Virtual Camera Model for 3D AR Image Capture Guidance
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Solution Overview
Problem
Existing technologies face challenges in accurately overlaying a real camera's view on an augmented reality (AR) object, especially when the camera shapes differ, and in supporting image capturing in three-dimensional spaces.
Innovation Solution
An electronic device with a generating unit to create virtual objects representing current and desired image capturing ranges, and a display control unit to overlay these objects on a live view screen, aiding users in determining appropriate angles of view and capturing images in 3D spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a two-dimensional object is displayed on the LV screen to guide moving speed, then movement of camera on the two-dimensional plane can be supported, but supporting image capturing in three-dimensional space becomes difficult
Solution Approach 1:
The patent transitions from displaying a two-dimensional guidance object to a three-dimensional virtual camera model that exists in spatial depth. The virtual camera model includes depth information and spatial orientation, allowing it to represent the real camera's position and angle of view in three-dimensional space. This dimensional expansion enables the guidance system to support panoramic image capturing and other three-dimensional imaging operations effectively.
2Ease of manufacture
If the shape of the camera in the AR object differs from the real camera, then the AR object can be generated, but accurate matching of camera position and orientation becomes difficult
Solution Approach 1:
The patent creates a virtual camera model that copies the essential geometric and optical parameters of the real camera, including lens focal length, sensor dimensions, and optical center position. By replicating these critical parameters, the virtual camera model accurately represents the real camera's imaging characteristics and spatial orientation, enabling precise overlay and guidance even though the visual shape may differ for display purposes.
Data Source
AI summary
An electronic device, for supporting image capturing by an imaging apparatus, includes at least one processor and/or at least one circuit which function as: a generating unit configured to generate a first object in a virtual space corresponding to a current image capturing range of the imaging apparatus, and a second object in a virtual space corresponding to an image capturing range in a case where the imaging apparatus has a predetermined position and a predetermined orientation; and a display control unit configured to display the first object and the second object.