Digital Radiography

Freedman, Matthew T.; Artz, Dorothy Steller

doi:10.1007/978-1-4612-1402-1_8

Cited by 2 publications

(3 citation statements)

References 24 publications

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“…Therefore to some extent the onus is on the Ôowner' of the data to indicate to the world which of that data he or she wants to protect. 154 Such restrictions also play an important role in limiting the scope of any legal protection of information. It may be argued that such a requirement discriminates unfairly against those who do not employ a security system.…”

Section: Additional Elementsmentioning

confidence: 99%

Data Theft? Cybercrime and the Increasing Criminalization of Access to Data

Clough

2011

Crim Law Forum

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Section: Additional Elementsmentioning

confidence: 99%

Data Theft? Cybercrime and the Increasing Criminalization of Access to Data

Clough

2011

Crim Law Forum

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“…3 We have implemented two contrast enhancement algorithms: (1) window/level to rescale contrast and (2) adaptive unsharp masking to enhance mid-to high-frequency signals. As an additional contrast enhancement method, we have also included a general lookup table (LUT) function, applying a selected LUT to the image.…”

Section: Image Enhancement Algorithmsmentioning

confidence: 99%

“…The main advantage of CR and DR in a picture archiving and communications system (PACS) environment over traditional film-based systems is the separation of image capture, processing, storage, and display, allowing for the individual optimization of each of these steps. 3 With decreasing reimbursement rates and increasing competition among diagnostic imaging providers, many radiology departments are faced with a challenging situation to reduce staff and operational costs while maintaining or increasing the quantity and quality of imaging services. 4 Thus, many institutions are trying to increase the productivity of the radiology department.…”

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confidence: 99%

Interactive Image Enhancement of CR and DR Images

et al. 2004

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There is continual pressure on the radiology department to increase its productivity. Two important links to productivity in the computed/digital radiography (CR/DR) workflow chain are the postprocessing step by technologists and the primary diagnosis step by radiologists, who may apply additional image enhancements to aid them in diagnosis. With the large matrix size of CR and DR images and the computational complexity of these algorithms, it has been challenging to provide interactive image enhancement, particularly on full-resolution images. We have used a new programmable processor as the main computing engine of enhancement algorithms for CR or DR images. We have mapped these algorithms to the processor, maximally utilizing its architecture. On a 12-bit 2688 x 2688 image, we have achieved the execution time of 465A ms for adaptive unsharp masking, window/level, image rotate, and lookup table operations using a single processor, which represents at least an order of magnitude improvement compared to the response time of current systems. This kind of performance facilitates rapid computation with preset parameter values and/or enables truly interactive QA processing on radiographs by technologists. The fast response time of these algorithms would be especially useful in a real-time radiology setting, where the radiologist's waiting time in performing image enhancements before making diagnosis can be greatly reduced. We believe that the use of these processors for fast CR/DR image computing coupled with the seamless flow of images and patient data will enable the radiology department to achieve higher productivity.

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Digital Radiography

Cited by 2 publications

References 24 publications

Data Theft? Cybercrime and the Increasing Criminalization of Access to Data

Data Theft? Cybercrime and the Increasing Criminalization of Access to Data

Interactive Image Enhancement of CR and DR Images

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