Digital Breast Tomosynthesis (DBT) is a technology that creates three dimensional (3D) images of breast tissue. Tomosynthesis mammography detects lesions that are not detectable with other imaging systems. If image reconstruction time is in the order of seconds, we can use Tomosynthesis systems to perform Tomosynthesis-guided Interventional procedures. This research has been designed to study u...

It is foreseeable that the 100 Gb/s/ $\lambda$ and beyond passive optical network (PON) will be required in future access networks to meet explosive growth of data traffic. The coherent systems could a promising solution for 100G PON. C...

The FFT is commonly used essential tool in digital signal processing applications .The adders used in Conventional Fast Fourier transform(FFT) are no longer appropriate for the reason that of its degraded rapidity concert. There are many dissimilar kinds of fast adders such as Carry Select Adder, Carry Save Adder and Carry Look Ahead Adder have been used for Fast Fourier Transform. However, the...

background: breast cancer is one of the most important diseases in females. malaysian women have not excluded. according to the malaysian oncology society [1], about 4% of women (who are 40 years old and above) have involved by breast cancer. masses and microcalcifications are two important signs for breast cancer diagnosis on mammography. according to our estimation, radiologists could diagnos...

quantum-dot cellular automaton (qca) is a novel nanotechnology with a very different computational method in compared with cmos, whereas placement of electrons in cells indicates digital information. this nanotechnology with specifications such as fast speed, high parallel processing, small area, low power consumption and higher switching frequency becomes a promising candidate for cmos technol...

With the continuous development of computer science and technology, the field of Image processing is considered as a very active area of research. Digital Image Processing refers to processing of digital images by means of digital computer. The aim is to produce digital images with better contrast and hidden details. For this purpose, Image Enhancement techniques that process an input image so ...

Traditionally, the usual multipliers are used to multiply signals by a constant, but multiplication constant can be considered as special operation requiring development of specialized multipliers. Different methods being developed accelerate multiplications. A large list implement on group bits. The most known one is Booth’s algorithm, which implements two-digit multiplication. We propose modi...

Fast multipliers are essential parts of digital signal processing systems. The speed of multiply operation is of great importance in digital signal processing as well as in general purpose processors today especially since the media processing took off. We present a Fast fourier transform implementation using Twin precision technique. The twin precision technique can reduce the power dissipatio...