Camera Tracking Correction for Poor Communication Conditions
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Solution Overview
Problem
Existing tracking imaging systems face challenges in maintaining accurate tracking of a target object when the communication state between a camera device and a terminal device is poor, leading to reduced tracking accuracy and increased time for reacquiring the target.
Innovation Solution
The camera device is equipped with an imaging unit, an imaging direction adjustment unit, a direction control unit, a camera-side tracking processing unit, a camera-side communication unit, and a camera-side target information correction unit, which work in conjunction with a terminal device to ensure accurate tracking by utilizing both camera-side and terminal-side analysis results, even in poor communication conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image processing for tracking is performed only in the terminal device, then tracking accuracy is improved when communication is good, but tracking reliability deteriorates when communication state is bad
Solution Approach 1:
The tracking function is segmented between the camera device and terminal device. The camera device performs local tracking processing independently to generate first target information, while the terminal device performs remote tracking processing to generate second target information. This segmentation allows the system to maintain tracking reliability through local processing while achieving high accuracy through remote processing when communication is available.
Solution Approach 2:
The patent introduces communication as an intermediary mechanism that allows the terminal device to correct and refine the tracking results from the camera device. When communication state is good, the terminal device receives captured image data, performs image processing, and transmits corrected target information back to the camera device, thereby improving tracking accuracy without compromising reliability.
2Reliability
If camera device performs tracking process independently, then tracking reliability is maintained in poor communication conditions, but tracking accuracy deteriorates due to lower calculation capability
Solution Approach 1:
The patent merges the tracking processing capabilities of both the camera device and terminal device. The camera device's local tracking results (first target information) are combined with the terminal device's remote tracking results (second target information) through a correction process. This merging allows the system to leverage the high calculation capability of the terminal device while maintaining the reliability advantage of local processing.
Solution Approach 2:
The system implements a feedback mechanism where the terminal device receives target information from the camera device, processes it, and sends corrected target information back. This feedback loop allows the terminal device to refine the tracking accuracy by comparing and correcting the camera device's tracking results, thereby improving measurement precision while maintaining reliability.
3Duration of action of stationary object
If tracking process shifts to camera device during communication failure, then tracking continuity is maintained, but time to reacquire target increases due to initial search operation
Solution Approach 1:
The camera device continuously performs preliminary tracking processing even when communication is available, generating first target information that serves as a ready-to-use backup. This preliminary action ensures that when communication fails, the camera device can immediately continue tracking without needing to perform a full initial search, thereby reducing the time loss while maintaining tracking continuity.
Data Source
AI summary
A camera device according to an aspect of the invention includes an imaging unit, an imaging direction adjustment unit, a direction control unit that controls the imaging direction adjustment unit, a camera-side tracking processing unit that analyzes captured image data to acquire first target information indicating the position of a tracking target and outputs the first target information, a camera-side communication unit that receives second target information from a terminal device, and a camera-side target information correction unit that corrects the first target information on the basis of the second target information.