PTZ Camera Tracking and Crop GUI for Subject Retention
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Solution Overview
Problem
Existing PTZ cameras face challenges in maintaining subject tracking when using a zoomed-in angle of view, as subject loss occurs due to movement, necessitating complex user operations for setting crop frames to avoid loss, which complicates automatic tracking.
Innovation Solution
A control apparatus that integrates a tracking function and crop function, allowing simultaneous setting of a target position and crop region through a graphical user interface (GUI) on a display unit, reducing the complexity of user operations by associating crop frame and target position settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If automatic tracking is performed with a zoomed-in angle of view, then the subject occupies a large proportion of the image capturing angle of view, but subject loss occurs when the subject moves
Solution Approach 1:
The image capturing system is divided into two distinct angle of view settings: a first angle of view for reliable subject tracking and a second (zoomed-in) angle of view for detailed capture. The system segments the tracking function by designating different target positions for each angle of view, allowing the subject to be reliably tracked in the first angle of view while enabling detailed capture in the second angle of view when needed.
2Reliability
If a wider angle of view is used to suppress subject loss, then tracking reliability improves, but the desired zoomed-in angle of view cannot be achieved
Solution Approach 1:
The system dynamically switches between two angle of view settings based on tracking needs. The control apparatus designates different target positions corresponding to each angle of view, allowing the system to adaptively select the appropriate viewing mode. This dynamic adjustment enables the system to maintain reliable tracking when using the wider first angle of view while still providing the option to switch to the zoomed-in second angle of view for detailed subject capture.
3Measurement precision
If crop function is used to achieve zoomed-in angle of view, then detailed subject capture is enabled, but setting complexity increases for users
Solution Approach 1:
The system merges the angle of view adjustment and target position designation functions into a unified control mechanism. When switching between the first and second angle of view settings, the control apparatus automatically designates appropriate target positions for each mode. This integration eliminates the need for users to separately configure crop frames and target positions, reducing setting complexity while maintaining the ability to achieve detailed subject capture through the zoomed-in second angle of view.
Data Source
AI summary
The image capturing device has a tracking function for tracking and capturing a video of a subject, and a crop function for generating a crop video. The control apparatus sets a target position in the captured video within which the subject is to stay in the tracking function; sets a crop region in the captured video that is to be cut out by the crop function; and causes a display unit to display a GUI for receiving at least one of a setting of the target position and a setting of the crop region. In the displaying, a first GUI component and a second GUI component that respectively indicate the target position and the crop region are displayed.