Object Tracking via 3D Coordinate Extraction and Projection
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Solution Overview
Problem
Current object tracking systems face increased data transmission and system loading when transmitting 2D image coordinate information, which affects performance.
Innovation Solution
The method involves capturing images to obtain 3D world coordinate information, transmitting this information along with a projection matrix to a display device, which converts it into 2D image coordinate information for displaying patterns corresponding to the objects, reducing the need for extensive data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the camera transmits 2D image coordinate information to the display device for object tracking, then the display device can display tracking information according to the coordinate data, but the data transmitting amount increases and system loading becomes heavier
Solution Approach 1:
The patent extracts only the essential 3D world coordinate information from the image analysis results and transmits it to the display device, rather than transmitting all 2D image coordinate data. This extraction of core information reduces data transmission volume while maintaining tracking accuracy.
Solution Approach 2:
The patent transforms the coordinate system from 2D image coordinates to 3D world coordinates. By using 3D world coordinate information combined with a projection matrix, the system achieves more efficient data representation that reduces transmission requirements while preserving the ability to accurately display tracking information.
2Adaptability or versatility
If the camera transmits different 2D image coordinate information for different tracking information (shape, length, width, height), then the display device can display comprehensive tracking details, but the data transmitting amount increases significantly
Solution Approach 1:
The patent makes the 3D world coordinate information and projection matrix universal data that can serve multiple tracking information display needs. A single set of transmitted data enables the display device to generate various tracking representations (shape, length, width, height) without requiring separate transmissions for each type.
Solution Approach 2:
The camera performs preliminary analysis to extract 3D world coordinate information and prepares the projection matrix in advance. This preliminary processing creates a compact data foundation that the display device can later expand into various tracking information formats without requiring additional data transmission.
3Measurement precision
If the system transmits more 2D image coordinate information to enhance tracking display capability, then the display quality improves, but the system performance is influenced due to increased loading
Solution Approach 1:
The system extracts only the necessary 3D world coordinate information from complex image data, removing redundant 2D coordinate information. This extraction maintains tracking detail quality while reducing the computational loading on the system.
Solution Approach 2:
The patent changes the coordinate system parameters from 2D image coordinates to 3D world coordinates with a projection matrix. This parameter transformation creates a more efficient data representation that preserves tracking information detail while reducing data volume and system loading.
Data Source
AI summary
A method for transmitting and displaying an object tracking information includes steps of capturing an image by a camera, wherein an object exists in the image; analyzing the image by the camera to obtain a 3D world coordinate information of the object; transmitting a projection matrix and the 3D world coordinate information to a display device by the camera; using the projection matrix to convert the 3D world coordinate information into a 2D image coordinate information by the display device; and displaying a pattern corresponding to the object according to the 2D image coordinate information by the display device.