Conjugate gradient method for phase retrieval based on the Wirtinger derivative

Zhun Wei, Wen Chen, Cheng Wei Qiu, Xudong Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)


A conjugate gradient Wirtinger flow (CG-WF) algorithm for phase retrieval is proposed in this paper. It is shown that, compared with recently reported Wirtinger flow and its modified methods, the proposed CG-WF algorithm is able to dramatically accelerate the convergence rate while keeping the dominant computational cost of each iteration unchanged. We numerically illustrate the effectiveness of our method in recovering 1D Gaussian signals and 2D natural color images under both Gaussian and coded diffraction pattern models.
Original languageEnglish
Pages (from-to)708-712
Number of pages5
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Issue number5
Publication statusPublished - 1 May 2017

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition


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