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DC Field | Value | Language |
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dc.citation.endPage | 3999 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 3989 | - |
dc.citation.title | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | - |
dc.citation.volume | 69 | - |
dc.contributor.author | Piao, Canxing | - |
dc.contributor.author | Ahn, Yeonsoo | - |
dc.contributor.author | Kim, Donguk | - |
dc.contributor.author | Park, Jihoon | - |
dc.contributor.author | Kang, Jubin | - |
dc.contributor.author | Kim, Seong-Jin | - |
dc.contributor.author | Chun, Jung-Hoon | - |
dc.contributor.author | Choi, Jaehyuk | - |
dc.date.accessioned | 2023-12-21T13:38:45Z | - |
dc.date.available | 2023-12-21T13:38:45Z | - |
dc.date.created | 2022-08-05 | - |
dc.date.issued | 2022-10 | - |
dc.description.abstract | We present a low-power indirect time-of-flight (iTOF) image sensor with fixed depth noise compensation and dual-mode imaging for depth dynamic range (DDR) enhancement. To reduce the power consumption from high-frequency pixel modulation, a TX driver with a single-sided clock chain is employed in the sensor. The inherent phase delay of the clock chain and the delay of the row bus are measured using row-parallel and column-parallel time-to-digital converters (TDCs) to compensate for the column and row fixed depth noise (FDN). To achieve a wide depth dynamic range (WDDR), the reconfigurable pixels and column circuits support dual-mode: short-range (SR) and long-range (LR) modes. A WDDR image is generated in a single frame through the mixed reconfiguration of the pixel array and interpolation. In addition, the temporal noise is suppressed without a significant time budget through a fast multiple sampling (FMS) scheme with 10b successive approximation register (SAR) analog-to-digital (ADCs). A prototype iTOF image sensor was fabricated using a 110 nm frontside illumination (FSI) CMOS image sensor (CIS) process and fully characterized. The sensor achieved a DDR of 4 m (0.7 to 4.7 m) with less than 1.7% nonlinearity and 0.9% depth noise. The FDN was suppressed to less than 2.1 cm at a low power consumption below 70 mW through the proposed compensation scheme using row and column TDCs. The temporal noise was only 0.48 mV(rms) owing to the FMS. | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, v.69, no.10, pp.3989 - 3999 | - |
dc.identifier.doi | 10.1109/TCSI.2022.3188045 | - |
dc.identifier.issn | 1549-8328 | - |
dc.identifier.scopusid | 2-s2.0-85134253008 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/59067 | - |
dc.identifier.url | https://ieeexplore.ieee.org/document/9822989 | - |
dc.identifier.wosid | 000826065400001 | - |
dc.language | 영어 | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | A Low-Power Indirect Time-of-Flight CMOS Image Sensor With Fixed Depth Noise Compensation and Dual-Mode Imaging for Depth Dynamic Range Enhancement | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalResearchArea | Engineering | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | CMOS image sensor (CIS) | - |
dc.subject.keywordAuthor | column-parallel analog-to-digital converter (ADC) | - |
dc.subject.keywordAuthor | depth dynamic range (DDR) | - |
dc.subject.keywordAuthor | fixed depth noise (FDN) | - |
dc.subject.keywordAuthor | time-of-flight (TOF) image sensor | - |
dc.subject.keywordAuthor | time-to-digital converter (TDC) | - |
dc.subject.keywordPlus | LOCK-IN PIXELS | - |
dc.subject.keywordPlus | LIDAR | - |
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