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RSS订阅原创 Computer Vision | Clustering Basics
There are two major issues in thinking of clustering:What is a good inter-cluster distance?Single-link: Using the distance between the closest elementsComplete-link: Using the distance between the furthest elementsGroup average: Using the distance betw
2020-05-22 22:40:07
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原创 Learning of Gaussian Mixture Model (GMM)
Learning of Gaussian Mixture Model(GMM)Part 1. OutlineThe Gaussian mixture model has applications in image segmentation, object recognition, video analysis, etc. For any given data sample set, according to its distribution probability, the probability di
2020-05-16 11:20:52
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原创 K-means: principle and code
1 principleThere are several points.Initialize K center randomly.(K is the number of kinds you want to classify)Calculate distance between each elements and these centers. The element belongs to a center which distance is the smallest. In other words,
2020-05-15 13:06:12
326
原创 MobileNetV2 leaning notes
DirectoryFeatures and benefits of MobileNetSynopsisFeaturesThe structure of MobileNetV2Using keras to implemented MobileNetV2ConclusionReferenceFeatures and benefits of MobileNetSynopsisMobileNet is a compact and efficient CNN model proposed by Google,
2020-05-12 22:52:47
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原创 Basic introduction
YOLOYolo algorithm does not use a sliding window. Yolo divides the input image into SXS cells, and each cell is responsible for detecting objects’ falling into the cell. If the coordinates of the center of an object fall into a grid, the grid is responsib
2020-05-09 15:24:43
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原创 HOG（Histogram of Oriented Gradients）&SVM （Support Vector Machine）
HOG（Histogram of Oriented Gradients）&SVM （Support Vector Machine）1. Background Information1.1 Hog (Histogram of Oriented Gradients）HOG is a feature description for object detection in computer ...
2020-05-07 08:45:06
318
原创 Support vector machine（SVM）
The line of thinking is:(1) modify the activation function of logistics regression, and then put out the optimization function.(2) discuss the nature of this new optimiaztion function.(3) kernel fu...
2020-05-06 11:02:16
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原创 Opencv | Spatial Filters
Hello, everyone. Today, we are talking about spatial filters, a popular way to take object enhancement for special situations. For instance, there are lots of pictures of the moon in NASA, which is no...
2020-05-01 11:01:36
215
原创 Improvement of LeNet-5 model based on InceptionV1 model
DirectoryLeNet-5 modelFrameworkDisadvantagesInceptionV1 modelHow to improve LeNet-5 model?ConclusionReferenceThrough the study of the principle of reference [1] in Fire detection based on HSV color m...
2020-04-29 21:29:47
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原创 QT based software interface
The first step is to create a window //有且只有一个应用程序类的对象 QApplication a(argc, argv); //MyWidget继承与QWidget， QWidget是一个窗口基类 //所以MyWidget也是窗口类 //w就是一个窗口 MyWidget w; //窗口创建默认是隐藏，需...
2020-04-24 15:09:55
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原创 Tensorflow| Simple application of approaching stock prices through Tensorflow
Tensorflow| Simple application of approaching stock pricesToday I want to share a simple program of approaching stock prices through tensorflow. It is a very simple case but It could help us understa...
2020-04-22 09:47:58
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原创 TensorFlow: MNIST based on CNN
1 importimport tensorflow as tffrom tensorflow.examples.tutorials.mnist import input_datamnist = input_data.read_data_sets('MNIST_data', one_hot=True)trainimg = mnist.train.imagestrainlabel = m...
2020-04-21 16:12:30
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原创 Opencv | Color Space
Today, we are talking about color space in Opencv. In general, there are so many different colors in the world combining everything that we have seen.But specifically, it seems that only several basic...
2020-04-20 20:00:31
337
原创 Fire detection based on HSV color model and CNN
DirectoryHSV color modelThe flow chartDetect and locate fire and make CNN network training dataConclusionReferenceHSV color modelHSV is also been call HexconeModel. The parameters of this model are:...
2020-04-18 21:38:43
684
原创 GUI Based on Tkinter
GUI is the visualization of software pageLet’s talk about label firstl = tk.Label(window, text='OMG! this is TK!', bg='green', font=('Arial', 12), width=15, height=2)l.pack()Label the windowThe...
2020-04-15 11:50:24
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原创 Opencv|Document Scanning & Optical Character Recognition
Opencv|Document Scanning & Optical Character Recognition(OCR)Step 1. Import some packages and a pyfile named resize for the project.import cv2import numpy as npimport resizeStep 2. Import ...
2020-04-13 10:08:03
437
原创 TensorFlow : Several methods to improve accuracy
1 dropoutIt is used to prevent over fitting. This function randomly chooses some neurons to activate, so just part of neurons learn the “noise”.Its use is as follows:#at the beginningkeep_prob=tf....
2020-04-12 11:53:40
178
原创 Opencv | camera model
To apply three different camera models in different situations.Today, we are talking about models in camera. As we all know, there are a lot of lens in different position to change the road of light...
2020-04-11 22:23:02
334
原创 Feature Extraction based on LAB color model
DirectoryIntroduction to LAB color modelWhat is LAB?How to use LAB in OpenCV？RIO region divisionHOG feature of LABConclusionReferenceIntroduction to LAB color modelWhat is LAB?Lab color model is co...
2020-04-09 21:15:01
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原创 Deep learning|Image Classification Base on CNN
Image Classification Base on CNNhello! everyone ,this time I build a network for image classification which base on CNN.The first step:Prepare datathere are two datasets train and test. they both...
2020-04-07 12:01:15
381
原创 Faster Rcnn
Fast RCNN has integrated feature extraction, proposal extraction, bounding box expression (rect refine) and classification into a network, which greatly improves the comprehensive performance, especia...
2020-04-05 11:58:46
226
原创 Opencv| Handwritten Digit Detection
Opencv| Handwritten Digit DetectionToday I want to share some basic steps of a project for handwritten digit detection. At the end of the article, I put a small project about the principle of the KNN...
2020-04-03 10:01:05
262
原创 OpenCV: Fire detection and cutting
Fire detection and cutting1 modules2 Conditions3 merge the images4 show the image5 result6 the whole code1 modulesimport cv2import numpy as np2 ConditionsR>redThre: In a fire image, R is alw...
2020-04-02 09:43:13
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原创 Darknet-53|Some theories based on YOLOv3
Today, we are talking about YOLOv3, a great way to extract several characteristics in different objects, which includes a lot of complex parts and each of them also has plenty of details.Let’s begin ...
2020-04-01 09:11:49
238
原创 Sift algorithm and classify images——Learning notes 2
这里写自定义目录标题Sift algorithmOpencv Sift functionUsed SVM to classify images based on sift featuresReference：Sift algorithmSift,Scale-Invariant Feature Taransform,is established in the following steps：1...
2020-03-30 22:27:50
361
转载 SSD project
object detection algorithmSSDLast time,we find out a problem that we can not identify a flame only by its RGB and HSI feature as well as use the Background segmentation algorithm and designed filter...
2020-03-29 09:45:28
171
原创 Machine Learning|Digit recognition Basic on KNN
Machine Learning|Digit recognition Basic on KNNHello,every one ! Last time we talk about Linear Regression, this time I will introduce K-Neighbor algorithm in Machine Learning.1.BackgroundThe simpl...
2020-03-28 15:08:06
268
原创 Handwritten numeral recognition & Tensorboard
Tensorboard&TensorflowAs the most popular functional parts, Tensorflow and Tensorboard have a strong power to build and visualize your neural network which make your project much more understanda...
2020-03-26 21:08:37
576
原创 Neural network based on pytorch
Last time we talked about classical networks, this time we talked about residual networks and Yolo algorithm based on residual networksNow let’s take a look at his basic principle, as shown in the fi...
2020-03-26 08:50:57
235
原创 Opencv|Road Lane Line Detection
Opencv|Road Lane Line DetectionToday, I want to share a program of detection for road lane line in an image.In a similar way, we can also detect road lane line in a video.(Seen in the Extra Expansio...
2020-03-24 10:04:07
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原创 OpenCV : draw, threshold, kernel and edge detection
1 install opencvdownload opencv_python-4.2.0-cp37-cp37m-win_amd64.whlcmd: pip install opencv_python-4.2.0-cp37-cp37m-win_amd64.whl2 Functions2.1 show a pictureIt is used to show a picture.img1=c...
2020-03-23 12:13:28
316
原创 HOG+SVM|object detection
Today, I will show you something interesting, including feature of HOG as well as SVM to make object detection based on Python. Let’s start!1.HOGHOG（Histogram of Oriented Gradient）, the way being u...
2020-03-22 20:42:20
437
转载 Deep Learning Models
文章目录Fully Connected LayersImage Kernel and Convolution OperationApplying Image Kernel on an ImageTheory on CNNConvolution LayerPadding for Operate Convolution SuccessfullyConvolution Operation of Nue...
2020-03-21 11:30:17
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原创 Image Characteristics Extraction ——Learning notes 1
What is Image Characteristics Extraction?Image Characteristics Extraction is an important technique for Object Detection. For example, how to recognize the car and how to let the computer understand ...
2020-03-20 22:04:40
534
转载 First step on Fire Detection1
First step on Fire DetectionCV|The method about fire detectionHello,guys.If you are interested in object detection in the video stream based on python,follow me.Let’s study about how to find the fir...
2020-03-19 08:37:34
239
转载 Deep Learning|The Basic About Python and Linear Regression
Deep Learning|The Basic About Python and Linear RegressionHello everyone！this is my first time to use 优快云 to write a article. To day I will show you something about Python and Linear Regression.1.F...
2020-03-18 10:46:57
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原创 Preparation inTensorflow
Learning TensorflowHere I want to record the process of getting in touch with python, learning python and manipulating python finally. Fortunately, I have the chance to study tensorflow, a powerful t...
2020-03-17 00:06:24
163
原创 Neural network
Neural network@TOCIn the beginning, I will talk about the underlying principle of deep learning and the implementation of underlying algorithm with numpyLogistic regression with neural network think...
2020-03-16 11:46:46
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原创 About numpy 2020.3.14
About numpy 2020.3.14These days I have finished the video learning of python from av37566782, besides, I learnt a useful package called numpy.So today I want to share some basic skills of the packag...
2020-03-14 13:42:16
228
原创 Lao∣The first time with Python
Belows are what I have learned about Python from av37566782.1 printname = ccyage = 22print(name+" is my favourite singer, who is", age, "years old.")The result isccy is my fvourite singer, who ...
2020-03-13 19:21:52
202
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