Robot Monocular 3D Imaging via Dynamic Parallax
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Solution Overview
Problem
Conventional 3D picture shooting devices require two fixed-focus cameras with a fixed inter-axis distance, which increases costs and cannot meet the requirements of photographers needing flexible focal lengths, while existing solutions are inefficient and costly.
Innovation Solution
A robot-based 3D picture shooting method that calculates an inter-axis distance based on the distance between the photographed object and the photographing device, allowing the robot to move to capture two pictures, which are then synthesized to create a 3D image, using a monocular camera and adjusting the movement direction to achieve the desired focal length flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two fixed-focus cameras are used for 3D picture shooting, then the 3D visual effect is achieved, but the cost is greatly increased
Solution Approach 1:
The patent segments the 3D shooting function into two separate shooting processes using a single camera: first shooting at the original position and second shooting after robot movement. This replaces the need for two simultaneous cameras while achieving the same parallax effect through temporal separation.
Solution Approach 2:
The patent introduces dynamic movement of the robot carrying the camera between two positions (original position and moved position by inter-axis distance). This dynamic approach replaces the static dual-camera setup, allowing a single camera to capture both perspectives needed for 3D effect.
2Reliability
If two sets of cameras with fixed inter-axis distance are used, then the 3D picture shooting is enabled, but the focal length flexibility is lost
Solution Approach 1:
The patent makes the inter-axis distance dynamic by moving the robot between shots, allowing adjustment of the baseline distance according to different shooting requirements. This replaces the fixed mechanical separation of dual cameras with a programmable robotic movement system.
Solution Approach 2:
The patent changes the parameters of the shooting system by allowing variable inter-axis distance through robot movement and variable focal length through camera lens adjustment. These parameters can be dynamically modified to meet different photography requirements while maintaining 3D effect.
3Quantity of substance
If a single camera is used with robot movement, then the cost is reduced, but the shooting efficiency may be affected
Solution Approach 1:
The patent performs preliminary calculation of the inter-axis distance based on the photographed object's distance before execution. This pre-planning allows the robot to move efficiently to the correct position without trial-and-error, maintaining shooting efficiency while using a single camera.
Solution Approach 2:
The patent uses feedback from the distance measurement of the photographed object to automatically calculate and adjust the robot's movement distance. This closed-loop control ensures accurate positioning for 3D shooting while optimizing the shooting process efficiency.
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
This method allows for flexible focal lengths and inter-axis distances, reducing costs by using a single camera while maintaining high-quality 3D image capture, meeting the requirements of photographers with higher standards.
Implementation Method 1
When two eyes look at the same object, the parallax is formed due to the slightly different angles at which the two eyes located with respect to the object. The brain will automatically synthesize two pictures of the two eyes to form a deep vision
Data Source
AI summary
The present disclosure provides a robot-based 3D picture shooting method and system, and a robot using the same. The method includes: obtaining a distance between a photographed object and the photographing device of the robot based on a received shooting instruction; calculating an inter-axis distance based on the distance; obtaining the first picture after moving the robot for half of the inter-axis distance along the movement direction; obtaining the second picture after moving the robot for entire of the inter-axis distance from a current position along an opposite direction of the movement direction; and synthesizing the first picture and the second picture to obtain a 3D picture of the photographed object. In the process, the robot moves the photographing device according to the calculated inter-axis distance, and obtains two pictures of the left and right of the photographed object, which is not necessary to use a binocular camera.