IPB

Welcome Guest ( Log In | Register )

6 Pages V  « < 4 5 6  
Reply to this topicStart new topic
Juno perijove 4, February 2, 2017
Sean
post Jun 4 2017, 07:36 PM
Post #76


Member
***

Group: Members
Posts: 520
Joined: 10-November 15
Member No.: 7837



Here is a Juno sketch...



--------------------
Go to the top of the page
 
+Quote Post
Bjorn Jonsson
post Sep 4 2017, 01:24 PM
Post #77


IMG to PNG GOD
****

Group: Moderator
Posts: 1929
Joined: 19-February 04
From: Near fire and ice
Member No.: 38



This is a highly speculative experimental anaglyph based on image PJ04_106:

Attached Image


The feature near the center of the anaglyph is the 'spiral' visible in the cropped image below. The 'spiral' is southwest of oval BA. The full image can be seen in this post.

Attached Image


The anaglyph is rendered from a 3D model that was created using shape from shading. The underlying assumption is that at least some of the elongated dark features within the 'spiral' are caused by cloud shadows and differences in vertical relief. These dark features look like shadows and some of the elongated, brighter features look like they might be 'walls' of clouds but this interpretation might be incorrect (this is after all a highly speculative anaglyph). The areas around the 'spiral' are probably less accurate in the anaglyph since most of the dark features there are not shadows.
Go to the top of the page
 
+Quote Post
Sean
post Dec 8 2017, 08:10 PM
Post #78


Member
***

Group: Members
Posts: 520
Joined: 10-November 15
Member No.: 7837



PJ04_106



--------------------
Go to the top of the page
 
+Quote Post
Sean
post Dec 11 2017, 03:37 PM
Post #79


Member
***

Group: Members
Posts: 520
Joined: 10-November 15
Member No.: 7837



PJ04_101 Detail






--------------------
Go to the top of the page
 
+Quote Post
JRehling
post Dec 11 2017, 04:07 PM
Post #80


Senior Member
****

Group: Members
Posts: 2027
Joined: 20-April 05
Member No.: 321



Bjorn, I love the anaglyphs.

One possibly helpful suggestion: The non-topographical variation in color of Jupiter's clouds is greater in the blue filter than in the red. So using only the red filter to generate the 3D might generate a cleaner model of the topography. No guarantees, of course!

Something I noticed by comparing the two (selecting those two color planes in Photoshop, then desaturating completely) is that it looks like the blue image was taken after the red. There's an apparent flow of just a couple of pixels in places where the swirls suggest motion. Perhaps that is a trompe l'oeil, but one of the images must certainly have been taken first. Anyway, if accurate, do what you will with that information. Now we're going from two dimensions to three and then four!

I'll attach a blink gif of those two images and other eyes may see what I'm talking about and more.
Attached thumbnail(s)
Attached Image
 
Go to the top of the page
 
+Quote Post
Gerald
post Dec 11 2017, 06:42 PM
Post #81


Senior Member
****

Group: Members
Posts: 1975
Joined: 7-December 12
Member No.: 6780



The channels are essentially mixed. You won't see any parallax or motion between color bands. Alignment offsets are an effect of processing or of real color gradients.
Go to the top of the page
 
+Quote Post
Sean
post Dec 11 2017, 08:58 PM
Post #82


Member
***

Group: Members
Posts: 520
Joined: 10-November 15
Member No.: 7837



PJ04_100



PJ04_100 detail







--------------------
Go to the top of the page
 
+Quote Post
Sean
post Dec 11 2017, 11:58 PM
Post #83


Member
***

Group: Members
Posts: 520
Joined: 10-November 15
Member No.: 7837



PJ04_099 [ after Gerald's work ]




Detail 001



Detail 002



Detail 003






--------------------
Go to the top of the page
 
+Quote Post
Sean
post Dec 12 2017, 03:07 PM
Post #84


Member
***

Group: Members
Posts: 520
Joined: 10-November 15
Member No.: 7837



PJ04_107






Details











--------------------
Go to the top of the page
 
+Quote Post
Gerald
post Dec 14 2017, 05:17 PM
Post #85


Senior Member
****

Group: Members
Posts: 1975
Joined: 7-December 12
Member No.: 6780



A first revision of the Perijove-04 animation is online on Youtube, now.

According MP4, scenes and stills on junocam.pictures webspace.

There is a pretty large time gap between two of the raws, such that there is only a small surface overlap. I tried to blend the scenes in a way, that the video looks at least roughly continuous.
Go to the top of the page
 
+Quote Post
Sean
post Dec 15 2017, 01:51 AM
Post #86


Member
***

Group: Members
Posts: 520
Joined: 10-November 15
Member No.: 7837



More tinkering with PJ04_101 [G.Eichstadt] this time using upscaled flyby still.





I've noticed that the Flickr thumbnail tends toward heavy sharpening of the image.






--------------------
Go to the top of the page
 
+Quote Post
Sean
post Dec 16 2017, 07:14 PM
Post #87


Member
***

Group: Members
Posts: 520
Joined: 10-November 15
Member No.: 7837



PJ04_107 update [G.Eichstadt]


--------------------
Go to the top of the page
 
+Quote Post
Sean
post Dec 16 2017, 08:36 PM
Post #88


Member
***

Group: Members
Posts: 520
Joined: 10-November 15
Member No.: 7837



PJ04_100 update [G.Eichstadt]


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

6 Pages V  « < 4 5 6
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 20th January 2018 - 07:18 AM
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.