Electronically Assisted Astronomy with a Jetson Nano

Hello everyone,

nothing really new but i wanted to give you a small gift for Xmas.

This time, nothing really related to Nvidia (in fact, Nvidia is everywhere so i guess my post is connected to Nvidia in a way i don’t know).

It is just to illustrate my interest with astrophotography and the fact we can always find in interesting way to show things.

So, i took one of my pictures of coloured Moon and i put it in Google Earth (i should say Google Moon).

The result is rather funny. It looks like you were in the Apollo command module in orbit around the Moon. Personally, i find this video just great.

The link to see it :

I also have a wish : i would like Nvidia to be more and more involved in image processing and enhanced vision, to help us see things our eyes can’t see. Come on Nvidia, even if you won’t earn a single dollar with it, just get involved in astronomy !!!

Do you imagine what a VR system could give with Nvidia capabilities, using NASA digital elevation model of the Moon and high resolution pictures of the Moon (or my colour pictures) ? What a journey, really. Yeah Nvidia, come on, for a great Apollo program tribute !

Merry Xmas to all !

Alain

1 Like

Hello,

retrieving colours of the Moon’s soils needs a lot of treatments i usually make step by step.

But i made tests with Jetson Nano and my software SkyNano to try to make the full treatment in a single pass. The challenge is to get a good result at the end of the treatment and i can tell you it’s really complicated. If you don’t get the good filters with the good settings in the appropriate order, you will get a really strange result.

I took one of my picture of the Moon (RAW picture which is in fact a 12 pictures mosaic; the all Moon is too big for the camera sensor when i use my telescope). The RAW picture size is 39 Mpx.

So, here is the RAW picture i put in SkyNano :

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It is not a very beautiful picture but i need to get a RAW picture to see what SkyNano can do.

So, i have to apply filters to try to get the colours of the soils. I apply 6 different filters to get the final result.

The treatment time is about 10 seconds for the Jetson Nano, depending of my filters setting.

So, here is the result :

External Media

Frankly, i think the final result is very good. With this single pass treatment, i get a colour map of the Moon i can use to colourize some sharp and detailed monochrome captures.

If you compare the RAW image and the result, it’s hard to believe so much informations were hidden in the RAW image.

To give you an idea of the gain with SkyNano and the Jetson Nano, it takes me about 1 hour (depending of the RAW picture quality i get) to get a colourmap of the Moon with traditional image treatment software. With SkyNano, i need about 10 minutes to set filters parameters and i get the final picture.

This is the big advantage to be able to write specific routines to match your will.

Have a nice day.

Alain

Lat post before Xmas.

Many thanks to Rick Merritt for having post my little story on Nvidia blog :

Merry Xmas !

Alain

1 Like

Very cool, Alain, and Happy Holidays!

Many thanks mdegans. But holidays are over.

Happy holidays to you !

Alain

Hello,

as you know, i am now able to over saturate a Moon capture i made with my telescope using the Jetson Nano and appropriate software filtering using CUDA (see post above).

This new treatment allow me to get a one pass treatment instead of multiple pass treatments with common image treatment software and i get more details in the colours but still preserving details and sharpness.

So, i get my new colour map of the Moon’s soils with Jetson Nano and i can use this map to colourize monochrome captures with better resolution and details.

Here are 2 examples of monochrome captures colourized with my new colour map :

Colours give us informations about metallic oxides in the soils. Therefore, we can have better idea of soils composition and this highlight Moon geology and history.

Alain

Hello,

to start well this new year, my last photo of the Moon with colours. I used the colour map of the Moon’s soils i made with the Jetson Nano.

Right click → show image.

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The full resolution of this picture is 58Mpx.

Happy New Year !

Alain

Hello,

my software is useful for astrophotography but it can be used for other applications.

Here is an example of treatment i made with the Jetson Nano to retrieve signal in a very low light video. I think it’s interesting :

In this example, getting more signal will allow better AI treatment to identify people, objects, cars, road etc.

I think there is a lot of work to do to improve sensor response in order to get very secured AI treatment for automotive market (for example).

I think i will work on that subject for the coming months.

Alain

Hello,

it’s time for me to return to personal and hidden work. A Belgium company has tried to still my work (reading by feed back experience on Nvidia website).

It’s a bit sad. So i will stop posting my work here (and mostly anywhere else) to avoid that kind of situation and to be able to continue to work quietly (image and video processing).

It was nice to share my work with you but i prefer to hide my work now in order to remain cool and relax.

Bye bye.

Alain

Sorry to hear that. You could just publish your code under a restrictive license, or even a less restrictive one where they just need to give you credit.

Did you post code here? I don’t recall. Anyway. Relax if you wish, and thanks for the pretty images.

I did not post my code. They tried to get my code from me, using an very unfair proposal. Even if we make code for fun, we have to be very careful with people who want everything for nothing.

I write code for fun and for my pleasure. I can share but I don’t want bad guy make money with my work.

Alain

I don’t personally care as far as my own code is concerned. A rising tide raises all boats. If they use it, and you use the right license, they’ll probably contribute back to it, and you get to take credit in any case. That helps you, if you care about credit.

My spouse, who’se also French, used to work for a company that didn’t pay him very well, but while he was there he got to write a GPLed library for OpenCV. Eventually, that code help him land a job at one of the top companies out there.

You did something impressive. It’s my view that at some point it should see the light of day, if just for my own curiosity of reading the code. If you truly feel that it will be misused, then keep it, but if the extent of misuse is that somebody, somewhere, will make some money, I don’t personally see the harm.

One of the best ways to protect work is to publish it. Then it cannot be disputed that it is your work. I’d agree with @mdegans, it is hard to get credit for unpublished work, and it is easier steal unpublished work.

Hello,

when i work with amateur for non commercial use, i am really ok to give my work and ideas. No problemo.

If my work is used by someone to make money, i do not agree at all.

I am French and this is an important point. Today in France, salaries are really bad and government still continue to take very important amount of the money we earn. That is to say more and more people get rather poor.

Concerning me, i am really fed up giving more and more money and getting nothing in return. So, now, i give nothing. The only thing i am ok for is an equilibrate deal between me and someone.

For example, Nvidia gave me useful help with the Jetson Nano and in return, i have shown what i do with the Nano. It’s a good deal.

If i work for free, it is for my own interest and pleasure. If someone plans to earn money with my work, i also want to get an appropriate retribution. I don’t want to work for free for anyone. I did but i won’t anymore.

My work is really specific and i think it was interesting to show the results with astronomy images or video. The “howto” is not really important because it needs very specific knowledge and equipment to get such result.

There is no need for me to publish my code because it is jut a part of the entire treatment. It is not a “standalone” product and if i publish it, it will generate too much interrogations and probably frustration.

I will keep my work and die with it. The most important was to show something a bit new. Maybe it will decide other people to develop their own technical solution to show us wonders of the sky.

Alain

Well, if they use your ‘free’ thing, then they become dependent on you, and you can charge what you want for support as they become more and more dependent. It’s what RedHat does, as well as many other companies that produce open source products (and drug dealers). It’s a proven model that works.

For engineers, especially, compared to the US. I tell my French spouse, the problem is your educational system is too good. In the US, we have to import all our engineers since good ones are so rare. I wouldn’t complain too much about the high taxes, however. You have a health care system that works. Don’t take that for granted.

That’s what I was hoping wouldn’t happen. Instead, make a library, and charge for some closed source components like a gui, or support. Become an auto-entrepreneur. It’s what I did when I lived in France, since it took so long for the administration to give me a social security number. I got a SIRET almost immediately on the other hand.

France and french are a bit complex !

Anyway, it was a pleasure to make this topic and it was a pleasure to collaborate with Nvidia.

I wish the best to everyone !

Alain

Hello,

a quick return because i have just find how to put directly a video in a post.

Now, the video are in the posts so if someone did not see them, you can watch them more easily.

That’s all.

Bye

Alain

More than a little bit. I am married to a French but still don’t understand you most of the time.

Likewise. You have some talent. Keep creating stuff!

Many thanks mdegans.

And i will try to be a bit less complex !

Alain

Hello,

i can’t resist posting a last video. It’s a bit funny (from my point of view).

It’s an example of extreme treatment which show a bit strange result.

I think the result is an artefact due to treatment. But that kind of example shows video and image treatment can go much further than eye or non treated video can do.

This time, i go away.

Bye.

Alain