User's Manual
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analysis results.
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If the analysis target is
Human, see "6.5.4.1 Human Search".
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If the analysis target is Vehicle, see "6.5.4.2 Vehicle Search".
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If the analysis target is
Non-motor Vehicle, see "6.5.4.3 Non-motor Vehicle Search".
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If the analysis target is Face, see "6.3.2.6 Face Search".
7.4.2 Extracting Eigenvector Again
Re-extract Eigenvector of images with unmatched versions, to improve AI analysis accuracy.
The Extract Eigenvector Again function is triggered automatically after Eigenvector model is
updated. After the model version update, the system re-extracts face databases and passerby
databases first and then hot data. The hot data includes history capture data.
Step 1 Log in to PCAPP.
Step 2 On the LIVE page, click , and then select TASK > Extract Eigenvector Again.
Step 3 Click to enable the function.
Figure 7-55 Extract Eigenvector Again
Step 4 Specify the start time and end time of the day.
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The system automatically creates tasks to re-extract Eigenvector of history images with
unmatched model versions during the period.
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During the re-extraction period, the AI functions are not available.
7.5 Backup
Step 1 On the LIVE page, click , and then select BACKUP.