Patent ID: 8217989
Filing Date: 2012-07-10
Classification: G03B,G06T,H04N

Abstract:
1. A panoramic picture photographing method comprising the steps of: (a) projecting an image comprising a plurality of individual images of different frames that have each been successively inputted in a predetermined unit of time to an imaginary surface having a same focal distance in photographing each individual image and the surface defining a panoramic picture comprising the projected image; (b) confirming movement of a corresponding photographing apparatus by comparing a current image with a previous image in real time using a motion estimation technique to which exposure correction has been applied; (c) determining a photographing time point of each individual image by confirming the confirmed movement in step (b) according to a photographing direction reaching a predetermined critical value; and (d) photographing each individual image at the photographing time point automatically or via a user input; wherein, projecting the image in step (a) comprises calculating a pixel corresponding to point (x, y) in an image coordinate system having a center of the image frame as an origin according to the following: wherein, f is a focal distance of each image, θ is a rotational angle between images, the image coordinate system having the center of the image frame as an origin is (x, y), the pixel corresponding to a position of point (x, y) is I(x, y), R is a radius, and a cylindrical coordinate formed based on the radius R is (u, v)=(Rθ, v).