Thursday, June 21, 2012

Kuopio's marketplace in a gigapixel panorama

Below is 2.7 gigapixel panorama of the Kuopio's market square renovation. You can zoom into the image and drag it around.


(One can change the panorama on the fly from the drop-down menu.)

Technical notes: middle portion of the image is shot with the venerable 105mm f2.8 VR Micro-Nikkor. Four rows of images were shot and stitched together in Hugin. Additionally, two rows of images were shot with Tokina 11-16mm f2.8 lens at 1mm setting and stitched together. These two panoramas were then combined to offer both resolution and good coverage over the scene.

Because handling and processing of images that are in the size of several gigabytes or -pixels is quite challenging, the panorama was stitched straight into cube faces with Hugin and Multiblend. Surprisingly, this worked quite well as no seams between the cube faces can be seen.

However, the tiling of the image for displaying didn't go so smoothly as SaladoConverter kept crashing. So, the tiling had to be done with Zoomify's ZoomifyConverter and the tiles renamed to conform to file and folder structure SaladoPlayer uses. Since Zoomify doesn't use any overlap between tiles, some seams can be seen when zooming is set to minimum.

This post originally appeared on Pallopanoraamablogi as "Kuopion torityömaa gigapikselipanoraamassa" at 2012-05-19

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