Conventional chest radiography poses a challenging technical problem because of its requirement for simultaneous high-contrast display and wide-latitude recording across the entire image. We developed and evaluated a method of producing chest radiographs by using a tantalum air-interspace grid for highly efficient scatter rejection, wide-latitude X-ray film for recording the low-scatter image, ...

Digital images and video clips are becoming popular due to the increase in the availability of consumer devices that capture digital images and video clips. Digital content is also growing over the Internet. The increase of the digital content creates a need for userfriendly tools to browse through large volumes of digital material. In this paper we present a clustering based browsing algorithm...

abstract background: infertility is a serious problem in a couple’s life that affects their marriage relationships. so, dissatisfaction with sexual function resulting from interpersonal problems is common among these couples. this qualitative study aimed to explore the experiences of infertile women in their sexual life. materials and methods: this is a qualitative study with a phenomenological...

Recording of archaeological sites has long been studied by many scientific organizations. However, the analyses and evolution of human beings through rock art is one of the most challenging tasks in prehistoric archaeology, not only because of the unpredicted contribution to the understanding of the past but also because of the difficulties for appropriate recording. Tracing, rubbing and photog...

When we use a camera, we want the recorded image to be a faithful representation of the scene that we see—but every image is more or less blurry. Thus, image deblurring is fundamental in making pictures sharp and useful. A digital image is composed of picture elements called pixels. Each pixel is assigned an intensity, meant to characterize the color of a small rectangular segment of the scene....