An overview of working with digital X–ray sensor equipment digital intraoral sensors (See Figure 1, opposite page) and this has given me the opportunity to develop and hone a vast array of tips and techniques to help make capturing images with digital intraoral sensors more comfortable and more consistent than ever before. Before we get into specific sensor placement tips, here are some general...

| We describe a VLSI{based data acquisition to perform X{Y coincidences with a two side microstrip digital detector, optimized for applications in digital mammogra-phy. A two components chip set is described in detail: a low noise Front{End analog ampliier and an 80 MHz synchronous digital encoder. These two components can be used to solve the problems arising with the use of a large number of ...

BACKGROUND Denoising with edge preservation is very important in digital x-ray imaging since it may allow us to reduce x-ray dose in human subjects without noticeable degradation of the image quality. In denoising filter design for x-ray imaging, edge preservation as well as noise reduction is of great concern not to lose detailed spatial information for accurate diagnosis. In addition to this,...

-The performance of IC interconnects has been stretched tremendously recently years by high speed integrated circuit systems. Even though S-parameters are popularly used for the characterization of IC interconnects, their modeling has to consider the existence of active devices, such as buffers and drivers. The I/O model is difficult to obtain due to the IP protection and limited information. I...

The purpose of this study was to determine whether the interpretation of microcalcifications assessed on images zoomed (x 2.0) from digital mammograms is at least equivalent to that from digital magnification mammography (x 1.8) with respect to diagnostic accuracy and image quality. Three radiologists with different levels of experience in mammography reviewed each full-field digital mammograph...

Of late, the amount of digital X-ray images that are produced in hospitals is increasing rapidly. Efficient storing, processing and classifying X-ray images have thus become an important research topic. Due to the increase in medical digital images, there is a rising need of managing this data properly and accessing them accurately. To overcome the difficulties of manual classification, the aut...

A Niven number is a positive integer that is divisible by its digital sum. That is, if n is an integer and s(n) denotes the digital sum of n, then n is a Niven number if and only if sin) is a factor of n. This idea was introduced in [1] and investigated further in [2], [3], and [4]. One of the questions about the set N of Niven numbers was the status of -. . Njx) lim ——^5 x->-<» X where Nix) de...

New x-ray radiographic systems based on large-area flat-panel technology have revolutionized our capability to produce digital x-ray images. However, these imagers are extraordinarily expensive compared to the systems they are replacing. Hence, there is a need for a low-cost digital imaging system for general applications in radiology. A novel potentially low-cost radiographic imaging system ba...

The purpose of this study is to investigate the impacts of added filtration on the contrast-detail detectability of a digital X-ray imaging system for small animal studies. A digital X-ray imaging system specifically designed for small animal studies was used. This system is equipped with a micro X-ray source with a tungsten target and a beryllium window filtration and a CCD-based digital detec...