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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 13,
  • Issue 7,
  • pp. 071102-
  • (2015)

Depth map resolution improvement for 3D range-intensity correlation laser imaging

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Abstract

This Letter proposes a high bit-depth coding method to improve depth map resolution and render it suitable to human-eye observation in 3D range-intensity correlation laser imaging. In this method, a high bit-depth CCD camera with a nanosecond-scaled gated intensifier is used as an image sensor; subsequently two high bit-depth gate images with specific range-intensity profiles are obtained to establish the gray depth map and finally the gray depth map is encoded by an equidensity pseudocolor. With this method, a color depth map is generated with higher range resolution. In our experimental work, the range resolution of the depth map is improved by a factor of 1.67.

© 2015 Chinese Laser Press

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