Extending Fast Marching Method under Point Light Source Illumination and Perspective Projection

Author

Iwahori, Yuji ; Iwai, Kazuki ; Woodham, Robert J. ; Kawanaka, Haruki ; Fukui, Shinji ; Kasugai, Kunio

Author_Institution

Dept. of Comput. Sci., Chubu Univ., Kasugai, Japan

fYear

2010

fDate

23-26 Aug. 2010

Firstpage

1650

Lastpage

1653

Abstract

An endoscope is a medical instrument that acquires images inside the human body. An endoscope carries its own light source. Classic shape-from-shading can be used to recover the 3-D shape of objects in view. Recent implementations have used the Fast Marching Method (FMM). Previous FMM approaches recover 3-D shape under assumptions of parallel light source illumination and orthographic projection. This paper extends the FMM approach to recover the 3-D shape under more realistic conditions of endoscopy, namely nearby point light source illumination and perspective projection. The new approach is demonstrated through experiment and is seen to improve performance.

Keywords

biomedical optical imaging; endoscopes; medical image processing; shape recognition; 3D object shape recovery; endoscope; fast marching method; human body; image acquisition; medical instrument; orthographic projection; parallel light source illumination; perspective projection; point light source illumination; shape-from-shading; Biomedical imaging; Cameras; Endoscopes; Light sources; Lighting; Pixel; Shape; Endoscope; Fast Marching Method; Perspective Projection; Point Light Source Illumination; Shape Recovery;

fLanguage

English

Publisher

ieee

Conference_Titel

Pattern Recognition (ICPR), 2010 20th International Conference on

Conference_Location

Istanbul

ISSN

1051-4651

Print_ISBN

978-1-4244-7542-1

Type

conf

DOI

10.1109/ICPR.2010.408

Filename

5597248