| Summary: | Artificial visual electronics that mimic the structure and function of human eyes can be a powerful tool to provide visual feedback in the closed-loop sensation/action systems, which can be beneficial to achieve sophisticated functions in a precise and efficient way. Herein, how artificial visual electronics work in the closed-loop sensation/action systems, mimicking the human eyes for human behaviors, followed by how artificial visual electronics are utilized in various fields are introduced. To fully mimic the human eyes, how to achieve the structural similarity of artificial visual electronics with eyeballs is highlighted, and focused on the key component, i.e., retina-like 3D light-detecting imagers. When combined with the machine-learning method, such retina-like 3D imagers are expected to significantly benefit the closed-loop sensation/action systems.
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