Marker less planar textured geometric object monitoring method for e.g. virtual visit of museum, involves receiving image of video flow, and evaluating position and orientation of object to be monitored in image from key frame

摘要

#CMT# #/CMT# The method involves receiving an image of a video flow, where the image includes an object to be monitored. A position and orientation of the object are determined from previously determined image blocks. Each image block is associated to location of the object. Another image of the video flow is received. A position and orientation of another object to be monitored in the latter image are evaluated from a key frame. The key frame represents the former image, position and orientation of the former object. #CMT# : #/CMT# Independent claims are also included for the following: (1) a computer program comprising instructions for implementing a geometric object monitoring method (2) an information storage medium comprising computer program code instructions for implementing the geometric object monitoring method (3) a device for monitoring a geometric object of a real scene. #CMT#USE : #/CMT# Method for monitoring a marker less planar textured geometric object of a real scene represented in images of a video flow in an augmented reality application e.g. Tamagoshi type game application, audiovisual presentation or virtual visit of museum or building, and in a mobile apparatus e.g. personal digital assistant, mobile telephone or other device provided with imaging sensor, using a monitoring device (claimed) e.g. micro-computer, work station or game console. #CMT#ADVANTAGE : #/CMT# The method permits automation of initialization of the augmented reality application by automatic monitoring of the geometric object in the video flow in real time. The method permits re-initialization of the reality application when the object to be monitored is lost. The method implements a monitoring application without requiring any specialist, enables reutilization of the monitoring application in a standard manner, and improves interactivity in gaming application. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a flow chart of an algorithm for monitoring a marker less planar textured geometric object.'(Drawing includes non-English language text)'.