Stereo Camera Vertical Displacement Detection Using Block Line Processing
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Solution Overview
Problem
The existing stereo camera devices face increased hardware and power consumption due to slower processing cycles for positional deviation adjustments, which are typically handled by software, leading to inefficiencies in real-time parallax calculations.
Innovation Solution
A stereo camera device configuration that includes a one-dimensional converting unit for block line units in the stereo matching circuit, allowing for simultaneous processing of vertical displacement detection and parallax calculation using common hardware, thereby reducing the need for additional hardware and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a stereo camera device is integrated into an existing surveillance camera system, then surveillance functionality is maintained, but the structural complexity and difficulty of integration increase
Solution Approach 1:
The patent combines the stereo camera device with the surveillance camera by integrating the illumination unit and control unit into a single unified device. The control unit receives images from both the surveillance camera and stereo camera, processes them together, and outputs combined results, thereby maintaining surveillance functionality while reducing integration complexity through functional merging.
Solution Approach 2:
The control unit is designed to handle multiple functions: it processes images from the surveillance camera for surveillance purposes, processes images from the stereo camera for 3D measurement, and can output both surveillance images and measurement data. This multi-functional design allows a single device to serve both surveillance and stereo measurement purposes without requiring separate dedicated systems.
2Use of energy by moving object
If the optical axis of the illumination unit is aligned with the optical axis of the camera, then illumination efficiency is improved, but the structure becomes more constrained and less adaptable to different mounting configurations
Solution Approach 1:
The illumination unit is designed with adjustable orientation capabilities, allowing its optical axis to be dynamically positioned relative to the camera's optical axis. This dynamic adjustment mechanism enables the system to achieve optimal illumination efficiency when needed while also accommodating various mounting configurations and spatial constraints through flexible repositioning.
Data Source
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AI summary
The objective of the present invention is to prevent an addition to the amount of hardware and an increase in the power consumption of a stereo camera, even if hardware is provided to increase the processing speed of vertical displacement adjustment. This stereo camera device 10 is provided with a stereo matching circuit 3031 which calculates parallax between a standard image and a reference image. The stereo matching circuit 3031 includes a one-dimensional converting unit 305 which reads out a two-dimensional image in block line units. The stereo matching circuit 3031 detects vertical displacement of the reference image relative to the standard image by searching for the reference image in each of the plurality of block lines.