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License plate recognition is widely used in expressways, such as our common electronic toll collection (ETC) system and the detection of traffic violation vehicles. In addition, access control in residential areas or underground garages will also be used. Basically, it will be used in all places where vehicle identity detection is required. br ...

Python generates character video 1, Foreword The video output of the Caton command line is not very good, but the effect of using the Caton command line is not good. So I intend to directly generate an mp4 character video. The general idea is the same as before: Python 20 lines of code to realize video character. Let's take a look at an eff ...

About cam_lidar_calibration (2021) installation and use I brief introduction Among the many open source programs calibrated by lidar and camera, cam has a relatively good effect_ lidar_ Calibration. The calibration process of other open source packages is complex or the error is too large. The open source package has been revised. The followi ...

Novice beginners hope to take notes to record what they have learned. They also hope to help those who are also beginners. They also hope that the big guys can help correct mistakes ~ infringement legislation and deletion. catalogue 1, Principle analysis 2, Code analysis 1. Main part - load_mosaic 2,load_image function 3,random_perspectiv ...

1. motivation 1. Aiming at the problem of how to extract the appropriate features of the image, this paper proposes a convolution branch of multiple branches, each branch adopts different receptive fields, and decomposes the image into different receptive fields 2. Aiming at how to find similar patch es for missing regions, this paper propose ...

1. Problem description This paper realizes the real-time detection of the tennis ball in the image by reading the image taken by the camera, calculating its distance and determining its orientation. The core problem is how to detect tennis from the picture taken by the camera and eliminate interference items. In addition, in order to apply thi ...

How to improve the classification accuracy of cifar-10 data set 1, Problem description When dealing with image recognition or image classification or other machine learning tasks, we are always confused about what improvements can improve the performance of the model (recognition rate, classification accuracy)... Or what parameters are we adj ...

Translation | OAK China Author| nindanaoto This article was first published in oakchina.cn 1, Foreword In this article, I will explain how to use based on LXD OAK-D ORB SLAM3 with ROS noetic. I assume that the reader is using Ubuntu as the host operating system and has some basic knowledge of ROS and LXD. 2, General settings In this sect ...

[OpenCV complete routine] 93 Histogram of noise model Welcome to pay attention "100 complete OpenCV routines" Series, continuously updating Welcome to pay attention "Python Xiaobai's OpenCV learning course" Series, continuously updating 2. Noise model The noise source in digital image mainly comes from the process ...

Color space type conversion Color model is an abstract mathematical model that describes the method of using a set of values (usually three or four values or color components) to represent color. Common color spaces include: GRAY color space (GRAY image)XYZ color spaceColor space crybHSV color spaceHLS color spaceCIELab color spaceCIELuv ...