منابع مشابه
Automatic Coding of Printed Materials
Traditionally most researchers working with printed data sources have entered data by hand to convert it into electronic format. If a research project involves large amounts of data from similarly formatted sources – for example, when one tries to create a longitudinal database of directory information spanning many years – entering this data by hand is a very labour intensive and tedious task....
متن کاملExperimental Analysis of Luminescence in Printed Materials
This paper is based on a printing industry research project nearing completion [1]. While luminescent pigments have been used for many years, provision of fast response quality control systems have been challenging, primarily due to large and expensive components that are integral to spectroscopy instrumentation. Characteristics of the light sources and detectors used together with application ...
متن کاملAn evaluation of printed HPV educational materials.
Genital human papillomavirus (HPV) infection is the most common viral sexually transmitted infection (STI) and is likely the most common STI in the United States.1-4 Genital HPV infection is an important public health concern because persistent oncogenic (also called high-risk) HPV infection is the main etiologic factor for cervical cancer, causing almost 100% of all cervical cancer cases world...
متن کاملDigital Watermarking for Forgery Detection in Printed Materials
Forgery prevention and detection are of great social importance.This paper attempts to apply digital watermarking into forgery prevention.To embed a watermark,the wavelet transformation is first applied to the original image and the corresponding approximation image and detail images are obtained.The digital watermark is embedded into the most important DCT coefficients of the approximation ima...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1989
ISSN: 0252-9211
DOI: 10.1017/s0252921100003122