How to Stitch a Panorama with the Nokia N95
Taking panoramas used to be an art form that took a lot of knowledge, a lot of heavy hardware and the semi-manual placement of control points in complicated software. To some extent this still stands true but with the advent of 5 mega pixel cameras on phones such as the Nokia N95 it is now possible to get good results with free software and a bit of patience.
Below is an example panorama captured using the Nokia N95, displayed using Image Cutter and Google Maps:
Click and drag to pan/scroll wheel or double click to zoom in and out of the image. You can also view the above image full screen.
To take your own Nokia N95 panoramas simply work your way through these easy to follow steps:
1) Set up your N95 to capture images at the highest resolution - 5 mega pixels.
2) Choose 'Landscape' under Scene Mode for the images, this ensures a constant focus throughout the capture process.
3) Stand in your location with the camera roughly at arms length and take your first image.
4) The secret to a good panorama is trying to firstly make sure the nodal point (lens) is kept central for each of the images and secondly that there is a 20% overlap with each shot. As such the aim is to make the camera the point of rotation and move round taking your second image so it overlaps the first one - as our first four images below illustrate:
5) Carry on working your way around the scene until you are back where you started, you should take approximately 14 images for a complete circle.
6) To increase the field of view of your panorama - ie to include more of the ground or the sky/close by buildings - simply tilt the N95 upwards or downloads accordingly and go around again. Pictured below is a section of our second round of images to fit in the buildings roof.
That's it, the image capturing process should take approximately 5 minutes.
We have used the freely available 'Auto Stitch' software to merge the panorama, simply because higher end solutions such as Real Viz's Stitcher hung at 99% on each of our test runs. Stitcher, when it works, will provide a better blend of colours but Auto Stitch is free, quick and simple.
1) Download Auto Stitch and install it on your machine.
2) Run Auto Stitch and choose File/Open - then select all of your images. This will run a quick low resolution test stitch to ensure the images align. Once you are happy that the panorama has worked go to Edit/Options and set scale to 100%. Reopen your images and sit back and wait, a typical stitch will take approximately an hour on a recent spec pc.
You should now have a completed panorama taken using your N95 - our test scene resulted in a 40Mb Jpeg at 18100x3766.
You can also use the N95 GPS functionality to link the image to Google Maps/Flickr - see our N95 Geo Image Tagging Tutorial.
Let us know if you create any of your own panoramas....