Python - Basic
python.
PrecisionRule
Steerable filters - image gradients (based AI studio)
The steerable filter can provide the image gradient in any orientation/direction.
Steerable pyramids decomposition (based AI studio)
The steerable filter can provide the image gradient in any orientation/direction.
Scale invariant feature transform (SIFT)
The SIFT is a computer vision algorithm to detect, describe, and match local features in images. Applications include obejct recognition, 3D modeling, gesture recognition, video tracking, individual identification and macth moving.
Histogram of Oriented Grandients
histogram of oriented gradients.
Latex Template IST-UL
Instituto Superior Técnico, ULisboa, Thesis template, Master, PhD.
LaTex: Texlive + Texstudio + Zotero + Onedrive
Install and configure Zotero for reference management, TeX Live and TeXstudio for LaTeX writing, and OneDrive for online synchronization of Zotero.
Physics-Ultrasonic Guided Waves
Basic expressions.
Signal analysis in time domain
2.1 信号的预处理 概念：在对信号进行变换、提取、识别或评估之前，对检测信号进行的转换、滤波、放大等处理； 作用：抑制信号中的噪声，提高检测信号的信噪比，便于信息提取； 常用的信号预处理方法： 信号类型转换：将信号转变为便于处理的信号形式； 信号放大：增强微弱信号幅度或强度的过程。 其目的在于使信号在传输后，特别是远距离传输后，有足够的信号强度。 信号滤波：保留有用频段...
Non-Stationary signal processing
许多随机过程从本质上说是非平稳的，利用傅里叶变换不能有效的进行时频分析。对千非平稳、非正弦的机电设备动态信号的分析，必须寻找既能够反映时域特征又能够反映频域特征的新方法，才能提供信号特征全貌，正确有效地进行时、频分析。