Handheld Object Tracking Threshold Control for Panning Stability
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Solution Overview
Problem
Conventional selfie technologies result in shaky image capturing data due to excessive panning of tracking docks, limiting the quality of dynamic video streams.
Innovation Solution
An automatic object tracking system comprising a handheld mobile device and a tracking dock, where the mobile device captures image data and issues panning commands to adjust the image capturing direction based on defined thresholds, ensuring stable and smooth panning by recognizing feature objects and adjusting the sampling frame accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the tracking dock continuously pans to track the feature object, then the object tracking accuracy is improved, but the image capturing data becomes shaky and unstable
Solution Approach 1:
The patent applies partial action by adjusting the image capturing direction only when the feature object moves beyond a predetermined threshold distance from the center of the image capturing data. This avoids continuous panning adjustments for every minor movement, thereby reducing image shakiness while still maintaining adequate tracking accuracy when needed.
2Speed
If the image capturing direction is adjusted frequently to follow the feature object, then the tracking responsiveness is improved, but the panning shot becomes shaky and less smooth
Solution Approach 1:
The system performs partial adjustments by only responding to feature object movements that exceed the threshold distance. This selective response mechanism maintains tracking responsiveness for significant movements while filtering out minor fluctuations that would cause unnecessary panning adjustments and image shakiness.
3Measurement precision
If the tracking dock adjusts the image capturing direction for every feature object movement, then the tracking precision is improved, but the field-of-view experiences excessive waving
Solution Approach 1:
The patent implements partial action by establishing a threshold distance that must be exceeded before triggering an image capturing direction adjustment. This approach maintains tracking precision for meaningful movements while preventing field-of-view waving caused by responding to every minor feature object movement.
Data Source
AI summary
An automatic object tracking system is configured to perform an automatic object tracking method. A horizontal coordinate axis and a vertical coordinate axis are defined in image capturing data captured by a handheld device. When a feature object is recognized, a sampling frame is set to surround the feature object, and a reference point is set within the sampling frame. A horizontal distance and a vertical distance from the reference point to a target coordinate are calculated. When the horizontal distance or the vertical distance is larger than a horizontal threshold, a turning command is issued to move the reference point towards the target coordinate horizontally or vertically by at least one horizontal unit or by at least one vertical unit. In case that plural feature objects are recognized, the handheld mobile device chooses a proper one of the plural feature objects timely to perform the panning shot.