Saturday, November 17, 2007
Panorama Picture #1
Panoramic photography is a format of photography that aims to create images with exceptionally wide fields of view, but has also come to refer to any photograph that is cropped to a relatively wide aspect ratio While there is no formal definition for the point at which "wide-angle" leaves off and "panoramic" begins, truly panoramic image are thought to capture a field of view comparable to, or greater than, that of the human eye - about 160° by 75° - and should do so while maintaining detail across the entire picture. The resulting images are panoramic, in that they offer an unobstructed or complete view of an area - often, but not necessarily, taking the form of a wide strip. A panoramic photograph is really defined by whether the image gives the viewer the appearance of a "panorama," regardless of any arbitrary technical definition.
Photo-finishers and manufacturers of Advanced Photo System (APS) cameras also use the word "panoramic" to refer to any print format with a wide aspect ratio, not necessarily photos that encompass a large field of view. In fact, a typical APS camera in its panoramic mode, where its zoom lens is at its shortest focal length of around 24 mm, has a field of view of only 65°, which many photographers would only classify as wide angle, not panoramic. Cameras with an aspect ratio of 2:1 or greater (where the width is 2 times its height) can generally be classified as being "panoramic" (Wikipedia).
Most of the panorama pictures are processed with special image processing softwares which are able to crop and join single pictures into a large one. A popular technique applied into those softwares is "image correlation", which provides hints to find common points among the two pictures. Those points will act as "control points" that the softwares use to rotate, skew and transform one picture in reference with the other. Blending technique is applied to merge and blend the edges of the two consecutive pictures. This technique ensures a smooth and continuous view in the area between the edges of the two images.
I took those panorama pictures during my trips in Thailand. Panoramic views were generated using ArcSoft Panorama software.
A golf court in Pathum Thani
Wat Phravihan hill, after forest burn, near Cambodia border
Bayoke tower, Bangkok
A view of Bangkok from Bayoke Suite tower
Doi Suthep romantic trail, Chiang Mai
Muang Boran (Ancient City), Samut Prakan
A lake in Navanakhon
Posted by Mystical Orient
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