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Distance measuring device and method of controlling distance measuring device

  • US 10,641,606 B2
  • Filed: 07/10/2017
  • Issued: 05/05/2020
  • Est. Priority Date: 08/30/2016
  • Status: Active Grant
First Claim
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1. A distance measuring device comprising:

  • a pixel array unit including a plurality of pixels which receives predetermined intermittent light and is arranged in a two-dimensional lattice pattern, wherein the pixel array unit is divided into a plurality of pixel blocks;

    a continuous light image data generating unit configured to generate continuous light image data in which a plurality of pieces of pixel data indicating a luminance of predetermined continuous light is arranged in a two-dimensional lattice pattern on the basis of received light data of each of the plurality of pixels; and

    a depth map generating unit configured to generate a depth map in which distance information corresponding to each of the plurality of pixels is arranged on the basis of the received light data and the continuous light image data, whereinthe depth map generating unit is configured to generate the depth map using a predetermined filter, andthe depth map generating unit includes;

    a low resolution charge signal generating unit which generates low resolution charge signals for each of the plurality of pixel blocks by pixel addition to the received light data;

    a low resolution continuous light image data generating unit which integrates the low resolution charge signal for each of the plurality of pixel blocks and outputs low resolution continuous light image data in which data according to an integrated value is arranged;

    a low resolution depth map generating unit which generates data in which distance information corresponding to each of the plurality of pixel blocks is arranged as a low resolution depth map on the basis of the low resolution charge signal; and

    a high resolution depth map generating unit which inputs the continuous light image data, the low resolution continuous light image data, and the low resolution depth map to the predetermined filter to generate the depth map.

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