My personnal MER 3d software Options

[algorimancer]

my personal auto-panorama, bassed on CAHVOR model

test with sol 912
...

Nicely done Good to see someone else working from the CAHVOR model, I was feeling a little lonely. I'm curious as to how you handled the the image projection. When I did the plane projection in APG I simply projected pixel rays from the CAHVOR model + camera position/orientation + rover orientation onto a target image, and wherever the ray intersected a pixel on the target image I set the target pixel to the source pixel's intensity. There's gotta be an easier way to do this; I'm making things up as I go along, but there's a whole literature out there on image processing and projections which I am largely ignorant of.

[Indian3000]

hi algorimancer,


you have already the solution for the panoramas it is the same technique which for the vertical one except that one needs exchange the plan by a sphere or a cylinder, calculates the intersions with a sphere or a cylinder instead of a plan… and you have your panorama

I must acknowledge that it is you who my put on the way with your projection vertical:)

opportunity sol 919
Vertical projection using CAHVOR model

1 cm per pixel


2.5 cm per pixel



I do not have all yet made finished with projection vertical, I must still make blend between the frames and corrected gamma (as for the panorama) for the verticals I did not take yet into account the quaternion of the rover vector origin, it is what I code for the moment.

I have also in my plan to make an automatic traversmap with the technique of projection vertical, but a little more advanced, instead of calculating all separately the verticals map, I them calculation all in same time, which enables me to make a filter on the pixels most significant (otherwise say by calculating the distance from the pixel with the rover location )
what I think will make a traversmap more significant, with more significant pixel, considering that more close to the rover

I do not know if I were very clearly here

[algorimancer]

...
I have also in my plan to make an automatic traversmap with the technique of projection vertical, but a little more advanced, instead of calculating all separately the verticals map, I them calculation all in same time, which enables me to make a filter on the pixels most significant (otherwise say by calculating the distance from the pixel with the rover location )
what I think will make a traversmap more significant, with more significant pixel, considering that more close to the rover

I do not know if I were very clearly here

Clear enough I'm guessing you've done this sort of thing before I'm thinking that this vertical projection approach has a lot of potential for route maps, but some limitations as well. At some point I would really like to be able to automatically generate surface topography (triangulated surface) from the photogrammetry, then overlay the images on that; unfortunately time is finite, and I don't have enough of it to do all the things I'd like to do.

[dilo]

unfortunately time is finite, and I don't have enough of it to do all the things I'd like to do.

I know this issue
So, I'm happy to see someone (Indian) is planning to make automatic traversmap with the vertical pojection technique and you want to make it in 3D... cannot ask for more!

[Indian3000]

quality is not very good yet, but this starts has to become correct:)

I must still take account of the slope of the rover and a best gamma correction, but I start has to become satisfied

opportunity sol 919 ( 0.5 cm / pixel )



opportunity sol 919 ( 1 cm / pixel )

[helvick]

Wow.

No seriously - those two projections are absolutely astonishing. They really do appear to have been taken by a camera looking directly down onto Opportunity.

[jaredGalen]

Wow.

Seconded.

[Indian3000]

it is not the most recent site, but it is rather a sympathetic image,
I take again some site to make the tests of my software,
if somebody remember a sympathetic site… that he gives the sol number

opportunity SOL 354

vertical projection generated with CAHVOR Model



and same site - spheric projection generated with CAHVOR Model

[aldo12xu]

That looks so cool, Indian3000! Here's a suggestion for a Spirit site: Sol 310 Navcam panorama for the rock structures:

http://marsrovers.jpl.nasa.gov/gallery/all/spirit_n310.html

and Sol 112-113 for the dramatic shadow:

3.3Mb: http://marsrovers.jpl.nasa.gov/gallery/pre...mPan-A113R1.jpg

[Ant103]

If you want, I've made a logo for your Mars Rovers Center Polar Transform (MRCPT) :

PNG image :

Background image from Mhoward pan and polarized with MRCPT

And an ICO file :
MarsRoverCenter PolarTranform Icon

I can try to make others icons for Mars3DCenter

[Indian3000]

Ant103 : thanks, it's a good idee,it is in general the kind of small details of which I do not think… , I prefer projection RLOG, it gives of best result


aldo12xu : here spirit sol 310 112-113 soon


spheric projection ( browse version )




here a full version

SPIRIT_SOL354_spheric_proj.jpg 10000x5000 ( +- 2,5 mb )

vertical projection 0.5cm / pixel



vertical projection 1.0cm / pixel

[aldo12xu]

That looks great and it's a very useful image, too!! As long as we don't get too far from the centre of the projection, we can see a suggestion as to how the rocks are oriented. In this case, they seem to strike NNW and dip to the east, assuming north is at the top. I imagine the flatter the terrain, the less distortion there is as well.

[dvandorn]

...we can see a suggestion as to how the rocks are orientated.

This is just a personal gripe of mine, but... there really is no such word as "orientate." "Orientation" is a noun made from the verb "orient," to position. If you want to use a verb for the purpose, please use the correct one -- orient. The proper way to say the above is "we can see a suggestion as to how the rocks are oriented."

As a writer, I just have to express this kind of thing every once in a while. If I keep it bottled up for too long, you'll end up hearing an enormous explosion centered on the suburbs of Minneapolis...

-the other Doug

[Indian3000]

as promised

Spirit sol 111

vertical projection 1 cm /pixel




I do not put spheric projection, I have small a bug in my program, it is necessary that I correct

[aldo12xu]

Thanks Indian3000! Another nice one!

And Doug, nothing wrong with letting off a bit of literary steam