Virtual Camera Image Acquisition for 3D Models
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Solution Overview
Problem
Current methods for acquiring images from multiple cameras using three-dimensional vision technology are cumbersome, time-consuming, and costly, requiring physical camera selection, on-site hardware setup, and synchronization, which complicates operation accuracy and efficiency.
Innovation Solution
A virtual-camera-based image acquisition method where a three-dimensional model of an object is imported into a virtual photographing scene, with virtual cameras positioned and attuned to capture images from various angles, eliminating the need for physical camera setup and synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If physical cameras are selected and built on site to form a hardware camera acquisition system, then image acquisition from multiple viewing angles can be achieved, but the process becomes cumbersome and time-consuming
Solution Approach 1:
The patent creates virtual cameras that replicate the functionality of physical cameras in a three-dimensional virtual photographing scene. These virtual cameras can be positioned and configured without requiring actual physical camera hardware, thereby simplifying the setup process and improving efficiency while maintaining the ability to capture images from multiple viewing angles.
Solution Approach 2:
The patent replaces the mechanical physical camera system with a virtual camera system based on three-dimensional vision technology. Instead of using actual cameras that require physical setup, adjustment, and synchronization, the system uses virtual cameras positioned in a three-dimensional virtual space, eliminating the mechanical complexity of hardware installation while achieving the same image acquisition function.
2Reliability
If multiple physical cameras are set up and time synchronization is performed, then synchronized image acquisition from multiple viewing angles is achieved, but operation accuracy is difficult to ensure and time is consumed
Solution Approach 1:
The patent uses virtual cameras that inherently provide synchronized operation without requiring time synchronization procedures. The virtual cameras operate within a unified three-dimensional virtual coordinate system, ensuring consistent and accurate positioning and timing across all viewing angles without the need for complex synchronization operations.
Solution Approach 2:
The patent pre-configures the virtual cameras in the three-dimensional virtual photographing scene before image acquisition. The virtual cameras are positioned and oriented in advance within the virtual coordinate system, so that when images are captured, they are automatically synchronized and accurately positioned without requiring real-time adjustment or synchronization operations.
3Ease of manufacture
If physical camera hardware is used for image acquisition, then real-world imaging capability is achieved, but hardware costs and effort are significantly increased
Solution Approach 1:
The patent creates virtual cameras that replicate the imaging function of physical cameras without requiring actual hardware. The virtual cameras are software-based entities positioned in a three-dimensional virtual space, eliminating the need for physical camera devices, mounting structures, and associated hardware, thereby significantly reducing both cost and complexity.
Solution Approach 2:
The patent replaces the entire physical camera hardware system with a virtual camera system. Instead of using actual cameras that require purchase, installation, and maintenance, the system uses virtual cameras that can be instantiated through software, eliminating hardware resource requirements while maintaining the ability to capture images from multiple viewing angles.
Data Source
AI summary
An image acquisition method includes importing a three-dimensional model of an object into a three-dimensional virtual photographing scene having a virtual world coordinate system, determining model position information and model attitude information of the three-dimensional model in the virtual world coordinate system, determining, according to a layout pattern of a plurality of virtual cameras in the three-dimensional virtual photographing scene, camera position information and camera attitude information of each of the plurality of virtual cameras in the virtual world coordinate system, and acquiring, for each of the plurality of virtual cameras, an image of the object from a viewing angle of the virtual camera according to the model position information, the model attitude information, the camera position information, and the camera attitude information.