Camera Control Apparatus Zoom-Adaptive Centering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional camera control systems often fail to accurately center the camera on a designated position in the image display area, especially at high zoom ratios, leading to user dissatisfaction due to anomalous camera behavior.
Innovation Solution
A photographing control apparatus comprising a deriving unit to calculate parameters based on the lens barrel unit's movement and zooming ratio, and a determining unit to assess whether to enable camera control based on user-designated positions, using a threshold to prevent excessive displacement and provide accurate centering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the camera is controlled to center the designated position in the image display area, then the user expects accurate centering, but at high zoom ratios the lens barrel unit's large movement quantity causes the camera to excessively exceed the center position
Solution Approach 1:
The patent changes the control parameter from a fixed movement quantity to a variable movement quantity that depends on the zooming ratio. At high zoom ratios, the movement quantity is reduced to prevent excessive displacement, while at low zoom ratios, the full movement quantity is used for accurate centering. This resolves the contradiction by adapting the control parameter to the operating conditions.
Solution Approach 2:
The patent makes the camera control system dynamic by adjusting the movement quantity of the lens barrel unit based on the current zooming ratio. The system transitions from a static control approach to a dynamic one where the control behavior changes according to the zooming state, allowing accurate centering at all zoom levels without causing excessive displacement at high zoom ratios.
2Device complexity
If the lens barrel unit is driven with a fixed quantity of movement per pulse, then the motor control is simple, but the centering accuracy deteriorates at high zoom ratios due to large movement quantity
Solution Approach 1:
The patent introduces a variable parameter (movement quantity) that changes based on the zooming ratio. Instead of using a fixed movement quantity for all zoom levels, the system adjusts the movement quantity parameter dynamically, reducing it at high zoom ratios to maintain centering accuracy while keeping the motor control mechanism relatively simple.
Solution Approach 2:
The patent performs preliminary calculation of the appropriate movement quantity based on the zooming ratio before executing the camera control. By pre-determining the correct movement quantity according to the current zooming state, the system avoids excessive displacement and achieves accurate centering without complex real-time adjustments during execution.
Data Source
AI summary
A photographing control apparatus for controlling a shooting direction of a camera determines as to whether the shooting direction of the camera is controlled or not according to a designation of a position in a display area in which an image captured by the camera is displayed, based on a parameter derived by the camera.