搜索结果: 1-15 共查到“工学 variance”相关记录23条 . 查询时间(0.219 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：An active contour model with local variance force term and its efficient minimization solver for multi-phase image
局部方差力项 活动轮廓模型 多相图像 最小化求解器
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2023/5/8
In this work, we propose an active contour model with a local variance force (LVF) term that can be applied to multi-phase image segmentation problems. With the LVF, the proposed model is very effecti...
ACCOUNTING FOR VARIANCE IN HYPERSPECTRAL DATA COMING FROM LIMITATIONS OF THE IMAGING SYSTEM
Supervised classification decorrelation Mahalanobis distance Signal-to-noise ratio (SNR) Bayesian approach Principal component analysis Pixel-wise calibration
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2016/11/23
Over the course of the past few years, a number of methods was developed to incorporate hyperspectral imaging specifics into generic data mining techniques, traditionally used for hyperspectral data p...
Bias-Variance Tradeoffs in Program Analysis
Program Analysis Machine Learning Verification
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2016/5/24
It is often the case that increasing the precision of a program analysis leads to worse results. It is our thesis that this phenomenon is the result of fundamental limits on the ability to use precise...
VARIANTS TO COMPUTE VARIANCE INFORMATION FOR MASS DATA
TLS LIDAR Mapping Acquisition Georeferencing Mobile Orientation Accuracy
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2016/2/29
Besides the development of automatic algorithms for the registration of terrestrial laser scans, the derivation and supply of quality
information is of increasing interest when collecting scan data. ...
Small Variance Asymptotics for Dirichlet Process Mixtures of SVMs
Small Variance Asymptotics Dirichlet Process Mixtures SVM
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2016/1/22
Infinite SVM (iSVM) is a Dirichlet process (DP) mix-ture of large-margin classifiers. Though flexible in learning nonlinear classifiers and discovering latent clustering structures, iSVM has a difficu...
ATMOSPHERIC SMOG MODELLING,USING EOS SATELLITE ASTER IMAGE SENSOR,WITH FEATURE EXTRACTION FOR PATTERN RECOGNITION TECHNIQUES AND ITS ANALYSIS OF VARIANCE WITH IN-SITU GROUND SENSOR DATA
Smog Absorption Bands Satellite-Imagery Spectral Signature Sensors ASTER
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2015/12/28
Atmospheric pollution was previously considered as a 'Brown Cloud’ phenomenon restricted to industrialized urban regions. Studies in field stations and satellite observations made since the last decad...
Range Image Sequence Analysis by 2.5-D Least-Squares-Tracking with Variance Component Estimation and Robust Variance Covariance Matrix Estimation
Range Imaging Least Squares Tracking Variance Component Estimation
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2015/12/17
In this article, a range image sequence tracking approach is proposed, which combines 3-D camera intensity and range observations
in an integrated geometric transformation model. Based on 2-D least s...
INTEGRATED BUNDLE ADJUSTMENT WITH VARIANCE COMPONENT ESTIMATION–FUSION OF TERRESTRIAL LASER SCANNER DATA,PANORAMIC AND CENTRAL PERSPECTIVE IMAGE DATA
Bundle adjustment variance component estimation laser scanner camera panorama calibration
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2015/11/10
Terrestrial laser scanners and digital cameras can be considered largely complementary in their properties. Several instruments combine a laser scanner and a camera, with the laserscanner providing ge...
Classification and segmentation of terrestrial laserscanner point clouds using local variance Information
3D laser scanning point cloud classifi cation segmentation
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2015/8/24
With the use of terrestrial laser scanning, it is possible to capture thousands of 3-dimensional points on the surface of an object. The problem is that the vast quantity of data that needs to be mani...
The fastest mixing Markov process on a graph and a connection to a maximum variance unfolding problem
Markov process fast mixing second smallest eigenvalue semidefinite programming dimensionality reduction
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2015/8/10
We consider a Markov process on a connected graph, with edges labeled with transition rates between the adjacent vertices. The distribution of the Markov process converges to the uniform distribution ...
Design and Performance of a Minimum-Variance Hybrid Location Algorithm Utilizing GPS and Cellular Received Signal Strength for Positioning in Dense Urban Environments
Design Performance Minimum-Variance Hybrid Location Algorithm GPS and Cellular Received Positioning in Dense Environments
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2015/6/25
This paper shows how the complementary advantages of GPS and cellular received signal strength (RSS) positioning methods improves hybrid location estimation performance in dense urban environments. In...
A METHOD BASED ON LOCAL VARIANCE FOR QUALITY ASSESSMENT OF MULTIRESOLUTION IMAGE FUSION
Remote Sensing Image Fusion Evaluation Spatial Quality
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2015/3/24
Several methods exist to combine a panchromatic image of high spatial resolution with lower resolution multispectral imagery. Of
particular interest are those methods designed to simulate real multi...
PRECISION AGRICULTURE AND REMOTE SENSING; VARIANCE ANALYSIS OF WHEAT CROP BY SPECTRAL INDICES
Agricultural remote sensing and analysis of variance wheat crops spectrum index
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2015/2/3
PRECISION AGRICULTURE AND REMOTE SENSING; VARIANCE ANALYSIS OF WHEAT CROP BY SPECTRAL INDICES.
Multiresolution image fusion is an emerging area of research for use in military and commercial applications. While many methods for image fusion have been developed, improvements can still be made. I...
Camera Calibration with Radial Variance Component Estimation
Camera Calibration Geometrical Accuracy Variance Component Estimation UAV System Evaluation
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2014/12/4
Camera calibration plays a more and more important role in recent times. Beside real digital aerial survey cameras the photogrammetric market is dominated by a big number of non-metric digital cameras...