Imaging System Zoom Lens Positioning via Wide-Angle Reference
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Solution Overview
Problem
Existing imaging systems with wide-angle and zoom-lens cameras face challenges in setting the imaging direction of the zoom-lens camera to a specified position on an image captured by the wide-angle lens camera, as they lack necessary depth information, making it difficult to change the imaging direction to a position intended by the user.
Innovation Solution
The system prioritizes one piece of position information in the object space as an imaging position and uses a combination of pan, tilt, and zoom controls, along with distance measurement techniques like autofocus or light field analysis, to adjust the imaging direction of the zoom-lens camera based on specified position information or default tilt positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If distance measurement techniques are added to provide depth information, then the ability to set imaging direction to specified positions is improved, but device complexity increases
Solution Approach 1:
The system divides the imaging function into two separate cameras: a wide-angle lens camera for capturing overall images and a zoom-lens camera for detailed imaging. This segmentation allows each camera to specialize in its function while the control system integrates their data to provide precise positioning without requiring complex depth measurement hardware in each camera.
Solution Approach 2:
The control system acts as an intermediary that processes images from the wide-angle camera, determines specified positions, and translates these into control signals for the zoom-lens camera. This intermediary processing layer enables precise imaging direction control without requiring direct complex hardware integration between cameras.
2Adaptability or versatility
If multiple cameras with different functions are used, then imaging versatility is improved, but synchronization and coordination between cameras becomes more difficult
Solution Approach 1:
The system merges the functional capabilities of wide-angle and zoom-lens cameras into a coordinated surveillance system. The control system combines images from both cameras and synchronizes their operation, allowing the zoom-lens camera to target positions identified in the wide-angle camera's field of view, thereby achieving versatile imaging with manageable coordination through centralized control.
3Area of stationary object
If the zoom-lens camera is positioned at a different location from the wide-angle camera, then coverage area is improved, but accuracy in setting imaging direction to specified positions deteriorates due to unknown depth information
Solution Approach 1:
The control system uses feedback from the wide-angle camera's image data to continuously adjust and determine the specified positions. By processing the wide-angle image to identify target positions and then calculating the corresponding control signals for the zoom-lens camera, the system maintains positioning accuracy despite the cameras being at different locations, as the control decisions are based on real-time feedback from the wide-angle view.
Data Source
Figure 1A~1B
Figure 2
Figure 3~5B
AI summary
The present invention provides an imaging system which allows an imaging direction to be changed to a position intended by the user. An imaging system according to the present invention includes an image acquiring unit adapted to acquire an image captured by the first imaging apparatus; a position determining unit adapted to determine one of a plurality of pieces of position information in an object space of the image as an imaging position in priority order; and a controlling unit adapted to change a viewing point of a second imaging apparatus based on the imaging position.