Multi-Camera 3D Imaging With Depth-Layer Inpainting
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Solution Overview
Problem
Existing 2D cameras struggle to accurately represent 3D objects in space and generate realistic 3D images due to limited field of view, and current methods for converting 2D images to 3D images suffer from artifacts at the boundary between foreground and background.
Innovation Solution
A method and electronic device using multiple cameras with different fields of view to generate a 3D image by obtaining depth information, identifying foreground and background layers, and inpainting the background layers using pixel information from both cameras to reduce artifacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single 2D camera is used to capture images, then the device complexity is low, but the ability to accurately represent 3D objects in space is limited due to restricted field of view
Solution Approach 1:
The patent combines images from multiple cameras with different fields of view into a single 3D image. The first camera captures a first image and the second camera captures a second image, which are then merged through inpainting operations to create a comprehensive 3D representation that overcomes the limited FOV of individual cameras.
Solution Approach 2:
The patent transitions from 2D images captured by individual cameras to a 3D image by incorporating depth information and combining multiple viewpoints. This dimensional transformation allows accurate representation of 3D objects by synthesizing spatial information from multiple 2D projections.
2Manufacturing precision
If 2D images are converted to 3D images using existing methods, then the process is simple, but artifacts occur at the boundary between foreground and background reducing image quality
Solution Approach 1:
The patent segments the image processing into distinct layers: foreground layer and background layer. By separating these layers and applying different inpainting operations to each, the method reduces artifacts at boundaries while maintaining processing feasibility through systematic division of the complex task.
Solution Approach 2:
The patent introduces depth information as an intermediary element that mediates between the 2D input images and the 3D output image. This depth map serves as a guide for the inpainting process, enabling accurate reconstruction of 3D structures while minimizing artifacts at foreground-background boundaries.
3Loss of information
If multiple cameras with different fields of view are used to generate 3D images, then more pixel information is available for inpainting, but the device complexity increases
Solution Approach 1:
The patent makes the multi-camera system universal by designing it to capture complementary fields of view where one camera's FOV includes the other's region. This universal configuration ensures that all pixel information from both cameras can be utilized in the inpainting process, maximizing information utilization while maintaining a practical system architecture.
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 approach allows for the generation of a realistic 3D image with reduced artifacts by utilizing more pixel information and accurately representing 3D objects, enhancing the quality of 3D image generation.
Implementation Method 1
obtaining depth information of a first pixel, based on a parallax between the first pixel included in the first image and a second pixel included in the second image and corresponding to the first pixel
Data Source
AI summary
A method, performed by an electronic device, of generating a three-dimensional (3D) image, includes: obtaining a first image through a first camera of the electronic device and obtaining a second image through a second camera of the electronic device; obtaining depth information of a pixel included in the first image; identifying, based on the depth information, a first layer image and a second layer image from the first image; inpainting, based on the first image and the second image, at least a part of the first layer image; and generating, based on the second layer image and the inpainted first layer image, the 3D image including a plurality of layers.