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New approach to extract phase feature of 3-D objects by wavelength-scanning digital holography
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作者 SHEN Jin-yuan LI Xian-guo +1 位作者 m. k. kim CHANG Sheng-jiang 《Optoelectronics Letters》 EI 2006年第2期136-138,共3页
A new approach to extract phase feature of 3-D objects based on wavelength-scanning digital holography and numerical reconstruction technique is proposed in this paper.A number of holograms are recorded on a digital c... A new approach to extract phase feature of 3-D objects based on wavelength-scanning digital holography and numerical reconstruction technique is proposed in this paper.A number of holograms are recorded on a digital camera and reconstructed numerically by a computer with different wavelengths spaced at regular intervals.The theoretical analysis and computer simulations demonstrate that those pixels with the same phase of a 3-D object can focus on the same reconstruction plane.And those pixels with different phase of a 3-D object focus on the different reconstruction planes.Therefore the phase information of a 3-D object can be described by a series of reconstructed images on different planes. 展开更多
关键词 数字全息术 波长扫描 数字相机 三维重建
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