ROS Answers: Open Source Q&A Forum - RSS feedhttps://answers.ros.org/questions/Open source question and answer forum written in Python and DjangoenROS Answers is licensed under Creative Commons Attribution 3.0Sat, 08 Jun 2019 19:31:44 -0500What is the pixel disparity of rtabmap? Want tohttps://answers.ros.org/question/325046/what-is-the-pixel-disparity-of-rtabmap-want-to/ I want to estimate the depth accuracy of my stereo camera using this formula:
https://stackoverflow.com/questions/19421003/how-field-of-view-changes-depth-estimation-in-stereo-vision
So if I need to detect at 4 meters I am getting a pixel disparity of 7 pixels. Is that good enough? What can rtabmap offer in this term?Sat, 08 Jun 2019 03:40:40 -0500https://answers.ros.org/question/325046/what-is-the-pixel-disparity-of-rtabmap-want-to/Comment by jayess for <p>I want to estimate the depth accuracy of my stereo camera using this formula:</p>
<p><a href="https://stackoverflow.com/questions/19421003/how-field-of-view-changes-depth-estimation-in-stereo-vision">https://stackoverflow.com/questions/1...</a></p>
<p>So if I need to detect at 4 meters I am getting a pixel disparity of 7 pixels. Is that good enough? What can rtabmap offer in this term?</p>
https://answers.ros.org/question/325046/what-is-the-pixel-disparity-of-rtabmap-want-to/?comment=325072#post-id-325072Can you please update your question with the formula that you wish to use? That way, should that link change, this question is still self-contained.Sat, 08 Jun 2019 19:31:44 -0500https://answers.ros.org/question/325046/what-is-the-pixel-disparity-of-rtabmap-want-to/?comment=325072#post-id-325072Answer by JustinBlack02 for <p>I want to estimate the depth accuracy of my stereo camera using this formula:</p>
<p><a href="https://stackoverflow.com/questions/19421003/how-field-of-view-changes-depth-estimation-in-stereo-vision">https://stackoverflow.com/questions/1...</a></p>
<p>So if I need to detect at 4 meters I am getting a pixel disparity of 7 pixels. Is that good enough? What can rtabmap offer in this term?</p>
https://answers.ros.org/question/325046/what-is-the-pixel-disparity-of-rtabmap-want-to/?answer=325068#post-id-325068Pixel disparity is unrelated to rtabmap. If you want to follow that formula then you will need to retrieve the intrinsic values of the image sensor of your stereo camera from its datasheet.
- Baseline
- Focal length
- Pixel sizeSat, 08 Jun 2019 18:33:11 -0500https://answers.ros.org/question/325046/what-is-the-pixel-disparity-of-rtabmap-want-to/?answer=325068#post-id-325068