MARKER-BASED PIXEL REPLACEMENT

摘要

A videographic system uses a videographic camera to obtain a temporal series of digital images of a scene and substitutes the video appearance of display boards in the scene with sub-images from a database. 3D vectorized tracking markers disposed rigidly with respect to the display boards enable a controller to geometrically adapt the sub-images for changing perspectives of the videographic camera. The markers may have a rotationally asymmetric pattern of contrasting portions with perimeters that have sections that are mathematically describable curves. The markers may be monolithically integrated with the display boards. The adapted images may be supplied to an interactive display system, along with pixel coordinate information about the sub-images and resource location identifiers associated with the sub-images. This allows linking to a networked resource by selecting the sub-image with a digital pointing and selecting device. The system may be configured to replace televised advertising board information with geometrically adapted user-targeted advertisements.

主权项

1. A videographic system comprising:
a. a videographic camera configured for obtaining a temporal series of input digital images of a scene within a field of view of the videographic camera; b. a controller disposed and configured for receiving the temporal series of input digital images of the scene from the videographic camera; c. at least one display board disposed within the field of view of the videographic camera; d. at least one vectorized tracking marker disposed in fixed three-dimensional spatial relationship with respect to the at least one display board; e. a database accessible by the controller, the database containing:
i. at least one set of virtual sub-images associated with the at least one display board; andii. information about the three-dimensional spatial relationship between the at least one display board and the at least one tracking marker; f. a memory accessible by the controller, and g. software stored in a non-volatile form in the memory, wherein the software when executed by the controller is capable of replacing in at least one of the input digital images input pixels associated with the at least one display board with pixels from a virtual sub-image selected from among the at least one set of virtual sub-images.