Window of Visibility in the Display and Capture Process

Authors

  • Feng Xiong Institute of image Communication and Information Processing, Shanghai Jiao Tong University, Shanghai, China
  • Guangtao Zhai Institute of image Communication and Information Processing, Shanghai Jiao Tong University, Shanghai, China
  • Yi Zhang Institute of image Communication and Information Processing, Shanghai Jiao Tong University, Shanghai, China

Abstract

In normal conditions, the Critical Flicker Frequency is usually 60Hz. But in some special conditions, such as low spatial frequency and high contrast between frames, these special conditions have high probability to occur in some TPVMbased applications. So it’s extremely important to verify if a visual signal with a combination of temporal and spatial frequency can be recognize by human eyes. Based on the research in the last paper ’ ’Window of Visibility’ inspired security lighting system’, this paper introduces the measuring method of WoV of human
eyes. In this paper we will measure critical flicker frequency in low spatial frequency and high contrast conditions, and we can witness a different conclusion from the normal conditions.

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Published

2018-07-20

Issue

Section

Image Processing