| 摘要 |
An AR image processing apparatus comprises a camera (1), a storage, an AR marker recognition based first AR analyser (3A), a natural feature tracking based second AR analyser (3B), a CG rendering unit (5) and a display unit (7). The camera (1) captures a first captured image of a scene in a first field of view which includes an AR marker and its surroundings and a second captured image of a scene in a second field of view which includes at least some of the surroundings which included in the first captured image. The storage stores an image data of a CG object. The AR marker recognition based first AR analyser (3A) obtains the first captured image, carries out an AR marker recognition process to find out an AR marker image from the first captured image and determine a position, posture, and scale of the AR marker image in a first view volume space defined in a first coordinate system of this first AR analyser (3A). The natural feature tracking based second AR analyser (3B) obtains the first captured image and data of the determined position, posture, and scale of the AR marker image in the first view volume space, calculates a position, posture, and scale of the AR marker in a second view volume space defined in a second coordinate system of the second AR analyser (3B) corresponding to a current position, center axis direction and field of view of the camera (1), obtains the second captured image, and carries out a natural feature tracking process between the first and the second captured images to determine a position, posture, and scale of the AR marker image in the second captured image in the second view volume space of the second AR analyser (3B). The CG rendering unit (5) reads out the image data of the CG object corresponding to the AR marker from the storage, reproduces an image of the CG object corresponding to the calculated position, posture, and scale in the second view volume space and composites the image of the CG object with the second captured image of the camera (1). The display unit (7) displays the composite image. |
