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Tues-A17_01-Beatty-Gridding
In this session, I will focus on the gridding method for fast image reconstruction from non-
Cartesian data [1-5]. While gridding is not the only game in town, it is the reconstruction of
choice when reconstruction time is an issue. Other reconstruction techniques include rBURS
[6] and non-Cartesian iterative methods [7,8]. Non-Cartesian iterative methods generally use
gridding and inverse gridding as their core operation, so even when gridding is not the right
solution for an application, an understanding of gridding can be useful.
I will cover the main steps of the gridding algorithm and then discuss some implementation tips
that can signicantly reduce the computation time. Finally, I will present some illustrations and
viewpoints that I have found to aid in an intuitive understanding of the gridding method, which
can be helpful when designing the density compensation function and judging the appropriateness
of gridding as a solution for a particular application.
- 2012-05-27 18:19:18下载
- 积分:1
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04154991
EEG-Based Lapse Detection With High Temporal resolution
- 2011-02-08 19:27:16下载
- 积分:1
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hb_to_msm
将利用HBMAT读出来的hb文件转换为matlab稀疏存贮,得到结构刚度阵质量阵等等(Will be read out by HBMAT hb files into matlab sparse storage, mass matrix by matrix stiffness, etc.)
- 2011-04-29 14:23:12下载
- 积分:1
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tulunquxian1
一个滚珠型弧面凸轮的m文件,可以帮助你利用matlab来完成弧面凸轮曲线的设计(A ball-type arc cam m-files that can help you use matlab to complete the arc cam curve design)
- 2011-08-13 11:04:21下载
- 积分:1
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xiaobobianhuanshujuyasuo
小波变换在图像数据压缩中的应用毕业论文,自己原创的,比较简单的压缩方法,供参考交流。版权所有,侵权必究。(Wavelet transform in image data compression using a graduation thesis, their original, simple compression method, and for information exchange. Copyright All Rights Reserved.
)
- 2011-10-05 08:36:48下载
- 积分:1
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log_psd
This function takes the n time domain samples (real or complex)
and finds the psd by taking (fft/n)^2. The two sided spectrum is
produced by shifting the psd The array freq provides the appropriate
frequency values for plotting purposes.
By taking 10*log10(psd/max(psd)) the psd is normalized values beow 60db
are set equal to -60db
- 2011-11-18 21:07:22下载
- 积分:1
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Wind-speed-prediction
基于最小二乘支持向量机理论,结合某风电场实测风速数据,建立了最小二乘支持向量机风速预测模型。对该风电场的风速进行了提前1h的预测,其预测的平均绝对百分比误差仅为8.55 ,预测效果比较理想。同时将文中的风速预测模型与神经网络理论、支持向量机(support vector machine,SVM)理论建立的风速预测模型进行了比较。仿真结果表明,文中所提模型在预测精度和运算速度上皆优于其他模型。
(Based on least squares support vector machine theory, combined with a wind farm measured wind speed data, the establishment of a wind vector machine forecasting model of least squares support. The velocity of the wind farm were predicted in advance 1h, the mean absolute percentage error of only 8.55 of its forecast, forecast effect is ideal. While the text of the wind speed forecasting models and neural networks, support vector machines (support vector machine, SVM) wind speed prediction models were compared with established theories. Simulation results show that our proposed model on prediction accuracy and computing speed are superior to other models.)
- 2014-05-24 17:32:46下载
- 积分:1
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analysis-of-water-quality
关于水质分析的程序,程序写的很牛!很有参考价值!(On the analysis of water quality of the program, the program was very cattle! A good reference value!)
- 2014-12-08 10:00:28下载
- 积分:1
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chepai
在matlab开发环境下,实现彩色图片的车牌定位及车牌字符的分割(In matlab development environment, to achieve color picture of the license plate location and license plate character segmentation)
- 2013-11-13 21:30:18下载
- 积分:1
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eis
基于时空梯度的多分辨率目标跟踪稳像算法,该方法可用于处理有前景目标的图像,效果很好(Space-time gradient based target tracking of multi-resolution image stabilization algorithm)
- 2010-06-26 10:36:52下载
- 积分:1