Non-Additive Video Steganography Based on Inter-Frame Distortion Propagation Chains

This research paper describes a new method for video steganography (hiding secret messages inside video files) that improves upon older techniques by better managing how distortion (unwanted changes to the video) spreads between frames. Instead of simply adding distortion like previous methods, this approach uses Synchronizing Mode Directions and a Distortion Propagation Chains model to track and control how distortion moves across frames, making the hidden messages harder for detection software to find while keeping the video quality high.