Machine-vision

Notes for CSC449.
More in the following two repos:
Hough transformation https://github.com/ChloeZPan/Hough-Transform
DCF tracker https://github.com/ChloeZPan/DCF-tracker

Due to the course policy, I cannot post my code.

Problem Solved

• initialize array: empty or zero
  empty will have Nan which cause further problems

• boolean as integers
  False 0
  True 1

• overlap of mask
  A good way to calculate when no overlapping
  mask = (x_region == np.max(x_region))

• virtual environment
  Use venv in pycharm terminal
  https://zhuanlan.zhihu.com/p/60647332

  cd venv/bin
source activate
deactivate

  conda env
  https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html

  cd miniconda3/bin
source activate

conda init

• wget in Mac

  /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
  

  brew install wget

• download file from google drive

  pip install gdown
gdown https://drive.google.com/uc?id=file_id

  gdown https://drive.google.com/uc?id=1ZqJs2AGtMTfGTgH1oHTP_ZEFXRNX3uLj

• permission denied when run ./get_stanford_models.sh

  chmod u+x get_stanford_models.sh
./get_stanford_models.sh

• _tkinter.TclError: no display name and no $DISPLAY environment variable
  https://stackoverflow.com/questions/37604289/tkinter-tclerror-no-display-name-and-no-display-environment-variable

  import matplotlib
matplotlib.use('Agg')

Some Resources

A Comprehensive Guide to Convolutional Neural Networks
https://towardsdatascience.com/a-comprehensive-guide-to-convolutional-neural-networks-the-eli5-way-3bd2b1164a53

ml-cheatsheet
https://ml-cheatsheet.readthedocs.io/en/latest/loss_functions.html

Stochastic Gradient Descent with momentum
https://towardsdatascience.com/stochastic-gradient-descent-with-momentum-a84097641a5d

PyTorch - DataLoader
https://blog.csdn.net/g11d111/article/details/81504637

Fourier Transform? A visual introduction
https://www.youtube.com/watch?v=spUNpyF58BY

Canny Edge Detection Step by Step in Python — Computer Vision
https://towardsdatascience.com/canny-edge-detection-step-by-step-in-python-computer-vision-b49c3a2d8123

Matrix derivatives
https://blog.csdn.net/promisejia/article/details/80159619

Properties of the Trace and Matrix Derivatives
https://web.stanford.edu/~jduchi/projects/matrix_prop.pdf

Pytorch - Word Embedding
https://www.pytorchtutorial.com/10-minute-pytorch-7/

Pytroch - pack_padded_sequence()
https://www.cnblogs.com/sbj123456789/p/9834018.html
https://blog.csdn.net/lssc4205/article/details/79474735

N-gram
https://blog.csdn.net/songbinxu/article/details/80209197

LSTM
https://colah.github.io/posts/2015-08-Understanding-LSTMs/

Image Captioning (CNN-RNN)
https://shenxiaohai.me/2018/10/22/pytorch-tutorial-advanced-04/

Embed attention mechanism into image cpation model
https://www.jianshu.com/p/79f48437a442

Input and output dimension in rnn,lstm,gru
https://www.jianshu.com/p/b942e65cb0a3

Pytorch from scratch
https://baijiahao.baidu.com/s?id=1597446499634684834&wfr=spider&for=pc