Orthodontic arch wire error evaluation method based on matrix norm

The invention discloses an orthodontic arch wire error evaluation method based on a matrix norm, relates to the technical field of orthodontic arch wire error evaluation, and aims at error evaluation of an orthodontic arch wire curve containing a special functional curve by utilizing geometric meani...

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Hauptverfasser: JIANG JINGANG, QIU ZHIXIAN, WU DIANHAO, ZHANG JIAWEI, WANG KAIRUI, ZHANG YONGDE
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses an orthodontic arch wire error evaluation method based on a matrix norm, relates to the technical field of orthodontic arch wire error evaluation, and aims at error evaluation of an orthodontic arch wire curve containing a special functional curve by utilizing geometric meanings of the matrix norm and a vector norm. Therefore, the orthodontic arch wire error evaluation method based on the matrix norm is established. The method is characterized by comprising the following steps: judging the deviation between a theoretical orthodontic arch wire and an actual orthodontic arch wire and calculating the number of bending points exceeding an envelope surface; judging an actual orthodontic arch wire component vector coincidence degree matrix; calculating an actual orthodontic arch wire deviation value based on the coincidence degree matrix norm; and calculating an F-norm of the overlap ratio matrix to obtain an error value between a theoretical orthodontic arch wire and an actual orthodontic a