Moving Object Detection Display by Passing Direction
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Solution Overview
Problem
Conventional systems for counting moving objects on images cannot differentiate between types of objects, such as people, vehicles, or animals, and fail to display their behavior based on passing direction.
Innovation Solution
An information processing apparatus that includes a moving object detection unit, a passage determination unit, an image extraction unit, and a display control unit, which detects moving objects, determines their passage through a designated position, extracts region images based on passing direction, and displays them in time series, allowing for the differentiation and visualization of object types and behaviors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional counting systems are used to count moving objects, then the time-series change in the number of passing objects can be output, but the type of moving object (person, vehicle, animal) cannot be differentiated
Solution Approach 1:
The system segments the information output by creating separate display areas for different passing directions (left, right, up, down). Each direction's moving object images are displayed independently, allowing detailed observation of object types and behaviors without mixing different directional data, thus preventing information loss while maintaining manageable complexity
Solution Approach 2:
The system transitions from one-dimensional time-series counting to two-dimensional spatial-temporal display by arranging moving object images in a matrix with time series and direction series dimensions. This dimensional expansion allows simultaneous presentation of object type, direction, and temporal information without overwhelming system complexity
2Loss of information
If face images are displayed in a single time series as disclosed in Japanese Patent Laid-Open No. 2007-281680, then face detection capability is provided, but the behavior of moving objects according to passing direction cannot be grasped
Solution Approach 1:
The display area is segmented into multiple regions corresponding to different passing directions (left, right, up, down). Each segment independently displays time-series images of objects passing in that specific direction, preserving direction information while using a relatively simple segmented display structure rather than a complex unified system
Solution Approach 2:
The system adds a directional dimension to the traditional time-series display by organizing images along both time axis and direction axis. This creates a two-dimensional display matrix where one dimension represents time progression and the other represents passing direction, thereby capturing direction information without requiring overly complex display hardware
Data Source
AI summary
An information processing apparatus comprises a moving object detection unit configured to detect a moving object from a captured image; a passage determination unit configured to determine that the moving object has passed through a predetermined position in the captured image; an image extraction unit configured to extract a region image of the moving object that has passed through the predetermined position from the captured image; and a display control unit configured to make a display unit display, in time series, the region image for each passing direction of the moving object that has passed through the predetermined position.