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author:

Huang, Feng (Huang, Feng.) [1] | Zhu, Guofeng (Zhu, Guofeng.) [2] | Chang, Weijie (Chang, Weijie.) [3] (Scholars:常卫杰) | Sun, Cheng (Sun, Cheng.) [4] | Wang, Hewen (Wang, Hewen.) [5] | Yi, Baoliang (Yi, Baoliang.) [6] | Xu, Shengyao (Xu, Shengyao.) [7] (Scholars:徐圣瑶)

Indexed by:

EI Scopus SCIE

Abstract:

Incoherent optical spatial differentiation may allow high speed, low computational power and low latency image processing. However, it is a great challenge to directly design an optical convolutional kernel containing negative values for image differentiation. Therefore, polarization or wavelength-multiplexed bipolar point spread functions (PSFs) followed by digital subtraction is proposed to achieve incoherent optical edge detection. Unfortunately, these methods will increase the device design complexity and only support single isotropic edge detection. Here we proposed and experimentally demonstrated a single-shot incoherent multifunctional image differentiation with spatial tiling optical convolution. As a proof of concept, we specially designed four spatial tiling non-negative optical convolutional kernels based on 4f system through inverse design method, and simultaneously realized three types of spatial differential operators. The x and y directions spatial differentiation and isotropic edge detection can be experimentally demonstrated simultaneously after digital subtraction. Our solution is capable of relaxing device complexity, increasing scalability and facilitating intelligent design, which is of great significance for accelerating machine vision tasks under incoherent illumination.

Keyword:

Edge detection Inverse design Multifunction Optical convolution Spatial differentiation

Community:

  • [ 1 ] [Huang, Feng]Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350108, Peoples R China
  • [ 2 ] [Zhu, Guofeng]Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350108, Peoples R China
  • [ 3 ] [Chang, Weijie]Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350108, Peoples R China
  • [ 4 ] [Sun, Cheng]Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350108, Peoples R China
  • [ 5 ] [Wang, Hewen]Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350108, Peoples R China
  • [ 6 ] [Yi, Baoliang]Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350108, Peoples R China
  • [ 7 ] [Xu, Shengyao]Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • 常卫杰 徐圣瑶

    [Chang, Weijie]Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350108, Peoples R China;;[Xu, Shengyao]Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350108, Peoples R China

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Source :

OPTICS AND LASER TECHNOLOGY

ISSN: 0030-3992

Year: 2025

Volume: 188

4 . 6 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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