retinal point 中文意思是什麼
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Using the way combining the mathematic morphology top - hat and gauss matched filtering can effectively reduce the influence of the inherent fovea and the marginal noise brought forth by the retinal camera caliber in retinal image and increase the precision of retinal image segmentation and feature point extraction
文中提出了採用灰度數學形態學中的top - hat變換和高斯匹配濾波相結合的方法，用來有效的降低視網膜熒光圖像中固有的小窩現象及眼底照相機的口徑所引起的視網膜圖像邊界像素噪聲，極大的提高了圖像分割及特徵提取的精度。 -
After absorption, the all - frans - retinal isomerizes to a 13 - c / s configuration and br undergoes a photocycle : br570 k590 l550 m410 n520 o640 br570 bacteriohodopsin is a promising biological photoelectric material. we intent to conduct a more thermostable br by site - directed mutagensis. a point ( no. 274 t, no. 274 a turn to c g ) mutation was introduced to br gene by successive pcr technique, and cloned into puc - 19 vector
本論文利用連續pcr的方法定點突變了br基因的一個氨基酸，突變位點選擇了br基因第273的t和274位的a ，把它們變為cg （ tyr替換為arg ） ，然後把突變的br基因克隆入嗜鹽菌表達載體pnov - r ，經測序鑒定的表達載體轉化br缺陷的嗜鹽菌，構建了tyr79 argbr突變體。 -
The aim of medical image registration is to align the corresponding point in two medical images. then image fusion technique can be used, and a new containing all medical information of both images can be provided to doctor, through which medical information in different modality can reinforce each other. retinal image registration is often required in clinic surgery and laser therapy in order to provide ophthalmologists with new element of diagnosis and surgery planning
醫學圖像配準技術能夠將一幅醫學圖像與另一幅醫學圖像上對應點達到空間上的一致，從而把各種成像模態的醫學圖像信息融合成一種新的影像模式展現給臨床醫生，因而能解決上述醫學上的難題，使各種成像設備在信息表達上達到優勢互補的目的。
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