| Interactive whiteboard is a kind of external computer equipment for teaching,conference, training and presentation. Interactive whiteboard is based on the computertechnology, multimedia technology, embedded technology and software developmenttechnology. Interactive whiteboard has great significance as the mouse. The articledesign an interactive whiteboard software system, which is composed of coordinateconversion program and digital interactive platform together.First of all, the paper introduces the different interactive whiteboard techno logiesand discusses the coordinate transformation algorithm. Then, based on severalcommonly used coordinate conversion algorithm, the article figures out theirdeficiencies while used as coordinate algorithm on interactive whiteboard. The articleproposes a method of the differential affine transformation to coordinate which hasachieved the success. The experimental data proves the new method used affinetransformation has agility with speed and accuracy of positioning accuracy.In addition, the paper designs and realizes a digital interactive platform, whichaims at common functions used in meeting and teaching. The article introduces thesoftware system interface and specific functional modules in detail. |
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