Data Processing Tasks in Wireless GI Endoscopy: Image-Based Capsule Localization & Navigation and Video Compression

Author

Bulat, J. ; Duda, K. ; Duplaga, M. ; Fraczek, R. ; Skalski, A. ; Socha, M. ; Turcza, P. ; Zielinski, T.P.

Author_Institution

AGH Univ. of Sci. & Technol., Krakow

fYear

2007

fDate

22-26 Aug. 2007

Firstpage

2815

Lastpage

2818

Abstract

The paper addresses data processing support that is required in capsule gastrointestinal endoscopy. First, capsule position estimation method using standard MPEG-7 image features (descriptors) is discussed. The proposed approach makes use of vector quantization, principal component analysis and neural networks. Next, new algorithms dedicated for virtual colonoscopy (VC) human body inspection are described. The VC images can be registered with endoscopic ones and help in capsule localization and navigation. Finally, an original, low- complexity, efficient image compression method, based on integer-to-integer 4x4 DCT transform, is presented and experimentally verified.

Keywords

biological organs; biomedical optical imaging; discrete cosine transforms; endoscopes; image coding; image registration; medical image processing; neural nets; principal component analysis; vector quantisation; virtual reality; MPEG-7 image features; capsule position estimation method; data processing; human body inspection; image compression method; image registration; image-based capsule localization; image-based navigation; integer-to-integer DCT transform; neural networks; principal component analysis; vector quantization; virtual colonoscopy; wireless gastrointestinal endoscopy; Data processing; Endoscopes; Gastrointestinal tract; MPEG 7 Standard; Navigation; Neural networks; Principal component analysis; Vector quantization; Video compression; Virtual colonoscopy; Algorithms; Capsule Endoscopy; Colon; Colonography, Computed Tomographic; Data Compression; Gastrointestinal Tract; Gastroscopy; Humans; Image Processing, Computer-Assisted; Stomach;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE

Conference_Location

Lyon

ISSN

1557-170X

Print_ISBN

978-1-4244-0787-3

Type

conf

DOI

10.1109/IEMBS.2007.4352914

Filename

4352914