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Questions tagged [disparity-mapping]

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Difference between binary labeling and multi-labeling in energy minimization via graph-cut

I am working on graph cut to create disparity map from a stereo system but I still have problem to understand binary and multi-labeling I guess that they are both reduced to a binary problem but I can't see the difference Thanks
Raziel
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Does the LIBELAS depend on camera parameters?

I want to use LIBELAS(Library for Efficient Large-scale Stereo Matching) to generate the disparity map. My stereo camera has 25 cm baseline and 12mm focal length. I cannot generate sufficient disparity map for my stereo images? Could you please…
omrn
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Rectificated images doesn't complain epipolar geometry

I am trying to obtain a disparity map from a homemade stereo camera setup. The baseline is 125mm and both cameras are fixed to a 3D-printed support. I've previously calibrated the cameras with 15 images of a checkboard pattern of 80mm square size …
agregorio
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Does my Disparity Map look right?

Disparity map of two rectified images Point cloud of the disparity map (side view) Looking to the point cloud from the front it seems to be good, but as you can see the point cloud is consisting from many slices... It seems that something is wrong…
Mirnyy
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Computer Vision: How the shape and the size of the window affect the disparity?

I'd like someone to kindly explain to me how square windows and rectangular windows may affect the computation of the disparity map, and here I'm talking about a fixed size. I have two images of this object taken from SIR (Random dot pattern on…
user3691200
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Disparity map from foreground masked images

I am trying to extract the disparity map of foreground objects in an image. The foreground objects are extracted using color and the final purpose is to determine the coordinates of the extracted objects. Below is the masked left image of the view…
Mahdi Chamseddine
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Stereo Vision for Obstacle Detection

I'm working on stereo vision project with Halcon/NET. My project is to scanning the surface of a metal plate. Is it possible to detect small hole(1-3mm) on it with stereo vision?
samydoyle
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Convert Matlab disparity image from single precision to uint8

I need to save the disparity image to my disk. The data type of the disparity image is single precision and the disparity range is [0 128]. While using imwrite(disparityMap,file_name), the saved image appears to be binary.
Tanvir
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Creating Disparity Maps Opencv

I am trying to create a Disparity Map for rectified stereo images using OpenCV import numpy as np import cv2 from matplotlib import pyplot as plt imgL = cv2.imread('C:/Users/Praveen/Pictures/im2.png',0) imgR =…
Praveen
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Relationship between depth resolution and baseline of a stereo vision system

I have two stereo pairs with different baselines. One with 150 mm and the other with 500 mm. I need to find out the working range (in meters) for both the setups. I use triangulation to generate 3D points from disparity maps. I know already that…
Beginner_In_Image_Processing
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Search Range in Disparity Map

While calculating disparity map from two stereo images using OpenCv stereoSBM function how can we set up the search range and what implications does it have on disparity map and depth values so generated.
Optimus 1072
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Calculate baseline distance between 2 cameras (images)

I want to estimate the depth map between left and right images from "http://perso.lcpc.fr/tarel.jean-philippe/syntim/paires/GrRub.html". I understand that I must first calculate depth from disparity using formula Z = B * F/d The data set…
Priyamvadha Krishnakumar
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How to detect Dynamic Obstacles in point clouds

I want to implement stereo vision in a robot. I have calculated disparity map and point clouds. now I want to detect Dynamic Obstacles in scene. Can anyone help me please? Best Regards
omrn
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Native library for stereo-images and computing disparity/depth map

For a more complex project, I need to compute the approximate, relative distances of objects from two images (from stereo-cameras). Practically what this neat tutorial explains:…
DragonGamer
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Disparity of same center o ftwo images

I use Raspberry Pi with python2. I'm trying to calculate the disparity of two images captured by the left and right cameras. But I don't know what code should I use. All I want to do is make python using the target center of two images(disparity)…
李國維
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