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WSEAS TRANSACTIONS on
BIOLOGY and BIOMEDICINE

Issue 4, Volume 4, April 2007
Print ISSN: 1109-9518
E-ISSN: 2224-2902

 
 

 

 

 

 

 


Title of the Paper: A New Scheme of Image Watermarking Based on 5 /3 Wavelet Decomposition and Turbo-Code

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Authors: Chokri Chemak, Jean Christophe Lapayre and Mohamed Salim Bouhlel

Abstract: This paper is an attempt to describe a new scheme of image Watermarking based on 5/3 Wavelet decomposition and turbo-code. This new Watermarking algorithm is based on embedding mark (signature) in the multi-resolution field. For the purpose of increasing the image Watermarking robustness against attacks of an image transmission, we encode with a turbo code an image-embedded mark. This new scheme of image Watermarking is able to embed 2000 bits in medical images. Results of experiments carried out on a database of 30- 256 256 pixel-sized medical images show that Watermarks are robust to Noises, Filter attacks and JPEG Compression. The image degradation is measured by Relative Peak Signal to Noise Ratio (R.P.S.N.R.). Experimental results show that this unit of measurement is the best distortion metric witch is correlated with Human Visual System (H.V.S.); and therefore more suitable for digital Watermarking. In our paper, images are extracted from DICOM library. We use Matlab and its library as software to experiment our approaches and to validate our results

Keywords: Watermarking, multi-resolution field, Error Correcting Codes, Turbo code, R.P.S.N.R., Robustness.


Title of the Paper: The Development of a Mobile Emergency Healthcare Information System in Taiwan

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Authors: Bih-Yaw Shih, Wan-I Lee, Yi-Shun Chung and Ai-Wei Chen

Abstract: Nowadays the quality of healthcare has been improved gradually. However, the time consuming pre-hospital emergency process could sometimes cause many regrets. Therefore, the minimization of time required for providing primary care and consultation to patients is one of the crucial factors when trying to improve the healthcare delivery in emergency situations. If the Emergency Medical Technician (EMT) can hold on signs of life of patients immediately when accidents happened, higher quality of healthcare could be achieved. Mobile healthcare is a new paradigm that combines the evolution of emerging wireless communications and network technologies to connect healthcare anytime and anywhere. The purpose of the study is to develop a Mobile Emergency Healthcare Information System (MEHIS). A Standard Operation Procedure of Emergency Healthcare (SOPEH) is first planned. Then, the system is developed for EMT or families of patients to communicate with physicians in hospitals. Users can use their 3G mobile phone to transfer symptoms and information of the situation to JSP server which then quickly delivers information while providing proper emergency care at the prime time. Meanwhile, MEHIS can shorten emergency healthcare time and therefore enhance quality of emergency healthcare.

Keywords: Emergency healthcare, Mobile Emergency Healthcare Information System, 3G, EMT


   
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