How to Build a Video Moderation Application with AWS Rekognition

The application implements video moderation using Vonage Video API and AWS Rekognition, enabling the detection of inappropriate content in real-time. The backend is built with AWS Serverless components such as AWS Lambda, AWS API Gateway, and AWS DynamoDB, while the client-side application is a React Single Page Application. The useModeration hook sends every second a screenshot of the camera or screen to the moderation API function, which analyzes the image using AWS Rekognition and detects inappropriate content. If detected, it mutes the video from the offending publisher and sends a notification to all participants. The application architecture allows for customization based on the user's use case, including muting audio/video or disconnecting users from joining sessions again.