| 林木种子X射线片的数字图象处理 |
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| 引用本文： | 缪印华,陈幼生,吴琼美.林木种子X射线片的数字图象处理[J].南京林业大学学报(自然科学版),1986(1). |
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| 作者姓名： | 缪印华 陈幼生 吴琼美 |
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| 作者单位： | 南京林学院遥感实验室
(缪印华)，南方林木种子检验中心
(陈幼生)，南方林木种子检验中心(吴琼美) |
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| 摘 要： | 用X射线,特别是软X射线拍摄林木种子,判渎并分析所摄图象以鉴定林木种子质量,三十年来这一方法在国外发展相当迅速。可望成为林木种子检验的常规手段之一。近年来我国林业工作者就这一方法进行了试验研究,取得不少经验。 对X射线片的分析研究,目前是把与原物等大的黑白透明X射线片衬在灯箱上,借助透身十光线用肉眼观察胚和胚乳的发育状况,并判断胚孔同种腔和胚同胚腔的比例关系,据以鉴定种子质量。对具有机械伤害或生理伤害的种子,则利用各种衬比剂使伤害部分在图象上显现,仍用肉眼判断受害部分同整个胚或胚乳面积的比例关系。在这一过程中,有时由于X射线片上各组织间轮廓不清,或是种子粒太小,肉眼不易分辨,往往带有一定程度的主观随意性,不能得到准确的数据,因此,改善X射线片图象的判读性能,取得种子内部各组织发育程度及相互间比例的精确数据,进而把检验工作从定性提高到定量化水平,将是林木种子X射线影摄检验法更趋完善的一项有意义的研究课题。
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| 关 键 词： | 林木种子 种子检验 x射线片 数字图象处理 |
STUDIES ON X-RAY RADIOGRAPHIC IMAGES OF TREE SEEDS BY DIGITAL IMAGE PROCESSING |
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| Miao Yinhua.STUDIES ON X-RAY RADIOGRAPHIC IMAGES OF TREE SEEDS BY DIGITAL IMAGE PROCESSING[J].Journal of Nanjing Forestry University(Natural Sciences ),1986(1). |
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| Authors: | Miao Yinhua |
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| Affiliation: | Miao Yinhua
(Remote Sensing Laboratory) Chen Yousheng Wu Qiongmei (The Southern Tree Seed Inspection Centre) |
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| Abstract: | X-ray rad1ographic images of Pinus ellioitii Engelm var. elliottii seeds were transferred into digital signals and put in computer by photodigitizer. Since the quality of the images was improved significantly through digital image processing (DIP), embryo (E), embryo cavity (EC), endosperm (EN) and seed cavity (SC) were delineated on the screen of monitor. In this way, the calculation on the ratios of the areas between E and EC and between EN and SC were computerized. It is suggested that by means of DIP the development of seeds could be quantified promptly, which would be of great value to seeds testing and seed research work. |
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| Keywords: | Tree seeds Seeds test X-ray radiograph Digital image processing |
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