Hand-Tracked Line Drawing with Coordinate Transformation Thresholds
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Solution Overview
Problem
Conventional line drawing methods based on hand motion trajectories are unstable due to hand inertia and habitual actions, resulting in inaccurate and unstable lines.
Innovation Solution
A line drawing method that involves acquiring frame images, determining hand position coordinates, transforming positional differences, and drawing lines based on predefined transformation value coefficients and thresholds to stabilize the line drawing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If line drawing is based on hand motion trajectory in current frame image, then the drawing process is simple, but the drawn line becomes unstable due to hand inertia
Solution Approach 1:
The system performs preliminary actions by acquiring multiple frame images in advance and determining hand position coordinates for each frame before the actual drawing operation. This allows the system to pre-process motion data and apply transformations to compensate for hand instability, ensuring stable line drawing while maintaining operational simplicity.
2Speed
If hand position is directly mapped to screen coordinates, then the response is fast, but the line accuracy deteriorates due to hand instability
Solution Approach 1:
The system introduces an intermediary processing mechanism that transforms the direct mapping between hand position and screen coordinates. By applying transformation values derived from multiple frame comparisons and using preconfigured coefficients, the system mediates between raw hand motion data and final drawing output, improving line accuracy while maintaining response speed.
3Reliability
If transformation processing with multiple coefficients is applied, then line stability is improved, but the system complexity increases
Solution Approach 1:
The system applies parameter changes by using preconfigured transformation value coefficients and thresholds to adjust the relationship between hand position coordinates and screen coordinates. These parameter transformations stabilize the line drawing process by compensating for hand motion variations, achieving improved line stability without requiring complex additional hardware or algorithms.
Data Source
AI summary
The embodiments of the present application disclose a line drawing method, a line drawing apparatus, a device, and a storage medium. Under a condition that at least one of an abscissa transformation value and an ordinate transformation value is not less than a first set threshold, a corresponding line is drawn according to an association relationship among the abscissa transformation value, the ordinate transformation value, a preconfigured transformation value coefficient, and a transformation value threshold.