Measurement matrix dimension reduction method of three-dimensional layered target compression holography

• Main Authors: WANG KANGWEI, YU JIAJING, YU XUELIAN, BAN JIANG, BAO XINGXU, SUN YANQIAN
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2021
• Subjects: CALCULATING; CINEMATOGRAPHY; COMPUTING; COUNTING; ELECTROGRAPHY; HOLOGRAPHIC PROCESSES OR APPARATUS; HOLOGRAPHY; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHOTOGRAPHY; PHYSICS

The invention discloses a measurement matrix dimension reduction method of three-dimensional layered target compression holography, and belongs to the field of computational imaging and holographic three-dimensional imaging. When three-dimensional layered target compression holography reconstruction is carried out, the reconstruction speed and the imaging quality are limited by the measurement matrix dimension and crosstalk noise. On the basis of layered representation of a three-dimensional layered target hologram, the dimension of the measurement matrix is reduced and crosstalk noise is eliminated by using a segmentation operator and a parallel operator. Compared with the traditional compression holography, the method has higher reconstruction speed and higher reconstruction quality. 三维分层目标压缩全息术的测量矩阵降维方法，属于计算成像、全息三维成像领域。三维分层目标压缩全息术重建时，受测量矩阵维度和串扰噪声的限制，其重建速度和成像质量被制约。本发明通过在三维分层目标全息图的分层表示的基础上，利用分割算子和并行算子，降低测量矩阵的维度，消除串扰噪声。相比于传统压缩全息术，本方法具有更快的重建速度和更高的重建质量。