拍球法的一種 的英文怎麼說
中文拼音 [pāiqiúfǎdeyīzhǒng]
拍球法的一種
英文
chase-
The author mainly anticipates the task including the simulation of eye fundus imaging and image mosaic. on the base of the dr principle and ophthalmic phototropism study, the author analyze and contrast new fundus camera system with traditional fundus camera. the author will establish the eyeball model with 3ds max technology, imitate the simple eyeball dioptre system and simulate the narrow - angle imaging to ensure the rationality and authenticity of fundus image, which solves the object origin of later image process, then fast mosaics the nine piece of fundus images with the help of the image registration theory and acquire a piece of wide - view fundus image containing more information, thereby provides doctor with enough diagnostic detail, which solves the problem of narrow view
作者在熟悉糖尿病性視網膜病變原理和眼科屈光學的基礎上，進一步研究分析了新型免散瞳眼底照相系統和傳統眼底照相機原理和區別，擬採用3dsmax建立三維眼球模型，模擬眼球屈光系統，模擬眼底照相系統的小角度拍攝，使獲取的眼底圖像合理真實，解決後期系統圖像分析處理的對象來源問題;然後運用醫學圖像配準理論對模擬獲取到的九幅小角度眼底圖像進行快速拼接，拼成一幅大角度的眼底圖像，解決小瞳孔拍攝圖像視角太小的問題;最後通過對眼底圖像配準演算法在相似性測度和搜索演算法的比較，找到一種適合眼底照相系統的眼底圖像拼接的快速演算法。For consideration of principle of photometry and experimental research, with 2d gray image of typical surface ( spherical surface ) taken with digital camera, and by use of nonlinear least square optimizing method, the illumination parameters of four local illumination models, that are lambert, phong, torrance - sparrow and cook - torrance model, are determined. and with statistics analytical principle, regression analyses are made to compare the fitting precision of these illumination models under the current experiment condition. comparing torrance - sparrow model with others, an improved illumination model for measurement of surface is developed
結合光度學原理，從實驗研究入手，通過用數字相機實際拍攝的典型曲面（球面）的二維灰度圖像，應用非線性最小二乘優化方法研究確定了現有的lambert 、 phong 、 torrance - sparrow和cook - torrance四種常用局部光照模型的光照參數，利用統計分析原理分析了這四種光照模型在當前實驗條件下對實際圖像灰度數據的擬合精度，並對擬合精度較高的torrance - sparrow光照模型加以完善和改進，發展出一種適合於曲面測量的改進光照模型。
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