Interactive input system, interactive board therefor and methods

摘要

An interactive board comprises an interactive surface; at least one user selectable element; and processing structure in communication with at least one imaging device and configured to process data received from said at least one imaging device to locate at least one pointer positioned in proximity with said interactive surface and update digital ink according to pointer location, said processing structure being further configured to send said digital ink to one or more devices in communication with the interactive board in response to selection of said at least one user selectable element.

主权项

1. An interactive board comprising:
an interactive surface; at least one imaging device; at least one illumination source proximate the periphery of said interactive surface; at least one user selectable element; and processing structure in communication with the at least one imaging device and the at least one illumination source, the processing structure configured to process data received from said at least one imaging device to locate at least one pointer positioned in proximity with said interactive surface and update digital ink according to pointer location,
wherein—
the at least one imaging device is configured to capture a first image frame and a second image frame within an operation cycle,the first image frame is captured with the at least one illumination source turned on,the second image frame is captured with the at least one illumination source turned off,after detecting illumination provided by the at least one pointer at the pointer location within the second image frame, the processing structure updates the digital ink by generating digital ink corresponding to the pointer location;after detecting no illumination provided by the at least one pointer at the pointer location within the first image frame, the processing structure updates the digital ink by erasing digital ink corresponding to the pointer location; andsaid processing structure being further configured to send said digital ink to one or more devices in communication with the interactive board in response to selection of said at least one user selectable element.