摘要

为保证航天遥感相机互补金属氧化物半导体(CMOS)图像传感器非均匀性校正的实时性,降低图像的光响应非均匀度(PRNU),根据COMS图像传感器的结构特点,提出了一种基于自适应移动窗口的COMS图像非均匀性校正方法。首先,从工程应用角度出发,采用可移动变步长窗口对图像进行分块,使同一窗口内的多列像元共用一组校正参数。然后,针对现有方法中线性拟合校正精度不足的问题,基于COMS传感器的非线性响应特性用最小二乘法对响应曲线进行二阶拟合。实验结果表明,本方法既能提升COMS图像的质量,又能减少硬件系统的校正参数量。用本方法校正后的图像PRNU小于1%,相比线性拟合校正,本方法的校正参数量减少了23.7%。

1

被引

访问全文
Lingual tuberculosis in an HIV/AIDS patient
Rodriguez Jose Y*; Rodriguez Gerson J; Alvarez Moreno Carlos A
International Journal of Infectious Diseases, 2017, 58: 43-44.

1

被引

访问全文
Trends in Mortality by HIV/AIDS in Children in Mexico: Towards the Elimination of Mother-To-Child Transmission
Palacio-Mejia, Lina Sofia; Hernandez-Avila, Juan Eugenio; Molina-Velez, Diana; Gonzalez-Gonzalez, Leonel; Quezada-Sanchez, Amado D.; Hernandez-avila, Mauricio; Magis-Rodriguez, Carlos
Archives of Medical Research, 2021, 52(7): 746-754.

6

被引

访问全文
Distal Renal Tubular Acidosis in HIV/AIDS Patient
Isa Wan Yus Haniff Wan; Daud Kamaliah M*
Internal Medicine, 2011, 50(16): 1765-1768.

4

被引

Stroke Secondary to Neurosyphilitic Vasculitis in an HIV/AIDS Patient
Rickard Mary; Iyadurai Stanley
64th Annual Meeting of the American-Academy-of-Neurology (AAN), 2012-04-21 to 2012-04-28.

6

被引

访问全文
Enteric fever in an HIV/AIDS patient: Atypical manifestations
Mitali Chatterjee; Banya Chakraborty; Shiv Chatterjee; Mohua Bose
Iranian Journal of Microbiology, 2012.