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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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rvec/tvec from cv::calibrateCamera and R1 from cv::stereoRectify

Related posts: Exact definition of the matrices in OpenCv StereoRectify What is the camera frame of the rvec and tvec calculated from the cv::calibrateCamera? Is it the original (distorted) camera or the undistorted one? Does the camera coordinate…
linzhang.robot
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How to convert camera pose (Translation matrix) obtained from the essential matrix to world coordinate system

I have extracted Rotation and Translation matrices from the essential matrix. The translation vector has a scale ambiguity. Therefore, I couldn't define its "true" values. My steps were as…
Yacine
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Matlab/OpenCV stereo vision distance measurement is not accurate

After stereo calibration, when I run the Matlab example for stereo depth estimation (SDE), the distances are wrong: at about 2 meters, it always reports distance as less than 1m. And my 3D scene reconstruction looks cone-shaped instead of like the…
Doug Null
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Filtering in 3D space with CUDA, horizontal access faster than vertical access?

I'm trying to apply filter 1x3, 3x1 repectively in 3D-structure(volume). For example, if there is 20(cols) x 10(rows) x 10(depth) structure, for(int depth = 0; depth < 10; depth++) Apply image filter(depth); Apply filter to 2d image(20x10)…
DY Jun
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black borders to the left of objects in opencv SGBM depth map

Calibrated 2 same cameras with Opencv StereoCalib. I've got 0.32109 RMS error and 0.386568 average reprogection error results of calibrating I think this is not big calibration error. But am getting this depth map with opencv SGBM algorithm with…
Аскер Чик
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How to render side by side videos in OculusRiftEffect or VREffect

I'm experimenting with videojs-vr which is using THREE.OculusRiftEffect for rendering the video in an Oculus friendly way. I downloaded a side by side video from YouTube and played it within the videojs-vr example.html. Now I'm searching for a way…
curtiss
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What buffers to use for stereo in Qt using QOpenGLWidget?

I'm trying to do a stereoscopic visualization in Qt. I have found some tutorials but all of them use the older QGLWidget and the buffers GL_FRONT_LEFT and GL_FRONT_RIGHT. AS I'm using the newer QOpenGLWidget I tried drawing images to the same…
Daniel
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Enabling stereoscopic view in OpenGL in Qt

I want to use stereoscopic 3D in a C++ Qt application in an QOpenGLWidget. The code I currently have is: QSurfaceFormat format; format.setDepthBufferSize(24); //format.setOption(QSurfaceFormat::StereoBuffers,…
Daniel
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Play different sound in each ear on Android

If I've set up two byte arrays to play as audio from within an Android app, is there a way I can play one in each ear simultaneously? Would there be a way to set each sound to one side or to set the balance for each one?
user2649681
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Two Viewports for stereoscopic 3D without three.js

Is it possible to create a stereoscopic 3D vision of my scene, easilly, without resorting to three.js? I thought about 2 canvas or two viewports, but I don't know if it's possible to do so, so I've started by trying to create a new viewport, but it…
devilzzord
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Obtain 3D coordinates of an object detected through asus xtion pro live

System: I am using OpenNI 2.2 and openCV 2.4.9 on a Windows 8.1 64 bit machine I have an asus xtion pro live. This is a RGB and depth sensor that uses primesense technology. I want to use this device to extract the real world 3D coordinates of an…
Chaitanya Uttarwar
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vector subscript out of range C++ OpenCV camera calibration

I am trying Martin Peris's OpenCV stereo camera calibration code from this link (http://blog.martinperis.com/2011/01/opencv-stereo-camera-calibration.html). When I use his given camera calibration images it works fine. But when I try my images it…
CV_passionate
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Incorrect angle detected between two planes

I want to calculate the angle between 2 planes, Reference plane and Plane1. When I feed the X,Y,Z co-ordinates of pointCloud to the function plane_fit.m (by Kevin Mattheus Moerman), I get the coefficients: reference_plane_coeff: [-0.13766204…
Saania
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OpenCV stereoCalibrate parameters

I'm setting up a stereo camera system (with two cameras). I'm trying to get rotation matrix and translation vector with OpenCV in c++. I have computed matrix camera and distortion vector for each camera using cameraCalibrate opencv function. Now I'm…
Bino
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Generate subpixel accuracy disparity map in OpenCV

The purpose is to generate disparity map for a calibrated stereo images. A 3D model is projected onto a pair of calibrated stereo images (left/right) by using OpenCV function cv::projectPoints(). The cv::projectPoints() gives points on the 2D image…
linzhang.robot
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