Search found 14 matches

by dcolemans
Tue Aug 07, 2018 9:32 pm
Forum: Technical Discussion
Topic: Linear Regression Line Following vs Glare
Replies: 2
Views: 199

Re: Linear Regression Line Following vs Glare

Thanks Kwabena for your usual quick and helpful response.

Dave
by dcolemans
Mon Aug 06, 2018 4:40 pm
Forum: Technical Discussion
Topic: Linear Regression Line Following vs Glare
Replies: 2
Views: 199

Linear Regression Line Following vs Glare

I understand that in the new firmware (that comes with IDE 2.0.0) there are improvements in handling glare. Are there additional commands or parameters that pertain to this? Are there any examples of what one might do to suppress glare and improve chances of following a yellow line?
by dcolemans
Wed May 09, 2018 9:57 am
Forum: General Topics
Topic: Examples Greyed out in IDE
Replies: 4
Views: 301

Re: Examples Greyed out in IDE

You are right. The three directories had NOT been copied to the home directory. My main PC is Windows 7, but it has gotten a bit funky with permissions and such. I copied them in and now I see Examples. Thanks so much for the spot-on help.

Dave
by dcolemans
Mon May 07, 2018 12:21 pm
Forum: General Topics
Topic: Examples Greyed out in IDE
Replies: 4
Views: 301

Examples Greyed out in IDE

This is probably a dopey question, but how do I get the Examples to not be grayed out under the File tab in the IDE. It's this way in the old IDE and now in the new 1.9.0 one also. ???

Dave
by dcolemans
Wed Nov 29, 2017 1:56 am
Forum: General Topics
Topic: Light reflects
Replies: 6
Views: 1393

Re: Light reflects

Cool. Putting them under the lens up into the lens holder will be neater, though not adjustable, nor easily removable. Users will have to be sure to put it in the right orientation - maybe hold it up to the sky first to see which end is up.
by dcolemans
Tue Nov 28, 2017 8:31 pm
Forum: General Topics
Topic: Light reflects
Replies: 6
Views: 1393

Re: Light reflects

To follow up on our experiment in Oakland with the polarizing filter to suppress glare... I used a lens cap, punched a hole, then (crudely) cut out a small circle of polarizing film and super glued it in. It works. Our rovers can follow yellow lines OUTSIDE (though in the shade) where they never cou...
by dcolemans
Fri Sep 29, 2017 12:34 pm
Forum: General Topics
Topic: IDE not getting target file from Windows Explorer
Replies: 7
Views: 1599

Re: IDE not getting target file from Windows Explorer

No hurry on the fix for me. I'l wait for the next IDE release.

Dave
by dcolemans
Fri Sep 29, 2017 12:01 pm
Forum: General Topics
Topic: IDE not getting target file from Windows Explorer
Replies: 7
Views: 1599

Re: IDE not getting target file from Windows Explorer

Thanks Kwabena. You guys are the best!

Dave
by dcolemans
Thu Sep 28, 2017 11:50 pm
Forum: General Topics
Topic: IDE not getting target file from Windows Explorer
Replies: 7
Views: 1599

Re: IDE not getting target file from Windows Explorer

I'm using Windows 7 and XP. The steps are these: Run the IDE and Open Python program A. Close the IDE. Using Windows Explorer, select Python program B and Drag it onto the IDE desktop shortcut icon. IDE opens with File A. Seems that the IDE Always opens the last file it knew about. Once I'm in the I...
by dcolemans
Thu Sep 28, 2017 11:44 am
Forum: General Topics
Topic: IDE not getting target file from Windows Explorer
Replies: 7
Views: 1599

IDE not getting target file from Windows Explorer

This is certainly a minor issue but one I'd like to see fixed. When I launch a program in Windows, my habit is to find the subject file in Windows Explorer and either double click (relying on the suffix file association) or drag the file to the target app on the desktop. OpenMV IDE doesn't play nice...
by dcolemans
Sat Sep 23, 2017 11:11 pm
Forum: Project Discussion
Topic: Linear Regression Line Following
Replies: 20
Views: 4928

Re: Linear Regression Line Following

I'm using dumb guy math, just finding the midpoint between x1 Left and x1 right and mapping that against 0 to 80 to an angle from -45 to +45. It works. It's an imprecise science anyway. Sometimes it "cuts the corners" a bit but that just gets you there faster.
by dcolemans
Sat Sep 23, 2017 10:44 pm
Forum: Project Discussion
Topic: Linear Regression Line Following
Replies: 20
Views: 4928

Re: Linear Regression Line Following

What do you think of the idea of getting a linear regression line on the left half of the image, saving its info, then getting another on the right side? I just had some success with that with two white tape lines about 14 inches apart. When it failed to find both, it just used the one it found. I e...
by dcolemans
Sat Sep 23, 2017 10:38 am
Forum: Project Discussion
Topic: Linear Regression Line Following
Replies: 20
Views: 4928

Re: Linear Regression Line Following

Thanks for your quick reply. I wasn't aware of the Sparkfun race. Is this the one at the Denver Maker Faire? Am I correct in thinking you are entering the Speed Demon category, large figure 8 track with hay bale sides, no painted center line, and OBSTACLES? One of the difficulties might be seeing pa...
by dcolemans
Fri Sep 22, 2017 5:50 pm
Forum: Project Discussion
Topic: Linear Regression Line Following
Replies: 20
Views: 4928

Re: Linear Regression Line Following

Hi Kwabena, I'm having pretty good results using your Linear Regression function to follow a single line. For head-to-head racing however, I'd like to be able to see Two lines, and be able to drive down the center (vanishing point perhaps), then move to the side for passing. I think that in the Sept...

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