本帖最后由 rrrrrr 于 2021-10-24 14:50 编辑
运行ar_track.launch文件，无法显示色块
首先在命令行中输入roslaunch robot_demo ar_track.launch
然后打开/usb_cam_head/image_raw网页
原本应该这样
但是我测试的是这样，无法显示识别的颜色
报错内容：
[ERROR] [1635055858.907846293]: Error in ar_track_alvar callback
[ERROR] [1635055867.516161958]: Error in ar_track_alvar callback
[ERROR] [1635055889.648424084]: Error in ar_track_alvar callback
[ INFO] [1635055897.074038218]: Handling Request: /
[ INFO] [1635055897.139319861]: Handling Request: /favicon.ico
[ERROR] [1635055912.894919395]: Error in ar_track_alvar callback
[ERROR] [1635055914.899352935]: Error in ar_track_alvar callback
[ERROR] [1635055928.774022113]: Error in ar_track_alvar callback
[ERROR] [1635055985.017875195]: Error in ar_track_alvar callback
[ERROR] [1635055987.394431127]: Error in ar_track_alvar callback
[ERROR] [1635055995.146420225]: Error in ar_track_alvar callback
[ERROR] [1635055995.894682149]: Error in ar_track_alvar callback
[ERROR] [1635055996.017251502]: Error in ar_track_alvar callback
[ERROR] [1635056002.021364866]: Error in ar_track_alvar callback
[ERROR] [1635056003.393037337]: Error in ar_track_alvar callback
[ERROR] [1635056008.019534108]: Error in ar_track_alvar callback
[ INFO] [1635056022.436580135]: Handling Request: /stream_viewer?topic=/usb_cam_head/imag e_raw
[ INFO] [1635056022.460012895]: Handling Request: /stream?topic=/usb_cam_head/image_raw
[ERROR] [1635056025.144664046]: Error in ar_track_alvar callback
[ INFO] [1635056035.569110995]: Handling Request: /stream_viewer?topic=/usb_cam_chest/ima ge_raw
[ INFO] [1635056035.608280011]: Handling Request: /stream?topic=/usb_cam_chest/image_raw
[ERROR] [1635056042.891130778]: Error in ar_track_alvar callback
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