Off-line character recognition – Off-line character recognition takes a raster image from a scanner (scanned images of the paper documents), digital camera or other digital input sources. The image is binarised based on for instance, color pattern (color or gray scale) so that the image pixels are either 1 or 0. On-line character recognition – In on-line, the current information is presented to...

There are many needs for the ability to fast acquire 3D data from environmental surroundings, such as navigation, mapping, localisation and robot mobility, fire and police planning, urban planning, but the technology for acquiring dense, wide ranging, accurate 3D data is too expensive to be used widely. A low-cost, 360 continuous scanning, portable 3D laser scanner is presented. The accuracy of...

With the increasing number of digital image editing tools, it becomes an easy task to modify any digital image by any user with any level of experience in image editing. One important type of digital images is the scanned documents as they can be used as legal evidence. Therefore, some legal issues may arise when a tampered scanned document cannot be distinguished from an authentic one. In this...

We describe a system for transforming an off-the-shelf flatbed scanner into a $200 scan backend for large format cameras. While we describe both software and hardware aspects, the focus of the paper is on software issues such as color calibration and removal of scanner artifacts. With current scanner technology, the resulting camera system is capable of taking black&white, color, or near-infrar...

PURPOSE The aim of this study is to evaluate the appropriate impression technique by analyzing the superimposition of 3D digital model for evaluating accuracy of conventional impression technique and digital impression. MATERIALS AND METHODS Twenty-four patients who had no periodontitis or temporomandibular joint disease were selected for analysis. As a reference model, digital impressions wi...

A highly influential factor in the performance of image processing algorithms is the amount of noise present in the digital image. A priori knowledge of the expected levels of noise in the image dramatically improves the performance and efficiency in image processing routines. In a digital photofinishing system, image noise is primarily attributed to film grain and scanner noise. Therefore, if ...

1 Abstract Under the banner of anthropometric studies (meaning, studies and measurements of the body), many highly scientific laboratory based projects have evolved. Researched studies into measurements the body and any other object, which needs to be measured in the third dimension, have been heavily financed by the very industries who have shown a need for virtual or digital data acquisition ...

The Project54 system allows the integration of electronic devices in police cruisers. Both the software and the hardware system architecture are modular. The software is composed of components running on an embedded computer and distributed components deployed on a handheld computer. The hardware architecture utilizes an in-car serial bus to connect various in-car electronic devices and a wirel...

Apricot stones have high commercial value and can be used for manufacturing functional foods, cosmetic products, active carbon, biodiesel. The optimal processing of the is dependent on cultivar there a need methods to sort among different cultivars (which are often mixed in facilities). This study investigates effectiveness two low-cost colour imaging systems coupled with supervised learning de...

In this paper, we propose a novel type of 3-D scanning system named ‘Ladder-type laser scanning system,’ designed for scanning vertical and narrow areas. Two line scanners are equipped on a moving platform on a ladder, and scan through the whole target while the platform moves downwards along the ladder. One scanner (main) is for scanning the target, and the other scanner (sub) is for localizin...