Listar por tema "Image reconstruction techniques"

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    • Synchronous phase demodulation algorithm for conic carrier Hartmann topographer 

      CHRISTHIAN ADONAI GONZALEZ VALDEZ; MANUEL SERVIN GUIRADO; RICARDO LEGARDA SAENZ; OSCAR SUSANO DALMAU CEDEÑO; AMALIA MARTINEZ GARCIA
      In this paper, a theoretical analysis of a new algorithm for measuring phase objects (PO) is presented. The algorithm analyses images captured with a modified Hartmann plate. The proposed method demodulates a signal with ...

    • Variational phase recovering without phase unwrapping in phase-shifting interferometry 

      RICARDO LEGARDA SAENZ; ALEJANDRO TELLEZ QUIÑONES; CARLOS FRANCISCO BRITO LOEZA; ARTURO ESPINOSA ROMERO
      We present a variational method for recovering the phase term from the information obtained from phase-shifting methods. First we introduce the new method based on a variational approach and then describe the numerical ...