arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2108.01667eess.IVphysics.optics
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鬼像成像中类视网膜照明模式的优化

Optimization of retina-like illumination patterns in ghost imaging

Jie Cao, Dong Zhou, Ying-Qiang Zhang, Huan Cui, Fang-Hua Zhang, Qun Hao

摘要:

鬼像成像(GI)利用单像素或桶探测器重建图像,具有散射鲁棒性、宽光谱和超视场成像等优点。然而,这种技术需要大量的测量来获得清晰的图像。已经提出了很多方法来克服这个缺点。类视网膜模式作为压缩感知方法之一,在不增加测量值的情况下提高了感兴趣区域(ROI)的成像质量。视网膜样图案的设计决定了重建图像中ROI的性能。不同于传统的方法,以填补在ROI与随机模式,我们提出了优化视网膜样的模式填充在ROI与包含稀疏先验的对象的模式。通过仿真和实验验证了该方法与传统的GI,视网膜样GI和GI使用主成分分析优化的模式相比。使用优化的类视网膜图案的方法获得了最好的成像质量的ROI比其他方法。同时,也验证了优化后的类视网膜模式具有良好的泛化能力。在设计类视网膜图案感兴趣区域的大小和位置时,可以获取目标的特征信息,优化感兴趣区域的图案。该方法为实现高质量的地理信息系统铺平了道路。

英文摘要:

Ghost imaging (GI) reconstructs images using a single-pixel or bucket detector, which has the advantages of scattering robustness, wide spectrum and beyond-visual-field imaging. However, this technique needs large amount of measurements to obtain a sharp image. There have been a lot of methods proposed to overcome this disadvantage. Retina-like patterns, as one of the compressive sensing approaches, enhance the imaging quality of region of interest (ROI) while not increase measurements. The design of the retina-like patterns determines the performance of the ROI in the reconstructed image. Unlike the conventional method to fill in ROI with random patterns, we propose to optimize retina-like patterns by filling in the ROI with the patterns containing the sparsity prior of objects. This proposed method is verified by simulations and experiments compared with conventional GI, retina-like GI and GI using patterns optimized by principal component analysis. The method using optimized retina-like patterns obtain the best imaging quality in ROI than other methods. Meanwhile, the good generalization ability of the optimized retina-like pattern is also verified. While designing the size and position of the ROI of retina-like pattern, the feature information of the target can be obtained to optimize the pattern of ROI. This proposed method paves the way for realizing high-quality GI.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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