Automated chain line marking and pattern matching in radiographs of Rembrandt's prints
| Autor: | Chris R. Johnson, A House, William A. Sethares, D Conathan, X Xi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
060102 archaeology Radon transform business.industry 020206 networking & telecommunications 06 humanities and the arts 02 engineering and technology Automation Chain (algebraic topology) Section (archaeology) Line (geometry) 0202 electrical engineering electronic engineering information engineering 0601 history and archaeology Computer vision Artificial intelligence Pattern matching business Digital watermarking Blossom algorithm |
| Zdroj: | ACSSC |
| Popis: | The sieve-like molds used in early paper manufacturing leave characteristic chain line patterns that can help determine if two pieces of paper were made using the same mold [1]. Such moldmates can help in establishing chronology, suggest paper preferences, and indicate periods of intense activity of an artist, and the study of Rembrandt's prints has occupied a prominent place within this scholarship [2]. There are two basic steps to the automation of the analysis [3], [4]. First, the chain lines must be accurately marked, extracting points and lines from the x-ray images. Second, the markings from many x-rays must be compared to find matches. This paper presents improved algorithms for both of these tasks. Section II follows [6] in replacing the classic Radon transform approach of [5] (which requires that the chain lines be straight) with a local method that outputs marked grids of points. The method segments the images, corrects for tilt, filters, conducts a (local) Radon transform and then concludes with a peak detection. The marked grids from a large collection of x-rays of Rembrandt's prints are then used in Section III as input to the matching algorithm. |
| Databáze: | OpenAIRE |
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