Shared-Camera Dual-System for Depth Measurement Accuracy
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Solution Overview
Problem
Stereo matching in binocular vision systems often results in unmatched points due to limited common visual field, leading to reduced depth image information and accuracy, especially at short and long distances.
Innovation Solution
The use of a dual-camera device configuration with a shared camera, where a third camera is added to expand the common visual field, allowing for the acquisition of depth images from more viewing angles and improving both short-distance and long-distance depth measurement accuracy by fusing depth images from multiple dual-camera devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a binocular vision system uses a standard dual-camera configuration, then the system structure is simple, but the common visual field is limited causing unmatched points and reduced depth measurement accuracy
Solution Approach 1:
The patent divides the depth measurement task into multiple segments by using multiple dual-camera devices (first dual-camera device and second dual-camera device) with different baseline configurations. Each device handles specific spatial regions or distance ranges, and their results are fused to achieve comprehensive high-precision depth measurement across the entire scene.
Solution Approach 2:
The patent transitions from a single dual-camera configuration to multiple dual-camera devices with different spatial arrangements. By adding the third camera and creating multiple baseline configurations (first baseline between first and second cameras, second baseline between first and third cameras), the system expands the common visual field in multiple dimensions, eliminating unmatched points and improving depth measurement accuracy.
2Measurement precision
If multiple dual-camera devices with different baselines are used to expand the common visual field, then depth measurement accuracy improves, but the device complexity increases
Solution Approach 1:
The first camera serves multiple functions by participating in both the first dual-camera device (with second camera) and the second dual-camera device (with third camera). This shared camera configuration allows the system to achieve multiple baseline measurements without proportionally increasing the total number of cameras, thereby improving depth measurement accuracy while controlling device complexity.
Solution Approach 2:
The patent merges the functions of multiple dual-camera devices by fusing their depth images. The first depth image from the first dual-camera device and the second depth image from the second dual-camera device are combined to produce a fused depth image, which integrates the advantages of different baseline configurations and achieves comprehensive high-precision depth measurement.
Data Source
AI summary
An image acquisition device and an image processing method and system are provided. The image acquisition device includes a first dual-camera device and a second dual-camera device. The first dual-camera device includes a first camera and a third camera. The second dual-camera device includes the first camera and a second camera. The image acquisition device can acquire depth information of richer information content from more viewing angles and reduce the number of points that cannot be matched.