Acquisition of ultrasound images is cheap and noninvasive as it does not require ionizing radiations as compared to other medical imaging techniques but the problem with these images lies in its inherent characteristics like speckle noise and low contrast. In this paper the performance of various image enhancement techniques are compared by applying them on B-Mode breast ultrasound images (BUS)...

We propose a simulation approach which applies time-stepped and fluid simulation techniques to accelerate large-scale simulations of mobile ad hoc networks (MANETs). We described the simulation modelling and parameterizing process according to the dynamic characteristics of MANETs. We also introduce the simulator SSim developed by the authors and present the experiment results. This research de...

Human faces are major identity mark. Face recognition is the active research area in real time applications. Face detection has many applications in biometrics, video surveillance , robotics, control of manmachines, photography, and image indexing. Many face recognition techniques are developed to recognize human features. In this paper the study and methodology of PCA (Principal Component Anal...

In this work, a multi-scale feature point detection algorithm in CT slices based on discrete curvelet transform is presented. Discrete curvelet transformation is applied to input CT slices and the behavior of curvelet coefficients in all the scales are examined. The information in the fine and detail levels which contains the edge and singularity details are processed to extract the feature poi...

Image enhancement merupakan prosedur yang digunakan untuk memproses gambar sehingga dapat memperbaiki atau meningkatkan kualitas agar selanjutnya dianalis tujuan tertentu. Ada banyak algoritma image diterapkan pada suatu gambar, salah satunya menggunakan structural similarity index measure (SSIM), ini berfungsi sebagai alat ukur dalam menilai bekerja dengan membandingkan fitur dari dan dijelask...

In order to solve the problems of different visual angles, such as large brightness and colour difference, obvious image splicing trace, an algorithm ring fusion based on correction is proposed in this paper. According paper, a Matlab toolbox was made for simulation experiment. Structural similarity (SSIM) used evaluate effectiveness method reducing illumination contrast difference mean value S...

This paper presents a novel block-based image coding algorithm which applies a tree-structured multitree dictionary and a perceptual-based rate distortion optimization scheme. While multitree dictionary is employed to support a very large number of different tilings, perceptual-based rate distortion optimization utilizes the SSIM metric, instead of popular MSE metric, to allocate bit rate accor...

Image processing is an important charge in image denoising as a process and component in various other process There are many ways to denoise an image. The ultimate idea of this paper is to acquiesce better results in terms of quality and in removal of different noises. This paper is compared with three methods NL Means, NL-PCA, and DCT. PSNR and SSIM are used for quantitative study of denoisin...

Migration to standardized formats is a common approach for the preservation of digital objects. To ensure the authenticity of the resulting artefacts and the validity of the migration, quality assurance is essential. For large-scale migration, automated quality assurance processes are an essential prerequisite. This paper focuses on the migration processes of born-digital photographs. We descri...