Three-dimensional handwriting recognition method based on direction chain code

• Main Authors: YU HAIYANG, CHEN JIAN, GAN TIAN, LIU GUOHONG, CAO DEKUN, CHEN RUONAN, YAN XUEZHI, SUN XIAOYING, WEN QUAN
• Format: Patent
• Language: Chinese; English
• Published: 26.09.2017
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The invention relates to a three-dimensional handwriting recognition method based on direction chain code and belongs to the field of human-computer interaction. The method includes: building a three-dimensional handwriting model by collecting spatial position information of a pen in a handwriting input passage and adopting direction chain code to describe moving track of the pen; matching the three-dimensional handwriting model with a set model in a system to recognize interaction intention of a user in real time. The method can recognize some handwriting operations of the user in three-dimensional space in real time, has certain universality and expandability and is supportive of three-dimensional book space recognition, and naturality of a human-computer interaction platform is improved. A coding mode through the direction chain code is applied, so that the method is simple and convenient in algorithm, small in calculation amount and high in instantaneity; accurate recognition can be realized by denoising