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RGBD based depth data capture

asked 2014-10-02 17:42:41 -0500

SumitM gravatar image

Hi, I was wondering if it's possible to save depth data in a way similar to video format? I am able to save it a jpg image as well as export depth data to a csv, if that helps in anyway. i am kinda new to the image processing and any help will be greatly appreciated. Thanks in advance, Sumit

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answered 2014-10-03 03:45:18 -0500

If you want to store your data in a video format, then simply do it by pushing your resulting images into a VideoWriter stream. More info in the documentation!

A code snippet that illustrates the idea

// Create globally a VideoWriter element
// Adapt parameters to your needs
VideoWriter video_output ("~/video.avi", CV_FOURCC("M","J","P","G"), 25, Size(480, 640), true);

// Matrix containing the dept data
// Use your previous processing to push data into this
Mat depth_data;

// Push the image to the video stream
depth_data >> video_output;
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Thanks Steven (StevenPuttemans).......that seems more appropriate!!!

SumitM gravatar imageSumitM ( 2014-10-10 15:53:25 -0500 )edit

Do accept the solution if this is what you need :)

StevenPuttemans gravatar imageStevenPuttemans ( 2014-10-11 08:05:14 -0500 )edit

It would if I could somehow access depth sensor in my RGBD camera. Do you know anyway of doing it? Please refer to my question at and let me know if you need any clarification. Thanks in advance!!!

SumitM gravatar imageSumitM ( 2014-10-11 12:47:30 -0500 )edit

Afaik a depth sensor returns a RGBD image so you juyst need to grab the 4th channel.

StevenPuttemans gravatar imageStevenPuttemans ( 2014-10-11 14:01:01 -0500 )edit

answered 2014-10-02 17:56:42 -0500

juanmanpr gravatar image

Something like this could work for you?

cv::FileStorage fs("data.xml", cv::FileStorage::WRITE);
std::vector<cv::Mat> rgbdData;
fs << rgbdData;
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Thanks, I will give it a try :)

SumitM gravatar imageSumitM ( 2014-10-02 20:09:02 -0500 )edit

QUOTE: I was wondering if it's possible to save depth data in a way similar to video format I am sorry but XML data is far from a video format. I do not think this is what the author requested.

StevenPuttemans gravatar imageStevenPuttemans ( 2014-10-03 03:46:43 -0500 )edit
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Asked: 2014-10-02 17:42:41 -0500

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Last updated: Oct 03 '14