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Juno Perijove 20, May 29, 2019
Kevin Gill
post Jun 6 2019, 09:59 PM
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QUOTE (Brian Swift @ Jun 6 2019, 03:11 PM) *
Nice composites Kevin. How are you handling the brightness variations between images?
Lot of manual work, or do you have an algorithm?



Lots of manual alignment, blending, and brightness adjustments.
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Sean
post Jun 7 2019, 11:51 PM
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Details...















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Kevin Gill
post Jun 9 2019, 08:55 PM
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I put all my processed imagery for PJ20 (pre-photoshop) onto a Google Drive share if anyone would like a stab at enhancing them: https://drive.google.com/open?id=1sFQm2wNfn...x7k3_b_APm8QyEA
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Brian Swift
post Jun 10 2019, 06:59 AM
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I've created a couple Augmented Reality globes for PJ20, viewable with a device running iOS 12 or newer.
This uses Apple's AR Quick Look to display USDZ formatted objects.

at http://www.mandelbits.com/arworlds.html
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Sean
post Jun 10 2019, 12:12 PM
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That looks so great Brian, almost makes me wish I had Apple OS!

Kevin, thanks for sharing these 3D outputs, it's great to see your raws... can I ask what version of Blender you are using? The blend file doesn't open on version 2.79.


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Kevin Gill
post Jun 10 2019, 03:21 PM
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QUOTE (Sean @ Jun 10 2019, 07:12 AM) *
Kevin, thanks for sharing these 3D outputs, it's great to see your raws... can I ask what version of Blender you are using? The blend file doesn't open on version 2.79.


I'm using the latest 2.8 development build.
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Kevin Gill
post Jun 11 2019, 12:05 AM
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North Polar Composite.

Uses '19, '21, '23, '24, '25, '26, & '28. Rendered from the perspective of '25.


Jupiter - Perijove 20 - North Polar Composite
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JRehling
post Jun 11 2019, 01:22 AM
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Beautiful work, Kevin. It looks like there's a spiral galaxy inside that storm near the pole!
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fredk
post Jun 11 2019, 02:01 AM
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"...my God! it's full of stars!" wink.gif
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Brian Swift
post Jun 12 2019, 05:21 PM
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Following Kevin's lead, I've also upload an archive of my PJ20 files to Google Drive (~11GB)
https://drive.google.com/drive/folders/1mK1...Dn4H1IlMOS985XH

File Descriptions:
CODE

Pipeline implementation Mathematica Notebook
Juno3D.nb
Blender configuration file
JunocamLibrary.blend
Juno3D Phase 1 Outputs for Blender
Wavefront OBJs
Geometry
P##_##.obj
Material to Texture Associations
P##_##.obj.mtl
Textures. Separate Red, Green, Blue images. Decompanded, gain/debias adjusted, sRGB encoded.
P##_##b_u#.png
P##_##g_u#.png
P##_##r_u#.png
Metadata used in Phase 2
P##_##.obj.info.mx
Blender instructions to import Wavefront Object , define camera position of each framlet, set rendering camera
P##_##.obj.py
Script with Blender commands to render Phase 1 images
blenderBatch-############.sh
Blender Output
225x60 Image. EXR format because "Z" values used in Phase 2.
CP##_##_##_#.exr
Juno3D Phase 2 Outputs
Wavefront OBJs
non-tweaked non-filtered variant
RP##_##nt_nf.obj
RP##_##nt_nf.obj.mtl
RP##_##nf_u#.png
RP##_##nt_nf.obj.py
RP##_##nt_nf.obj.info.mx
tweaked geometry and contrast enhanced for EQR Map variant
RP##_##tE_ax.obj
RP##_##tE_ax.obj.mtl
RP##_##ax_u#.png
RP##_##tE_ax.obj.py
RP##_##tE_ax.obj.info.mx
Scripts that load all Phase 1 images into Blender for each variant
blender###cmd-############-nt_nf.sh
blender###cmd-############-tE_ax.sh
EQR Map produced from blender###cmd-############-tE_ax.sh script
xRP##_eqrmap_############-tE_ax_#####.png
Juno3D Experimental Outputs
Fly-under animation key-frames setup instructions for Blender
keyframes##fps-############.py
Wavefront OBJ for AR Globe
pj##tE_ax_deskNup.obj
pj##tE_ax_deskNup.obj.mtl
pj##tE_ax_deskNupDb_u#.png
pj##tE_ax_deskNup.obj.py
AR Globe USDZ format
pj##tE_ax_deskNup.usdz
Wavefront OBJ Long/Lat Grid
AGrid.obj
AGrid.obj.mtl
AGridDb_u#.png
AGrid.obj.py


11/11/2019 - re-uploaded as folder of files because there was a corruption in the previously uploaded .zip
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Brian Swift
post Jun 13 2019, 06:36 AM
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P20_37, P20_38 Stereogram Attempt.

JunoCam P20_37, P20_38 Stereogram Attempt

Overlapping portion of P20_37, P20_38 projected from midpoint between two {76287,-31190,-12311}.
Contrast enhanced. Apply Linear to sRGB conversion to get natural-ish contrast.
Top P20_37, P20_38. Bottom P20_38, P20_37.

Rendered with Blender Perspective camera set to 30 Field of View and 2048x2048 resolution.

Ratio image, P20_38 / P20_37. Going to need to think about the regional structure.
JunoCam P20_38_P20_37_ratioImage
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Bjorn Jonsson
post Jun 17 2019, 01:04 PM
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Approximately true color/contrast and enhanced versions of image PJ20_26 (Jet N5):

Attached Image
Attached Image


The spot near center is quite dark but not exceptionally so. Its brightness relative to nearby areas is comparable to e.g. the brown barges.
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Bjorn Jonsson
post Jun 19 2019, 12:03 AM
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Image PJ20_40 in approximately true color/contrast and enhanced versions:

Attached Image
Attached Image
Attached Image


Attached Image

Attached Image
Attached Image
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Gerald
post Jun 20 2019, 10:51 AM
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In the meanwhile, I've compiled a PJ20 flyby. Here is a link to the Youtube version. Here MP4, scenes, and stills.

Those are illumination-adjusted with a 5th degree polynomial illumination function over 2 parameters, designed specifically for PJ20. Nevertheless, there are obvious shortcomings near the limb resulting in brightness fluctuations in the flyby movie by auto-exposure. I may eventually review this more globally, and derive a 3 parameter solution, but I can't spend too much time on this question in the very short run. Review will probably take place in a few weeks.
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Gerald
post Jun 20 2019, 01:02 PM
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Here is a list of links to more or less preliminary PJ20 renditions. Illumination adjustment of these renditions is based on PJ06.

Part 1:
drafts,
reprojections, gamma=4,
maps, gamma=1,
maps, gamma=4,
maps of methane band image #20, gamma=1.

Part 2:
drafts,
reprojections, gamma=4,
maps, gamma=1,
maps, gamma=4.

Part 3:
drafts,
reprojections, gamma=4, also a zip of Obj files for selected reprojections of parts 1 and 2,
maps, gamma=1,
maps, gamma=4.

Some more products are still work in progress, and I might eventually find time to review most of those renditions with a different illumination model / BRDF / phase function.

See also John Roger's reports of PJ20 on the BAA website for some more derived products, comments, and annotations.
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