Photogrammetry's Best, Least Used Tool (part one)

Scale bars really are one of the easiest to use tools that I am yet to see discussed regularly.
This video is stacked with technical talk, so be warned.
Part two, where we will go into building scale bars, calibration and adapting your workflows around them, will be coming soon.
Note I do not go into circular targets or metashape. this is because I do not have a license for metashape.
More Resources:
april.eecs.umich.edu/software...
en.wikipedia.org/wiki/Hamming...
scanspace.nz/
www.artstation.com/shrogg
/ shrogg

[@ErikChristensensScanSpace]

Thanks everyone for watching! If you're into 3d scanning and want to come talk with like minded folk then feel free to join us on discord: discord.gg/CbmfrWR

[@AndreGrima]

This is very interesting!!! Is part 2 coming out please?😁

[@GrzegorzBaranArt]

What a lovely hammer you have there ;). Great to see you back in the 'video' world and thanks for sharing. Cheers!

[@henry-louisguillaume532]

The introduction is exactly what I repeat to all my students ! Perfectly explained and very good presentation, I have done this work on targets analyse for archaeologist for surveys (hopping they read it ...)

[@nunosousa154]

Love the high quality content, please do keep this coming. Your knowledge and experience has been of great help

[@watashiwastevedesu6928]

ingenious ..... thankks! part 2? :)

[@hisroyalillness]

Great content. I would love to see the part 2 of this.

[@ivinballen1251]

This is fantastic and makes me want to switch to April tags! Well done and please share more!

[@hudsonchalmers6504]

Photogrammetry is my favourite tool. Everyone is over emphasising lidar ,which is good but very expensive.

[@pro-fiel]

Incredible explanation, thanks for taking the time to make this!

[@janverwoerd7063]

Very good video Erik thanks

[@3enny3oy]

Thanks for sharing this Erik. I look forward to seeing part 2 and any other content you have in the pipeline.

[@cobeer1768]

I like your info and presentation style. Good work.

[@jaimejlynn]

Fantastic explanation, well explained. Though I did worry there’d been a glitch in the matrix. Keep the videos coming.

[@mementovivere2]

Thank you for this lesson!

[@X3msnake]

awsome knowlage sharing Master. keep up the great work

[@tylerheaton9452]

Thanks for the summary of using targets. Part two is looking like a great resource for creating the bars.

[@clovehitch]

Amazing insight Erik! Looking forward to part II, as well as the video about the single-pass technique you described in a Reddit post a while back.

[@mattevans2435]

Thanks Erik, this was great and thorough information. Is there a shop where these scale targets can be purchased? If they are "DIY" could you make a video on how you make the targets?

[@temporallabsol9531]

Thanks for the good videos bud.

[@Exitaph]

Hey man glad you're able to make videos again. The void video stepped up my photogrammetry game to the next level and motivated me to get the Godox ring flash and design and 3d print a polarizing filter for it like yours. I just got a drone for aerial photogrammetry and quickly realized I need to start using markers. This is probably the best concise explanation of what they are and how to use them. Looking forward to part two!

[@MAWIUnited]

Awesome video Eric :)

[@slarti42uk]

Really excellent video and explanation. Really looking forward to seeing more detail on the capture time use and how you place them in different scenarios, do they remain in all captures? What if they move with respect to the object etc.

[@vrguytokyo]

Dude.. This is really fascinating stuff! At first i was like... huuuuuuh?! I mean it makes sense what you're saying but I'm just trying to pile this info on to all the other things I need to know and do to improve..and as simple as these apriltags seem to be when I first saw being used... I had no idea how much information such an apparently simple little thing could contain! I hope you come out with your part 2 and as many other parts you care to produce sharing you knowledge and expertise. How can we go about creating these tags? Also.. I do hope the personal struggles that got in way of your creation have subsided and everything is well again! If not.. I'd encourage you to still try to create if it's something you really love. I think all if not most creators can relate on some level.. we just need to lift each other up and show our support! :)

[@thetruthserum2816]

I searched for the part 2 to no avail...

[@peterallely5417]

Would love more content dude, I'm based in Hamilton - If you ever need help in bring this content to people I'd be happy to help (background is in video production, recently entered the rabbit hole of realtime 3D and photogrammetry!).

[@thesystemera]

Hey fellow Kiwi! Great to see yah.

[@benmo6609]

Damn Metashape, gotta open up the targets!

[@StefanBleicker]

Hi Eric, thx for your videos, very informative! I have a question: how do you fix the hammer? Looks very interesting for me! thx

[@blahokay1]

Does this have a part two? I can't find it if so.

[@andreasclemens3873]

where is part 2 ? :)

[@matic_horvat]

Yo, do you still do photogrammetry?

[@MrGTAmodsgerman]

I don't understand this. Why isn't there just a marker that the software knows, which scale this marker have and that's always like that, so it simply scales your scene units by that marker and nothing else? When the marker is captured and in preknown by the software, why do i have to tell it what it is?

[@ezearo]

When is part 2 going to be released?

[@ErikChristensensScanSpace]

its a work in progress, primarily since this youtube channel doesn't bring in any income I sadly have to sideline projects. and that second video is something that I will need to pickup once my main work gets quiet again.

[@ezearo]

@@ErikChristensensScanSpace thank you for replying, I appreciate the effort you put into your videos and thank you for sharing your knowledge with us.

[@cgrosbeck]

Will those bars be avalible in your store

[@ErikChristensensScanSpace]

Potentially, there's a lot of logistics to be worked out with them.

[@hargrove_here]

Part two? Where are you!?

[@ErikChristensensScanSpace]

in progress, had a lot of work come up suddenly and just haven't had the time to complete it yet

[@radiantthought]

@@ErikChristensensScanSpace any updates? it's been ~1.5 years now. I'd love to know more as someone who's just getting into photogrammetry, this seems amazing.

[@airsoftassassins8060]

I’ve learned way too much.