diff --git a/docs/docs/configuration/license_plate_recognition.md b/docs/docs/configuration/license_plate_recognition.md index a18c822f5..5f70dd9a0 100644 --- a/docs/docs/configuration/license_plate_recognition.md +++ b/docs/docs/configuration/license_plate_recognition.md @@ -68,8 +68,8 @@ Fine-tune the LPR feature using these optional parameters at the global level of - Default: `1000` pixels. Note: this is intentionally set very low as it is an _area_ measurement (length x width). For reference, 1000 pixels represents a ~32x32 pixel square in your camera image. - Depending on the resolution of your camera's `detect` stream, you can increase this value to ignore small or distant plates. - **`device`**: Device to use to run license plate detection _and_ recognition models. - - Default: `CPU` - - This can be `CPU`, `GPU`, or the GPU's device number. For users without a model that detects license plates natively, using a GPU may increase performance of the YOLOv9 license plate detector model. See the [Hardware Accelerated Enrichments](/configuration/hardware_acceleration_enrichments.md) documentation. However, for users who run a model that detects `license_plate` natively, there is little to no performance gain reported with running LPR on GPU compared to the CPU. + - Default: `None` + - This is auto-selected by Frigate and can be `CPU`, `GPU`, or the GPU's device number. For users without a model that detects license plates natively, using a GPU may increase performance of the YOLOv9 license plate detector model. See the [Hardware Accelerated Enrichments](/configuration/hardware_acceleration_enrichments.md) documentation. However, for users who run a model that detects `license_plate` natively, there is little to no performance gain reported with running LPR on GPU compared to the CPU. - **`model_size`**: The size of the model used to identify regions of text on plates. - Default: `small` - This can be `small` or `large`. @@ -432,6 +432,6 @@ If you are using a model that natively detects `license_plate`, add an _object m If you are not using a model that natively detects `license_plate` or you are using dedicated LPR camera mode, only a _motion mask_ over your text is required. -### I see "Error running ... model" in my logs. How can I fix this? +### I see "Error running ... model" in my logs, or my inference time is very high. How can I fix this? This usually happens when your GPU is unable to compile or use one of the LPR models. Set your `device` to `CPU` and try again. GPU acceleration only provides a slight performance increase, and the models are lightweight enough to run without issue on most CPUs.