Search found 4 matches

by JeffWitz
Sun Apr 11, 2021 6:30 am
Forum: OpenCV, Python and other image processing
Topic: DISFlow for disparity map
Replies: 9
Views: 378

Re: DISFlow for disparity map

@stereomaton Really cool, the test you perform ! Are the images you post the real size one ? I can work to drastically improve the quality. The code I made is only for fast assessment. I don't really use variational refinement and don't stop at the last scale. So there is room for improvement. If th...
by JeffWitz
Wed Mar 10, 2021 9:18 pm
Forum: OpenCV, Python and other image processing
Topic: DISFlow for disparity map
Replies: 9
Views: 378

Re: DISFlow for disparity map

Yes, my second question was for this case: the optical flow searches for changes in 2D, but sometimes it might find vertical component if the grayscale image had not enough information to decide (uniform zone, occlusion...). That's why I asked if we can constrain it. No, you can't constrain it. I'm...
by JeffWitz
Fri Feb 26, 2021 7:23 pm
Forum: OpenCV, Python and other image processing
Topic: DISFlow for disparity map
Replies: 9
Views: 378

Re: DISFlow for disparity map

Did you have a chance to play with it on Raspberry Pi? Yes of course ! For know I use it in order to register 2 images in mechanics (we call it Digital Image Correlation (DIC)). Once the flow is computed, we project it on projective tranformation in order to drive an experimental tensile test from ...
by JeffWitz
Thu Feb 25, 2021 9:53 pm
Forum: OpenCV, Python and other image processing
Topic: DISFlow for disparity map
Replies: 9
Views: 378

DISFlow for disparity map

On a simple stereo system, the stereoBM juste compute a block matching and take the horizontal displacement field find for each BM. The code is old and not optimal. There is so much more on OpenCV ! Starting with version 4.x, you can use DISFlow, which is really performant ! here the process to crea...