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manavkataria / tangible-images

Images you can Touch and Feel
http://tangible-images.googlecode.com
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beginning of depth detection #11

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
+Successfully implemented canny edge detection.
+Treory revision of depth detection. Below is two prominant techniques for
depth detection:
1> DEPTH DETECTION OF LIGHT FIELD
   This algorithm measures the degree of focus of different planes by
calculating the ratio of high frequencies to the low frequencies. Instead
of finding the depths of different regions in the scene, we extract the
depths of different planes at which objects are located. 
2> DISPARITY ESTIMATION FOR STEREO VISION
   Stereo vision is the ability to infer information about the 3-D
structure of a scene using two images captured from different viewpoints.
Disparity estimation is the process of computing the relative depth of
objects within a scene. The higher the intensity value, the nearer is the
object to the camera.

Original issue reported on code.google.com by husainma...@gmail.com on 28 Sep 2009 at 1:05

Attachments:

GoogleCodeExporter commented 9 years ago 
Folks, we would be working towards Paper#2 "Disparity Estimation for Stereo 
Vision"
for Depth Detection.

Well summarized Husain. TODO:
(1) Upload Result:
+ input and output images from the demo, and
+ output matrix

(2) Run algorithm on atleast 1 more pair of stereo images and upload the result.

Neelam and I would render haptics using the output matrix on Falcon. See 
issue#12

Original comment by manavkataria on 29 Sep 2009 at 5:37

GoogleCodeExporter commented 9 years ago 
Husain, tasks after quickly completing comment#1:

+ Understand the depth-detection implementation in matlab and explain to the 
group.
(define your own reasonable deadline for this: Preferably by Friday, 2nd eve. I 
will
be busy with Nexus on 3rd & 4th.)

+ Find more stereo-images, upload them here. Contact SC / VIP PhDs if needed.

Original comment by manavkataria on 29 Sep 2009 at 5:45

GoogleCodeExporter commented 9 years ago 
Depth Detection Demo Matlab central:
http://www.mathworks.com/products/viprocessing/demos.html?
file=/products/demos/shipping/vipblks/vipstereo.html

Original comment by manavkataria on 30 Sep 2009 at 12:34

GoogleCodeExporter commented 9 years ago 
Hi Hussain,

You wanted me to upload some stereo images for depth detection...please find the
attachment(s). Hope these will serve your purpose.

Original comment by jhelum.h...@gmail.com on 6 Oct 2009 at 9:31

Attachments:

GoogleCodeExporter commented 9 years ago 
Jhelum, thanks! 

Stereo2.jpg and 
Stereo Flowers06 pair.jpg are the kind we are looking for. Others are not 
stereo unless 
we have a separate corresponding pair.

Original comment by manavkataria on 6 Oct 2009 at 9:54

GoogleCodeExporter commented 9 years ago 
Here are some more images...check them out...

Original comment by jhelum.h...@gmail.com on 9 Oct 2009 at 8:30

Attachments:

GoogleCodeExporter commented 9 years ago 
done.

Original comment by manavkataria on 26 Oct 2009 at 2:31