In recent years there has been renewed interest in the use of flexible arrays of fine-grained computational elements to perform logical functions. This interest has been sparked by the technological advancement of very large-scale integrated circuits in the form of field-programmable gate arrays (FPGAs). Although logic mapping to regular arrays of gates in integrated chip form has only been pra...

A cellular logic image processor employing 192 cells in a 16 by 12 hexagonal array is described . The processor has been constructed and its performance assessed . The various classes of functions which can be implemented in the cellular array are discussed and sample programs explained in detail . Cellular array Pattern recognition Image processing Parallel processing Binary images

Hierarchical structum occurs in biological vision systems and there is good reason to incorporate it into a model of computation for processing binary images. A mathematical formalism is presented which can describe a wide variety of operations useful in image processing and graphics. The formalism allows for two kinds of simple transformations on the values (called pyramids) of a set of cells ...

The conti nued scali ng of integ rated circu it techn ology at its curre nt Moore s Law rate could lead to circu its conta ining over a billi on trans istors with 20 nanom eter featu res by the year 2015. While the progr ess in elect ronics thus far has relie d on the scali ng of trans istors and on an incre asingly compl ex maze of inter connecting wires , futur e circu itry will requi re a ma...

Synthetic cellular logic gates are primarily built from gene circuits owing to their inherent modularity. Single proteins can also possess logic gate functions and offer the potential to be simpler, quicker, and less dependent on cellular resources than gene circuits. However, the design of protein logic gates that are modular and integrate with other cellular components is a considerable chall...

Simple cellular logic circuits have been built by engineering the DNA of host cells. Similar to systems found in nature, these circuits use repressor protein concentrations as logic signals; a gate’s input repressors interact with the cell’s DNA to influence the production of the gate’s output repressors. A limitation in building these circuits is the number of unique repressor proteins availab...