Virtual Decals for Motion Graphic Stabilization
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Solution Overview
Problem
Current mobile devices lack the capability to select and apply video effects or motion graphics before filming, and existing systems fail to stabilize these graphics within the video frame, causing them to move with the camera instead of remaining fixed to the scene.
Innovation Solution
A method that allows users to select and embed motion graphics on a mobile device using virtual decals, which appear in the camera viewfinder to indicate their position, and utilize predictive algorithms to maintain the graphic's position relative to the scene during recording and post-processing, ensuring the graphic remains stationary within the video.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If motion graphics are applied to video captured on a mobile device, then the user can embed effects directly on the mobile device, but the graphic moves with the camera frame instead of remaining fixed to the scene
Solution Approach 1:
The system performs preliminary action by capturing video frames before final processing, then uses predictive algorithms to pre-determine the motion graphic's position in subsequent frames based on optical flow analysis of tracking points, ensuring the graphic remains fixed to the scene rather than moving with camera frames
Solution Approach 2:
The system implements feedback by continuously analyzing optical flow between video frames and using this information to adjust the motion graphic's position, creating a closed-loop system that maintains graphic stability relative to the scene despite camera movement
2Ease of operation
If virtual decals are displayed in the camera viewfinder, then the user can frame the video with the graphic in the desired location, but the system complexity increases
Solution Approach 1:
The mobile device's existing camera and display components are made multi-functional by overlaying virtual decals on the camera viewfinder, allowing the same hardware to serve both as a simple camera and as a video editing tool without requiring separate dedicated equipment
3Manufacturing precision
If post-processing is conducted on highly capable personal computers, then the video processing quality is high, but the user cannot edit video directly on the mobile device
Solution Approach 1:
The system merges the video capture and post-processing functions into a single mobile device by implementing optical flow analysis and motion graphic embedding algorithms that run locally on the device's processor, eliminating the need for separate powerful computers while maintaining processing quality
Data Source
AI summary
The virtual decals for precision alignment of motion graphics of the present invention provides a method by which a person using a mobile video capturing device may apply a special effect or motion graphic to the video being captured using a virtual decal present on the screen of the mobile device, providing a reference to the user allowing the user to compensate for camera movement and properly frame the video to which the motion graphic will be applied using post-processing. The present invention further provides a method for measuring the optic flow of a given video scene and applying that data in a predictive manner so as to stabilize a motion graphic against the scene. Post processing places such a motion graphic within the processed video in such a way that it appears to be part of the original scene.