Mosaic image generation on a flattened Gaussian sphere

Mosaicing of images is the task of fusing a collection of images with smaller elds of view to obtain an image with a larger eld of view. In order to accomplish this task, images should be geometrically and radio-metrically corrected. We propose a new approach for perspective correction useful when smaller images are gathered by rotating a camera with a xed position. These images are projected onto a Gaussian Sphere centered at the focal point of the camera which is later attened on a plane tangent to the sphere. Using this procedure a eld of view of up to 360 o can be obtained on a mosaic image. We illustrate the geometric correction capability of our procedure (including more traditional gray level modiication and seam elimination techniques) on outdoor scene images that partly overlap with each other .