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LPR tweaks (#17783)

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* clarify docs

* improve debugging messages

* don't run any lpr postprocessing

* wording
This commit is contained in:
Josh Hawkins
2025-04-18 08:45:37 -05:00
committed by GitHub
parent 19aaa64fe9
commit 14a32a6472
5 changed files with 37 additions and 14 deletions
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6
docs/docs/configuration/license_plate_recognition.md
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@@ -184,7 +184,7 @@ cameras:
ffmpeg: ... # add your streams
detect:
enabled: True
fps: 5 # increase to 10 if vehicles move quickly across your frame. Higher than 10 is unnecessary and is not recommended.
fps: 5 # increase to 10 if vehicles move quickly across your frame. Higher than 15 is unnecessary and is not recommended.
min_initialized: 2
width: 1920
height: 1080
@@ -267,7 +267,7 @@ With this setup:
- Review items will always be classified as a `detection`.
- Snapshots will always be saved.
- Zones and object masks are **not** used.
- The `frigate/events` MQTT topic will **not** publish tracked object updates, though `frigate/reviews` will if recordings are enabled.
- The `frigate/events` MQTT topic will **not** publish tracked object updates with the license plate bounding box and score, though `frigate/reviews` will publish if recordings are enabled. If a plate is recognized as a known plate, publishing will occur with an updated `sub_label` field. If characters are recognized, publishing will occur with an updated `recognized_license_plate` field.
- License plate snapshots are saved at the highest-scoring moment and appear in Explore.
- Debug view will not show `license_plate` bounding boxes.
@@ -280,7 +280,7 @@ With this setup:
| Object Detection | Standard Frigate+ detection applies | Bypasses standard object detection |
| Zones & Object Masks | Supported | Not supported |
| Debug View | May show `license_plate` bounding boxes | May **not** show `license_plate` bounding boxes |
| MQTT `frigate/events` | Publishes tracked object updates | Does **not** publish tracked object updates |
| MQTT `frigate/events` | Publishes tracked object updates | Publishes limited updates |
| Explore | Recognized plates available in More Filters | Recognized plates available in More Filters |
By selecting the appropriate configuration, users can optimize their dedicated LPR cameras based on whether they are using a Frigate+ model or the secondary LPR pipeline.