Welcome
Username or Email:

Password:


Missing Code




[ ]
[ ]
Online
  • Guests: 79
  • Members: 0
  • Newest Member: omjtest
  • Most ever online: 396
    Guests: 396, Members: 0 on 12 Jan : 12:51
Members Birthdays:
No birthdays today

Next birthdays
05/07 a.gutzeit (64)
05/08 wpk5008 (35)
05/09 Alfons (37)
Contact
If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.


Special Thanks To:
  • Aaron Holmes
  • Aaron Wheeler
  • Adam Horden
  • Alan Scrimgeour
  • Andre
  • Andrew Haynes
  • Anonymous000
  • asabase
  • Austin Weil
  • barney
  • Barry
  • Bert Hickman
  • Bill Kukowski
  • Blitzorn
  • Brandon Paradelas
  • Bruce Bowling
  • BubeeMike
  • Byong Park
  • Cesiumsponge
  • Chris F.
  • Chris Hooper
  • Corey Worthington
  • Derek Woodroffe
  • Dalus
  • Dan Strother
  • Daniel Davis
  • Daniel Uhrenholt
  • datasheetarchive
  • Dave Billington
  • Dave Marshall
  • David F.
  • Dennis Rogers
  • drelectrix
  • Dr. John Gudenas
  • Dr. Spark
  • E.TexasTesla
  • eastvoltresearch
  • Eirik Taylor
  • Erik Dyakov
  • Erlend^SE
  • Finn Hammer
  • Firebug24k
  • GalliumMan
  • Gary Peterson
  • George Slade
  • GhostNull
  • Gordon Mcknight
  • Graham Armitage
  • Grant
  • GreySoul
  • Henry H
  • IamSmooth
  • In memory of Leo Powning
  • Jacob Cash
  • James Howells
  • James Pawson
  • Jeff Greenfield
  • Jeff Thomas
  • Jesse Frost
  • Jim Mitchell
  • jlr134
  • Joe Mastroianni
  • John Forcina
  • John Oberg
  • John Willcutt
  • Jon Newcomb
  • klugesmith
  • Leslie Wright
  • Lutz Hoffman
  • Mads Barnkob
  • Martin King
  • Mats Karlsson
  • Matt Gibson
  • Matthew Guidry
  • mbd
  • Michael D'Angelo
  • Mikkel
  • mileswaldron
  • mister_rf
  • Neil Foster
  • Nick de Smith
  • Nick Soroka
  • nicklenorp
  • Nik
  • Norman Stanley
  • Patrick Coleman
  • Paul Brodie
  • Paul Jordan
  • Paul Montgomery
  • Ped
  • Peter Krogen
  • Peter Terren
  • PhilGood
  • Richard Feldman
  • Robert Bush
  • Royce Bailey
  • Scott Fusare
  • Scott Newman
  • smiffy
  • Stella
  • Steven Busic
  • Steve Conner
  • Steve Jones
  • Steve Ward
  • Sulaiman
  • Thomas Coyle
  • Thomas A. Wallace
  • Thomas W
  • Timo
  • Torch
  • Ulf Jonsson
  • vasil
  • Vaxian
  • vladi mazzilli
  • wastehl
  • Weston
  • William Kim
  • William N.
  • William Stehl
  • Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Forums
4hv.org :: Forums :: General Science and Electronics
« Previous topic | Next topic »   

Time Lapse Photography Whilst Walking

Move Thread LAN_403
thedatastream
Tue Jan 05 2010, 11:38AM Print
thedatastream Registered Member #505 Joined: Sun Nov 19 2006, 06:42PM
Location: Yorkshire!
Posts: 329
I'm going to be doing the 190 mile Coast to Coast walk Link2 sometime this year and I thought it would be a fun challenge to make a time lapse video of the route in a kind of "london to brighton in four minutes" style.

Issues for consideration

* Camera location: head, chest, rucksack?
* Technology: webcam, video camera, compact camera, time lapse controller?
* Environment: most likely wet so some waterproofing required, motion blur whilst walking?
* Cost: cheap for preference?
* Method: automatic time period (adjustable), manual trigger options (useful for capturing panoramas), low resolution video of entire route?
* Interval: interval of captures, image size, memory requirements?
* Software: how to stitch all the images together in a movie?
* Route length: 190 miles over 11 or 12 days, approx @ 6-7 hours a day walking = about 80 hours of walking.

Thoughts on possible options greatly appreciated!

Thanks
James
Back to top
Bjørn
Tue Jan 05 2010, 01:16PM
Bjørn Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
VrirtualDub can create a movie out of the pictures so that part is simple and easy.

It would be good if you went for pretty high resolution and a wide angle so it is possible to align the pictures by software making sure the resulting movie will not jump all over the place and be unwatchable.

If you mount the camera on your head the resulting film mightl be very jittery unless your neck is not welded stiff because you are likely to look around. It could be fixed by taking more pictures than needed and remove the useless ones from the film.

You can have a look at this tiny camera: Link2 It is quite nifty but the image quality is not great. The best option is probably a compact camera with an external battery pack.

Do some experiments with your current camera, go for a walk and take one picture every 30 seconds and use virtualdub to make a movie. You will learn more from that than any amount of thinking.

Back to top
Backyard Skunkworks
Tue Jan 05 2010, 05:15PM
Backyard Skunkworks Registered Member #1262 Joined: Fri Jan 25 2008, 05:22AM
Location: Maryland, USA
Posts: 451
Bjørn wrote ...

VrirtualDub can create a movie out of the pictures so that part is simple and easy.

It would be good if you went for pretty high resolution and a wide angle so it is possible to align the pictures by software making sure the resulting movie will not jump all over the place and be unwatchable.

If you mount the camera on your head the resulting film mightl be very jittery unless your neck is not welded stiff because you are likely to look around. It could be fixed by taking more pictures than needed and remove the useless ones from the film.

You can have a look at this tiny camera: Link2 It is quite nifty but the image quality is not great. The best option is probably a compact camera with an external battery pack.

Do some experiments with your current camera, go for a walk and take one picture every 30 seconds and use virtualdub to make a movie. You will learn more from that than any amount of thinking.



In fact I just used virtualdub last week to create a time lapse of 40 hours of snowfall. It came out very well. Been meaning it upload it to youtube.
Back to top
Sulaiman
Tue Jan 05 2010, 05:30PM
Sulaiman Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3141
If the time when shots are taken is preset/fixed then I would body-mount the camera, if you know when a shot is due I'd put it on my head because;
- you can aim easily/accurately
- it's the most stable platform
(e.g. to aim a laser-pointer very steadily press it against the side of your head)

IF you take a photo in the reverse direction at each point, you could have a video of the 'return' journey too.

The main problem as I see it is time, to have the video not too jerky
I GUESS you'd need a photo every 100 yards or so,
900 miles / 100 yards = 15840 photo's
@ 30 fps that's nearly nine minutes of 'video' and if 1 MB/photo that's 16 GB.


Back to top
Avalanche
Tue Jan 05 2010, 06:43PM
Avalanche Registered Member #103 Joined: Thu Feb 09 2006, 08:16PM
Location: Derby, UK
Posts: 845
I did some several-night backpacking about this time last year, full kit (camping). After the first 10 miles, you won't care about this thing any more until after the trip - so I'd recommend making it as 'out the way' as possible. Definitely not head mount, or chest. I would probably go for something like as small a camera as possible, firmly mounted on your rucksack strap near your shoulder. It would have to be automated too. If it 'gets in the way' during the expedition, or becomes any kind of burden whatsoever, I guarantee you will abandon it on the second day!!

Hardware wise, depending upon frame rate, you would want to either power the camera on and off between each pic, or leave it on all the time. If you're leaving it on, obviously you'd need to turn the LCD backlight off, and in either case the thing would need to be powered from probably a Li-ion pack in a side pocket. Probably make sense to not have a zoom lens. Some kind of PIC setup could take care of triggering the shutter. Make sure the thing is quiet, focusing noise and shutter bleeps will drive you nuts for several weeks afterwards cheesey
Back to top
mikeselectricstuff
Tue Jan 05 2010, 06:58PM
mikeselectricstuff Registered Member #311 Joined: Sun Mar 12 2006, 08:28PM
Location:
Posts: 253
Something that may make mounting easier is to have it rear-facing. Then play the sequence backwards.
Back to top

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob

Go to:

Powered by e107 Forum System
 
Legal Information
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.