IPB

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
Enceladus the movie, A DEM derived from a stereo pair
Bjorn Jonsson
post Apr 13 2008, 07:22 PM
Post #1


IMG to PNG GOD
****

Group: Moderator
Posts: 1449
Joined: 19-February 04
From: Near fire and ice
Member No.: 38



I now have a greatly improved version of the Enceladus DEM mentioned near the end of this thread.

I used this new DEM to do a 951 frame flyby animation. The field of view is 40 degrees and we get as close as ~140 km from the surface. Vertical relief is exaggerated by a factor of 2. The animation requires the DivX codec. It can be downloaded here (5.6 MB):

http://www.mmedia.is/bjj/misc/css_stuff/an...el_dem_anim.avi

A sample frame from the animation:

Attached Image


It should be noted that a lot of the small scale details are from the texture map draped over the DEM and not from the DEM itself. The resolution of the DEM is several times lower than the resolution of the images used to create the DEM. This is what the DEM looks like when the texture map is omitted:

Attached Image


Not nearly as pretty as the sample frame above but at least it's obvious what this is.

The entire DEM looks like this:

Attached Image


The altitude range is ~4 km. The quality of this DEM is somewhat lower than the quality of the Iapetus DEM mentined here a few times in the past several weeks (in particular here). However, it's much better than the Mimas DEM mentioned in this thread.

This is an elevation profile through one of the craters (distances are approximate):


Attached Image


And the profile's location:

Attached Image
Go to the top of the page
 
+Quote Post
nprev
post Apr 13 2008, 11:07 PM
Post #2


Senior Member
****

Group: Moderator
Posts: 6830
Joined: 8-December 05
From: Los Angeles
Member No.: 602



Bjorn...major WOW!!! blink.gif That animation was just amazing, beyond professional quality!


--------------------
A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
Go to the top of the page
 
+Quote Post
tedstryk
post Apr 17 2008, 12:54 AM
Post #3


Interplanetary Dumpster Diver
****

Group: Moderator
Posts: 4159
Joined: 17-February 04
From: Powell, TN
Member No.: 33



I totally missed this. That is a really amazing clip!


--------------------
Go to the top of the page
 
+Quote Post
DrShank
post Apr 22 2008, 03:51 AM
Post #4


Member
***

Group: Members
Posts: 158
Joined: 6-March 07
From: texas
Member No.: 1828



here is a clip from a similar film i made last year. alas the .mov is far too large to post here but i am working on a website to post a bunch of these things. this one was an early product before a few kinks were worked out

paul
Attached thumbnail(s)
Attached Image
 


--------------------
Go to the top of the page
 
+Quote Post
DrShank
post Apr 22 2008, 03:54 AM
Post #5


Member
***

Group: Members
Posts: 158
Joined: 6-March 07
From: texas
Member No.: 1828



here is a better view
Attached thumbnail(s)
Attached Image
 


--------------------
Go to the top of the page
 
+Quote Post

Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 24th April 2014 - 01:36 PM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is a project of the Planetary Society and is funded by donations from visitors and members. Help keep this forum up and running by contributing here.