Testacean traditional Chinese medicine(TTCM), derived from the outer shell of sea or freshwater mollusks, is a special and important category of Chinese medicinal materials. To ensure the effective use of TTCM, a comp...Testacean traditional Chinese medicine(TTCM), derived from the outer shell of sea or freshwater mollusks, is a special and important category of Chinese medicinal materials. To ensure the effective use of TTCM, a comparative identification study was performed on five commonly-used testacean drugs, including Haliotidis Concha, Arcae Concha, Meretricis Concha, Ostreae Concha and Margaritifera Concha(Shijueming, Walengzi, Geqiao, Muli and Zhenzhumu in Chinese, respectively).Typical morphological photographs of the crude drugs were acquired, and the key microscopic characteristics of the derived powders under normal light microscope and polarized light microscope were summarized. The major results can be concluded as follows:(1) the original species involved in the five TTCMs could be distinguished by their respective interspecies morphological characteristics;(2) the key identification characteristics of the five powdered crude drugs were mainly crystal fragments, with the fragment features under both normal light and polarized light microscope providing powerful points for differentiating the five commonly-used testacean drugs. This study demonstrated that it is feasible to provide authentication for these five kinds of TTCMs by the combination of morphology with microscopy.展开更多
Both physiological and psychological evidences suggest that the human visual system analyze images in neural subsystems tuned to different attributes of the stiamlus. Color module and lightness module are such subsyst...Both physiological and psychological evidences suggest that the human visual system analyze images in neural subsystems tuned to different attributes of the stiamlus. Color module and lightness module are such subsystems. Under this general result, a new physical model of trichromatic system has been developed to deal with the color constancy of computer vision. A normal color image is split into two images: the gray scale image and the equal lightness color image for the two modules. Relatively a two-dimensional descriptor is applied to describe the property of surface reflectance in the equal lightness color image. This descrip- tion of surface spectral reflectance has the property of color constancy Image segmentation experiments based on color property of object show that the presented model is effective.展开更多
基金provided by the 863 Program of Ministry of Scientific and Technology of China (No. SS2013AA093002)
文摘Testacean traditional Chinese medicine(TTCM), derived from the outer shell of sea or freshwater mollusks, is a special and important category of Chinese medicinal materials. To ensure the effective use of TTCM, a comparative identification study was performed on five commonly-used testacean drugs, including Haliotidis Concha, Arcae Concha, Meretricis Concha, Ostreae Concha and Margaritifera Concha(Shijueming, Walengzi, Geqiao, Muli and Zhenzhumu in Chinese, respectively).Typical morphological photographs of the crude drugs were acquired, and the key microscopic characteristics of the derived powders under normal light microscope and polarized light microscope were summarized. The major results can be concluded as follows:(1) the original species involved in the five TTCMs could be distinguished by their respective interspecies morphological characteristics;(2) the key identification characteristics of the five powdered crude drugs were mainly crystal fragments, with the fragment features under both normal light and polarized light microscope providing powerful points for differentiating the five commonly-used testacean drugs. This study demonstrated that it is feasible to provide authentication for these five kinds of TTCMs by the combination of morphology with microscopy.
基金This work is supported by the National '863' High-Tech Programme of China (No. 863-306-03-01-1).
文摘Both physiological and psychological evidences suggest that the human visual system analyze images in neural subsystems tuned to different attributes of the stiamlus. Color module and lightness module are such subsystems. Under this general result, a new physical model of trichromatic system has been developed to deal with the color constancy of computer vision. A normal color image is split into two images: the gray scale image and the equal lightness color image for the two modules. Relatively a two-dimensional descriptor is applied to describe the property of surface reflectance in the equal lightness color image. This descrip- tion of surface spectral reflectance has the property of color constancy Image segmentation experiments based on color property of object show that the presented model is effective.
