Mohsen Ashourian

Bio: Mohsen Ashourian is an academic researcher from Islamic Azad University, Isfahan. The author has contributed to research in topics: Digital watermarking & Watermark. The author has an hindex of 10, co-authored 73 publications receiving 441 citations. Previous affiliations of Mohsen Ashourian include Islamic Azad University of Majlesi & Universiti Teknologi Malaysia.

Computer-aided Diagnosis of Skin Cancer: A Review.

Abstract: Cancer is currently one of the main health issues in the world. Among different varieties of cancers, skin cancer is the most common cancer in the world and accounts for 75% of the world's cancer. Indeed, skin cancer involves abnormal changes in the outer layer of the skin. Although most people with skin cancer are healed, it is one of the major concerns of people due to its high prevalence. Most types of skin cancers grow only locally and invade adjacent tissues, but some of them, especially melanoma (cancer of the pigment cells), which is the rarest type of skin cancer, may spread through the circulatory system or lymphatic system and reach the farthest points of the body. Many papers have been reviewed about the application of image processing in cancer detection. In this paper, a literature review on the automatic skin cancer detection and also different steps of such a are discussed process based on the implantation capabilities.

Improved Dynamic Range Microwave Photonic Instantaneous Frequency Measurement Based on Four-Wave Mixing

Abstract: An improved dynamic range instantaneous frequency measurement system based on four-wave mixing effect in a highly nonlinear fiber was practically demonstrated. A closed-form model was developed to predict the behavior of the system. The model predicted that the system output would have a low frequency voltage which was a function of RF input frequency. The system performance was also practically demonstrated. The system characterization showed a 0.04-40-GHz frequency measurement range with 51-dB dynamic range for 100-MHz measurement error at the end of the band. A maximum relative measurement error of 0.35% was achieved over the entire frequency range. This dynamic range was achieved by employing the lock-in amplification technique.

Computer and Robot Vision

Abstract: Computer and Robot Vision Vol. 1, by R.M. Haralick and Linda G. Shapiro, Addison-Wesley, 1992, ISBN 0-201-10887-1.

Study and comparison of various image edge detection techniques

Abstract: Edge detection is one of the most commonly used operations in image analysis, andthere are probably more algorithms in the literature for enhancing and detecting edgesthan any other single subject. The reason for this is that edges form the outline of anobject. An edge is the boundary between an object and the background, and indicatesthe boundary between overlapping objects. This means that if the edges in an image canbe identified accurately, all of the objects can be located and basic properties such asarea, perimeter, and shape can be measured. Since computer vision involves theidentification and classification of objects in an image, edge detections is an essential tool. In this paper, we have compared several techniques for edge detection in image processing.

IEEE Transactions on Microwave Theory and Techniques and Antennas and Propagation Announce a Joint Special Issue on Ultra-Wideband (UWB) Technology

Abstract: Before the emergence of ultra-wideband (UWB) radios, widely used wireless communications were based on sinusoidal carriers, and impulse technologies were employed only in specific applications (e.g. radar). In 2002, the Federal Communication Commission (FCC) allowed unlicensed operation between 3.1–10.6 GHz for UWB communication, using a wideband signal format with a low EIRP level (−41.3dBm/MHz). UWB communication systems then emerged as an alternative to narrowband systems and significant effort in this area has been invested at the regulatory, commercial, and research levels.

Photonics for microwave measurements

Abstract: R EIEW A R TCLE Abstract As an emerging topic, photonic-assisted microwave measurements with distinct features such as wide frequency coverage, large instantaneous bandwidth, low frequencydependent loss, and immunity to electromagnetic interference, have been extensively studied recently. In this article, we provide a comprehensive overview of the latest advances in photonic microwave measurements, including microwave spectrum analysis, instantaneous frequency measurement, microwave channelization, Doppler frequency-shift measurement, angle-of-arrival detection, time–frequency analysis, compressive sensing, and phase-noise measurement. A photonic microwave radar, as a functional measurement system, is also reviewed. The performance of the photonic measurement solutions is evaluated and compared with the electronic solutions. Future prospects using photonic integrated circuits and software-defined architectures to further improve the measurement performance are also discussed.

Service quality perception and customer satisfaction in Islamic banks of Pakistan: the modified SERVQUAL model

Abstract: The aim of this study is to measure the relationship between service quality and customer satisfaction among the customers of Pakistani Islamic banks. This study employed a modified SERVQUAL model by introducing a unique dimension of compliance in the context of service industry. A self-administered questionnaire-based field survey was conducted with the help of modified SERVQUAL dimensions. Data were gathered from 450 walk-in customers of Islamic bank. The sample data were statistically analysed through exploratory factor analysis followed by confirmatory factor analysis (CFA) and structural equation modelling (SEM) analysis to determine the service quality perception and customer satisfaction. Namely, CFA is used in order to test the model validity, while SEM is used for testing the impact of different service quality dimensions on customer satisfaction. Results revealed that the multidimensional service quality scale is positively and significantly associated with the unidimensional scale of customer s...