Image Stabilization Using Reference Frame Updates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional image stabilization methods for hand-held devices suffer from errors in calculation, leading to incomplete removal of shaking in image sequences, with real motion path based processing converting images only once and relative motion path based processing experiencing accumulative errors.
Innovation Solution
An image processing method that determines a target image as a reference image based on fluctuations meeting predetermined requirements, using inter frame estimation to reduce the negative influence of large fluctuations and update the reference image to improve image stabilization, and performs vertical correction and smoothing to align images with the user's field of vision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If real motion path based processing is used to calculate pose and convert to vertical state, then image stabilization is achieved, but shaking still exists due to calculation errors
Solution Approach 1:
The patent uses gyroscope data to continuously monitor and detect device orientation changes, feeding this information back to adjust image stabilization parameters in real-time, improving both reliability and precision of stabilization
Solution Approach 2:
The patent introduces an intermediary processing layer that combines gyroscope data with image frame analysis, using this intermediate information to correct pose calculation errors and enhance stabilization accuracy
2Measurement precision
If relative motion path based processing is used to adjust pose of each current image, then accumulative error is reduced, but image stabilization effect is still not good
Solution Approach 1:
The patent merges real motion path based processing and relative motion path based processing into a unified approach, combining the strengths of both methods to achieve better image stabilization while reducing accumulative errors
Solution Approach 2:
The patent creates a composite processing approach that integrates multiple stabilization techniques (gyroscope-based pose calculation, inter-frame motion estimation, and error correction mechanisms) to form a robust image stabilization system
Data Source
Figure 1
Figure 2A~2D
Figure 3(a)~3(d)
AI summary
Image processing method and device are disclosed. The image processing method is inclusive of a step of obtaining a target image; a step of performing motion estimation on the target image so as to attain motion paths; a step of determining, on the basis of the motion paths, whether there exists a fluctuation meeting a predetermined requirement in the target image; and a step of taking, if there exists a fluctuation meeting the predetermined requirement in the target image, the target image as a reference image. The reference image is utilized to carry out inter frame motion estimation with respect to the respective images acquired.