Application of Typical Set on Automatic Counting of Round Brilliant Cut Gems
Counting is an important part of gems trade, especially in large quantities. To develop a fast and automatic method for gems counting is necessary. According to the structure of round brilliant cut gem and the typical set property, typical gems were defin
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Guangxi Colleges and Universities Key Laboratory of Image Processing and Intelligent Information System, Wuzhou University, Wuzhou, China {panmhwz,weihengbing}@qq.com, [email protected] 2 College of Mechanical and Material Engineering, Wuzhou University, Wuzhou, China 3 School of Information and Communication, Guilin University of Electronic Technology, Guilin, China
Abstract. Counting is an important part of gems trade, especially in large quantities. To develop a fast and automatic method for gems counting is necessary. According to the structure of round brilliant cut gem and the typical set property, typical gems were defined by high circularity and probability. Using the characters of typical gems and the relationship between number and area, gems were counted adaptively. The experiments were shown that the processing speed was fast and the accuracy of counting was high enough for large number of gems trading. Keywords: Typical set Counting
Gems
Round brilliant cut
Image processing
1 Introduction Artificial gems [1, 2], hereinafter referred to as gems, as substitutes for diamonds, with variety, style, beauty and, in particular, huge price advantage, are being well received by buyers. Wuzhou, a city in south of China that has close links with the Pearl River Delta, is widely held to be a gems trading center that serves China and the rest of the world and known as ‘the world capital for artificial gems’. Every year, the volume of processing, distributing and exchanging of gems in Wuzhou has reached more than 13 billion. Counting is important during the gems trading, especially in large quantities. Thus, to develop a fast and automatic method for gems counting is necessary. In order to make gems become more beautiful and personalized, consequently, improve their exchange values, one of the most important ways to aggregate value of the gems is lapidary, including the cutting and polishing processes. Due to physical properties similar to diamond, cubic zirconia is widely processed for artificial gems. Here, we focus on the gems processed into round brilliant cut which is the most popular cutting in gems, for this brilliant cut model maximizing the return of incident light, and consequently, making gems more sparkly and fascinating [2, 3]. As the development of image processing technology, image processing is used to counting in many applications, such as cells counting in medicine [4, 5], counting for © Springer Science+Business Media Singapore 2016 T. Tan et al. (Eds.): IGTA 2016, CCIS 634, pp. 17–26, 2016. DOI: 10.1007/978-981-10-2260-9_3
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vegetable or fruits in agriculture [6–8]. However, there is still no universal method to counting especially for adhesive objects. Different methods would be useful just in special applications. During gems trading, the number of gems is so huge that the gems counting must be automatic and rapid. The methods are presented in referents [4–8] maybe more exactly but not so effective in gems counting for their complex calculations and processing. In t
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