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Questions tagged [stereo-3d]

This tag should only be used for issues directly related to binocular graphical rendering. If you are not displaying different graphical images to the left and right eyes, do not use this tag.

This tag should only be used for issues directly related to binocular graphical rendering. If you are not displaying different graphical images to the left and right eyes, do not use this tag.

Stereo 3D refers to a class of techniques for displaying two different images to a viewer's left and right eyes.

For other types of solid model rendering, use , or a tag specific to your platform.

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Fundamental matrix to be computed or known apriori, for real world applications

If you are to design a real world application of a stereo vision algorithm, lets say for a UAV or a spacecraft which is computing elevation maps from the two images, is the fundamental matrix known a priori or will I have to calculate it alongside…
Zwähnia
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opencv gives exception with cvFindStereoCorrespondenceBM

I wrote a code to find disparity map from two images "left" and "right"; and saving the map in "stereo". The code seems okay to me but somehow I'm getting exception: On the terminal window: OpenCV Error: Bad argument (Unknown array type) in unknown…
Jekin
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How to get points in stereo image from extrinsic parameters

I've got a pair of cameras calibrated, knowing their intrinsic and extrinsic parameters. Knowing that they are both looking to a plane, if I define some points in one of the image, how can I get the point in the other image? The cameras are pretty…
Ander Biguri
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Stereo images rectification and disparity: which algorithms?

I'm trying to figure out what are currently the two most efficent algorithms that permit, starting from a L/R pair of stereo images created using a traditional camera (so affected by some epipolar lines misalignment), to produce a pair of adjusted…
TheUnexpected
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initUndistortRectifyMap returns empty map matrices (c++)

I have first calibrated my cameras using the sample code in the opencv package (stereo_calib.cpp). Now I want to use this to rectify the images for stereo matching. I started out rectifying one image but i can't get it to work simply because…
TobyHijzen
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Good Pre-Built Stereo Camera and Robot Vehicle Suggestion

I am working on a hobby project related to autonomous navigation. I want to use stereo camera for obstacle detection and then control the movement of robot vehicle to avoid obstacle. (1) I am trying to find a readymade robot vehicle that has…
hohenhiem
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stereo reconstruction of point cloud based on rectified images

I have a pair of matched 2D features extracted from rectified stereo image. Using cvPerspectiveTransform function in OpenCV, I attempted to reconstruct those features in 3D. The result is not consistent with the actual object dimension in real…
small_potato
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Stereo 3D Rendering issue with OpenGL

I am trying to draw a basic mesh loaded from an .obj file using stereoscopic 3D rendering on a NVIDIA Quadro 5000. From what I can tell I think I got my left eye and right eye frustums and offsets set accordingly, but my main issue is with writing…
Dragos Budan
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Does SharpGL Support Quad Buffer Stereo?

I'm looking for a platform to display a pair of stereo bitmap images to a user wearing shutter glasses. I'm exploring the possibility of implementing this in OpenGL via SharpGL. My target is WPF but Winforms would not a deal breaker. So... Can…
magnvs
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How does Android MediaPlayer decide 3D Display by looking SEI FPA?

I want to understand the working principles of the HTC Evo 3D's 3D Display; however, the code and HTCDev's tutorial do not help on this. It is said that the SEI FPA bit in the header overrides the choice which is given by hand such as: public void…
peagasus
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Issue with cvReprojectImageTo3D and CV_32FC3

I need your help. I have implemented stereo calibration, rectification using my stereo pair. I have got a disparity image which is quite reasonable. The problem that I face is with cvReprojectImageTo3D.I have used stereobM. And rectified in a…
nbsrujan
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Rotation Matrices of Coordinate Systems ( Euler Angles, Handed-ness)

I have a coordinate system in which the orientation of a camera is represented as R=Rz(k) * Ry(p) * Rx(o) where R is a 3x3 matrix of the composition of 3x3 rotation matrices around each of X,Y,Z-axis. Moreover, I have a convention in which Z-axis is…
Mustafa
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Getting depth map from stereo pair?

Does anyone experience to get depth map from stereo pair? I wonder if are there any methods to get depth information without camera parameters. I am trying to get depth map from stereo pair
Linh Nguyen
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Path detection and progress in the maze with live stereo3d image

I'm producing an ugv prototype. The goal is to perform the desired actions to the targets set within the maze. When I surf the Internet, the mere right to navigate in the labyrinth is usually made with a distance sensor. I want to consult more ideas…
Muhammed YILMAZ
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Can any one tell me why the cloud points got from stereo camera(left and right camera images) are only on a flat plat and no depth

Can any one tell me why the cloud points got from stereo camera(left and right camera images) using OpenCv C++ are only on a flat plat and no depth. side image frontal image
Swati
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