Engineering Commons^™

Quadtree-Based Processing Of Digital Images, Ramin Naderi

Dissertations and Theses

Image representation plays an important role in image processing applications, which usually. contain a huge amount of data. An image is a two-dimensional array of points, and each point contains information (eg: color). A 1024 by 1024 pixel image occupies 1 mega byte of space in the main memory. In actual circumstances 2 to 3 mega bytes of space are needed to facilitate the various image processing tasks. Large amounts of secondary memory are also required to hold various data sets.

In this thesis, two different operations on the quadtree are presented.

There are, in general, two types of data …

Simulation Of A Parallel Manufacturing Operations, Charles P. Cochran

Retrospective Theses and Dissertations

This thesis examines a manufacturing process using a real time interface with a 6502 microprocessor that gives the appearance of parallel processing. Two separate processes are operated, apparently simultaneously with an asynchronous interface between the two processes. An Apple microcomputer, an ISAAC data transfer system and a constructed simulation model are used to demonstrate this process. The model is constructed of Fischertechnik manufactured parts for the support framework, as well as gearing devices, small DC electric motors, and sensing devices in the form of photo-electric switches and single pole double throw switches physically activated by the constructed model. The software, …