Image recognition device based on holographic phase plate
Through the preparation of the holographic phase plate, the problem of complex preparation of optical diffraction neural network structure and inability to be applied to the short wave band is solved, and a high-resolution and low-cost phase modulation layer is realized, which promotes the image recognition application of optical diffraction neural network in the short wave band.
CN119992030APending Publication Date: 2025-05-13SOUTHEAST UNIV
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Patent Information
- Application Number
- CN202411673176.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-05-13
AI Technical Summary
Technical Problem
The existing optical diffraction neural network structure is complex to prepare and difficult to process, and the large structural size makes it impossible to apply to image recognition in short-wave bands such as near-infrared and visible light.
Method used
The holographic phase plate is used to prepare the holographic phase plate by exposure means to achieve a high-resolution phase modulation layer structure, which is suitable for the preparation of optical diffraction neural networks.
Benefits of technology
It realizes the high-resolution phase modulation layer under low cost and low energy consumption, and promotes the image recognition application of optical diffraction neural networks in short-wave bands such as near-infrared and visible light.
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Figure CN119992030A_ABST
Abstract
The invention discloses an image recognition device based on a holographic phase plate. The image recognition device comprises an incident light source module, a light field modulation module and a detector module. Holographic phase plates are arranged at equal intervals to form a light field modulation module, an image recognition task in a light domain is achieved, and the advantages of being high in operation speed, low in energy consumption and the like are achieved. According to the holographic phase plate, a holographic processing means is adopted, the steps are simple, the cost is low, the problems that a phase modulation layer of an existing optical diffraction neural network is complex in preparation and high in cost can be solved, a high-resolution phase modulation layer structure can be achieved under a high-resolution exposure system, and the application range is wide. And near-infrared, visible light and other short wave band image identification can be further realized.
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