Evolution of natural eyes and biomimetic imaging devices for effective image acquisition

Kim, Min Su; Yeo, Ji-Eun; Choi, Heung‐Kook; Chang, Sehui; Kim, Dae‐Hyeong; Song, Young Min

doi:10.1039/d3tc01883k

Cited by 8 publications

(5 citation statements)

References 191 publications

(264 reference statements)

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“…Visual information, in particular, accounts for a significant portion of the surrounding data, leading to the development of artificial vision systems. 816 The camera, composed of multiple lenses and a planar image sensor, has become a fundamental design of the artificial vision system. With the recent advances of electronics and mechanics, modern machines and robots carry out multiple tasks via diverse sensing systems, including vision.…”

Section: Artificial Vision Systemsmentioning

confidence: 99%

“…Sensing ability is a crucial factor to most animals for survival that requires tons of external information from visual, auditory, and tactile cues. Visual information, in particular, accounts for a significant portion of the surrounding data, leading to the development of artificial vision systems . The camera, composed of multiple lenses and a planar image sensor, has become a fundamental design of the artificial vision system.…”

Section: Representative Human-centric Applications Of Flexible and St...mentioning

confidence: 99%

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Flexible and Stretchable Light-Emitting Diodes and Photodetectors for Human-Centric Optoelectronics

Chang,

Koo,

Yoo

et al. 2024

Chem. Rev.

Self Cite

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Optoelectronic devices with unconventional form factors, such as flexible and stretchable light-emitting or photoresponsive devices, are core elements for the nextgeneration human-centric optoelectronics. For instance, these deformable devices can be utilized as closely fitted wearable sensors to acquire precise biosignals that are subsequently uploaded to the cloud for immediate examination and diagnosis, and also can be used for vision systems for human-interactive robotics. Their inception was propelled by breakthroughs in novel optoelectronic material technologies and device blueprinting methodologies, endowing flexibility and mechanical resilience to conventional rigid optoelectronic devices. This paper reviews the advancements in such soft optoelectronic device technologies, honing in on various materials, manufacturing techniques, and device design strategies. We will first highlight the general approaches for flexible and stretchable device fabrication, including the appropriate material selection for the substrate, electrodes, and insulation layers. We will then focus on the materials for flexible and stretchable lightemitting diodes, their device integration strategies, and representative application examples. Next, we will move on to the materials for flexible and stretchable photodetectors, highlighting the state-of-the-art materials and device fabrication methods, followed by their representative application examples. At the end, a brief summary will be given, and the potential challenges for further development of functional devices will be discussed as a conclusion.

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Section: Artificial Vision Systemsmentioning

confidence: 99%

Section: Representative Human-centric Applications Of Flexible and St...mentioning

confidence: 99%

Flexible and Stretchable Light-Emitting Diodes and Photodetectors for Human-Centric Optoelectronics

Chang,

Koo,

Yoo

et al. 2024

Chem. Rev.

Self Cite

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“…Meanwhile, natural vision systems, from biological eyes to visual recognition systems, which oftentimes show excellent performance and simple structure by surpassing those of man-made vision systems, offer promising insights to address the inefficiencies of conventional devices (Figure b). , However, to mimic and implement key structural and functional features of the biological vision systems, it is required to realize curved form factors − and neuromorphic characteristics − in the imaging system. However, these cannot be achieved by using traditional rigid and flat CMOS image sensors. , Thereby, mechanically deformable nanomaterials (e.g., silicon (Si) nanomembranes, ,, two-dimensional (2D) materials, − amorphous oxide semiconductors, , and nanocrystals (quantum dots (QDs) , and halide perovskites − )) and unconventional device technologies (e.g., flexible devices with kirigami designs, ,, devices using stretchable interconnections, − and intrinsically stretchable devices , ) have emerged as promising technical solutions for the development of multifunctional high-performance bioinspired artificial vision systems.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nanomaterial-Based Artificial Vision Systems: From Bioinspired Electronic Eyes to In-Sensor Processing Devices

Choi,

Lee,

Chang

et al. 2024

ACS Nano

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High-performance robotic vision empowers mobile and humanoid robots to detect and identify their surrounding objects efficiently, which enables them to cooperate with humans and assist human activities. For error-free execution of these robots' tasks, efficient imaging and data processing capabilities are essential, even under diverse and complex environments. However, conventional technologies fall short of meeting the high-standard requirements of robotic vision under such circumstances. Here, we discuss recent progress in artificial vision systems with high-performance imaging and data processing capabilities enabled by distinctive electrical, optical, and mechanical characteristics of nanomaterials surpassing the limitations of traditional silicon technologies. In particular, we focus on nanomaterial-based electronic eyes and insensor processing devices inspired by biological eyes and animal visual recognition systems, respectively. We provide perspectives on key nanomaterials, device components, and their functionalities, as well as explain the remaining challenges and future prospects of the artificial vision systems.

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“…Bioinspired artificial vision research has yielded a multitude of unconventional imaging systems that model structural and functional characteristics of the diverse eyes in nature ( 1 – 5 ). These artificial visions have shown fascinating performances and potential, particularly beneficial for next-generation mobile robotics.…”

Section: Introductionmentioning

confidence: 99%

Avian eye–inspired perovskite artificial vision system for foveated and multispectral imaging

Park,

Kim,

Kim

et al. 2024

Sci. Robot.

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Avian eyes have deep central foveae as a result of extensive evolution. Deep foveae efficiently refract incident light, creating a magnified image of the target object and making it easier to track object motion. These features are essential for detecting and tracking remote objects in dynamic environments. Furthermore, avian eyes respond to a wide spectrum of light, including visible and ultraviolet light, allowing them to efficiently distinguish the target object from complex backgrounds. Despite notable advances in artificial vision systems that mimic animal vision, the exceptional object detection and targeting capabilities of avian eyes via foveated and multispectral imaging remain underexplored. Here, we present an artificial vision system that capitalizes on these aspects of avian vision. We introduce an artificial fovea and vertically stacked perovskite photodetector arrays whose designs were optimized by theoretical simulations for the demonstration of foveated and multispectral imaging. The artificial vision system successfully identifies colored and mixed-color objects and detects remote objects through foveated imaging. The potential for use in uncrewed aerial vehicles that need to detect, track, and recognize distant targets in dynamic environments is also discussed. Our avian eye–inspired perovskite artificial vision system marks a notable advance in bioinspired artificial visions.

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Evolution of natural eyes and biomimetic imaging devices for effective image acquisition

Abstract: In the natural evolutionary process, biological creatures have developed diverse visual structures apt for their habitational environments. These natural vision structures have inspired the development of artificial vision systems. These...

Cited by 8 publications

References 191 publications

Flexible and Stretchable Light-Emitting Diodes and Photodetectors for Human-Centric Optoelectronics

Flexible and Stretchable Light-Emitting Diodes and Photodetectors for Human-Centric Optoelectronics

Nanomaterial-Based Artificial Vision Systems: From Bioinspired Electronic Eyes to In-Sensor Processing Devices

Avian eye–inspired perovskite artificial vision system for foveated and multispectral imaging

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