This paper describes a parallel architecture for a variety of algorithms for video compression. It has been designed to meet the requirements of encoding and decoding according to the ITU-T standard H.263. The architecture is an implementation of the instruction systolic array (ISA) model which combines the simplicity of systolic arrays with the flexibility of a programmable parallel computer. ...

This paper presents an integrated systolic array design for implementing full-search block matching, 2-D discrete wavelet transform, and full-search vector quantization on the same VLSI architecture. The above three functions are prime essential but with large amount of computation in video compression. To meet real-time requirement, many systolic arrays are designed for individually performing...

A packing function is a bijection between a subset V ⊆ Nm and N, where N denotes the set of non negative integers N. Packing functions have several applications, e.g. in partitioning schemes and in text compression. Two categories of packing functions are Diagonal Polynomials and Box Polynomials. The bijections for diagonal ad box polynomials have mostly been studied for small values of m. In a...

The way combining intelligent technology with hardware technology to study real-world applications is one of the most important methodologies in the field of EHW. This paper designs a novel evolvable hardware engine for predictive lossless image compression in the perspective of hardware, and firstly implements the whole engine on reconfigurable hardware. As a result of the high-speed pipeline ...

background: hypertension is a risk factor for many diseases. nutritional methods are considered as major tools in lifestyle modification for lowering blood pressure. the present study was conducted to determine the level of dietary adherence in hypertensive patients. methods: this descriptive-analytical study was performed in 2015, on hypertensive patients who were referred to heart clinic of s...

Myoglobin (Mb) belongs to the family of vertebrate oxygen-binding haem proteins and is predominantly expressed in cardiac and red skeletal muscles that rely on aerobic metabolism to perform sustained work. Additional members of this protein family are of course haemoglobin, the red dye of blood, and the more recently discovered proteins neuroglobin and cytoglobin. Owing to the notoriously low s...

Hardware implementation of data compression algorithms is receiving increasing attention due to exponentially expanding network traffic and digital data storage usage. In this paper, we propose several serial one-dimensional and parallel two-dimensional systolic-arrays for Lempel–Ziv data compression. A VLSI chip implementing our optimal linear array is fabricated and tested. The proposed array...

New directions in computing and algorithms has lead to some new applications that have tolerance to imprecision. Although, These applications are creating large volumes of data which exceeds the capability of today’s computing systems. Therefore, researchers are trying to find new techniques to alleviate this crisis. Approximate Computing is one promising technique that uses a trade off between...