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2014-11-09 19:17:48 -0600 received badge  Critic (source)
2014-09-30 13:34:59 -0600 commented question PointsClouds Generated by Reporjectimageto3D is So Bad

I recognize that you were using Yuhua Zou's program- I've tried his program and it worked perfectly (from getting good disparity map to getting good point cloud). So my suggestion is change BM/SGBM's parameters and play with them, the disparity map you got is really not good enough in order to get a good point cloud.

For me, I just use BM and results are pretty good. SGBM is too slow for me.

Hope it helps.

2014-07-14 15:39:31 -0600 commented question Depth from reprojectImageTo3D

The distance's unit is the same as the one you set for the chessboard. For example, if your chessboard corner is set as (0,0), (0,1), (0, 2)... standing for 1 cm for each block, then the unit for your result from reprojectImageTo3D is in "cm" unit. Hope it helps.

2014-07-14 15:36:07 -0600 commented question Stereo calibration baseline in meters

Hi, I got the similar Q as you got. my last two elementsi are 8.5807419247084848e-002, and 0. the baseline is exactly what I have. But one problem bothering me is the 0 --- When I use disparity map and Q matrix to do reprojectImageTo3d, the point cloud it creates looks like just a pyramid where most points gathers at top and I can see nothing from that point cloud. Have you met these situation before? thanks! I've been stuck on this problem so long...

2014-07-10 11:29:27 -0600 commented question Stereo Matching/Calibration Help

I met this problem, too. Have you figure it out? Would you mind if you could share some new progress of it? thanks a lot!

2014-07-09 13:16:26 -0600 answered a question Calculating distance from the pixel value of a disparity map

There is a good piece of code from: []

The second piece of code in the question, is the code you need to just get one point's XYZ.

2014-06-25 15:18:25 -0600 answered a question initUndistortRectifyMap - crop

My experience is that you should use the origin image after undistortion, which means don't do the cropping. The reason is after cropping, two new cropped images are not row-aligned.

2014-06-25 14:51:04 -0600 received badge  Supporter (source)