Application of reflection transform imaging in handwriting trace detection

Wei Wei; Lihua Huang; Xinran Zhu; Huijie Huang

doi:10.1117/12.2533880

17 May 2019 Application of reflection transform imaging in handwriting trace detection

Wei Wei, Lihua Huang, Xinran Zhu, Huijie Huang

Proceedings Volume 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019); 1117032 (2019) https://doi.org/10.1117/12.2533880
Event: Fourteenth National Conference on Laser Technology and Optoelectronics, 2019, Shanghai, China

Abstract

Handwriting is a special kind of trace, which carries important information such as writing content, writing tools and writing habits. Reflection transform imaging (RTI) is a computational photography method that creates an interactive image to further display the 2D and 3D texture features of the inspection surface. In this paper, Reflection Transform Imaging is applied to study the colored and colorless handwriting traces produced by pen and water-based pen. By combining different lighting directions and rendering modes, not only the writing content of different handwriting traces can be obtained, but also the three-dimensional texture information of handwriting traces can be obtained. Especially for the colorless handwriting trace, the two-dimensional and three-dimensional texture of the handwriting detail features can reveal the differences between different writing tools and show the shape of the brush. The experimental results show that reflection transform imaging technique can clearly display the colored and colorless handwriting traces, and it can provide powerful help for the case detection by revealing various information hidden in the handwriting traces.

Citation Download Citation

Wei Wei, Lihua Huang, Xinran Zhu, and Huijie Huang "Application of reflection transform imaging in handwriting trace detection", Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 1117032 (17 May 2019); https://doi.org/10.1117/12.2533880

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available