<?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[Tracking Camera&#x27;s Pose Relative to Drone]]></title><description><![CDATA[<p dir="auto">I need to know the camera's position and orientation relative to the drone's body frame. This is so I can calculate its homogenous transformation relative to the drone, and then combine that camera imagery to localize detected objects in 3D space.</p>
<p dir="auto">I need to know the values of dx, dz and theta from this image:</p>
<p dir="auto"><img src="/assets/uploads/files/1664803229987-55ce6a3a-3095-4837-b71b-16e8975230fc-image.png" alt="55ce6a3a-3095-4837-b71b-16e8975230fc-image.png" class=" img-fluid img-markdown" /><br />
I'm assuming that the camera is centered laterally, so dy=0 (please correct me if this is incorrect), and that there is no roll or yaw with regards to its orientation. Hence the theta is the pitch or how much the camera is rotated along the y axis. Positive direction of y axis in image is out of the page.</p>
]]></description><link>https://forum.modalai.com/topic/1420/tracking-camera-s-pose-relative-to-drone</link><generator>RSS for Node</generator><lastBuildDate>Sat, 18 Jul 2026 14:42:29 GMT</lastBuildDate><atom:link href="https://forum.modalai.com/topic/1420.rss" rel="self" type="application/rss+xml"/><pubDate>Mon, 03 Oct 2022 13:22:52 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to Tracking Camera&#x27;s Pose Relative to Drone on Mon, 03 Oct 2022 18:06:34 GMT]]></title><description><![CDATA[<p dir="auto">Thanks, that's exactly what I'm looking for</p>
]]></description><link>https://forum.modalai.com/post/6603</link><guid isPermaLink="true">https://forum.modalai.com/post/6603</guid><dc:creator><![CDATA[alfa budiman]]></dc:creator><pubDate>Mon, 03 Oct 2022 18:06:34 GMT</pubDate></item><item><title><![CDATA[Reply to Tracking Camera&#x27;s Pose Relative to Drone on Mon, 03 Oct 2022 16:49:38 GMT]]></title><description><![CDATA[<p dir="auto">Hi,</p>
<p dir="auto">If you're running the rb5 flight with VOXL SDK on it, you can see the relations between elements in <code>/etc/modalai/extrinsics.conf</code>, if not you can see the file that would've been put there <a href="https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-mpa-tools/-/blob/master/misc_files/usr/share/modalai/extrinsic_configs/rb5_flight_v1.conf" rel="nofollow ugc">here</a>. We don't have <code>tracking--&gt;body</code> relation defined directly but we have <code>tracking--&gt;px4 imu</code> and <code>px4_imu--&gt;body</code> allowing you to calculate the relation.</p>
]]></description><link>https://forum.modalai.com/post/6599</link><guid isPermaLink="true">https://forum.modalai.com/post/6599</guid><dc:creator><![CDATA[[[global:former-user]]]]></dc:creator><pubDate>Mon, 03 Oct 2022 16:49:38 GMT</pubDate></item></channel></rss>