نتایج جستجو برای: diamond algorithm

تعداد نتایج: 774220  

Journal: :Applied sciences 2023

Chronic diseases are severe and life-threatening, their accurate early diagnosis is difficult. Machine-learning-based processes of data collected from the human body using wearable sensors a valid method currently usable for diagnosis. However, it difficult sensor systems to obtain high-quality large amounts meet demands diagnostic accuracy. Furthermore, existing feature-learning methods do not...

2014
Bichu Vijay

This paper propose a new block matching algorithm for motion estimation. Four different block matching algorithms using for motion estimation are evaluated where no of computation to find out best match and peak signal to noise ratio (PSNR) are used to find out most optimal algorithm. Four different block matching algorithm are implemented in MATLAB. Each algorithm is evaluated using PSNR and s...

2001
Ce Zhu Xiao Lin Lap-Pui Chau Keng Pang Lim Hock-Ann Ang Choo-Yin Ong

In block motion estimation, search pattern with different shape or size has very important impact on search speed and distortion performance. In this paper, we propose a novel algorithm using hexagon-based search (HEXBS) pattern for fast block motion estimation. The proposed HEXBS algorithm may find any motion vector with fewer search points than the diamond search (DS) algorithm. The speedup g...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده علوم پایه 1391

abstract: in this thesis, we focus to class of convex optimization problem whose objective function is given as a linear function and a convex function of a linear transformation of the decision variables and whose feasible region is a polytope. we show that there exists an optimal solution to this class of problems on a face of the constraint polytope of feasible region. based on this, we dev...

2015
Guochuan Shi Guanyu Chen Binhao Shi

This paper proposes a new fragile video watermarking algorithm based on motion vector, we first use the frame difference method to detect moving targets, determine the motion macro blocks. Then in the macroblock by the diamond search, the fragile watermark is embedded in the P-frame motion vectors for inter prediction, so that by changing the mapping of pixel precision motion vector is to be em...

Journal: :Quantum Information & Computation 2009
Nathaniel Johnston David W. Kribs Vern I. Paulsen

The diamond and completely bounded norms for linear maps play an increasingly important role in quantum information science, providing fundamental stabilized distance measures for differences of quantum operations. Based on the theory of completely bounded maps, we formulate an algorithm to compute the norm of an arbitrary linear map. We present an implementation of the algorithm via Maple, dis...

2013
Vanshree Verma Ravi Mishra

.Various methods have been proposed and developed for video shot boundary detection. Commonly used method for shot detection is Block Matching Algorithm. It is the most commonly used motion estimation technique. Various block matching algorithms have been proposed for shot detection such as Exhaustive Search, Three Step Search, New Three Step Search, Simple and Efficient Search, Four Step Searc...

2015
Meiguang Zhang Haiyan Yan Baobing Zheng Qun Wei

The search for novel superhard materials with special structures and improved thermal stability and hardness remains considerably experimental and theoretical challenges. Recent reports proposed that higher carbon content in ternary B2CxO compounds, which are isoelectronic with diamond, would lead to increased strength and hardness. This notion was derived from the calculated elastic parameters...

Journal: :journal of modern processes in manufacturing and production 0
vahid barahimi department of mechanical engineering, najafabad branch, islamic azad university, najafabad, iran masoud farahnakian 1department of mechanical engineering, najafabad branch, islamic azad university, najafabad, iran

surface roughness is a significant parameter which determines the efficiency of optical components. surface damages induced by grinding strongly influence the mechanical strength and optical quality of optical glasses. it is meaningful to rapid evaluate the surface roughness through the measurement of different grinding parameters. in this study, a cup diamond wheel (d64) is used in grinding pr...

Journal: :ACS applied materials & interfaces 2013
Srinivasu Kunuku Kamatchi Jothiramalingam Sankaran Cheng-Yen Tsai Wen-Hao Chang Nyan-Hwa Tai Keh-Chyang Leou I-Nan Lin

We report the systematic studies on the fabrication of aligned, uniform, and highly dense diamond nanostructures from diamond films of various granular structures. Self-assembled Au nanodots are used as a mask in the self-biased reactive-ion etching (RIE) process, using an O2/CF4 process plasma. The morphology of diamond nanostructures is a close function of the initial phase composition of dia...

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