1.安裝參考博文：
https://blog.csdn.net/u012424737/article/details/80609451
２.遇到問題：
Version: 0.2.0
Environment variables: LOGFILE=<protonect.log>
Usage: /home/xtu/libfreenect2/build/bin/Protonect [-gpu=<id>] [gl | cl | clkde | cuda | cudakde | cpu] [<device serial>]
[-noviewer] [-norgb | -nodepth] [-help] [-version]
[-frames <number of frames to process>]
To pause and unpause: pkill -USR1 Protonect
[Info] [Freenect2Impl] enumerating devices...
[Info] [Freenect2Impl] 6 usb devices connected
[Info] [Freenect2Impl] found valid Kinect v2 @1:3 with serial 010608642947
[Info] [Freenect2Impl] found 1 devices
[Info] [Freenect2DeviceImpl] opening...
[Error] [protocol::UsbControl] failed to claim interface with IrInterfaceId(=1)! LIBUSB_ERROR_BUSY Resource busy. Try debugging with environment variable: export LIBUSB_DEBUG=3 .
[Info] [Freenect2DeviceImpl] closing...
[Info] [Freenect2DeviceImpl] deallocating usb transfer pools...
[Info] [Freenect2DeviceImpl] closing usb device...
[Info] [Freenect2DeviceImpl] closed
[Error] [Freenect2Impl] failed to open Kinect v2: @1:3
failure opening device!
解決：開始使用電腦的usb2.0接口，換成３.0即可。不知道哪個是3.0，就都試一遍