Morton (Z) scan based real-time variable resolution CMOS image sensor

Evgeny Artyomov; Yair Rivenson; Guy Levi; Orly Yadid-Pecht

doi:10.1109/TCSVT.2005.848338

Morton (Z) scan based real-time variable resolution CMOS image sensor

Evgeny Artyomov, Yair Rivenson, Guy Levi, Orly Yadid-Pecht

Department of Electrical & Computer Engineering

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

An image sensor architecture with an alternative image scan method, based on Morton (Z) order, is presented. This scan, compared to the conventional row scan, enables faster and efficient average computation of square image blocks. Digital averaging is used and the pixel data is read out with either the original resolution, a 2 × 2 or a 4 × 4 block averaging. A test chip of 128 × 128 array has been implemented in 0.35-μm CMOS technology, has 15% fill factor, is operated by a 3.3-V supply and dissipates 30 mW at video rate.

Original language	English
Pages (from-to)	947-952
Number of pages	6
Journal	IEEE Transactions on Circuits and Systems for Video Technology
Volume	15
Issue number	7
DOIs	https://doi.org/10.1109/TCSVT.2005.848338
State	Published - 1 Jul 2005

Keywords

Active pixel sensor
Averaging
Block processing
CMOS
Image sensor
Morton order
Variable resolution

ASJC Scopus subject areas

Media Technology
Electrical and Electronic Engineering

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10.1109/TCSVT.2005.848338

Cite this

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title = "Morton (Z) scan based real-time variable resolution CMOS image sensor",

abstract = "An image sensor architecture with an alternative image scan method, based on Morton (Z) order, is presented. This scan, compared to the conventional row scan, enables faster and efficient average computation of square image blocks. Digital averaging is used and the pixel data is read out with either the original resolution, a 2 × 2 or a 4 × 4 block averaging. A test chip of 128 × 128 array has been implemented in 0.35-μm CMOS technology, has 15% fill factor, is operated by a 3.3-V supply and dissipates 30 mW at video rate.",

keywords = "Active pixel sensor, Averaging, Block processing, CMOS, Image sensor, Morton order, Variable resolution",

author = "Evgeny Artyomov and Yair Rivenson and Guy Levi and Orly Yadid-Pecht",

note = "Funding Information: Manuscript received December 23, 2003; revised November 1, 2004. This work was supported in part by the Israeli Ministry of Science. This paper was recommended by Associate Editor L. G. Chen. The authors are with The VLSI Systems Center, Ben-Gurion University, Beer-Sheva 84105, Israel (e-mail: [email protected]; [email protected]). Digital Object Identifier 10.1109/TCSVT.2005.848338",

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AU - Rivenson, Yair

AU - Levi, Guy

AU - Yadid-Pecht, Orly

N1 - Funding Information: Manuscript received December 23, 2003; revised November 1, 2004. This work was supported in part by the Israeli Ministry of Science. This paper was recommended by Associate Editor L. G. Chen. The authors are with The VLSI Systems Center, Ben-Gurion University, Beer-Sheva 84105, Israel (e-mail: [email protected]; [email protected]). Digital Object Identifier 10.1109/TCSVT.2005.848338

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N2 - An image sensor architecture with an alternative image scan method, based on Morton (Z) order, is presented. This scan, compared to the conventional row scan, enables faster and efficient average computation of square image blocks. Digital averaging is used and the pixel data is read out with either the original resolution, a 2 × 2 or a 4 × 4 block averaging. A test chip of 128 × 128 array has been implemented in 0.35-μm CMOS technology, has 15% fill factor, is operated by a 3.3-V supply and dissipates 30 mW at video rate.

AB - An image sensor architecture with an alternative image scan method, based on Morton (Z) order, is presented. This scan, compared to the conventional row scan, enables faster and efficient average computation of square image blocks. Digital averaging is used and the pixel data is read out with either the original resolution, a 2 × 2 or a 4 × 4 block averaging. A test chip of 128 × 128 array has been implemented in 0.35-μm CMOS technology, has 15% fill factor, is operated by a 3.3-V supply and dissipates 30 mW at video rate.

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KW - Averaging

KW - Block processing

KW - CMOS

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Morton (Z) scan based real-time variable resolution CMOS image sensor

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Keywords

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