Dynamic Detection Line for Accurate Moving Object Counting
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Solution Overview
Problem
Existing image processing techniques face challenges in accurately counting the number of moving objects, particularly people, due to variations in height and movement paths, making it difficult to set an appropriate detection line for reliable counting results.
Innovation Solution
An image processing apparatus that generates movement trajectories based on successive images, obtains and displays setting information for a detection line, determines the display form of trajectories according to their positional relationship with the detection line, and visually distinguishes passing and non-passing trajectories to assist in setting an appropriate detection line for accurate counting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed detection line is set to count moving objects, then the counting process is simple, but the counting accuracy deteriorates due to variations in object heights and movement paths
Solution Approach 1:
The patent applies dynamics by making the detection line adjustable and repositionable rather than fixed. The system allows the detection line to be dynamically moved to different positions and orientations based on the detected movement trajectories of objects, adapting to various heights and movement paths while maintaining accurate counting
2Measurement precision
If the detection line is adjusted to accommodate diverse movement paths, then the counting accuracy improves, but the ease of operation deteriorates due to complex detection line setting
Solution Approach 1:
The system applies self-service by automatically analyzing movement trajectories and autonomously determining the optimal detection line position and orientation. This automation eliminates the need for manual adjustment by users, making the system easy to operate while achieving high counting accuracy through adaptive detection line configuration
Solution Approach 2:
The patent implements feedback by using the detected movement trajectories to inform and adjust the detection line position. The system continuously monitors object movements, analyzes trajectory patterns, and uses this feedback to optimize the detection line configuration for accurate counting
3Measurement precision
If multiple detection lines are set to cover all possible trajectories, then the counting accuracy improves, but the device complexity increases
Solution Approach 1:
Rather than using multiple static detection lines, the patent employs a single dynamic detection line that can be repositioned and reoriented based on detected trajectories. This dynamic approach achieves the coverage of multiple trajectories without the complexity of configuring and maintaining multiple detection lines
Data Source
AI summary
An image processing apparatus includes a generation unit, an obtaining unit, a determination unit, and a display control unit. The generation unit generates a movement trajectory of an object based on a plurality of images obtained from successive image capturing. The obtaining unit obtains setting information of a detection line for detecting passage of the object. The determination unit determines a display form of the movement trajectory according to a positional relationship of the detection line corresponding to the setting information obtained by the obtaining unit and the movement trajectory generated by the generation unit. The display control unit displays the movement trajectory on a display screen in the display form determined by the determination unit.