2020年4月10日 · 本文的FZA无透镜成像结构采用单片菲涅尔波带片作为编码掩模，称之为 菲涅尔孔径（FZA），将其放置于传感器前3mm处。 由于只采用一片波带片，波带片与传感器之间 无需特别校准 。

The MATLAB codes allow simulation/experiment and compressive reconstruction of an single-shot lensless imaging using Fresnel zone aperture (FZA). They are based on the paper:

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2022年4月28日 · The resolution of a lensless camera with FZA is determined since the minimum pitch of the FZA, so the finer the FZA pitch, the higher the resolution. On the other hand, we can improve the resolution without fine FZA pitch if higher …

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Abstract: Fresnel zone aperture (FZA) lens-less camera is a class of computational imaging systems that employs an FZA as a coded mask instead of an optical lens. FZA lens-less camera can perform fast deconvolution reconstruction and realize the re-focusing function.

2024年6月14日 · The proportion of high-order diffraction energy is low, leading to severe defocus noise in the reconstructed image. To address this issue, we propose a Compound FZA (CFZA), which merges two partial FZAs operating at different orders as the mask to strike a balance between the noise and resolution.

2020年12月24日 · We present a prototype of a lensless camera that uses a deep neural network (DNN) to realize rapid reconstruction for Fresnel zone aperture (FZA) imaging. A deep back-projection network (DBPN) is connected behind a U-Net providing an error feedback mechanism, which realizes the self-correction of features to recover the image detail.

2024年6月15日 · The proportion of high-order diffraction energy is low, leading to severe defocus noise in the reconstructed image. To address this issue, we propose a Compound FZA (CFZA), which merges two partial FZAs operating at different orders as the mask to strike a balance between the noise and resolution.

模扩底锚栓fza的优势 1.特殊模扩底技术通过机械嵌合作 用，保证更大的安全性，即使在大 裂缝中，也能实现安全锚固。 2.几乎无安装膨胀应力，可以允许更 小的锚栓边间距，使用更加灵活。