斑点图案
散斑噪声
光学
像素
数字全息术
散斑成像
全息术
计算机科学
二进制数
物理
人工智能
计算机视觉
数学
算术
作者
Weitao Lin,Li Chen,Yonghao Chen,Wenyang Cai,Yihua Hu,Kunhua Wen
出处
期刊:Applied Optics
[The Optical Society]
日期:2020-06-01
卷期号:59 (16): 5066-5066
被引量:7
摘要
Speckle reduction is a crucial technique, since the presence of speckle disturbs the quality of the reconstruction in digital holography. In this paper, we present a redundant speckle elimination method to suppress the speckle noise. For the same position in each of the reconstructed sub-images, we consider pixels with the same gray value as information with the same speckle distribution. Therefore, a speckle-suppressed gray value can be obtained by extracting pixels with different gray values and then averaging. Through theoretical analysis and experiments, we demonstrate that speckle contrast can be decreased significantly by using the proposed method. Moreover, we show that the despeckle strength of the proposed method highly depends on the number of binary masks. These results indicate the potential of the proposed method for various applications.
科研通智能强力驱动
Strongly Powered by AbleSci AI