Multi-Camera Frame-Rate Control for Moving Object Distance Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image acquisition devices do not effectively process images acquired at high frame rates, which limits their performance and efficiency.
Innovation Solution
The development of an image acquisition device that utilizes multiple image acquisition units, with one unit operating at a high frame rate for moving object detection and the others for distance detection, allowing for independent control of image-acquisition timing and frame rate conversion to match the requirements of each function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single image acquisition unit is used for both distance detection and moving object detection, then device complexity is reduced, but processing performance at high frame rates deteriorates
Solution Approach 1:
The patent divides the image acquisition system into multiple independent image acquisition units, each dedicated to specific detection tasks. One unit captures images for distance detection while another unit captures images for moving object detection at high frame rates. This segmentation allows each unit to be optimized for its specific function, resolving the contradiction between device simplicity and high-frame-rate processing capability.
2Speed
If one image acquisition unit operates at high frame rate for moving object detection, then moving object detection speed is improved, but cost and device complexity increase
Solution Approach 1:
The system segments detection functions by allocating specific image acquisition units to specific tasks. One unit is dedicated to moving object detection and operates at high frame rates, while another unit handles distance detection. This functional segmentation enables high-speed moving object detection without requiring all image acquisition units to operate at maximum speed, thereby controlling overall system complexity and cost.
Solution Approach 2:
The patent applies local quality by configuring different image acquisition units with different operational characteristics suited to their specific functions. The unit dedicated to moving object detection is configured for high frame rate operation, while the unit for distance detection can operate at lower frame rates. This localized optimization achieves high detection speed where needed without unnecessarily increasing overall system complexity.
3Measurement precision
If multiple image acquisition units are used with independent timing control, then detection precision for different functions is improved, but device complexity increases
Solution Approach 1:
The control system is segmented to independently manage each image acquisition unit's timing and operation. Each unit can be controlled according to its specific detection requirements, enabling precise optimization for both distance detection and moving object detection functions. This segmented control approach achieves high detection precision for different functions while managing complexity through modular control architecture.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An image acquisition device comprises: a plurality of image acquisition units, at least one image acquisition unit of the plurality of image acquisition units being an image acquisition unit that acquires an image at a first frame rate and at least one image acquisition unit of the plurality of image acquisition units being an image acquisition unit that acquires an image at a second frame rate higher than the first frame rate, a moving obj ect detection unit that detects a moving object based on an image acquired by the image acquisition unit that acquires an image at the second frame rate, and a distance detection unit that detects a distance to a subject based on disparity between a plurality of images acquired by the plurality of image acquisition units.