多金属结核海底照片的图象识别与处理
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IMAGE PROCESSING AND RECOGNIZING OF SEAFLOOR POLYMETALLIC NODULE PHOTOS
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    摘要:

    NIRS是结核海底照片的处理系统。照片具点光源特征,中间亮边部暗,依光强与射线距离平方成反比的关系将其校正为平行光源照片;模式识别综合利用灰度、形状等特征分割图象与背景,圈定结核,然后计算覆盖率、估算丰度,以数据库存储管理信息。配置了1850DPI底片扫描仪,显示图象清晰。分析了DY851,DY853航次照片处理结果,划分出五种照片类型,提出了系统的最佳使用方法,讨论了照片处理质量的评价方法。

    Abstract:

    NIRS (Seafloor Nodule Image Recognition System) is a processing system of sea floor poly-metallic nodules images. Those images, with a character of the point light source (light in the center and dim on margins in the photo), can be corrected to such an extent that they have a character of parallel light according to the inverse ratio relation between the light intensity and the power of the light distance. According to the pattern recognition theory. the nodule image and its background can be segregated by some features such as grey and shape; then the edge of each nodule can be circled, the coverage and the estimated abundance can be calculated, and all the information can be stored in the database. A film scanner with resolution 1850DPI is configurated and a high clarity image can be displayed. The processing results of the seafloor nodule photo in cruises DY85-1 and DY85-3 have been analysed and five types of the nodule photos can be distinguished. The best operation method of this system has been put forward and the evalution method of quality of photo processing has been discussed.

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王公念,朱克超,叶剑平,许洪泉,梁朴.1996.多金属结核海底照片的图象识别与处理[J].地质论评,42(6):560-563,[DOI].
Wang Gongnian, Zhu Kechao.1996. IMAGE PROCESSING AND RECOGNIZING OF SEAFLOOR POLYMETALLIC NODULE PHOTOS[J]. Geological Review,42(6):560-563.

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