By introducing of digital techniques, forensic document examiners has been encouraged to work with better accuracy in non-destructive ways. The aim of this study was to present a non-destructive, accessible, economic (affordable), user friendly, portable, useful and easy technique for specifying the order of crossing lines of ink stroke and printed text. The intersections of LaserJet and In...

A universal digital holographic microscope to measure shape and displacement of microelement and MEMS (MicroElectroMechnacalSystems) is presented. This device is designed to exploit a measurement for MEMS with either a smooth or a rough surface. The method is based on digital laser interferometry and digital laser speckle interferometry (TV holography) incorporated with optoelectronic devices i...

The Virtual Microscope is being designed as an integrated computer hardware and software system that generates a highly realistic digital simulation of analog, mechanical light microscopy. We present our work over the past year in meeting the challenges in building such a system. The enhancements we made are discussed, as well as the planned future improvements. Performance results are provided...

Phase imaging provides intensity contrast to visualize transparent samples such as found in biology without any staining. Among them, digital holographic microscopy (DHM) is a well-known quantitative phase method. Lensfree implementations of DHMs offer the added advantage to provide large field of views (several mm2 compared to several hundred μm2) and more compact setups that traditional DHM w...

We describe a simple, economical, and highly practical technique for taking digital photographs of specimens visualized through a light microscope. Most models of light microscope and compact digital camera, and even some cameraphones, can be used. The technique is quick to learn and can easily be performed in a resource-poor setting. It can be used to assist with diagnosis in remote areas and ...

Microscopic images of haematological cells are now routinely photographed using digital cameras. Advances in technology mean that the quality of such digital images can now approach that viewed through a microscope. At the same time there is an emerging appreciation that such images can be used in many roles: digital images are now being used to construct digital virtual slides , or are being e...