1063196  

Journal: :International Journal of Computer Applications 2013

Journal: :Astronomy and Astrophysics 2021

Point sources (PS) are one of the main contaminants to recovery cosmic microwave background (CMB) signal at small scales, and their detection is important for next generation CMB experiments. We develop a method (PoSeIDoN) based on fully convolutional networks detect PS in realistic simulations, we compare its performance against most used method, Mexican hat wavelet 2 (MHW2). produce simulatio...

Journal: :Remote Sensing 2011
Michael Leslar Jianguo Wang Baoxin Hu

Terrestrial LiDAR provides many disciplines with an effective and efficient means of producing realistic three-dimensional models of real world objects. With the advent of mobile terrestrial LiDAR, this ability has been expanded to include the rapid collection of three-dimensional models of large urban scenes. For all its usefulness, it does have drawbacks. One of the major problems faced by th...

Internet of Things is an ever-growing network of heterogeneous and constraint nodes which are connected to each other and the Internet. Security plays an important role in such networks. Experience has proved that encryption and authentication are not enough for the security of networks and an Intrusion Detection System is required to detect and to prevent attacks from malicious nodes. In this ...

2009
Frank Schmitt Lutz Priese

A new technique to automatically detect the vanishing points in digital images is presented. The proposed method borrows several ideas from various papers on vanishing point detection and segmentation in sparse images and recombines them with a new intersection point neighborhood on Z.

Journal: :IPOL Journal 2017
José Lezama Gregory Randall Rafael Grompone von Gioi

We present a method for the automatic detection of vanishing points in urban scenes based on finding point alignments in a dual space, where converging lines in the image are mapped to aligned points. To compute this mapping the recently introduced PClines transformation is used. A robust point alignment detector is run to detect clusters of aligned points in the dual space. Finally, a post-pro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان - پژوهشکده برق و کامپیوتر 1391

امروزه استفاده از منابع انرژی پراکنده کاربرد وسیعی یافته است . اگر چه این منابع بسیاری از مشکلات شبکه را حل می کنند اما زیاد شدن آنها مسائل فراوانی برای سیستم قدرت به همراه دارد . استفاده از میکروشبکه راه حلی است که علاوه بر استفاده از مزایای منابع انرژی پراکنده برخی از مشکلات ایجاد شده توسط آنها را نیز منتفی می کند . همچنین میکروشبکه ها کیفیت برق و قابلیت اطمینان تامین انرژی مشترکان را افزایش ...

The problems of sequential change-point have several important applications in quality control, signal processing, and failure detection in industry and finance and signal detection. We discuss a Bayesian approach in the context of statistical process control: at an unknown time  τ, the process behavior changes and the distribution of the data changes from p0 to p1. Two cases are consi...

2008
ALBERT VEXLER CHENGQING WU

Since the middle of the twentieth century, the problem of making inferences about the point in a surveyed series of observations at which the underlying distribution changes has been extensively addressed in the economics, biostatistics and statistics literature. CUSUM type statistics have commonly been thought to play a central role in non-sequential change point detections. Alternatively, we ...

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