[Feature Extraction] Extract brainwave delta, theta, alhpa, beta, and gamma based on Matlab

v Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more complete Matlab code and simulation customization content, click Intelligent optimization algorithm Neural network prediction Radar communication Wireless sensor Power system Signal processing Image processing Path planning Cellular automaton Drone Content introduction Brain waves are electrical signals emitted by the human […]

Ubuntu20 runs SegNeXt code to extract road water bodies (4) – successfully solved the problem of iou of 0 in training and inference of your own data set! !

In this blog post of mineUbuntu20 runs SegNeXt code to extract road water bodies (3) – SegNeXt training and inference on your own data set After a series of configurations The iou calculation is 0 After many attempts Finally, I tried out the correct configuration method! For specific configuration details, please see this article 1. […]

Top 5 Python libraries for extracting text from images

The main thing is to understand and master the OCR tool for text positioning and recognition~ Optical character recognition is an old but still challenging The problem involves detecting and recognizing text from unstructured data, including images and PDF documents. It has wide applications in areas such as banking, e-commerce, and social media content management. […]

OpenCV+OpenCvSharp implements image feature vector extraction and similarity calculation

The image feature vector is a mathematical representation used to describe the content of the image. It can reflect the color, texture, shape and other information of the image. Image feature vectors can be used to do many things, such as image retrieval, classification, recognition, etc. This article will introduce the extraction of image feature […]

matlab image morphology operations – expansion, erosion, opening and closing operations, skeleton extraction and refinement

1. Experiment purpose 1. Expand, corrode, observe and analyze image changes on multiple binary images 2. Perform opening and closing operations on multiple binary images, observe and analyze image changes 3. Use the bwmorph function to perform skeleton extraction, refinement, and coarsening operations on the image, and observe and analyze the changes in the image. […]

CRC_EXTRA for calculating mavlink2 checksum

When studying the mavlink2 protocol of PX4, when calculating the checksum, a CRC_EXTRA needs to be added to participate in the calculation (but CRC_EXTRA does not participate in data transmission and is only used to calculate the checksum). However, the definition of CRC_EXTRA of mavlink2 has not been found online. array. Later I found it […]

Super detailed! Complete data extraction of calling libraries based on Python probes

Article directory Insert image description here @[toc] Preface 1. Simple and crude method – encapsulate the mysql library 2.Python probes 3. Make probe module 4. Direct replacement method 5. Summary digression Preface Recently, I have been improving the company’s monitoring system and found that some runtime problems often occur when the project is running. These […]

Extraction and constexpr

I recently reviewed the extraction and found that it is similar to constexpr. The records are as follows. 1. Extraction extraction The central idea of STL is to separate the container and the algorithm, and then glue the two together through the iterator. Performing algorithm calculations through iterators requires two issues: Question 1. Different algorithm […]

What features can be extracted from trajectory data?

Directory trajectory Basic elements of trajectory Trajectory feature extraction core code references Trajectory Physics calls the collection of time and space objects formed by the movement of objects called trajectories, which are used to describe the spatiotemporal changes of object movement. Trajectories have spatiotemporal characteristics and are a kind of spatiotemporal data. Trajectory objects are […]

Extract audio from video files using Python

Introduction: In multimedia processing, sometimes we need to extract audio from video files for further processing or analysis. This article will introduce how to use the Python programming language to extract audio from video files, and provide a simple GUI interface to facilitate user operation. Text: Introduction: Introducing the background and importance of audio extraction, […]