Digital radiology leads to a growing amount of medical images which impose severe demands on networking and storage resources. These requirements can be met using content-orientated image compression which reduces the amount of data while preserving the diagnostic information. This paper presents a new method for automated vessel segmentation which can be used for both, decision support systems...

background the first commercial system for digital radiography was introduced in 1987, and it has evolved a great deal since then. currently, it is possible to enhance images in digital radiography. objectives the aim of this study is to evaluate the diagnostic accuracy of image enhancement in direct digital radiography as it relates to interproximal carries assessment. conclusions using these ...

OBJECTIVES The purpose of the present study was to determine the measurement accuracy and subjective image quality for periodontal disease diagnosis when using two X-ray tube voltages with a digital photostimulable storage phosphor sensor. MATERIAL AND METHODS A digital photostimulable storage phosphor (PSP) sensor (Vistascan) and a multipulse X-ray generator (Prostyle Intra) with two tube vo...

Over the past decade Video and Image data is accumulated in the storage media of various commercial organizations, government and educational Institutions. Events are organized round the year in these organizations and are recorded through the digital devices installed at the event venues. Eventually the data is piled up in the electronic vaults and the end-users are unaware of the implications...

As the proliferation of digital computational systems continue to expand, increasingly complex technologies emerge, including those regarding large, enterprise-wide, information storage and retrieval systems. Within this study, we examine four contemporary enterprise storage technologies. Our examination of these technologies is presented with an overview of the technological features of each o...

A central task in multimedia systems is image management (storage and retrieval). As information is disseminated across vast networks, such as the Internet, methods of locating authored media are desirable. Digital watermarks provide a means to embed copyright and other information for identification and tracking. However, many watermarking techniques are vulnerable to distortion. We provide a ...

Without careful long-term preservation digital data may be lost to a number of factors, including physical media decay, lack of suitable decoding equipment, and the absence of software. When raw data can be read but lack suitable annotations as to provenance, the ability to interpret them is more straightforward if they can be assessed through simple visual techniques. In this regard digital im...

The phenomeal increases in the generation, processing, and transmission of digital images have created increasing demands on the storage capacities, the processing speeds, and on the bandwidth of communication. Typical applications include teleradiology, digital libraries, satellite imagery for earth resources, multimedia databases, and several others. Lossy image compression techniques enable ...

Currently, digital still image cameras offer the user little flexibility. After initially selecting the number of images to be stored (from a limited number of possible settings), this selection cannot easily be changed at a later time. Furthermore, when only a few pictures have been taken, a large part of the storage capacity may remain unused (whereas it could have been used to improve image ...

The primary considerations in imaging living cells in the microscope with a digital camera are detector sensitivity (signal-to-noise), the required speed of image acquisition, and specimen viability. The relatively high light intensities and long exposure times that are typically employed in recording images of fixed cells and tissues (where photobleaching is the major consideration) must be st...