Reliable transmission and storage of medical images with patient information using error control codes

Author

Nayak, Jagadish ; Bhat, P. Subbanna ; Kumar, M. Sathish ; Acharya, U.R.

Author_Institution

Dept. of Electr. & Comput. Eng., Manipal Inst. of Technol., India

fYear

2004

fDate

20-22 Dec. 2004

Firstpage

147

Lastpage

150

Abstract

A new method for compact storage and transmission of medical images with concealed patient information in noisy environment is evinced. Digital watermarking is the technique adapted here for interleaving patient information with medical images. The patient information, which comprises of text data and signal graph, is encrypted to prevent unauthorized access of data. The latest encryption algorithm (Rijndael) is used for encrypting the text information. Signal graphs (ECG, EEG EMG etc) are compressed using DPCM technique. To enhance the robustness of the embedded information, the patient information is coded by error correcting codes (ECC) Reed Solomon (RS) codes. The noisy scenario is simulated by adding salt and pepper (S&P) noise to the embedded image. For different signal to noise ratio (SNR) of the image, bit error rate (BER) and number of character altered (NOCA) for text data and percentage distortion (PDIST) for the signal graph is evaluated. It is elicited that coded systems can perform better than the uncoded systems.

Keywords

Reed-Solomon codes; cryptography; data compression; data encapsulation; differential pulse code modulation; error correction codes; error statistics; image coding; interleaved codes; medical image processing; telecommunication security; visual communication; watermarking; BER; DPCM technique; ECC; PDIST; Reed Solomon code; bit error rate; differential pulse code modulation; digital watermarking; error control code; error correcting code; image embedding; medical image storage; patient information encryption; percentage distortion; reliable transmission; salt-pepper noise; signal graph compression; text data; Biomedical imaging; Bit error rate; Cryptography; Electrocardiography; Error correction; Image storage; Interleaved codes; Signal to noise ratio; Watermarking; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

India Annual Conference, 2004. Proceedings of the IEEE INDICON 2004. First

Print_ISBN

0-7803-8909-3

Type

conf

DOI

10.1109/INDICO.2004.1497726

Filename

1497726