added pyk4a instruction

README.md

@@ -6,11 +6,18 @@ This is the python package to use Kinect (remotely). It has two parts: server an
 - Follow [this guide](https://github.com/microsoft/Azure-Kinect-Sensor-SDK) to install the Azure Kinect SDK (K4A).
 - On Ubuntu, you’ll need to set up a udev rule to use the Kinect camera without `sudo`. Follow [these instructions](https://github.com/microsoft/Azure-Kinect-Sensor-SDK/blob/develop/docs/usage.md#linux-device-setup).
 - Make sure you can run `k4aviewer` from the terminal without `sudo`.
+
+### Open3d version
 - ```pip install open3d aiohttp imageio```.
-- If you are running in ssh, make sure that nomachine is running and `export DISPLAY=:1`
+- If you are running in ssh, make sure that nomachine is running and `export DISPLAY=:0`
 - ```python run_server.py --port PORT```
 - (optional) Modify `kinect_config.json`. For further instructions, please refer to [this guide](http://www.open3d.org/docs/latest/tutorial/Basic/azure_kinect.html).
 
+### pyk4a version
+- ```pip install pyk4a aiohttp imageio```.
+- If you are running in ssh, make sure that nomachine is running and `export DISPLAY=:0`
+- ```python run_server.py --port PORT```
+
 ## Client Usage
 - Option1: browse. Open a browse and visit `IP:PORT/view`. You will see both color image and depth image.
 - Option2: python. `KinectClient` can get cam_intr and RGBD image. Please refer to `run_client.py` for more details.