3D Model Guidance via Provisional Reconstruction
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Solution Overview
Problem
Conventional methods for generating three-dimensional models using RGB images struggle to determine the position and posture of a camera with respect to an object, making it difficult to identify unacquired regions and assess the completion rate of data acquisition, especially for large objects, without the use of depth sensors.
Innovation Solution
An information processing apparatus that acquires object information, generates a provisional three-dimensional model, calculates imaging range information, and provides imaging assisting information to help photographers collect images efficiently by determining the position and posture of the camera and view angle range, allowing for panoramic presentation of data acquisition completion and identification of unacquired regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If RGB images are used for three-dimensional reconstruction, then convenience and model quality are improved, but the ability to determine camera position and identify unacquired regions deteriorates
Solution Approach 1:
The patent transforms two-dimensional RGB image data into three-dimensional spatial information by constructing a provisional 3D model and calculating camera position-posture and view angle ranges. This dimensional transformation enables the system to determine camera positioning and identify unacquired regions without requiring specialized depth sensors, thus resolving the contradiction between using simple RGB images and obtaining 3D positioning information.
2Measurement precision
If depth sensors are used to acquire three-dimensional information, then camera positioning and unacquired region identification are improved, but device complexity increases
Solution Approach 1:
The patent creates a provisional three-dimensional model as a virtual copy of the object based on RGB images. This virtual model serves as a reference to calculate camera position-posture and view angle ranges, enabling 3D positioning functionality without physical depth sensors. The copying approach eliminates the need for complex sensing equipment while maintaining measurement precision.
3Productivity
If data acquisition is performed without real-time feedback, then device complexity is reduced, but productivity and completion rate assessment deteriorate
Solution Approach 1:
The patent implements a feedback mechanism where the system calculates the view angle range and compares it with the actual captured region to determine unacquired regions. This feedback loop provides real-time guidance for photographers to capture missing areas, improving productivity without requiring complex additional hardware. The feedback is achieved through computational analysis of the provisional 3D model and camera parameters.
Data Source
AI summary
An information processing apparatus is configured to provide imaging assisting information for an object to a user of an image pickup apparatus to collect images for generating a three-dimensional model of the object. The information processing apparatus includes a memory storing instructions, and a processor configured to execute the instructions to acquire object information including an image of the object, acquire a provisional three-dimensional model including an uncaptured part of the object upon inputting of the object information, calculate imaging range information including position-posture of the image pickup apparatus with respect to the object for the acquired image of the object and including a view angle range with respect to the object for the image of the object, and generate the imaging assisting information for the object based on the imaging range information.