Abstract
With the advancement of technology in communication network, it facilitated digital medical images transmitted to healthcare professionals via internal network or public network (e.g., Internet), but it also exposes the transmitted digital medical images to the security threats, such as images tampering or inserting false data in the images, which may cause an inaccurate diagnosis and treatment. Medical image distortion is not to be tolerated for diagnosis purposes; thus a digital watermarking on medical image is introduced. So far most of the watermarking research has been done on single frame medical image which is impractical in the real environment. In this paper, a digital watermarking on multiframes medical images is proposed. In order to speed up multiframes watermarking processing time, a parallel watermarking processing on medical images processing by utilizing multicores technology is introduced. An experiment result has shown that elapsed time on parallel watermarking processing is much shorter than sequential watermarking processing.
Highlights
The technological advancement in communication network has facilitated healthcare professionals across the world in accessing electronic medical records, such as medical images, and obtaining second opinions for high-quality diagnosis
Most of the watermarking research has been done on single frame medical image which is impractical in the real environment, where most of the ultrasound medical images consist of multiframes; a digital watermarking on multiframes medical images is proposed
The proposed parallel watermarking scheme required little effort to separate the ultrasound medical images into a number of parallel tasks due to the little dependency between those parallel tasks and achieved a speedup factor that is almost equivalent to the number of cores; for example, quad cores microprocessor will result in a speedup factor of approximately four, which means parallel watermarking process is approximately four times faster than sequential mode in quad cores microprocessor
Summary
The technological advancement in communication network has facilitated healthcare professionals across the world in accessing electronic medical records, such as medical images, and obtaining second opinions for high-quality diagnosis. Medical images are exposed to security threat such as tampering of images, which may lead to wrong diagnosis and treatment [1]; a digital watermarking on medical image is introduced. Most of the watermarking research has been done on single frame medical image which is impractical in the real environment, where most of the ultrasound medical images consist of multiframes; a digital watermarking on multiframes medical images is proposed. Watermarking could be applied on ultrasound medical images frame by frame sequentially but it would be time consuming for a large dataset; a parallel environment is necessary for speeding up multiframes watermarking process by utilizing multicore technology. The performance improvements gained by the use of a multicore processor largely depended on the software algorithms used and their implementation. Our work explores efficient parallel implementations of the digital watermarking scheme in multicore environment
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