projection – Page 2

Intersection of Plane and Cylinder and Projection of Intersection Line

1. Draw a cylindrical surface import sympy as sy from sympy.plotting import plot3d_parametric_surface # define variables and parameters u, v = sy.symbols(‘u v’) # parameters r = 2 # cylinder radius h = 5 # column height # define the cylinder equation x = r * sy.cos(u) # parametric equation for x y = r […]

Shi-Tomas corner detection, sub-pixel corner position optimization, ORB feature points, feature point matching, RANSAC optimized feature point matching, camera model and projection

Directory 1. Shi-Tomas corner detection 2. Sub-pixel level corner position optimization 3. ORB feature points 4. Feature point matching 5. RANSAC optimizes feature point matching 6. Camera model and projection 1. Shi-Tomas corner detection //Shi-Tomas corner detection int test1() { Mat img = imread(“F:/testMap/lena.png”); if (!img.data) { cout << “Error reading image, please confirm whether […]

Mybatis-puls – three formats of conditional query + conditional query null judgment + query projection

Foreword The Wrapper interface parameter in the package of mybatis_plus is used to package query conditions Start the above simple query in the test class, and then the console will output a lot of irrelevant logs. Here, close these logs first. Remove irrelevant log files First create a new XML configuration file Then it becomes […]

Based on the post-projection algorithm through the wall radar imaging with matlab code

?Author’s brief introduction: A Matlab simulation developer who loves scientific research. He cultivates his mind and technology at the same time. Matlab project cooperation can be privately messaged. Personal homepage: Matlab Research Studio Personal creed: Investigate knowledge. For more Matlab simulation content click Intelligent optimization algorithm Neural network prediction Radar communication Wireless sensor Power system […]

Talking about ByteHouse Projection Optimization Practice

Pre-aggregation is an optimization method commonly used in OLAP systems. Partial aggregation calculations are performed when data is loaded to generate aggregated intermediate tables or views, so that these pre-calculated aggregation results can be directly used in queries to improve query efficiency. Performance, most of the pre-aggregation methods are implemented using materialized views. The Projection […]

Comparison of two-dimensional projection of iris data set based on LDA and PCA algorithms

Table of Contents 1. Introduction of the author 2. Introduction to LDA and PCA Algorithms 2.1 LDA Algorithm 2.2 PCA Algorithm 2.3 The difference and connection between the two algorithms 3. Experimental procedure 3.1 Dataset Introduction 3.2 Algorithm process 3.3 Core Algorithm Introduction 3.4 Complete code 3.5 Experimental results and analysis 1. Introduction of the […]

From principle to c++ code implementation | Convert point cloud to Range image through spherical projection

Author: Fish Diving All Day | Source: DeepDriving Foreword Converting 3D laser point clouds into 2D range images (Range Images) through spherical projection (Spherical Projection) is a very common point in automatic driving application scenarios Cloud processing. After the point cloud is converted into a distance image, it is usually input to a 2D convolutional […]

Gaussian projection positive and negative calculation and belt changing program

Source project address: Gaussian projection: Gaussian_projection_coordinates (gitee.com) git clone: git clone [email protected]:yitian00/gaussian-projection.git Main window Recalculation window Algorithms Meridian arc length formula: code using System; using System.Collections.Generic; using System. ComponentModel; using System.Data; using System. Drawing; using System. Linq; using System. Text; using System. Threading. Tasks; using System. Windows. Forms; namespace Gaussian_projection_coordinates { public partial class Form2 […]

[openGL] Orthographic projection, perspective projection, MVP transformation

[openGL] Orthographic projection, perspective projection, MVP transformation Introduction This section mainly summarizes the MVP transformation (Model-View-Projection) to illustrate how objects in three-dimensional space are mapped to two-dimensional screens. Knowledge points View/Camera Transformation (view/camera transformation) Projection Transformation Orthographics projection ( Persperctive projection ViewPort Transformation 1. View/Camera Transformation 1.1. What is view transformation? View Transformation As the […]