kinect2_bridge运行报错

装好libfreenect2和iai_kinect2后，测试一下装好没有
执行

roslaunch kinect2_bridge kinect2_bridge.launch

出现下面的报错

[ERROR] [1598839556.338267422]: [DepthRegistrationOpenCL::init] could not find any suitable device
[Info] [Freenect2DeviceImpl] closing...
[Info] [Freenect2DeviceImpl] releasing usb interfaces...
[Info] [Freenect2DeviceImpl] deallocating usb transfer pools...
[Info] [Freenect2DeviceImpl] closing usb device...
[Info] [Freenect2DeviceImpl] closed
[ERROR] [1598839556.338687227]: [Kinect2Bridge::start] Initialization failed!
[Info] [Freenect2DeviceImpl] closing...
[Info] [Freenect2DeviceImpl] already closed, doing nothing
[Error] [OpenCLAllocator] queue.enqueueUnmapMemObject(b->buffer, b->data, NULL, &event): -36
[Error] [OpenCLAllocator] queue.enqueueUnmapMemObject(b->buffer, b->data, NULL, &event): -36
[Error] [OpenCLAllocator] queue.enqueueUnmapMemObject(b->buffer, b->data, NULL, &event): -36
[FATAL] [1598839556.443583332]: Failed to load nodelet '/kinect2_bridge` of type `kinect2_bridge/kinect2_bridge_nodelet` to manager `kinect2'

问了师兄后，查看github中iai_kinect2的问答link，意识到是自己的电脑没有GPU，于是将指令改为：

roscore

打开新终端

rosrun kinect2_bridge kinect2_bridge   _depth_method:=cpu    _reg_method:=cpu

打开新终端

rosrun kinect2_viewer kinect2_viewer

ok，成功显现图像。
也可以通过rqt_image_view来显示

rosrun rqt_image_view rqt_image_view