Modeling and correction of multipath interference in time of flight cameras

作者：

Highlights：

• Multipath Interference (MpI) is a non-systematic error in Time of Flight (ToF) imaging.

• MpI causes severe distortions in ToF measurements.

• We propose a ray tracing model that renders realistic ToF images, including MpI.

• We use nonlinear optimization to find the scene that best renders the input image.

• We present results with real and synthetic datasets. Error is reduced in all cases.

摘要

•Multipath Interference (MpI) is a non-systematic error in Time of Flight (ToF) imaging.•MpI causes severe distortions in ToF measurements.•We propose a ray tracing model that renders realistic ToF images, including MpI.•We use nonlinear optimization to find the scene that best renders the input image.•We present results with real and synthetic datasets. Error is reduced in all cases.

论文关键词：Time of Flight (ToF),Multipath Interference (MpI),Iterative method

论文评审过程：Received 29 March 2013, Revised 7 October 2013, Accepted 30 October 2013, Available online 14 November 2013.

论文官网地址：https://doi.org/10.1016/j.imavis.2013.10.008