A 3-D Camera With Adaptable Background Light Suppression Using Pixel-Binning and Super-Resolution
Cited 0 times inCited 0 times in
- A 3-D Camera With Adaptable Background Light Suppression Using Pixel-Binning and Super-Resolution
- Cho, Jihyun; Choi, Jaehyuk; Seong-Jin Kim; Shin, Jungsoon; Park, Seokjun; Kim, James D. K.; Yoon, Euisik
- Issue Date
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.49, no.10, pp.2319 - 2332
- This paper presents a CMOS time-of-flight (TOF) 3-D camera employing a column-level background light (BGL) suppression scheme for high-resolution outdoor imaging. The use of the column-level approach minimizes a pixel size for high-density pixel arrays. Pixel-binning and super-resolution can be adaptably applied for an optimal BGL suppression at given spatiotemporal resolutions. A prototype sensor has been fabricated by using 0.11 μm CMOS processes. The sensor achieved a fill factor of 24% in a pixel pitch of 5.9 μm which is the smallest among all the reported TOF cameras up to date. Measurement results showed the temporal noise of 1.47 cm-rms with a 100 ms integration time at a demodulation frequency of 12.5 MHz using a white target at 1 m distance. The non-linearity was measured as 1% over the range of 0.75 m ~ 4 m. The BGL suppression over 100 klx was achieved from indoor and outdoor experiments, while the BGL-induced offset was maintained less than 2.6 cm under 0 ~ 100 klx.
- Appears in Collections:
- EE_Journal Papers
- Files in This Item:
- There are no files associated with this item.
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.