Light field camera all-in-focus image acquisition based on angular information

被引:0
|
作者
Wu, Yingchun [1 ]
Cheng, Xing [1 ]
Liang, Jie [2 ]
Wang, Anhong [1 ]
Zhao, Xianling [1 ]
机构
[1] Taiyuan Univ Sci & Technol, Sch Elect Informat Engn, 66 Waliu Rd, Taiyuan 030024, Peoples R China
[2] Simon Fraser Univ, Sch Engn Sci, 8888 Univ Dr, Burnaby, BC V5A 1S6, Canada
基金
中国国家自然科学基金;
关键词
all-in-focus image fusion; light field camera; spatial information; angular information; macro-pixel energy difference; FUSION;
D O I
10.37190/oa210212
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Traditional light field all-in-focus image fusion algorithms are based on the digital refocusing technique. Multi-focused images converted from one single light field image are used to calculate the all-in-focus image and the light field spatial information is used to accomplish the sharpness evaluation. Analyzing the 4D light field from another perspective, an all-in-focus image fusion algorithm based on angular information is presented in this paper. In the proposed method, the 4D light field data are fused directly and a macro-pixel energy difference function based on angular information is established to accomplish the sharpness evaluation. Then the fused 4D data is guided by the dimension increased central sub-aperture image to obtain the refined 4D data. Finally, the all-in-focus image is calculated by integrating the refined 4D light field data. Experimental results show that the fused images calculated by the proposed method have higher visual quality. Quantitative evaluation results also demonstrate the performance of the proposed algorithm. With the light field angular information, the image feature-based index and human perception inspired index of the fused image are improved.
引用
收藏
页码:289 / 304
页数:16
相关论文
共 50 条
  • [31] Reconstruction of an All-in-Focus Image by Region-Adaptive Fusion of Limited Depth-of-Field Images
    Lee, Jae Young
    Park, Sung Oh
    Park, Rae-Hong
    2016 IEEE INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS (ICCE), 2016,
  • [32] Depth and all-in-focus images obtained by multi-line-scan light-field approach
    Stolc, Svorad
    Huber-Moerk, Reinhold
    Hollaender, Branislav
    Soukup, Daniel
    IMAGE PROCESSING: MACHINE VISION APPLICATIONS VII, 2014, 9024
  • [33] All-in-focus and multi-focus color image reconstruction from a database of color and depth image pairs
    Seung-Won Jung
    Jong Hyuk Park
    Young-Sik Jeong
    Multimedia Tools and Applications, 2016, 75 : 15493 - 15507
  • [34] Point-and-Shoot All-in-Focus Photo Synthesis From Smartphone Camera Pair
    Luo, Xianrui
    Peng, Juewen
    Zhao, Weiyue
    Xian, Ke
    Lu, Hao
    Cao, Zhiguo
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2023, 33 (05) : 2088 - 2101
  • [35] All-in-focus and multi-focus color image reconstruction from a database of color and depth image pairs
    Jung, Seung-Won
    Park, Jong Hyuk
    Jeong, Young-Sik
    MULTIMEDIA TOOLS AND APPLICATIONS, 2016, 75 (23) : 15493 - 15507
  • [36] All-in-Focus Sweep Imaging Based on Wigner Distribution Function
    Liu, Chang
    Gao, Shan
    Zhao, Xing
    Qiu, Jun
    IEEE ACCESS, 2018, 6 : 64858 - 64866
  • [37] Multiple depth layers and all-in-focus image generations by blurring and deblurring operations
    Tung, Shih-Shuo
    Hwang, Wen-Liang
    PATTERN RECOGNITION, 2017, 69 : 184 - 198
  • [38] Electrically addressed focal stack plenoptic camera based on a liquid-crystal microlens array for all-in-focus imaging
    Chen, Mingce
    Ye, Mao
    Wang, Zzhe
    Hu, Chai
    Liu, Taige
    Liu, Kewei
    Shi, Jiashuo
    Zhang, Xinyu
    OPTICS EXPRESS, 2022, 30 (19) : 34938 - 34955
  • [39] All-in-focus imaging using average filter-based relative focus measure
    Kwon, Oh-Jin
    Choi, Seungcheol
    Jang, Dukhyun
    Pang, Hee-Suk
    DIGITAL SIGNAL PROCESSING, 2017, 60 : 200 - 210
  • [40] Focus measurement and all in-focus image synthesis for light-field rendering
    Takahashi, Keita
    Kubota, Akira
    Naemura, Takeshi
    Systems and Computers in Japan, 2006, 37 (01): : 1 - 12