Pictures of Dominick Purpura

Constraining Pictures with Pictures

This paper presents a visual language called Miro for specifying and restricting operating system security configurations. A Miro picture specifies exactly what rights users have on files. A Miro constraint, also stated visually, restricts the set of Miro pictures which are considered legal. Such constraints on pictures give an exact specification of security policies and a practical method for...

Tla in Pictures Tla in Pictures

The charter of SRC is to advance both the state of knowledge and the state of the art in computer systems. From our establishment in 1984, we h a v e performed basic and applied research to support Digital's business objectives. Our current w ork includes exploring distributed personal computing on multiple platforms, networking, programming technology, system modelling and management technique...

Epidemiology of Idiopathic Thrombocytopenic Purpura in Children

Abstract Background Immune thrombocytopenic purpura (ITP) is a common autoimmune bleeding condition in children that is characterized by a decrease in the platelet count. The aims of this study were to define epidemiologic features of patients with primary ITP who were admitted to Mofid Children's Hospital, Tehran, Iran, in a 5-year period. Methods We retrospectively studied the records of ...

Coding of Still Pictures

Polynomial Representation of Pictures

In many image processing applications, the discrete values of an image can be embedded in a continuous function. This type of representation can be useful for interpolation, geometrica! transformations or special features extraction. Given a rectangular M x N discrete image (or sub-image), it is shown how to compute a continuous polynomial function that guarantees an exact fit at the considered...