Programmer Think

1, Introduction to the characteristic principle of ROPS (rotational projection statistics)   in this article, we continue to learn how to use the PCL:: ropestimate class to extract the features of points. The feature extraction method implemented in this class is written by Yulan Guo, ferdous sohel, Mohammed bennamon, min Lu and Jianwei w ...

1, Foreword The real-time dynamic trajectory has undergone many versions of iteration. This function was originally customized by customers. It mainly needs to dynamically display the motion trajectory of GPS on the map. One application scenario is a car with monitoring. In real time, the longitude and latitude information can be received in t ...

preface Simply record the notes about the image operation part of opencv 1, Auxiliary tool Image Watch Image Watch is a free and powerful image data viewing plug-in. During image viewing, it can display its pixel value and channel number, which is very helpful for viewing results after image operation. Download address attached VS2 ...

Python can detect and recognize your face from images or videos. Face detection and recognition is one of the research hotspots in the field of computer vision. The applications of face recognition include face unlocking, security protection, etc. doctors and medical staff use face recognition to obtain medical records and medical history a ...

OpenCV learning notes (3)_ Examples of gray threshold filtering and connected domain analysis in OpenCV 1. Example source Today's example comes from Halcon's example program: threshold.hdev read_image (Audi2, 'audi2') fill_interlace (Audi2, ImageFilled, 'odd') threshold (ImageFilled, Region, 0, 90) connection (Region, ConnectedRegions) ...

1, Basic image processing -- operation All the following functions are omitted cv2. 1.1.1 addition operation As has been said before, for a computer, an image is just a matrix. The addition of images is the addition of matrices. We use the add(a, b) function to realize the image addition operation. Note: when a + B < = 255, a+b = a+b; ...

Libtorch It is the C++ API officially provided by pytoch, and the use method can be said to restore pytoch to a great extent. 1, Environment configuration GitHub address: BASNetVS2017+CUDA 10.1+cuDNN 7.6.5+OpenCV 3.4.11Pytorch 1.5.0+torchvision 0.6.0Libtorch 1.5.0 (release): extraction code: 865k https://pan.baidu.com/s/1Ty-UPZWEOnNRPwl ...

For convolution formula Maybe some people know, maybe some people don't know, or just know but don't understand. But whether you know the meaning of this formula or not, it doesn't affect you to realize a convolution. I won't talk about his specific mathematical meaning first, because many people speak more clearly and thoroughly than I do. Wh ...

1 image noise Because the process of image acquisition, processing and transmission will inevitably be polluted by noise, which hinders people's understanding, analysis and processing of images. Common image noises include Gaussian noise, salt and pepper noise and so on. 1.1 salt and pepper noise Salt and pepper noise, also known as impulse ...

Article catalogue Problem descriptionSensor model 1. pinhole camera model 2. Depth rangingcode implementationsummaryReference articles 1, Problem description Three dimensional reconstruction aims to represent three-dimensional objects as mathematical models that are easy to deal with in computer. In recent years, due to the rapid ...