Video Stabilization Assessment via Trajectory Length

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Solution Overview

Problem

Existing technologies lack an objective method to assess and compare the stabilization performance of different video stabilization techniques, making it difficult to evaluate and improve video stability effectively.

Innovation Solution

A system that assesses video stabilization by obtaining video and stabilization information, characterizing stabilization trajectories, and evaluating stabilization based on trajectory length and other factors, allowing for adjustments and comparisons of stabilization techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If video stabilization is applied to reduce motion jerkiness, then video stability is improved, but objective assessment of stabilization performance is lacking

Engineering Contradiction:

Improvevideo stabilityVSAvoidstabilization performance assessment

Core Design Contradiction:

Stability of the object's compositionVSMeasurement precision

Solution Approach 1:

The system applies feedback by calculating a stabilization score from trajectory characteristics and using this score to objectively assess and compare different stabilization techniques. The assessment feedback enables iterative improvement and selection of optimal stabilization parameters.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent replaces subjective human evaluation of video stabilization with an automated computational system that uses trajectory analysis and mathematical scoring. This substitutes mechanical/manual assessment with an electronic computing system that processes stabilization trajectories objectively.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If multiple stabilization techniques are compared, then better stabilization can be selected, but no objective comparison method exists

Engineering Contradiction:

Improvestabilization technique comparisonVSAvoidassessment system complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The stabilization score calculation system serves multiple functions: it assesses different stabilization techniques, compares their performance, selects optimal parameters, and guides further stabilization application. This universal assessment mechanism handles various stabilization approaches through a single standardized scoring framework.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Measurement precision

If stabilization trajectory length is used to assess stabilization, then objective measurement is achieved, but complexity of assessment increases

Engineering Contradiction:

Improvestabilization measurement objectivityVSAvoidassessment process complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The system transforms the complex problem of video stabilization assessment into a simplified parameter-based evaluation by extracting key trajectory characteristics (length, curvature, velocity) and computing a composite stabilization score. This parameter transformation reduces assessment complexity while maintaining objectivity.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12289522B2Systems and methods for assessing stabilization of videos

Publication Date: 2025.04.29 GOPRO INC

AI summary

A video may be captured by an image capture device in motion. A stabilization trajectory for the video may reflect stabilization rotational positions to compensate for at least some of the motion of the image capture device. The stabilization trajectory may have a stabilization trajectory length. The stabilization of the visual content may be assessed based on the stabilization trajectory length.