Patent ID: 8154604
Filing Date: 2012-04-10
Classification: G06T,H04N

Abstract:
1. A process for detecting a camera's motion during shooting, comprising the steps of: a. providing an image data comprising consecutive first image frame and second image frame shot by the camera, wherein each of the first and second image frames comprises M number of macroblocks along a horizontal x axis and N number of macroblocks along a vertical y axis, thereby constituting a total number of MxN marcoblocks; b. comparing a marcoblock of the first image frame with a corresponding marcroblock of the second image frame to determine a motion vector MV having a component vector MVx along the x axis and a component vector MVy along the y axis; and c. calculating camera motion parameters of pan, tilt and zoom for the image data according to the following equations: wherein the camera motion parameter pan represents the camera's motion along the x axis, the camera motion parameter tilt represents the camera's motion along the y axis, and the camera motion parameter zoom represents the camera's motion of pulling away or closing on.