I try to create a Point Cloud based on the images from the KITTI stereo images dataset so then later I could estimate 3D position of some objects. Original images looks like this. What I have so ...

-- Update 2 -- The following article is really useful (although it is using Python instead of C++) if you are using a single camera to calculate the distance: Find distance from camera to object/ma...

I can compute a depth map with cv2.StereoSGBM that looks pretty good. Now I want to apply WLS filtering as described here. This answer has some info, which I follow below, but I can't quite get to ...

I'm trying to get a depth map with an uncalibrated method. I can obtain the fundamental matrix by finding correspondent points with SIFT and then using cv2.findFundamentalMat. I then use cv2.stereo...

I am trying to understand the disparity mapping functions of opencv I came across two methods cv2.StereoSGBM_create and cv2.StereoBM_create I don't quite understand the difference. Also, what are...

I am trying to find depth using a stereo camera. I created a depth map or disparity matrix which are from 0 to 255 (pixel value). Now after creating a depth map, I want to find real depth using for...

The application of Konolige's block matching algorithm is not sufficiantly explained in the OpenCV documentation. The parameters of CvStereoBMState influence the accuracy of the disparities calcula...

I get a ximgproc_DisparityWLSFilter from cv2.ximgproc.createDisparityWLSFilter(left_matcher), but I cannot get ximgproc_DisparityWLSFilter.filter() to work. The error I get is OpenCV Error: As...

I'm trying to estimate the absolute depth (in meters) from an AVDepthData object based on this equation: depth = baseline x focal_length / (disparity + d_offset). I have all the parameters from cam...

I am trying to use StereoBM to get disparity map of two images. I tried some sample code and images. They are working fine. However, when I try my own images, I got very bad map, very noisy. ...

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...

I am working on KITTI data set i am taking 2 images and finding the disparity to get 3D point cloud .The problem which i am facing is that i am not able to get a good disparity map.Most of the disp...

I am implementing stereo matching and as preprocessing I am trying to rectify images without camera calibration. I am using surf detector to detect and match features on images and try to align the...

these is my calibration code: void calibrate() { int numBoards = 10; int board_w = 6; int board_h = 9; Size board_sz = Size(board_w, board_h); int board_n = board_w*board_h; vector<vect...

I've been using the great Emgu C# wrapper for OpenCV to collect images from a home built stereo rig. Two webcams bolted down to a piece of wood, 35cm apart to hopefully let me produce depth maps in...

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?

I try to generate disparity of stereo image by using OpenCV and optimize performance by using GPU but the results of them are different. StereoSGBM initialize StereoSGBM sbm; sbm.SADWindowSize = ...

I am working on Stereo vision task and I would like to get the distance between stereo vision cameras and the object. I am using Matlab with Computer Vision System Toolbox. I have calibrated camera...

I'm trying to estimate depth from a stereo pair images with OpenCV. I have disparity map and depth estimation can be obtained as: (Baseline*focal) depth = ------------------ (disparity*SensorSiz...

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>...

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"?

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...