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Questions tagged [3d-reconstruction]

In computer vision and computer graphics, 3D reconstruction is the process of capturing the shape and appearance of real objects.

This tag should be used for programming issues related to 3D reconstruction in the field of computer vision.

3D reconstruction consists in creating a 3-dimensional model of an object or scene from several 2-dimensional images of it.

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3d reconstruction - projective to metric or quasi-affine to metric upgrade

I'm currently experimenting with auto-calibration and have achieved a quasi-affine reconstruction but am unsure how to proceed. Could anyone please refer me to a good resource for upgrades to metric reconstruction. I've had a look at a few (e.g.…
chibi03
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Dense 3D reconstruction using Thin-Plate Splines

I have a question about Dense reconstruction using Thin-Plate Splines interpolation. I have two images, then I detect some features using SURF (sparse reconstruction). These points were used to initialize the interpolation which seems good. So, I…
Andrew26
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Depth map merging or Point Cloud Merging

My goal is to create a single 3D point-cloud based on 2 pairs of images(AB, BC) and their projection matrices. Each image comes from the same camera (not video) with 3 distinct positions. I use the "standard process": Point matching (sift or surf),…
alvaro562003
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Point cloud: Surface Reconstruction help needed (meshlab)

I am new to meshlab and am trying to reconstruct an stl file which has a number of issues such as over 700 self-intersecting faces, non-manifold edges and flipped triangles. The part I am trying to fix is a sunglass frame just to give you some…
Maria Michelle Yepremian
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Can openCV stereo matching algorithms (stereoBM and stereoSGBM) work with verticaly rectified images

I am using opencv library to do stereo reconstruction. I am testing the rectification and stereo matching currently. I used stereoRectify function from the opencv 2.4.9 and i made it work fine. I used test data from this site…
user3847160
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Specifications of Checkerboard (Calibration) for obtaining maximum accuracy in stereo reconstruction

I have to reconstruct an object which will be placed around 1 meter to 1.5 meters away from the baseline of my stereo setup. The image captured by both cameras have high resolution (10 MP) The accuracy with which I have to detect it's position is…
Saania
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Calculating essential matrix using rotation, translation and camera parameters

I am performing 3d reconstruction using two views. Initially, I have rotation, translation and camera parameter matrices. R=[ 1 0 0; 0 0.9 -0.25; 0 0.2 0.96] t=[ 0.5; -10; 2.75]; Kleft= [-1000 0 511; 0 -1000 383; 0 0 …
user3830162
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Calculating the essential matrix from two sets of corresponding points

I'm trying to reconstruct a 3d image from two calibrated cameras. One of the steps involved is to calculate the 3x3 essential matrix E, from two sets of corresponding (homogeneous) points (more than the 8 required) P_a_orig and P_b_orig and the two…
Rasmus Ansin
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Use calibrated camera get matched points for 3D reconstruction

I am trying to compute the 3D coordinates from several pair of two view points. First, I used the matlab function estimateFundamentalMatrix() to get the F of the matched points (Number > 8) which is: F1 =[-0.000000221102386 0.000000127212463 …
JCraft
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3D reconstruction from 2 images with baseline and single camera calibration

my semester project is to Calibrate Stereo Cameras with a big baseline (~2m). so my approach is to run without exact defined calibration pattern like the chessboard cause it had to be huge and would be hard to handle. my problem is similar to this:…
3gfisch
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Distorted 3D reconstruction OPENCV + PCL (Martin Peris code)

I am using Martin Peris code for 3D reconstruction using OpenCV and PCL (link below): http://blog.martinperis.com/2012/01/3d-reconstruction-with-opencv-and-point.html Trouble point: I am having trouble with the final step in viewing the 3D…
Pratul
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Matlab plot3 not working in Stereo Calibration and Scene Reconstruction example

I am trying to implement the example given on this page link All parts of the codes are working nicely , but plot3(hAxes, x, y, z, '.', 'MarkerEdgeColor', reducedColorMap(i, :)); hold on; part of the code, which are the last lines of the…
Pruthvi P
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3D morphable model fitting to an image ( face reconstruction)

Currently I was working on fitting the morphable model to a given image (2d image to 3d model) but stucked on fitting algorithm. I have read several papers, most rely on optimization technique which is hard to implement for me,such as SNO…
user2597823
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Is there a Unity plug-in that would allow you to generate a 3d model using your webcam?

I've looked into Metaio which can do Facial 3d reconstructions video here: https://www.youtube.com/watch?v=Gq_YwW4KSjU but I'm not looking to do that. I want to simply be able to have the user scan in a small simple object and a 3d model be created…
user3542126
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reprojectImageTo3D - Where do I get Q

I am encountering some problems using OpenCV on Android without NDK. Currently I am doing a project a my university and my chefs tells me that I should avoid camera calibration when reconstructing 3D objects from 2D images. So far I have 2 2D images…
glethien
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