Minimally invasive endoscopes are indispensable in biomedicine. Coherent fiber bundles (CFB) enable lensless endoscopes. However, the aberration correction is challenging. Instead of involving bulky devices, deep neural networks (DNN) will be used. The novel approach uses speckles, which are decoded by DNN to retrieve the 3D object information. Besides this far-field approach, near-field CFB-based high-resolution imaging is promising for neurosurgery. However, the inherent honeycomb artifacts of CFB reduce the resolution. The inherent artifact is eliminated by DNN and high frequency information could be retrieved. Both methods have smart concepts in common, and both pave the way towards early recognition of diseases.
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