A 4-Tap CMOS Time-of-Flight Image Sensor with In-pixel Analog Memory Array Achieving 10Kfps High-Speed Range Imaging and Depth Precision Enhancement

Chia Chi Kuo; Rihito Kuroda

doi:10.1109/VLSITechnologyandCir46769.2022.9830420

A 4-Tap CMOS Time-of-Flight Image Sensor with In-pixel Analog Memory Array Achieving 10Kfps High-Speed Range Imaging and Depth Precision Enhancement

Chia Chi Kuo, Rihito Kuroda

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

This paper presents a new 4-tap indirect Time-of-Flight (TOF) image sensor with in-pixel analog memory array and sub-frame integration achieving up to 10Kfps high-speed range imaging with 8 recording frames and 1.67% depth noise from 0.4-1.5m. This sensor also operates with an improved depth precision of 1.3% from 0.4-4.2m at 90fps by averaging the in-pixel memory. 85% demodulation contrast was obtained at 80MHz modulation frequency owing to the 4-tap charge modulator with high-speed charge collection photodiode.

Original language	English
Title of host publication	2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	48-49
Number of pages	2
ISBN (Electronic)	9781665497725
DOIs	https://doi.org/10.1109/VLSITechnologyandCir46769.2022.9830420
Publication status	Published - 2022
Event	2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022 - Honolulu, United States Duration: 2022 Jun 12 → 2022 Jun 17

Publication series

Name	Digest of Technical Papers - Symposium on VLSI Technology
Volume	2022-June
ISSN (Print)	0743-1562

Conference

Conference	2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022
Country/Territory	United States
City	Honolulu
Period	22/6/12 → 22/6/17

Keywords

demodulation contrast
depth noise
high-speed 3D imaging
indirect time-of-flight (TOF)

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/VLSITechnologyandCir46769.2022.9830420

Cite this

Kuo, C. C., & Kuroda, R. (2022). A 4-Tap CMOS Time-of-Flight Image Sensor with In-pixel Analog Memory Array Achieving 10Kfps High-Speed Range Imaging and Depth Precision Enhancement. In 2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022 (pp. 48-49). (Digest of Technical Papers - Symposium on VLSI Technology; Vol. 2022-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VLSITechnologyandCir46769.2022.9830420

A 4-Tap CMOS Time-of-Flight Image Sensor with In-pixel Analog Memory Array Achieving 10Kfps High-Speed Range Imaging and Depth Precision Enhancement. / Kuo, Chia Chi; Kuroda, Rihito.

2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022. Institute of Electrical and Electronics Engineers Inc., 2022. p. 48-49 (Digest of Technical Papers - Symposium on VLSI Technology; Vol. 2022-June).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kuo, CC & Kuroda, R 2022, A 4-Tap CMOS Time-of-Flight Image Sensor with In-pixel Analog Memory Array Achieving 10Kfps High-Speed Range Imaging and Depth Precision Enhancement. in 2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022. Digest of Technical Papers - Symposium on VLSI Technology, vol. 2022-June, Institute of Electrical and Electronics Engineers Inc., pp. 48-49, 2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022, Honolulu, United States, 22/6/12. https://doi.org/10.1109/VLSITechnologyandCir46769.2022.9830420

Kuo CC, Kuroda R. A 4-Tap CMOS Time-of-Flight Image Sensor with In-pixel Analog Memory Array Achieving 10Kfps High-Speed Range Imaging and Depth Precision Enhancement. In 2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022. Institute of Electrical and Electronics Engineers Inc. 2022. p. 48-49. (Digest of Technical Papers - Symposium on VLSI Technology). doi: 10.1109/VLSITechnologyandCir46769.2022.9830420

Kuo, Chia Chi ; Kuroda, Rihito. / A 4-Tap CMOS Time-of-Flight Image Sensor with In-pixel Analog Memory Array Achieving 10Kfps High-Speed Range Imaging and Depth Precision Enhancement. 2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022. Institute of Electrical and Electronics Engineers Inc., 2022. pp. 48-49 (Digest of Technical Papers - Symposium on VLSI Technology).

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abstract = "This paper presents a new 4-tap indirect Time-of-Flight (TOF) image sensor with in-pixel analog memory array and sub-frame integration achieving up to 10Kfps high-speed range imaging with 8 recording frames and 1.67% depth noise from 0.4-1.5m. This sensor also operates with an improved depth precision of 1.3% from 0.4-4.2m at 90fps by averaging the in-pixel memory. 85% demodulation contrast was obtained at 80MHz modulation frequency owing to the 4-tap charge modulator with high-speed charge collection photodiode.",

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A 4-Tap CMOS Time-of-Flight Image Sensor with In-pixel Analog Memory Array Achieving 10Kfps High-Speed Range Imaging and Depth Precision Enhancement

Abstract

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Keywords

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