In this thesis, we present the TM3270 VLIW media-processor, the latest of TriMedia processors, and describe the innovations with respect to its prede- cessor: the TM3260. We describe enhancements to the load/store unit design, such as a new data prefetching technique, and architectural enhancements, such as additions to the TriMedia Instruction Set Architecture (ISA). Examples…
The thesis treats classification problems which are undersampled or where there exist an unbalance between classes in the sampling. The thesis is divided into three parts. The first two parts treat the problem of one-class classification. In the one-class classification problem, it is assumed that only examples of one of the classes, the target class,…
This thesis presents various aspects regarding the development of an ultrasound sensor systems for use in laparoscopic intervention. The accuracy achieved after using compensation technique for air flow disturbances or temperature variations remains in a convenient range of 200um. Considering this high accuracy, the flexibility and the ergonomics achieved for this system, the final device…
A counting sequence of length n is a list of all 2^n binary n-tuples (binary codewords of length n). The number of bit positions where two codewords differ is called the Hamming distance of these two codewords. The average Hamming distance of a counting sequence of length n is defined as the average Hamming distance…
The design of embedded computer systems for modern wireless communication devices finds itself under increasing technological and commercial pressures. This design crisis is fueled by an unrelenting growth in algorithmic complexity, which by far outpaces the growth in design productivity, thus making it increasingly difficult to design entire embed- ded systems. On the other hand,…
In this thesis, we attack the problem of identifying humans from their three dimensional facial characteristics. For this purpose, a complete 3D face recognition system is developed. We divide the whole system into sub-processes. These sub-processes can be categorized as follows: 1) registration, 2) representation of faces, 3) extraction of discriminative features, and 4) fusion…
This study compares the performances of various techniques for the differentiation and localization of commonly encountered features in indoor environments, such as planes, corners, edges, and cylinders, possibly with different surface properties, using simple infrared sensors. The intensity measurements obtained from such sensors are highly dependent on the location, geometry, and surface properties of the…
