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| 数字剪切散班干涉术中的刚体位移补偿的新方法 | |
| 引用本文： | 陈万. 数字剪切散班干涉术中的刚体位移补偿的新方法[J]. 光学学报, 1995, 15(5): 571-575 |
| 作者姓名： | 陈万 |
| 作者单位： | 陈方:Department of Mechanical Eng., Oakland University, Rochester Hills, MI 48309, U. S. A Y. Y. Hung:Department of Mechanical Eng., Oakland University, Rochester Hills, MI 48309, U. S. A C. T. Griffen:Department of Mechanical Eng., Oakland University, Rochester Hills, MI 48309, U. S. A |
| 摘 要： | 给出一个数字剪切散斑干涉术中的刚体位移补偿的新方法。当刚体位移大于一个像素时，加载前后的散斑图将会由于位置的变化导致失相关。重新安排每一个像素将会克服此失相关。散斑平均、条纹重构以及迭代方法用来改善条纹质量，消除散斑噪声，最后得到可取结果。 |
| 关 键 词： | 散斑重新布局，刚体位移，数字剪切散班干涉术 |
| 收稿时间： | 1994-08-31 |
A New Method of Tolerating Rigid Body Motion for Digital Shearography |
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| Abstract: | One of the limitation of speckle correlation interferometric techniques including shearography is that the rigid Any motion yields decorrelation of speckle patterns before and after deformation which results in the deterioration of fringe visibility. This peper proposes a method which can effectively tolerate rigid they motion. It involves rearranging the recorded speckles before and after deformation in order to enlarge the speckle size, averaging speckles to improve the quality of fringe Patterns, and reconstructing fringe patterns and iteration of smooth to further suppress the speckle noise to obtain decent result. |
| Keywords: | speckle rearranging rigid body motion digital shearography |
| 本文献已被 CNKI 等数据库收录！ | |