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<div>Hi,</div>
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<div>I've been reading about the program your working on, Gmsh, and was wondering if it had the functions I need for a project I'm working on:<br clear="all"><br>I'm trying to create a 3D graph to represent an image and the distance that image is away from a source. I was looking at your GLT program to do this. I was wondering if your Gmesh program had the necessary functions I needed to do this? If so, can you point me in the right direction on what the functions I need would be? Below I described a little more in depth of what I'm trying to do.
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<div>First, I'll give you a little detail on our overall project so you have a better idea of what I'm<br>dealing with.<br><br>We're trying to measure the distance of an object using two cameras. Two<br>identical cameras are positioned near each other with a separation
<br>distance and focusing angle.<br><br>The Image-Processing Computer applies filters to conform the images so<br>that meaningful features stand out in contrast to non-meaningful features<br>(i.e. shadows, textures, glare, and reflections). The computer uses a
<br>vast array of image-processing algorithms to find key features in the<br>images. Cross-correlation is performed between the features in both<br>images to determine the line-of-site angle and separation distance. With
<br>that found, triangulation is performed to determine the distance that an<br>object(s) is away from the cameras.<br>-------------------------------------<br>Now, once we have determined the distance, we want to have a 3D graph
<br>display the object's distance away from the camera (part where I'd like to use Gmesh), as they come into focus. (i.e. The graph will be continually updating at 10 frames/sec along<br>with the cameras) I have attached a general 3D graph .bmp file to show you
<br>kinda what I'm looking for. (Obviously, the graph won''t portrude negative as the .bmp file since the camera only look in one direction)<br><br>What I'm thinking is I will basically take in two parameters.<br><br> 1) The coordinates of the edge detected (horizontal and vertical pixel
<br>location). Edges won't be detected in the entire area ( i.e. a wall<br>focused in too closely will ideally show no edges). The graph will<br>only be concerned with areas that edges were detected.<br><br> 2) The other parameter that needs to be taken in is the computed
<br>distance from the cameras of the detected edge. This is the parameter <br>that will determine how far the graph protrudes out in the z direction.<br><br><br>Ideally, I would like for portions of the graph to change colors
<br>corresponding to a certain distance detected (i.e. 0-1 feet red, 1-2 feet <br>orange, etc...).<br><br>Also, something that isn't needed (but would make the graph look a lot<br>better), is if I could use some interpolation functions so areas that
<br>were encompassed by edges would protrude out, too, instead of just the <br>edges.<br><br>Sorry about the length of this email. I just wanted to give you a good<br>idea of what I'm looking for.<br><br>I also attached a picture ("
picture2.bmp") that had gone through an edge<br>detection program. The white lines are detected edges. Everywhere else <br>in the image now has a pixel intensity of 0.<br><br>I'm looking for a library to help me accomplish all or most of these
<br>things listed with the 3D graph. I am an amateur at computer programming </div>
<div>, so the simpler the better (I'm an electrical engineering major, we don't get a chance to learn too much about how to program). Anything you can help me with I would really appreciate.</div>
<div><br>Thanks a lot for your time and I'll look forward to your response. <br clear="all"><br>-- <br>Sincerely,<br><br>Jacob Chrzanowski<br><br>Electrical Engineering Student, NDSU<br><a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:jmchrz@gmail.com" target="_blank">
jmchrz@gmail.com </a><br>(701) 866-3120 </div></div></div>