Improvements to the TCVD method to segment hand-drawn sketches

作者：

Highlights：

• This paper presents two important improvements to earlier TCVD method, TCVD-Revised.

• TCVD-R approximates the stroke to piece wise parametric cubic curves.

• New mathematical conditions to detect corners using a new discriminatory function.

• Obtaining of curves independent from the scale by means of two new parameters.

• TCVD-R improves accuracy in corner and tangent points over earlier TCVD approach.

摘要

•This paper presents two important improvements to earlier TCVD method, TCVD-Revised.•TCVD-R approximates the stroke to piece wise parametric cubic curves.•New mathematical conditions to detect corners using a new discriminatory function.•Obtaining of curves independent from the scale by means of two new parameters.•TCVD-R improves accuracy in corner and tangent points over earlier TCVD approach.

论文关键词：Corner vertices detection,Tangent points detection,Sketch recognition,Stroke segmentation,Curvature functions,Natural interfaces

论文评审过程：Received 30 July 2015, Revised 16 June 2016, Accepted 19 October 2016, Available online 21 October 2016, Version of Record 28 October 2016.

论文官网地址：https://doi.org/10.1016/j.patcog.2016.10.024