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Posted by: Sean Sep 8 2018, 12:09 AM

PJ15_19,20,21,22,23
https://flic.kr/p/28773pS

From Brian Swift's pipeline

Posted by: Brian Swift Sep 8 2018, 01:16 AM

PJ15_22 processed with updated Mathematica pipeline https://github.com/BrianSwift/JunoCam which includes flat-field/debias correction and new color balance.
https://flic.kr/p/2aRZThB

Posted by: Sean Sep 8 2018, 02:18 AM

Nice job Brian, I'm clearing out some hard drive space for the script update.

Here is my take on this awesome output...
https://flic.kr/p/29tJfMM

Aligned rgb channels & image process. ( & flipped it )

Posted by: Gerald Sep 8 2018, 04:44 AM

http://junocam.pictures/gerald/uploads/20180908/.
http://junocam.pictures/gerald/uploads/20180908a/.

My upload bandwidth to missionjuno was rather narrow most of the night. So, some delay.

Here the reprojected RGBs in JPG:
#23:

Posted by: Gerald Sep 8 2018, 04:45 AM

#22:

Posted by: Gerald Sep 8 2018, 04:46 AM

#21:

Posted by: Gerald Sep 8 2018, 04:47 AM

#20:

Posted by: Gerald Sep 8 2018, 04:49 AM

#19:

Posted by: Gerald Sep 8 2018, 04:51 AM

#18, and #17:

Posted by: Gerald Sep 8 2018, 04:56 AM

#15, #11
#10, #09
#08, #07,
and #06:

Posted by: mcaplinger Sep 8 2018, 05:00 AM

Brian, the large image you put inline makes this page load very slowly.

Posted by: Gerald Sep 8 2018, 05:07 AM

Btw., this is the -- technical -- description I've added to the missionjuno upload:

The image is reprojected according to a slightly modified, and still preliminary geometrical camera model, cleaned from most repetitive camera artifacts and from most energetic particle hits, approximatly illumination adjusted, and stretched with gamma=4 with respect to radiometric values.
Applied camera geometry: pinhole focal length 1482.5 (square) pixels, Brownian radial distortion parameters K1=-6.0E-8, K2=3.0E-14, CX=809, CY=610.01, for all filters, relative to system with the following lower edge of readout regions: red 306, green 461, blue 616, left-most pixel column at x=0.
Juno rotation period=80.935 interframe delays, and roughly estimted to 30.063 sec, rotation phase of CCD around JunoCam's optical axis = 0.00153 radians relative to orthonormal frame defined by Juno's spin. Rotational angle around JunoCam's x-axis has been adjusted manually.
Geometry shift due to TDI has been neglected, as well as velocity aberration.
Assumed Jupiter shape model: 1 bar IAU Jupiter Maclaurin sheroid, rotating according to L3 longitude system.
Linear radiometric weights applied to decompanded colors: 0.88 for red, 1.0 for green, 2.17 for blue. Color interpolation is bilinear. Effects of global flat field and stray light have been neglected.
Resolution is 30 degrees per degree in an equdistant cylindrical system centered to the camera at image stop time, with an axis parallel to Juno's spin axis. The rendered field of view is 60x180 degrees.

Posted by: Brian Swift Sep 8 2018, 07:17 AM

Sorry about that. I've changed it to a smaller version.

Posted by: Brian Swift Sep 8 2018, 07:50 AM

I was pleasantly surprised that implementing the flat field correction cleared up the repetitive artifacts without need for any additional masking and filling. (For TDI=1 images)

FWIW, my current flat field derived color balance is {0.838223, 1., 2.37871}

Should be "Resolution is 30 pixels per degree..."

Posted by: Sean Sep 8 2018, 03:47 PM

Gerald's sequence & details...
https://flic.kr/p/2aNBhqA

https://flic.kr/p/29MxpHf

https://flic.kr/p/2889pAj

https://flic.kr/p/29Mxqw9

https://flic.kr/p/M7XsJH

https://flic.kr/p/29uBYT8

https://flic.kr/p/2aSY9V8

https://flic.kr/p/M7Xx9V

Posted by: Kevin Gill Sep 8 2018, 06:42 PM

A couple of details using my updated pipeline

https://github.com/kmgill/cassini_processing


https://flic.kr/p/2873iSy
PJ15-19

https://flic.kr/p/29tvhFc
PJ15-20

https://flic.kr/p/288ggsm
PJ15-21

https://flic.kr/p/29tuQ5g
PJ15-22

https://flic.kr/p/2aMykSY
PJ15-23

https://flic.kr/p/2876BAo
Map projected combination of 22 && 23

Posted by: Kevin Gill Sep 9 2018, 10:12 PM

Some of the approach images of the North Polar area

https://flic.kr/p/NMNTwf
PJ15-11


https://flic.kr/p/NLhtF5
PJ15-15


https://flic.kr/p/M8JmSn
PJ15-17


https://flic.kr/p/288LWt9
PJ15-18

Posted by: Gerald Sep 11 2018, 08:10 PM

http://junocam.pictures/gerald/uploads/20180911/

I'm currently busy with geometrical calibration for my EPSC talk. I may upload the images to missionjuno and UMSF, after I'll have completed a calibration milestone I've almost accomplished.

Posted by: Gerald Sep 12 2018, 12:36 AM

With the flat field, I've conservative in oder to be ready for DCT compressed images, for TDI >> 1, and for energetic particle hits. But with the Huffman encoded images, it may be worth to work directly with the flatfield.

People wanted the images redder. So, I changed to red=0.88. But this may be connected to the strong enhancement I'm usually applying, and the physically non-straightforward human color perception of poorly satutated colors. I might investigate the colors more thoroughly at some future point.

Thanks for the correction of my text! Late at night, and working on several tasks in parallel, I've to live with making errors.

Now, the enhanced reprojections of part 2 of PJ15 I've linked to, above:

PJ15, #24:

Posted by: Gerald Sep 12 2018, 12:38 AM

#25:

Posted by: Gerald Sep 12 2018, 12:39 AM

#26 and #27:

Posted by: Gerald Sep 12 2018, 12:41 AM

#28 and #29:

Posted by: Gerald Sep 12 2018, 12:43 AM

#30 and #31:

Posted by: Gerald Sep 12 2018, 01:06 AM

#32, and #33:

Btw., I've completed the calibration milestone. But the above images have been rendered with the parameters I've provided after the posts with the part 1 uploads.

Results of the new calibration iteration step are: focal length 1482.29 pixels, optical center (809.09; 609.20), rotation around optical axis 0.00145 radians, K1=-5.75E-8, K2=2.73E-14. The origin (0; 0) of the applied frame is the lower left corner pixel of the CCD (the side with the red filter).
But I think, that it's still possible, that the corners of the CCD are off up to 10 pixels with this approximation. However, that's outside the readout regions. Nevertheless, I'll try to narrow this further down with higher-order approximations.

Posted by: avisolo Sep 12 2018, 07:27 AM

Gif of Gerald's Perijove 15 images:
https://i.imgur.com/okSM2pI.gifv

Posted by: Sean Sep 12 2018, 11:53 AM

Is this the final tally of images for Perijove 15?

Posted by: mcaplinger Sep 12 2018, 01:32 PM

No, there are still several more to come.

[edit: as of 14:36 PDT all of PJ15 should be on missionjuno.]

Posted by: Kevin Gill Sep 16 2018, 06:07 PM

Couple more shots from Perijove 15


https://flic.kr/p/NUTApC
PJ15-35

https://flic.kr/p/2a1Wx43
PJ15-36

https://flic.kr/p/29CHujV
PJ15-37

https://flic.kr/p/2b3Ba9M
PJ15-38

https://flic.kr/p/29CGFya
PJ15-39

https://flic.kr/p/2b3vYdi
PJ15-40

https://flic.kr/p/2aWFv5C
PJ15-41

https://flic.kr/p/P1gduw
PJ15-43

https://flic.kr/p/2a1XmiJ
PJ15-58

Posted by: Kevin Gill Sep 16 2018, 06:16 PM

And more


https://flic.kr/p/29zCRor
PJ15-24

https://flic.kr/p/NRwQEm
PJ15-25

https://flic.kr/p/2aUzgPy
PJ15-26

https://flic.kr/p/29S4HLW
PJ15-27

https://flic.kr/p/2aUG1jS
PJ15-28

https://flic.kr/p/NRGL7o
PJ15-30

https://flic.kr/p/MctpL4
PJ15-31

https://flic.kr/p/McBkyv
PJ15-32

https://flic.kr/p/2aTbAJu
PJ15-33

Posted by: Bjorn Jonsson Sep 16 2018, 10:32 PM

Image PJ15_23, approximately true color/contrast:

And enhanced versions:




IMAGE_TIME = 2018-09-07T01:04:47.244
MISSION_PHASE_NAME = PERIJOVE 15
PRODUCT_ID = JNCE_2018250_15C00023_V01
SPACECRAFT_ALTITUDE = 6651.4
SPACECRAFT_NAME = JUNO
SUB_SPACECRAFT_LATITUDE = 38.1981
SUB_SPACECRAFT_LONGITUDE = 330.5426
TITLE = PJ15 North North Temperate Belt
Resolution at nadir: ~4.5 km/pixel

In the images above the resolution is highest (~4.5 km/pixel) within the brown barge near the right edge of images where a large part of the barge is visible.

Posted by: JRehling Sep 17 2018, 05:39 PM

These are heartbreakingly beautiful.

Posted by: John Moore Sep 17 2018, 07:13 PM

Extraordinary perspective and views, Kevin.

Posted by: Kevin Gill Sep 18 2018, 07:00 PM

I was curious for a processing pipeline comparison, so I did up the same angles as posted by Bjorn on Sunday.

As typically output by my pipeline:

And enhanced using my normal methods (Photoshop + Lightroom)

Posted by: Sean Sep 18 2018, 09:37 PM

It's great to see these pipeline comparisons!

And your pipeline Kevin is going from strength to strength, beautiful results with every update. *chef's kiss*

Posted by: Bjorn Jonsson Sep 18 2018, 10:12 PM

It should be good news for both of us that the results of the two pipelines look overall similar. Something weird is happening near the lower right corner in one of the images though. Are you using ISIS3 here?

Posted by: Kevin Gill Sep 18 2018, 11:27 PM

Yes, see that? I am using ISIS3 and a lot of the maps get that little notch. I tend to crop around it, though.

Posted by: mcaplinger Sep 20 2018, 09:12 PM

If it wouldn't be too much trouble, if you could put together an example of what steps you followed to create this image, it might help the ISIS3 group debug the problem. This seems like too big a glitch to be attributable just to our camera model being a little off.

Posted by: Kevin Gill Sep 21 2018, 03:44 PM

The process is automated here: https://github.com/kmgill/cassini_processing/blob/master/sciimg/isis3/junocam/processing.py

It's pretty straight forward use of junocam2isis, spiceinit, trim (optionally), and cam2map. (the rest of this process doesn't go into the above images). The resulting maps look reasonable:



The problem is probably more related in how I'm doing the vertex and UV mapping in the render code (https://github.com/kmgill/cassini_processing/blob/master/render_junocam_cube.py). It's not super exact and in need of some attention.

Posted by: mcaplinger Sep 21 2018, 08:28 PM

I had assumed you were doing that in ISIS3 as well but it probably can't do an off-center point perspective view (my software can't either.)

Thanks for sending the code, that was very helpful!

Posted by: Gerald Sep 23 2018, 12:19 PM

Here are some more PJ15 renditions:
- http://junocam.pictures/gerald/uploads/20180923/,
- http://junocam.pictures/gerald/uploads/20180923a/,
- http://junocam.pictures/gerald/uploads/20180923b/,
- http://junocam.pictures/gerald/uploads/20180923c/.

I'll upload some of the reprojections to missionjuno later today.

Posted by: Sean Sep 23 2018, 07:35 PM

PJ15_38 [Swift/Doran]

https://flic.kr/p/2bn3aEP

Posted by: Gerald Sep 24 2018, 07:31 AM

Here JPG copies of some of the PJ15 images, part 3:
#35, #36
#37, #38

Posted by: Gerald Sep 24 2018, 07:34 AM

#39, #40,
and #41:

Posted by: Bjorn Jonsson Sep 26 2018, 11:54 PM

Here's PJ15_32 (SEB South). First approximately true color/contrast versions:

And versions with enhanced color and contrast:




And a subset of the associated metadata:

IMAGE_TIME = 2018-09-07T01:26:44.262
MISSION_PHASE_NAME = PERIJOVE 15
PRODUCT_ID = JNCE_2018250_15C00032_V01
SPACECRAFT_ALTITUDE = 11949.2
SPACECRAFT_NAME = JUNO
SUB_SPACECRAFT_LATITUDE = -22.4733
SUB_SPACECRAFT_LONGITUDE = 352.7984
TITLE = PJ15 South Equatorial Belt south
Resolution at nadir: ~8 km/pixel

Posted by: Gerald Sep 28 2018, 04:59 PM

https://www.youtube.com/watch?v=OHGdnXeStiw.
http://junocam.pictures/gerald/uploads/20180928/:

Posted by: Sean Sep 28 2018, 05:28 PM

Beautiful work as usual Gerald.

Posted by: Bjorn Jonsson Sep 30 2018, 11:03 PM

Image PJ15_43. The left version is an approximately true color/contrast image. In the version at right the effects of the varying illumination have been removed.

This image was processed with a new version of my JunoCam processing pipeline after I fixed an annoying bug that was usually not of significance but could occasionally result in some color misalignment near the limb. This had to be fixed during postprocessing - not having to fix this misalignment saves a considerable amount of time when processing the images where this problem would have occurred.

By JunoCam standards this is a fairly distant image as this subset from the metadata shows:

IMAGE_TIME = 2018-09-07T02:21:50.387
MISSION_PHASE_NAME = PERIJOVE 15
PRODUCT_ID = JNCE_2018250_15C00043_V01
SPACECRAFT_ALTITUDE = 103371.3 km
SPACECRAFT_NAME = JUNO
SUB_SPACECRAFT_LATITUDE = -78.5043
SUB_SPACECRAFT_LONGITUDE = 66.4235
TITLE = PJ15 Southern timelapse sequence
Resolution at nadir: ~70 km/pixel

Posted by: Floyd Oct 1 2018, 06:04 PM

Amazing how far into the twilight-dark you get before it come apart. Very nice.

Posted by: Bjorn Jonsson Oct 13 2018, 04:45 PM

Image PJ15_22 in approximately true color/contrast and enhanced versions:

And a subset of the metadata:

IMAGE_TIME = 2018-09-07T01:01:47.358
MISSION_PHASE_NAME = PERIJOVE 15
PRODUCT_ID = JNCE_2018250_15C00022_V01
SPACECRAFT_ALTITUDE = 9184.6 km
SPACECRAFT_NAME = JUNO
SUB_SPACECRAFT_LATITUDE = 45.536
SUB_SPACECRAFT_LONGITUDE = 326.9532
TITLE = PJ15 Jet N4
Resolution at nadir: ~6.2 km/pixel

Posted by: Bjorn Jonsson Oct 15 2018, 08:10 PM

Image PJ15_30 in approximately true color/contrast and enhanced versions:

The second image has lots of interesting details. The enhanced version of it has been processed to enhance both large scale and small scale features by using processing parameters that differ for different parts of the image, depending on the contrast and the amount of small scale details in the original unenhanced image.

And a subset of the metadata:

IMAGE_TIME = 2018-09-07T01:20:45.235
MISSION_PHASE_NAME = PERIJOVE 15
PRODUCT_ID = JNCE_2018250_15C00030_V01
SPACECRAFT_ALTITUDE = 6252.9 km
SPACECRAFT_NAME = JUNO
SUB_SPACECRAFT_LATITUDE = -7.3210
SUB_SPACECRAFT_LONGITUDE = 347.0286
TITLE = PJ15 South Equatorial Belt
Resolution at nadir: ~4 km/pixel

Posted by: vikingmars Oct 16 2018, 06:27 AM

Thank you so much Bjorn for sharing with us this very nice work of yours

Posted by: wildespace Oct 24 2018, 03:15 PM

Hi Kevin. Your image at http://www.missionjuno.swri.edu/junocam/processing?id=5628 has a little green artifact on Jupiter's limb (at about 1 o'clock). It's not visible in the raw images. I wonder what caused it. It's been spotted by UFO "spotters".

Posted by: Bjorn Jonsson Oct 28 2018, 09:55 PM

Image PJ15_27, approximately true color/contrast and enhanced versions:

And a bit of metadata:

IMAGE_TIME = 2018-09-07T01:14:15.927
MISSION_PHASE_NAME = PERIJOVE 15
PRODUCT_ID = JNCE_2018250_15C00027_V01
SPACECRAFT_ALTITUDE = 3485.1 km
SPACECRAFT_NAME = JUNO
SUB_SPACECRAFT_LATITUDE = 11.4386
SUB_SPACECRAFT_LONGITUDE = 340.6545
TITLE = PJ15 Closest approach
Resolution at nadir: ~2.4 km/pixel

Posted by: Bjorn Jonsson Oct 28 2018, 09:59 PM

And image PJ15_33 in approximately true color/contrast and enhanced versions:

Metadata:

IMAGE_TIME = 2018-09-07T01:29:44.219
MISSION_PHASE_NAME = PERIJOVE 15
PRODUCT_ID = JNCE_2018250_15C00033_V01
SPACECRAFT_ALTITUDE = 15645.9 km
SPACECRAFT_NAME = JUNO
SUB_SPACECRAFT_LATITUDE = -29.0053
SUB_SPACECRAFT_LONGITUDE = 355.6893
TITLE = PJ15 South Temperate Belt Spectre timelapse sequence
Resolution at nadir: ~11 km/pixel

Posted by: Sean Dec 30 2018, 07:43 PM

PJ15_21 compare
[ Swift / Eichstadt / Doran ]
https://flic.kr/p/2cMMDFy

Posted by: Sean Jun 11 2019, 03:34 PM

PJ15_20 detail update [ GE/SD ]
https://flic.kr/p/2gcuAjc

Posted by: jasedm Jun 11 2019, 04:38 PM

I've deliberately held off commenting on the Juno threads until now, not wanting to bump up the S/N ratio, but the images presented here are jaw-dropping and astonishingly beautiful to behold!

Many congratulations to those putting in the effort to process and present them for us all to enjoy.

Thank you!