3d-reconstruction Questions
0
Like the question says, I am looking for a complete, minimal, working example of the structure from motion (aka 3d reconstruction) pipeline.
Right away let me say I do not have the camera paramete...
Nanci asked 28/11, 2019 at 4:14
2
For example, I want to choose two points from all the point clouds, and draw a line between them. I'm using Meshlab to deal with .ply files but I don't know how to accomplish this. Can I do this us...
Bollworm asked 18/11, 2017 at 11:51
6
Solved
If I take a picture with a camera, so I know the distance from the camera to the object, such as a scale model of a house, I would like to turn this into a 3D model that I can maneuver around so I ...
Audet asked 9/10, 2011 at 17:55
3
I am trying understand basics of 3d point reconstruction from 2d stereo images. What I have understood so far can be summarized as below:
For 3d point (depth map) reconstruction, we need 2 images ...
Abnormal asked 26/10, 2018 at 13:38
1
Solved
Problem statement
I am trying to reproject 2D points to their original 3D coordinates, assuming I know the distance at which each point is. Following the OpenCV documentation, I managed to get it ...
Valeda asked 10/7, 2018 at 18:37
1
When I convert depth map to 3D point cloud, I found there is a term called scaling factor. Can anyone give me some idea what scaling factor actually is. Is there any relationship between scaling fa...
Ube asked 1/4, 2018 at 14:15
2
Solved
I'm trying to calculate a new camera position based on the motion of corresponding images.
the images conform to the pinhole camera model.
As a matter of fact, I don't get useful results, so I try...
Father asked 19/5, 2013 at 20:21
2
I would like to verify that my understanding of the fundamental matrix is correct and if it's possible to compute F without using any corresponding point pairs.
The fundamental matrix is calculate...
Imago asked 16/7, 2014 at 14:50
1
I'm very new to the Computer Vision field and am fascinated by it. I'm still learning the concepts, and one thing that really caught my interest was Point Clouds and 3D reconstructions using images...
Chery asked 26/1, 2016 at 15:37
2
I've been trying to implement a simple SFM pipeline in OpenCV for a project and I'm having a bit of trouble.It's for uncalibrated cameras so I don't have a camera matrix (Yes, I know it's going to ...
Herminahermine asked 25/4, 2014 at 9:35
0
I have reconstructed two frames using 5-point essential matrix, for sequential frames I am using PNP to get the camera pose before reconstructing the matches.
When I use video frames progressing t...
Massasauga asked 27/8, 2015 at 17:11
1
Solved
There are many posts about 3D reconstruction from stereo views of known internal calibration, some of which are excellent. I have read a lot of them, and based on what I have read I am trying to co...
Envious asked 15/7, 2015 at 12:56
2
I am doing a project in opencv to detect obstacle in the path of a blind person using stereo calibration. I have calculated the disparity map correctly. Now to find the distance of obstacle from th...
Audette asked 9/12, 2014 at 9:4
1
Solved
I am working in Matlab and I have a 3d matrix with dimensions 384x512x160, which is made of 384x512 slices.
How can I plot data like that?
Swap asked 26/12, 2014 at 16:45
3
How can I create minimal OOBB for given points? Creating AABB or sphere is very easy, but I have problems creating minimal OOBB.
[edit]
First answer didn't get me good results. I don't have huge ...
Storebought asked 31/5, 2011 at 14:36
1
I want to calculate depth information from 2 images from a moving camera. Using Sensor.TYPE_ROTATION_VECTOR I have quaternions for both images as well as the relative quaternoin from Img1 to Img2. ...
Ambiversion asked 24/11, 2014 at 21:9
1
Solved
I've already computed the Fundamental Matrix of a stereo pair through corresponding points, found using SURF. According to Hartley and Zisserman, the Essential Matrix is computed doing:
E = K.t() ...
Barriebarrientos asked 29/5, 2014 at 21:50
2
Say I plan to use OpenCV for 3D reconstruction using a stereo approach...and I do not have any special stereo camera but only webcams.
1.)How do I build a cheap stereo setup using a set of web cam...
Abdomen asked 16/11, 2011 at 4:23
1
Solved
I am using this legacy code: http://fossies.org/dox/opencv-2.4.8/trifocal_8cpp_source.html
for estimating 3D points from the given corresponding 2D points from 3 different views. The problem I fac...
Concertino asked 17/2, 2014 at 11:31
5
is it possible to construct a 3d model of a still object if various images along with depth data was gathered from various angles, what I was thinking was have a sort of a circular conveyor belt wh...
Waldemar asked 4/7, 2011 at 10:25
3
OpenCV contains a lot of support for 3D reconstruction from stereo cameras. In my case i have two cameras, and I want to know 3D coordinates of some point.
What i have:
pixel coordinates of poi...
Jenaejenda asked 24/5, 2012 at 20:16
3
I'm new in this field and I'm trying to model a simple scene in 3d out of 2d images and I dont have any info about cameras. I know that there are 3 options:
I have two images and I know the model...
Melodie asked 26/1, 2012 at 22:43
1
Project: 3D face reconstruction
Input: 2D frontal face Image Output: 3D face Reconstruction and expression simulation Platform: Matlab or Opencv cpp.
I found out after study that 3D Morphable Mod...
Cantone asked 27/12, 2012 at 9:52
2
We have a .NET 4.0 C# WPF, machining simulation application. Right now we are stuck since we have to generate a 3D surface (mesh generation) from a point cloud. We have been searching, goggling, te...
Soldiery asked 28/4, 2011 at 9:48
2
Solved
I am trying to reconstruct 3D-Coordinates from the 2D-Pixel-Coordinates in a Camera Picture using a side condition (in MatLab). I do have extrinsic and intrinsic camera parameters.
Using homogenou...
Magnanimous asked 4/7, 2012 at 18:33
1 Next >
© 2022 - 2024 — McMap. All rights reserved.