Manganoxyd-Phasen als Pigmente antiker Vasenmalerei
function (dots) and the fitted survivor function (continuous line) for ear thquakes with M ~ 2.0 in Eastern Canada for the period t925-1965 (Ranalli, in preparation). Seismic zoning in terms of frequency isolines of damaging earthquakes is therefore a useful first step in ear thquake risk analysis. In order to refine the ear thquake risk index ~ however, it is necessary to weigh it for magnitude, focal depth, and ground response. Ultimately, an empirically based relation between ground acceleration, distance, and magni tude is required, so tha t ear thquake risk can be translated into terms of more immediate relevance to h u m a n and social problems.
Keramiken und Wandmalereien der Ausgrabungen von Thera
The artists on Thera followed the tradition of Minoan Crete in the techniques of vase and wall painting, e.g. they adopted talc as a white pigment in vase painting, but they also employed their own methods. Significant improvements in quality occurred in both islands during tile change from the Kamares to the late Minoan ceramics. Cypriot influences are revealed in the use of manganese black as a ceramic pigment and of jarosite in wall paintings. Calcium hydroxide has been found in a vase buried by ash from the Thera volcano and conserved without carbonization for 3.500 years.
Automatic classification of TV news articles based on telop character recognition
The purpose of this study is to develop a multimedia database system for TV news video data. TV news video data consist of speech, characters and images. In this study, telop characters are recognized and given to the news articles as indices for classification. At first, telop frames which include telop characters are detected and then the telop characters are extracted and recognized. Through morphological analysis of the recognized telop characters, keywords are extracted which consist of more than two characters. Their keywords are used as indices to classify the TV news articles. We carried out experiments for 30 days of NHK 5 minutes news and obtained 95.4% telop character extraction rate, 81.4% character recognition rate and 83.8% article classification rate. We improved the article classification rate by 43.4% through character recognition improvement from 44.1% to 81.4%.