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docs: document Gemini 301 AE parameters

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ob-yalian
2026-09-21 17:47:49 +08:00
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docs/en/source/camera_devices/4_application_guide/launch_parameters.md
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@@ -69,6 +69,8 @@ The following are the launch parameters available:
* Enable or disable the corresponding image stream.
> **Gemini 301 series limitation:** All enabled image streams with an FPS greater than `0` must use the same FPS. The node validates this requirement at startup and when profiles are switched at runtime through `/camera/set_stream_profile`.
>
> **Gemini 301 series AE controls:** Use `enable_ir_auto_exposure`, `ir_exposure`, `ir_gain`, and `ir_ae_max_exposure`. The launch file no longer declares `enable_auto_exposure` or the color-specific AE/exposure/gain arguments. When migrating YAML, multiply color exposure/max-exposure values by `100`; IR units are unchanged.
* **`depth_decimation_factor`** / **`left_ir_decimation_factor`** / **`right_ir_decimation_factor`**
* Set the downsampling multiple. You can use `ros2 run orbbec_camera list_camera_profile_mode_node` to view the settable resolution. **Default value:** `1`.