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[Paper] A 2-Tap 4-Phase Indirect Time-of-Flight Ranging Method using Half-Pulse Modulation for Depth Precision Enhancement and Sub-Frame Operation for Motion Artifact Suppression
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- Kuo Chia-Chi
- Graduate School of Engineering, Tohoku University
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- Kuroda Rihito
- Graduate School of Engineering, Tohoku University New Industry Creation Hatchery Center, Tohoku University
Description
<p>In this article, we present a 2-tap indirect time-of-flight (iToF) ranging method using half-pulse (HP) modulation for depth precision enhancement. The operation principle of the ranging method is explained, and theoretical depth noise equations are derived and verified through experiments. Compared to the conventional continuous square-pulse (SP) modulation, the HP modulation exhibited a depth noise reduction of >25% and >29% for the 0.4-3 m range using the HP1 and HP2 methods, respectively. To ensure the depth image quality with moving targets, the motion artifact suppression is demonstrated by applying the sub-frame 4-phase operation. In addition, the application notes and the future directions for utilizing these techniques are discussed.</p>
Journal
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- ITE Transactions on Media Technology and Applications
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ITE Transactions on Media Technology and Applications 11 (3), 123-129, 2023
The Institute of Image Information and Television Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390296666497361664
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- ISSN
- 21867364
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- OpenAIRE
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- Abstract License Flag
- Disallowed