<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[颜色识别]]></title><description><![CDATA[<p dir="auto">要想小强跟踪某个颜色，在follower.cpp中那个感兴趣的区域中，怎么添加颜色变量</p>
]]></description><link>http://community.bwbot.org/topic/437/颜色识别</link><generator>RSS for Node</generator><lastBuildDate>Fri, 16 Oct 2026 09:36:33 GMT</lastBuildDate><atom:link href="http://community.bwbot.org/topic/437.rss" rel="self" type="application/rss+xml"/><pubDate>Wed, 18 Apr 2018 12:27:54 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to 颜色识别 on Wed, 09 May 2018 01:36:44 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="http://community.bwbot.org/uid/552">@laijin</a> 如果没有数据发布就不是坐标系的问题，有可能是你订阅的topic不对，默认订阅的topic名称和你实际的topic名字是不一样的，要做一下remap</p>
]]></description><link>http://community.bwbot.org/post/596</link><guid isPermaLink="true">http://community.bwbot.org/post/596</guid><dc:creator><![CDATA[weijiz]]></dc:creator><pubDate>Wed, 09 May 2018 01:36:44 GMT</pubDate></item><item><title><![CDATA[Reply to 颜色识别 on Sat, 05 May 2018 07:19:01 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="http://community.bwbot.org/uid/7">@weijiz</a> 我试了几次，都是没有数据发布，rviz中倒是没有出现什么异常的显示，如果要校正坐标系，应该如何校正</p>
]]></description><link>http://community.bwbot.org/post/592</link><guid isPermaLink="true">http://community.bwbot.org/post/592</guid><dc:creator><![CDATA[laijin]]></dc:creator><pubDate>Sat, 05 May 2018 07:19:01 GMT</pubDate></item><item><title><![CDATA[Reply to 颜色识别 on Fri, 04 May 2018 12:49:39 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="http://community.bwbot.org/uid/552">@laijin</a> 有可能是坐标系不对，也有可能是点云数据没发出来。可以看看rviz里面是不是有错误提示。</p>
]]></description><link>http://community.bwbot.org/post/590</link><guid isPermaLink="true">http://community.bwbot.org/post/590</guid><dc:creator><![CDATA[weijiz]]></dc:creator><pubDate>Fri, 04 May 2018 12:49:39 GMT</pubDate></item><item><title><![CDATA[Reply to 颜色识别 on Fri, 04 May 2018 10:01:51 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="http://community.bwbot.org/uid/7">@weijiz</a> 请问我把点云的topic数据发布出来后，没有显示什么，请问前辈知道是为什么吗，是摄像头方面设置问题还是什么</p>
]]></description><link>http://community.bwbot.org/post/589</link><guid isPermaLink="true">http://community.bwbot.org/post/589</guid><dc:creator><![CDATA[laijin]]></dc:creator><pubDate>Fri, 04 May 2018 10:01:51 GMT</pubDate></item><item><title><![CDATA[Reply to 颜色识别 on Wed, 02 May 2018 08:35:55 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="http://community.bwbot.org/uid/552">@laijin</a> 这是一个nodelet, 启动方式和一般的node不一样</p>
<pre><code class="language-bash"># 启动nodelet manager
rosrun nodelet nodelet manager
# 启动处理的nodelet
rosrun nodelet nodelet load depth_image_proc/point_cloud_xyz manager
</code></pre>
<p dir="auto">最好写一个launch文件去处理，把你的topic remap到wiki里对应的topic</p>
]]></description><link>http://community.bwbot.org/post/587</link><guid isPermaLink="true">http://community.bwbot.org/post/587</guid><dc:creator><![CDATA[weijiz]]></dc:creator><pubDate>Wed, 02 May 2018 08:35:55 GMT</pubDate></item><item><title><![CDATA[Reply to 颜色识别 on Wed, 02 May 2018 08:13:13 GMT]]></title><description><![CDATA[<p dir="auto">那个文档直接使用rosrun depth_image_proc depth_image_proc这个命令吗，kinect摄像头不是直接就有点云吗，请问为什么需要通过让深度图像和RGB图像对齐，不好意思，新手，问的有点多</p>
]]></description><link>http://community.bwbot.org/post/582</link><guid isPermaLink="true">http://community.bwbot.org/post/582</guid><dc:creator><![CDATA[laijin]]></dc:creator><pubDate>Wed, 02 May 2018 08:13:13 GMT</pubDate></item><item><title><![CDATA[Reply to 颜色识别 on Wed, 18 Apr 2018 13:12:25 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="http://community.bwbot.org/uid/552">@laijin</a> 这个需要先把深度图像和RGB图像进行对齐。可以参照这里的<a href="http://wiki.ros.org/depth_image_proc#depth_image_proc.2BAC8-point_cloud_xyzrgb" target="_blank" rel="noopener noreferrer">文档 </a>。对齐之后会发布出来point cloud的topic里面的点都是有颜色的，然后在修改follower.cpp对特定颜色的点进行处理。</p>
]]></description><link>http://community.bwbot.org/post/552</link><guid isPermaLink="true">http://community.bwbot.org/post/552</guid><dc:creator><![CDATA[weijiz]]></dc:creator><pubDate>Wed, 18 Apr 2018 13:12:25 GMT</pubDate></item></channel></rss>