EEG Spectrogram: A Python Flask EEG Analysis Tool Development - Part 2
Channel: BioniChaos
Date: 2023-11-26

In this video, I demonstrate how to integrate a frequency spectrogram view into a web application. The spectrogram, initially accessible only via a separate URL, is shown in a Plotly window. I discuss the need to display the spectrogram within the same HTML window and delve into the technical aspects of achieving this. The video covers modifying JavaScript and HTML code to render the spectrogram directly in the web page, using Plotly.js for visualization. I troubleshoot various issues, such as updating the spectrogram based on user interactions and optimizing performance. The focus is on displaying seizure data in the frequency domain, with attention to different channels and the impact of noise control on the spectrogram.

Timestamps
(00:00) Introduction to the frequency spectrogram issue
(01:02) Discussing the need for an HTML spectrogram plotly container
(02:00) Explaining data fetching and rendering in JavaScript
(03:06) Troubleshooting and explaining code functions
(04:02) Integrating data with Flask and Plotly.js
(05:10) Modifying JavaScript for better data visualization
(06:03) Addressing issues with spectrogram display in HTML
(07:01) Tips for integrating Plotly.js in web pages
(08:05) Revising HTML and JavaScript for spectrogram rendering
(09:05) Debugging and refining the code
(10:02) Displaying the complete spectrogram and discussing issues
(11:04) Adjusting amplitude and frequency scales
(12:07) Modifying controls and removing unnecessary elements
(13:06) Optimizing performance and server load
(14:01) Updating spectrogram based on user controls
(15:01) Finalizing noise control and frequency scale adjustments
(16:02) Demonstrating the seizure spectrogram in different channels
(17:05) Discussing the responsiveness of controls
(18:03) Explaining the effect of different controls on the spectrogram
(19:06) Analyzing seizure energy in low-frequency components
(20:03) Linking wavelet denoise control to spectrogram updates
(21:11) Investigating granular appearance in the spectrogram
(22:00) Exploring Python functions for spectrogram generation

I use GitHub Copilot and ChatGPT for development. 
The tools I develop are available on https://bionichaos.com 
You can support my work on https://patreon.com/bionichaos

#signalprocessing  #EEGDataInterpretation#SpectrogramVisualization #WebDevelopment #JavaScriptCoding #Plotly.jsIntegration #HTMLandCSS #DataVisualization #SeizureDataAnalysis #FlaskWebFramework #InteractiveWebInterface #FrequencyDomainAnalysis #UserInterfaceOptimization #TechnicalTroubleshooting #PythonProgramming #SignalProcessing #EEGDataInterpretation