A Multi-Resolution Mode CMOS Image Sensor with a Novel Two-Step Single-Slope ADC for Intelligent Surveillance Systems
In this paper, we present a multi-resolution mode CMOS image sensor (CIS) for intelligent surveillance system (ISS) applications. A low column fixed-pattern noise (CFPN) comparator is proposed in 8-bit two-step single-slope analog-to-digital converter (TSSS ADC) for the CIS that supports normal, 1/2...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-06-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/17/7/1497 |
| _version_ | 1817989031954219008 |
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| author | Daehyeok Kim Minkyu Song Byeongseong Choe Soo Youn Kim |
| author_facet | Daehyeok Kim Minkyu Song Byeongseong Choe Soo Youn Kim |
| author_sort | Daehyeok Kim |
| collection | DOAJ |
| description | In this paper, we present a multi-resolution mode CMOS image sensor (CIS) for intelligent surveillance system (ISS) applications. A low column fixed-pattern noise (CFPN) comparator is proposed in 8-bit two-step single-slope analog-to-digital converter (TSSS ADC) for the CIS that supports normal, 1/2, 1/4, 1/8, 1/16, 1/32, and 1/64 mode of pixel resolution. We show that the scaled-resolution images enable CIS to reduce total power consumption while images hold steady without events. A prototype sensor of 176 × 144 pixels has been fabricated with a 0.18 μm 1-poly 4-metal CMOS process. The area of 4-shared 4T-active pixel sensor (APS) is 4.4 μm × 4.4 μm and the total chip size is 2.35 mm × 2.35 mm. The maximum power consumption is 10 mW (with full resolution) with supply voltages of 3.3 V (analog) and 1.8 V (digital) and 14 frame/s of frame rates. |
| first_indexed | 2024-04-14T00:42:06Z |
| format | Article |
| id | doaj.art-193014d87b784ee394d145d6897d41b7 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T00:42:06Z |
| publishDate | 2017-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-193014d87b784ee394d145d6897d41b72022-12-22T02:22:09ZengMDPI AGSensors1424-82202017-06-01177149710.3390/s17071497s17071497A Multi-Resolution Mode CMOS Image Sensor with a Novel Two-Step Single-Slope ADC for Intelligent Surveillance SystemsDaehyeok Kim0Minkyu Song1Byeongseong Choe2Soo Youn Kim3Department of Semiconductor Science, Dongguk University-Seoul, Seoul 04620, KoreaDepartment of Semiconductor Science, Dongguk University-Seoul, Seoul 04620, KoreaDepartment of Information and Telecommunication Engineering, Dongguk University-Seoul, Seoul 04620, KoreaDepartment of Semiconductor Science, Dongguk University-Seoul, Seoul 04620, KoreaIn this paper, we present a multi-resolution mode CMOS image sensor (CIS) for intelligent surveillance system (ISS) applications. A low column fixed-pattern noise (CFPN) comparator is proposed in 8-bit two-step single-slope analog-to-digital converter (TSSS ADC) for the CIS that supports normal, 1/2, 1/4, 1/8, 1/16, 1/32, and 1/64 mode of pixel resolution. We show that the scaled-resolution images enable CIS to reduce total power consumption while images hold steady without events. A prototype sensor of 176 × 144 pixels has been fabricated with a 0.18 μm 1-poly 4-metal CMOS process. The area of 4-shared 4T-active pixel sensor (APS) is 4.4 μm × 4.4 μm and the total chip size is 2.35 mm × 2.35 mm. The maximum power consumption is 10 mW (with full resolution) with supply voltages of 3.3 V (analog) and 1.8 V (digital) and 14 frame/s of frame rates.http://www.mdpi.com/1424-8220/17/7/1497CMOS image sensorfixed pattern noiseintelligent surveillance system (ISS)low power consumptionmulti-mode pixel resolutiontwo-step single-slope ADC |
| spellingShingle | Daehyeok Kim Minkyu Song Byeongseong Choe Soo Youn Kim A Multi-Resolution Mode CMOS Image Sensor with a Novel Two-Step Single-Slope ADC for Intelligent Surveillance Systems Sensors CMOS image sensor fixed pattern noise intelligent surveillance system (ISS) low power consumption multi-mode pixel resolution two-step single-slope ADC |
| title | A Multi-Resolution Mode CMOS Image Sensor with a Novel Two-Step Single-Slope ADC for Intelligent Surveillance Systems |
| title_full | A Multi-Resolution Mode CMOS Image Sensor with a Novel Two-Step Single-Slope ADC for Intelligent Surveillance Systems |
| title_fullStr | A Multi-Resolution Mode CMOS Image Sensor with a Novel Two-Step Single-Slope ADC for Intelligent Surveillance Systems |
| title_full_unstemmed | A Multi-Resolution Mode CMOS Image Sensor with a Novel Two-Step Single-Slope ADC for Intelligent Surveillance Systems |
| title_short | A Multi-Resolution Mode CMOS Image Sensor with a Novel Two-Step Single-Slope ADC for Intelligent Surveillance Systems |
| title_sort | multi resolution mode cmos image sensor with a novel two step single slope adc for intelligent surveillance systems |
| topic | CMOS image sensor fixed pattern noise intelligent surveillance system (ISS) low power consumption multi-mode pixel resolution two-step single-slope ADC |
| url | http://www.mdpi.com/1424-8220/17/7/1497 |
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