3D Video Shooting Control System for Dynamic Baseline Adjustment
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Solution Overview
Problem
Conventional 3D video shooting systems struggle to capture stereoscopic effects for both close-range and distant objects, relying on manual adjustments and operator experience, without a theoretical framework for setting optimal camera parameters like base-line length and angle of view, especially in challenging scenarios like sports, where precise control is difficult.
Innovation Solution
A 3D video shooting control system that calculates and adjusts the base-line length and convergence angle of cameras based on theoretical equations derived from the relationship between shooting and viewing conditions, using a parallax calculation unit, base-line length determination unit, and convergence angle control unit to ensure a suitable stereoscopic effect and safe parallax range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the interval between 3D shooting cameras is fixed at 65 mm, then the stereoscopic effect for close-range objects is achieved, but the stereoscopic effect for distant objects cannot be obtained
Solution Approach 1:
The patent applies dynamics by making the base-line length adjustable rather than fixed. The control unit dynamically changes the interval between the left and right cameras based on the shooting distance and object characteristics, enabling optimal stereoscopic effects for both close-range and distant objects.
Solution Approach 2:
The patent changes the base-line length parameter according to shooting conditions. By calculating the appropriate base-line length based on object distance and other parameters, the system adapts the camera interval to achieve consistent stereoscopic quality across different shooting scenarios.
2Manufacturing precision
If manual adjustment of camera interval and angle of view is used, then operator experience can guide settings, but consistent and optimal 3D effects across different shooting conditions cannot be guaranteed
Solution Approach 1:
The system performs self-service by automatically calculating and adjusting the base-line length and convergence angle based on input parameters such as shooting distance and object characteristics. The control unit executes the calculations and adjusts camera positions without requiring operator intervention, ensuring consistent optimal settings.
Solution Approach 2:
The system uses feedback by calculating the base-line length and convergence angle based on shooting conditions, then adjusting camera positions according to these calculated values. This closed-loop approach ensures that the stereoscopic effects meet the desired quality standards across different shooting scenarios.
3Adaptability or versatility
If zoom or telephoto lens is used for distant objects, then the shooting distance is extended, but the stereoscopic effect is lost with fixed 65 mm camera interval
Solution Approach 1:
The system dynamically adjusts the base-line length in response to changes in shooting distance. When using zoom or telephoto lenses for distant objects, the control unit calculates and sets an appropriate larger base-line length to maintain stereoscopic effects, rather than keeping the interval fixed at 65 mm.
Solution Approach 2:
The patent changes the base-line length parameter according to the shooting distance and lens characteristics. By calculating the appropriate base-line length based on object distance and other parameters, the system adapts to maintain stereoscopic quality whether using standard lenses for close objects or zoom/telephoto lenses for distant objects.
4Ease of operation
If no theoretical framework is provided for setting camera parameters, then operator flexibility is maintained, but systematic and reliable 3D shooting control is achieved
Solution Approach 1:
The system performs preliminary action by pre-calculating the base-line length and convergence angle based on shooting conditions before actual shooting. The control unit uses established formulas to determine optimal camera positions in advance, ensuring reliable and consistent stereoscopic effects while maintaining ease of operation through automated parameter determination.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables the capture of high-quality 3D videos by automatically determining and adjusting camera parameters, ensuring a suitable stereoscopic effect and maintaining safety, even in complex shooting conditions, by comprehensively considering shooting and viewing conditions.
Implementation Method 1
a parallax calculation unit for calculating a parallax of an object from a video obtained by a pair of imaging devices
Data Source
AI summary
The present invention provides a 3D video shooting control system which controls the position and direction of a pair of imaging devices in order to obtain a suitable 3D effect or maintain the safety, taking the shooting condition and the viewing condition into consideration comprehensively. A base-line length and a convergence angle of a pair of imaging devices are controlled based on an integration model in which a 3D shooting and broadcasting model and a 3D object model are integrated. A base-line length determination unit 6d-1 determines a base-line length based on the relationship expressed by an integration model equation 1 and a camera control unit 6e moves the pair of imaging devices to change the position thereof so that the pair of imaging devices has the determined base-line length.