Image Capturing Apparatus Control for Inconsistent PTZ Tracking
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Solution Overview
Problem
The ONVIF standard lacks the ability to distinguish between optical PTZ and digital PTZ configurations, leading to inconsistencies in video source and PTZ settings, which can cause instability and failure in tracking operations within image capturing apparatuses.
Innovation Solution
An image capturing apparatus with a control unit that receives and processes the MoveAndStartTracking command, determining consistency between video source and PTZ configurations, and selectively ignoring or using setting values to perform either optical or digital PTZ tracking based on the received command, ensuring consistent operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tracking operation is uniformly stopped when there is an inconsistency in setting values, then the system stability is improved, but the tracking functionality is lost in many cases
Solution Approach 1:
The control unit dynamically changes the operational parameters by selectively ignoring specific inconsistent setting values while executing other parts of the command. Instead of uniformly stopping the tracking operation, the system adjusts which parameters are applied based on their consistency, allowing tracking to continue with available valid settings.
Solution Approach 2:
The system performs partial action by executing the tracking command with only the consistent and valid setting values, rather than requiring complete consistency of all parameters. This allows the tracking operation to proceed with the portion of the command that is valid, sacrificing only the inconsistent parameters.
2Reliability
If the system checks for consistency in setting value groups, then the operation stability is improved, but the complexity of the control process increases
Solution Approach 1:
The control unit performs self-service by automatically detecting inconsistent setting values and selectively ignoring them without requiring external intervention or complex validation procedures. The system serves itself by identifying and handling its own configuration errors autonomously.
Solution Approach 2:
The system changes the operational parameters by dynamically selecting which setting values to apply based on their consistency. The control unit adjusts the parameter set in real-time, switching between using and ignoring specific values depending on their validity, thereby managing complexity through adaptive parameter selection.
3Ease of operation
If all setting values in the command are used, then the command execution is simplified, but the tracking operation becomes unstable due to inconsistencies
Solution Approach 1:
The control unit extracts and removes the inconsistent setting values from the command execution process. By taking out only the problematic parameters while retaining and executing the consistent ones, the system simplifies command execution by filtering out errors rather than requiring complete validation of all parameters.
Solution Approach 2:
The system dynamically changes which parameters are active during execution. Instead of using all setting values uniformly, the control unit modifies the parameter set by activating only those values that are consistent, thereby maintaining both ease of execution and operational stability.
Data Source
AI summary
An image capturing apparatus is provided and includes a driving unit configured to drive the image capturing apparatus and change an imaging region by an image capturing unit; a tracking unit configured to track a subject included in the imaging region in a captured video obtained by the image capturing unit; a communication unit configured to receive a control command from an external apparatus; and a control unit configured to control at least one of the driving unit and the tracking unit based on a control command received by the communication unit. When a control command includes a change request to change an imaging region and a tracking request to track a subject and there is an inconsistency in a setting value group of the change request, the control unit does not use at least one setting value included in the setting value group.