CAJ | 학술논문

针对复眼超分辨率重构系统中，当以不同成像分辨率（对应不同的下采样因子）的器件拍摄同一场景时，重构效果相对于各自低分辨率图像改善程度不同的问题，研究了下采样程度与复眼超分辨率重构效果之间的关系。通过仿真实验获取不同下采样因子下低分辨率图像的重构结果，从信息熵、信噪比和峰值信噪比对重构前后图像质量进行评价，并采用Romchi Ruling分辨率靶板对仿真结果进行实验验证。实验结果表明：以3至4为下采样因子对512×512的lena图像采样时，信噪比提高7.29db，重构效果改善明显；以相对下采样因子2.2对50mm×50mm的Romchi Ruling分辨率靶板采样时，分辨率提高3个等级。其研究结果可用于指导复眼成像系统研制过程中对成像器件的选型。
침대복안초분변솔중구계통중，당이불동성상분변솔（대응불동적하채양인자）적기건박섭동일장경시，중구효과상대우각자저분변솔도상개선정도불동적문제，연구료하채양정도여복안초분변솔중구효과지간적관계。통과방진실험획취불동하채양인자하저분변솔도상적중구결과，종신식적、신조비화봉치신조비대중구전후도상질량진행평개，병채용Romchi Ruling분변솔파판대방진결과진행실험험증。실험결과표명：이3지4위하채양인자대512×512적lena도상채양시，신조비제고7.29db，중구효과개선명현；이상대하채양인자2.2대50mm×50mm적Romchi Ruling분변솔파판채양시，분변솔제고3개등급。기연구결과가용우지도복안성상계통연제과정중대성상기건적선형。
The image device with different resolution will make different effect on the reconstruction result, so the downsampling rate is considered in the processing of the engineer designing of the the compound-eye imaging system based on super resolution reconstruction. The paper makes a comparison between the simulation of the series of low resolution with different downsampling rate and the result in lab, and generalize a series curve of evaluating indicator of image, and makes analysis in vision and integral value. The entropy, SNR, PSNR are used to evaluate the quality of the image before and after reconstruction, at last the Romchi Ruling resolution test target is used to check the simulation result. The PSNR makes up 7.29db when the downsampling rate is 3~4 for lena, and the image quality improves obviously. The resolution makes up 3 degrade when the downsampling rate is 2.2 for Romchi Rul-ing resolution test target.