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keyframe

于 2020-09-26 发布文件大小:14744KB

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下载积分: 1 下载次数: 863

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代码说明：

视频的关键帧计算，和关键帧提取，附有实验报告(Video key frame basis, and key frame extraction, with test report)

文件列表：

KeyFrameDiff

............\241.png,26001,2010-05-20
............\247.png,25913,2010-05-20
............\253.png,25929,2010-05-20
............\270.png,23177,2010-05-20
............\29.png,25213,2010-05-20
............\31.png,95558,2010-05-20
............\36.png,25736,2010-05-20
............\56.png,99383,2010-05-20
............\60.png,94066,2010-05-20
............\64.png,99220,2010-05-20
............\EulerDistance.m,371,2009-05-28
............\EulerDistanceDiff.asv,380,2009-05-27
............\EulerDistanceDiff.m,281,2009-05-28
............\ExtractKeyFrame.asv,2766,2010-05-18
............\ExtractKeyFrame.m,2766,2010-05-18
............\extremum.m,463,2009-05-22
............\FrameDiffMean.m,167,2009-05-27
............\FrameDiffVar.m,165,2009-05-27
............\FrameNum.m,57,2009-06-01
............\psintrowalk.avi,2336918,2007-05-21
............\road.avi,19463168,2010-05-17
............\roadkey.avi,578560,2010-05-20
............\SimilarRatioDiff.m,304,2009-05-27
............\untitled.asv,5795,2010-05-20
............\untitled.fig,3731,2010-05-20
............\untitled.m,5879,2010-05-20
............\vipmen.avi,16442880,2010-05-17
............\vipmenkey.avi,578560,2010-05-20
report.doc,792576,2010-07-19

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fandebao
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说明：声波方程正演模拟大模型样例。包含三个地质层，分别对应速度可以自行修正。震源函数是雷克子波。 C源程序，输出结果Matlab绘制。(Acoustic wave equation forward modeling big model of the sample. Consists of three geological layers, corresponding to the speed you can correct itself. Lake wavelet source function is. C source code, the output of Matlab draw.)

2009-08-24 22:17:28下载

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FFTjuanji
对鸟鸣信号和脉冲信号进行傅里叶变换并相乘，实现卷积功能(Birdsong signal and the pulse signal, the Fourier transform and multiplying the convolution function)

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优化算法配套的程序代码，可直接运行，资料很全(Optimization matching code can be run directly, the information is all)

2010-09-05 21:20:18下载

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This code is used to segment human body parts including head, left arm, right arm, left forearm, right forearm, upper body, left thigh, right thight, left leg and right leg.

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Numerical simulation using the classical expression for the form of the second space derivative and the fractional differential scheme for the Grunwald–Letnikov operator

2013-04-05 10:45:04下载

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color detection used to find color in images

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最速下降法
说明：最速下降法是迭代法的一种,可以用于求解最小二乘问题(线性和非线性都可以)。在求解机器学习算法的模型参数，即无约束优化问题时，梯度下降（Gradient Descent）是最常采用的方法之一，另一种常用的方法是最小二乘法。在求解损失函数的最小值时，可以通过梯度下降法来一步步的迭代求解，得到最小化的损失函数和模型参数值。反过来，如果我们需要求解损失函数的最大值，这时就需要用梯度上升法来迭代了。在机器学习中，基于基本的梯度下降法发展了两种梯度下降方法，分别为随机梯度下降法和批量梯度下降法。(The steepest descent method is a kind of iterative method, which can be used to solve the least squares problem (both linear and nonlinear). In solving the model parameters of machine learning algorithm, that is, unconstrained optimization, gradient descent is one of the most commonly used methods, and the other is the least square method. When solving the minimum value of loss function, the gradient descent method can be used step by step to get the minimum value of loss function and model parameters. Conversely, if we need to solve the maximum value of the loss function, then we need to use the gradient rise method to iterate. In machine learning, two kinds of ladders are developed based on the basic gradient descent method)

2019-11-24 13:06:03下载

积分：1

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