Paper Info
Title
White and narrow band image compressor based on a new color space for capsule endoscopy
Abstract
In this paper, we present the design of a low power and hardware efficient image compressor integrated circuit for wireless capsule endoscopy application. The proposed compression algorithm supports dual-band imaging, that is, works on both white-band imaging (WBI) and narrow-band imaging (NBI). The scheme uses a novel color-space and simple predictive coding for optimized performance. Based on the nature of the narrow- and white-band endoscopic images and video sequences, several sub-sampling schemes are introduced. The proposed dual-band compressor is designed in such as way that it can easily be interfaced with any commercial low power image sensor that outputs RGB image pixels in a raster scan fashion, eliminating the need of large buffer memory and temporary storage. Both NBI and WBI reconstructed images have been verified by medical doctors for acceptability. Compared to other designs targeted to video capsule endoscopy, the proposed algorithm performs strongly with a compression ratio of 80.4% (for WBI) and 79.2% (for NBI), and a high reconstruction peak-signal-to-noise-ratio (over 43.7dB for both bands). The results of the fabricated chip are also presented.
Year
DOI
Venue
2014
10.1016/j.image.2013.12.001
Sig. Proc.: Image Comm.
Keywords
Field
DocType
proposed dual-band compressor,dual-band imaging,outputs rgb image pixel,proposed algorithm,proposed compression algorithm,new color space,narrow band image compressor,white-band imaging,commercial low power image,narrow-band imaging,capsule endoscopy,hardware efficient image compressor,white-band endoscopic image,image compression,medical imaging,color space
Computer vision,Color space,Image sensor,Medical imaging,Computer science,Raster scan,Compression ratio,Artificial intelligence,Pixel,Data compression,Image compression
Journal
Volume
Issue
ISSN
29
3
0923-5965
Citations 
PageRank 
References 
3
0.42
14
Authors
2
Name
Order
Citations
PageRank
Tareq Hasan Khan11096.87
Khan A. Wahid232738.08