ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange
Ask Your Question
2

Converting from RGB to depth

asked 2011-02-28 01:50:05 -0500

caspersky gravatar image

updated 2016-10-24 09:00:40 -0500

ngrennan gravatar image

hello,

i know that given a (u,v,depth) in the depth image it is easy to retreive the corresponding rgb pixel by unporjecting the depth pixel and projecting to RGB image using the [R T] now my question is, is it possible to do the inverse ? ( having an rgb pixel, retreive the corresponding depth pixel?) and if yes, how ? thx

edit retag flag offensive close merge delete

4 Answers

Sort by ยป oldest newest most voted
9

answered 2011-03-01 03:16:03 -0500

sebsch gravatar image

openni_camera already provides what you are looking for by default in its current version!

If you have a look at the rgb and depth image you will find that the depth image is already transformed and projected to camera coordinates of the rgb camera: image description

Note that you can turn this off by changing the setting for depth_registration after running:

rosrun dynamic_reconfigure reconfigure_gui

Make sure to have a look at the wiki page as well.

edit flag offensive delete link more
0

answered 2011-02-28 21:44:06 -0500

caspersky gravatar image

no answer ?

edit flag offensive delete link more

Comments

your questions still does not make complete sense.
Yogi gravatar image Yogi  ( 2011-03-01 01:13:41 -0500 )edit
0

answered 2011-02-28 06:48:58 -0500

caspersky gravatar image

sorry i mentioned this in the tag and not in th post, i am talking about kinect where depth and rgb images are available hope this clarify my question

edit flag offensive delete link more
0

answered 2011-02-28 04:48:33 -0500

Yogi gravatar image

Sorry, but are you asking if given ONE single image, can we extract depth information? answer is NO.

edit flag offensive delete link more

Question Tools

Stats

Asked: 2011-02-28 01:50:05 -0500

Seen: 2,828 times

Last updated: Mar 02 '11