stereo-3d Questions
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I am trying to calibrate camera using OpenCV tools according to the following this guide.
The problem is that function findChessboardCorners cannot find any chessboard on images I tried. I used a ...
Seema asked 10/8, 2014 at 21:31
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I'm running into a bit of a problem when trying to run multiple render windows in a Python VTK application I'm writing. The application is an attempt to render a 3D model in two separate views for ...
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I've put together a stereo cam rig and am having trouble using it to produce a good disparity map. Here's an example of two rectified images and the disparity map I produced with them:
As you ca...
Townscape asked 12/4, 2014 at 13:5
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I am doing a research in stereo vision and I am interested in accuracy of depth estimation in this question. It depends of several factors like:
Proper stereo calibration (rotation, translation a...
Exhale asked 31/3, 2014 at 14:41
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I am new to stereo matching. I couldn't understand the concept of disparity. What are a disparity map and disparity image, and what is the difference between them?
Swink asked 12/7, 2013 at 4:8
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I am currently working on a 3d reconstruction of X-Ray images, and therefore I need to stereo-rectify images of two views before I can match some features with help of the epilines. I am using Open...
Meldameldoh asked 12/11, 2013 at 9:12
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I have computed the Fundamental Matrix between two cameras using opencv's findFundamentalMat. Then I plot the epipolar lines in the image. And I get something like:
Now, I tried to get the pose f...
Schoolroom asked 16/12, 2013 at 15:5
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I'd initially posted this on the OpenCV forums, but unfortunately, I didn't get too many views/replies so I'm posting here with the hopes that someone might have a direction to please suggest?
I a...
Scirrhous asked 6/10, 2013 at 4:53
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I've been trying to rectify and build the disparity mappping for a pair of images using OpenCV stereoRectifyUncalibrated, but I'm not getting very good results. My code is:
template<class T>...
Kinny asked 25/6, 2012 at 13:59
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I am looking for a method or an algorithm which would allow me to recognize and pair sets of points from two different images, for the purpose of stereo vision.
The attached picture presents what...
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I have some code that works out all of the parts up to calculating values with cv::stereoRectifyUncalibrated. However, I am not sure where to go from there to get a 3D Point cloud from it.
I have ...
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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 th...
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Given a naive take on 3D graphics rendering it seems that stereo 3D rendering should be essentially transparent to the developer and be entirely a feature of the graphics hardware and drivers. Wher...
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I am facing a problem in understanding what the new camera matrix in cvUndistortpoints. We get a camera matrix of camera in stereocalibration itself and why we have to pass a new cameramatrix in cv...
Heddie asked 27/5, 2012 at 11:28
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I have an OpenGL application that outputs stereoscopic 3D video to off-the-shelf TVs via HDMI, but it currently requires the display to support the pre-1.4a methods of manually choosing the right f...
Arezzini asked 11/8, 2011 at 21:20
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I am trying to implement the (relatively simple) linear homogeneous (DLT) 3D triangulation method from Hartley & Zisserman's "Multiple View Geometry" (sec 12.2), with the aim of implementing th...
Analysand asked 8/5, 2012 at 16:42
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I've been asked to implement an edge-based disparity map, but I fundamentally don't understand what a disparity map is. What is the definition of a "disparity map"?
Alded asked 7/9, 2011 at 16:26
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I have a cheap stereo camera rig that I use for diving. Sometimes each camera white balances or sets exposure differently. Example:
http://www.chrisevans3d.com/temp/forums/left.jpg
http://www.chr...
Irritating asked 30/6, 2011 at 10:8
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i need your help about this issue badly. i am trying to model a simple scene in 3d out of 2d images. i am using 2 images (left and right-the famous tsukuba scene)
http://www.cc.gatech.edu/classes/A...
Scribble asked 19/7, 2011 at 8:11
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Is there a way to calculate the distance to specific object using stereo camera?
Is there an equation or something to get distance using disparity or angle?
Ctenidium asked 5/6, 2011 at 7:45
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I’m trying to make a very simple application which would display different images on each eye. I have Asus VG236H monitor and NVIDIA 3D Vision kit, the stereo 3D shutter glasses. The I’m using C#, ...
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can anyone provide a good sample program on OpenCV depth maps or distance calculation?
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Is there a simple to implement way of merging depth maps? I take pictures of a statue from 3 different positions .Then each stereo pair produces a disparity map.I re-project it to depth using trian...
Numb asked 17/4, 2011 at 6:48
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I'm trying to write some code that will calculate the fundamental matrix to determine the relationship between stereo images. I started with the Hartley and Zisserman book that most people recommen...
Peraea asked 4/4, 2011 at 1:54
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I'm going to set up some devices to perform real-time 3D motion tracking. My first idea to do so is to use a pair of cameras to take stereo image and calculate the depth map to get the 3D dat...
Costly asked 10/9, 2009 at 21:44
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