Comments on: 3D Vision with Stereo Disparity http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/ life, business, consulting, and computer vision Tue, 07 Feb 2012 12:43:37 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Fadel http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/comment-page-2/#comment-2021 Fadel Tue, 07 Feb 2012 12:43:37 +0000 http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/#comment-2021 i have window7 64 bit i have window7 64 bit

]]> By: Fadel http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/comment-page-2/#comment-2020 Fadel Tue, 07 Feb 2012 12:43:10 +0000 http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/#comment-2020 hi, please i need help, when i run demo, i get this error, Error in ==> modefilt2 at 34 f = modefilt2_mex(img,win,ignore); Error in ==> stereo at 48 fdsp = modefilt2(dsp,[win_size,win_size],2); Error in ==> demo at 10 [d p] = stereo(i1,i2, maxs); Thanks hi, please i need help, when i run demo, i get this error,

Error in ==> modefilt2 at 34
f = modefilt2_mex(img,win,ignore);

Error in ==> stereo at 48
fdsp = modefilt2(dsp,[win_size,win_size],2);

Error in ==> demo at 10
[d p] = stereo(i1,i2, maxs);

Thanks

]]> By: villett http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/comment-page-2/#comment-1994 villett Sat, 10 Dec 2011 22:49:39 +0000 http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/#comment-1994 Dear Shawn, Im working on the depth map estimation by using motion parallax, I got the motion vectors(x and y) with matlab. I'm having some problem on getting the absolute value of the horizontal component(Mvx) to get the disparity and also depth map. could you help me with this? Dear Shawn,

Im working on the depth map estimation by using motion parallax, I got the motion vectors(x and y) with matlab. I’m having some problem on getting the absolute value of the horizontal component(Mvx) to get the disparity and also depth map. could you help me with this?

]]> By: Don http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/comment-page-2/#comment-1993 Don Wed, 07 Dec 2011 22:45:42 +0000 http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/#comment-1993 <a href="#comment-1991" rel="nofollow">@Don </a> Ugg... I spoke too soon. When I run the demo.m script it segfaults... :^( I renew my plea for advice/smack upside the head. -D @Don

Ugg… I spoke too soon. When I run the demo.m script it segfaults…

:^(

I renew my plea for advice/smack upside the head.

-D

]]> By: Don http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/comment-page-2/#comment-1992 Don Wed, 07 Dec 2011 22:39:49 +0000 http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/#comment-1992 <a href="#comment-1986" rel="nofollow">@Poo </a> Hey dude, I was having compiler trouble in windows. One of the non-windows specific things I had to do was in line 386 of BgEdgeDetect.cpp, the “pow” command is used and my compiler complains that it is ambiguous because it doesn’t know what type the numbers are inside it. So change the line from this: w = pow(2,(-2*WL_))*factorial(2*WL_)/(factorial(WL_-i)*factorial(WL_+i)); to this: w = pow(2.,(-2*WL_))*factorial(2*WL_)/(factorial(WL_-i)*factorial(WL_+i)); notice there is a decimal point added after the first “2? . Now it knows to not treat 2 as an integer or whatever it was thinking. If you haven't tried this yet maybe it will help! -D @Poo

Hey dude, I was having compiler trouble in windows. One of the non-windows specific things I had to do was in line 386 of BgEdgeDetect.cpp, the “pow” command is used and my compiler complains that it is ambiguous because it doesn’t know what type the numbers are inside it. So change the line from this:

w = pow(2,(-2*WL_))*factorial(2*WL_)/(factorial(WL_-i)*factorial(WL_+i));

to this:

w = pow(2.,(-2*WL_))*factorial(2*WL_)/(factorial(WL_-i)*factorial(WL_+i));

notice there is a decimal point added after the first “2? . Now it knows to not treat 2 as an integer or whatever it was thinking.

If you haven’t tried this yet maybe it will help!

-D

]]> By: Don http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/comment-page-2/#comment-1991 Don Wed, 07 Dec 2011 22:38:05 +0000 http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/#comment-1991 <a href="#comment-1990" rel="nofollow">@Don </a> OH I got it to work. So what I did was: 1. change all of those slashes to match windows filename convention 2. open all of the source files in visual studio. for many of them it a message pops up about some kind of file format inconsistency, do I want it fixed. Click yes, save file, exit. 3. in line 386 of BgEdgeDetect.cpp, the "pow" command is used and my compiler complains that it is ambiguous because it doesn't know what type the numbers are inside it. So change the line from this: w = pow(2,(-2*WL_))*factorial(2*WL_)/(factorial(WL_-i)*factorial(WL_+i)); to this: w = pow(2.,(-2*WL_))*factorial(2*WL_)/(factorial(WL_-i)*factorial(WL_+i)); notice there is a decimal point added after the first "2" . Now it knows to not treat 2 as an integer or whatever. it now compiles successfully in windows using the compile_edison_wrapper_mex.m script in matlab! -D @Don

OH I got it to work.

So what I did was:
1. change all of those slashes to match windows filename convention
2. open all of the source files in visual studio. for many of them it a message pops up about some kind of file format inconsistency, do I want it fixed. Click yes, save file, exit.
3. in line 386 of BgEdgeDetect.cpp, the “pow” command is used and my compiler complains that it is ambiguous because it doesn’t know what type the numbers are inside it. So change the line from this:

w = pow(2,(-2*WL_))*factorial(2*WL_)/(factorial(WL_-i)*factorial(WL_+i));

to this:

w = pow(2.,(-2*WL_))*factorial(2*WL_)/(factorial(WL_-i)*factorial(WL_+i));

notice there is a decimal point added after the first “2″ . Now it knows to not treat 2 as an integer or whatever.

it now compiles successfully in windows using the compile_edison_wrapper_mex.m script in matlab!

-D

]]> By: Don http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/comment-page-2/#comment-1990 Don Wed, 07 Dec 2011 22:22:08 +0000 http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/#comment-1990 Hi Shawn, I too am trying to compile this code but am having trouble. I have located the updated website for EDISON: http://coewww.rutgers.edu/riul/research/code/EDISON/ and put the segm\ and edge\ directories where the compile_edison_wrapper.m expects them to be. I was getting an error about mac vs windows file format... I'm on windows and I think I needed to change the "/" to "\" so I did: mex -O edison_wrapper_mex.cpp ... segm\ms.cpp segm\msImageProcessor.cpp segm\msSysPrompt.cpp segm\RAList.cpp segm\rlist.cpp ... edge\BgEdge.cpp edge\BgImage.cpp edge\BgGlobalFc.cpp edge\BgEdgeList.cpp edge\BgEdgeDetect.cpp Also in BgEdgeDetect.h, I changed the "/" to "\" in the #include statements. I still get this error from Matlab: edison_wrapper_mex.cpp c:\users\donald j. natale iii\desktop\lankton range image\lankton_stereo\msseg\edge\BgEdgeList.h : error C4335: Mac file format detected: please convert the source file to either DOS or UNIX format edison_wrapper_mex.cpp(134) : warning C4018: '<' : signed/unsigned mismatch edison_wrapper_mex.cpp(168) : warning C4018: '<' : signed/unsigned mismatch edison_wrapper_mex.cpp(179) : warning C4018: '<' : signed/unsigned mismatch I could really use advice or maybe a smack upside the head... am I doing something silly here? -D Hi Shawn,

I too am trying to compile this code but am having trouble. I have located the updated website for EDISON:

http://coewww.rutgers.edu/riul/research/code/EDISON/

and put the segm\ and edge\ directories where the compile_edison_wrapper.m expects them to be.

I was getting an error about mac vs windows file format… I’m on windows and I think I needed to change the “/” to “\” so I did:

mex -O edison_wrapper_mex.cpp …
segm\ms.cpp segm\msImageProcessor.cpp segm\msSysPrompt.cpp segm\RAList.cpp segm\rlist.cpp …
edge\BgEdge.cpp edge\BgImage.cpp edge\BgGlobalFc.cpp edge\BgEdgeList.cpp edge\BgEdgeDetect.cpp

Also in BgEdgeDetect.h, I changed the “/” to “\” in the #include statements.

I still get this error from Matlab:

edison_wrapper_mex.cpp
c:\users\donald j. natale iii\desktop\lankton range image\lankton_stereo\msseg\edge\BgEdgeList.h : error C4335: Mac file format detected: please convert the source file to either DOS or UNIX format
edison_wrapper_mex.cpp(134) : warning C4018: ‘<' : signed/unsigned mismatch
edison_wrapper_mex.cpp(168) : warning C4018: '<' : signed/unsigned mismatch
edison_wrapper_mex.cpp(179) : warning C4018: '<' : signed/unsigned mismatch

I could really use advice or maybe a smack upside the head… am I doing something silly here?

-D

]]> By: Poo http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/comment-page-2/#comment-1986 Poo Mon, 05 Dec 2011 18:00:39 +0000 http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/#comment-1986 I were trying to run code on the lankton_stereo but i can not complie edison_wrapper_mex (mac). Can you help me pls? I were trying to run code on the lankton_stereo but i can not complie edison_wrapper_mex (mac). Can you help me pls?

]]> By: taozi http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/comment-page-2/#comment-1920 taozi Thu, 22 Sep 2011 09:32:19 +0000 http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/#comment-1920 Hi Shawn, I am a chinese student,sorry for my bad english, i hope that you can understand it. I have read your WebSite recently, I am trying to get the depth map from a real pair L-R images using the binocular vision stereo matching algorithm,I have download you matlab code and run it ,bu when i use it to another picture pairs, it doesn't work perfectly,the image was download from the website, http://vision.middlebury.edu/stereo/,even the same Tsukuba image, it doesn't work the same, even couldn’t see the outlines, i don't know why, can you tell me where is the difference? Now i really want to do my subject well, but i have no ideo, i don't what should i do? I really hope that you can help me, when i can get the disparity map, if i want to get the depth map, is the camera focus and the baseline distance i need know, how could i convert these data to pixel,you know,the focus and the baseline is measured by meter, but the disparity is measured by pixel,how could i convert them? and there is another data that i need to know? or something must be done before i could get the depth map. Best regards. thaks again. Hi Shawn, I am a chinese student,sorry for my bad english, i hope that you can understand it. I have read your WebSite recently, I am trying to get the depth map from a real pair L-R images using the binocular vision stereo matching algorithm,I have download you matlab code and run it ,bu when i use it to another picture pairs, it doesn’t work perfectly,the image was download from the website,
http://vision.middlebury.edu/stereo/,even the same Tsukuba image, it doesn’t work the same, even couldn’t see the outlines, i don’t know why, can you tell me where is the difference? Now i really want to do my subject well, but i have no ideo, i don’t what should i do? I really hope that you can help me, when i can get the disparity map, if i want to get the depth map, is the camera focus and the baseline distance i need know, how could i convert these data to pixel,you know,the focus and the baseline is measured by meter, but the disparity is measured by pixel,how could i convert them? and there is another data that i need to know? or something must be done before i could get the depth map. Best regards. thaks again.

]]> By: Vimal http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/comment-page-2/#comment-1897 Vimal Fri, 02 Sep 2011 09:37:02 +0000 http://www.shawnlankton.com/2007/12/3d-vision-with-stereo-disparity/#comment-1897 Hi shawn some picture work perfectly but other pictures not. I calibrated that 20 pixel is the maximum disparity still not working. Can i get another pair of images? Hi shawn some picture work perfectly but other pictures not. I calibrated that 20 pixel is the maximum disparity still not working. Can i get another pair of images?

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