A client of mine recently contacted me in regards to putting “interactive” panoramic videos on their web site, similiar to those typically found on realty sites. The preparation for this kind of job isn’t extraordinary nor is it difficult but it is time consuming and in this instance patience is certainly a virtue.
First, you have to decide whether or not you’ll be using a conventional or digital camera. Depending on what you use, the results will vary in quality clarity, and resolution. Using a tripod is recommended and important in order to line up your photos and measure your shots incrementally.
For 360 degree images, it’s suggested that you take between 12–15 pictures depending on the lens of your camera. The easiest way to accomplish this is to think of the number positions on a clock and take each photo at these positions, similiar to the military technique of plotting points on a landscape.
Each photo should overlap about 15% 33–50% (thanks Erik) and with a decent tripod it’s just a matter of measuring and estimating. Most panoramic software will blend these images seamlessly and allow you to line up (using an onion skin effect) adjacent photos. Sometimes this is referred to as “stitching” and depending on the software you use this is either handled automatically or manually, but you’ll find that no matter how perfect it seems you’ll most likely have to fidget with the photos in order to produce the desired effect.
If you’re savvy enough with Flash and would much rather not purchase off the shelf software, you could always use Actionscript to program a panoramic viewer. For the less technically inclined or for those who have a shorter time frame you’ll find that most panoramic software, like Panorama Factory will output the results in the Quicktime format, which has built in VR capabilities (zoom in, zoom out, pan).
That said, have you ever created panoramic photos and if so, what software did you use?
I’ve tried to create panoramic photos with a built-in feature of Photoshop Elements, but it didn’t work as expected. I think it was because of the images. Maybe it works better if you take photos of a landscape, where everything is far away… I think I’ll try it again some time.
I used to have this program called QuickStitch that shipped with my Olympus digital about 6 years ago. It worked great, but I can’t get it to run on Windoze2K. Now I’m kickin’ it old school, and mosaicing them manually in Fireworks, which is actually kinda fun and the output looks cool most of the time.
I’ve been playing around with ULead’s Cool 360 and despite it being 5 years old (in software time, that’s ancient) it seems pretty intuitive. At this point I’m not sure whether or not there is something better out there to do this.
I’ve compiled panoramic images in the past using Photoshop and/or Fireworks, but never have I exported the image to Quicktime for use on the web.
Canon ships their Powershot digital cameras with a software program (for Windows) called Powerstitch*. I’ve used it a couple of times with decent results. It works especially well when you use the built-in panoramic mode of the camera.
Oops, I mean to say that I can’t be sure that the program is called Powerstitch as I’m at work and I forgot to bring the laptop with me.
Mark: So far, ULead Cool 360 has impressed me with its results. Initially I used high resolution images and the Quicktime VR file size ended up being about 6MB. Seeing as though most people wouldn’t want to wait that long I’ve decreased the resolution on the images which resulted in a 619k Quicktime file. Most impressive.
I then saved the final composition as a jpeg file which ended up being almost 180MB.
i use some canon stitch software and get good results.
an important element to remember, is when setting up the camera to fix the exposure settings (shutter/aperture) throughout the 12+ shots, so exposure settings for each shot are consistent
I’ve shot over 3000 panoramas and almost all with 12–14 shots around. I just wanted to point out that in my experience, any time I’ve only had 15% overlap, it’s lead to problems, usually because the stitcher doesn’t have enough area to 1) match up details, or 2) average out differences in color and/or lighting between the two shots. I usually use anywhere from 33 to 50% overlap.
I gotta think that programming your own Flash viewer for panoramas (particularly ones shot with wide-angle lens) might be a multi-month programming project. There’s a lot of math involved. Check my weblog vrlog.com for mention of a Flash viewer you can buy (I have no connection with the product, but post VR news all the time).
Lastly, keeping the nodal point of the lens centered over the tripod is critical to getting the stitching to go smoothly. A “panhead” helps with this.
erik
Erik: Always good to hear from another Erik (since I share the same name and spelling as well). I appreciate you sharing your thoughts because I’ve never photographed panoramic shots professionally before, other than experimenting.
I’ll keep in mind to overlap at least 30–50%. My experiment yesterday turned out better than I had initially expected so I can only expect that with subsequent tests I’ll become more familiar with the process.
By the way, you’ve got an excellent site. Very resourceful and informative.
I’ll be digging through it in the next few days.
Just to update those who are following this discussion, per Erik’s Virtual Parks site I was able to find a software title for Windows called Panorama Factory. It took me 15 minutes to take the photos and using Photoshop compress them from high-resolution to lower resolution. Then, it literally only took about 2–3 minutes total from start to finish to stitch the photos (using the built-in wizard) and output to both a jpeg and Quicktime VR file.
The quality of the panoramic image is astounding. If you’re in the market or have the interest to create panoramic images I highly recommend picking up Panorama Factory for $59.95.
I’ve been researching various software to accomplish these images for the past couple of days and found what I was looking for. Now I’m hooked! Yet another passive hobby to add to the list.
thanks — if there’s any more eriks that join in, we’ll need superscripts, or something. I’ve heard good things about PanoramaFactory but not tried it myself, as it doesn’t run on the Mac.
Oh, and the software I use is {Apple QTVR Authoring Studio, RealViz Stitcher} depending on the project.
erik
for erik… those are some great panoramas on your site! thought you might enjoy taking a peek at a site here in SLO where local virtual tours are provided to local businesses. They’re doing quite well with it — http://www.virtualslo.com. Not quite as inspiring, but another useful application.
As software I’m using PanoTools together with PTGui (or PTMac), shooting is done with a Canon 300D and a russian Peleng 8 mm fisheye, 6 shoots in portrait format, plus one shoot up and one shoot down to get a spherical or cubic panorama.
For the flash viewer you can try flashvr.de (not spherical)
I just made one from my Canon Powershot A75 digi cam. It has the function to take pano pictures, then it stiches em together at the end automatically. It’s pretty nifty, this cam rocks. You can upload wav files to it, loading screens etc etc..
Anyways, heres the pic it made:
http://www.neraweb.com/pano.jpg
Tripod with spirit level is a must for taking these shots. A panoramic head (to shift the lens back onto axis of rotation) can be useful, but so long as nothing important is closer than about three metres, it won’t be essential. 3d vista studio, is pretty handy for compiling, but can’t always deal with a succession of full res (at 6.3mp) images. Down-scaling a bit fixes things. Canon’s photostitch isn’t bad (especially as its free!). Pretty good results, quite quickly, but 3D vista gives more control.
Please what is the difference between Sigma 8mm and Peleng 8mm?
Best regards