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A Wide-Dynamic-Range Compression Image Sensor With Negative-Feedback Resetting
| Title: | A Wide-Dynamic-Range Compression Image Sensor With Negative-Feedback Resetting |
| Authors: | Ikebe, M. Browse this author →KAKEN DB | | Saito, K. Browse this author |
| Keywords: | CMOS image sensor | | dynamic range compression | | individual reset | | negative-feedback reset |
| Issue Date: | May-2007 |
| Publisher: | IEEE |
| Journal Title: | IEEE Sensors Journal |
| Volume: | 7 |
| Issue: | 5 |
| Start Page: | 897 |
| End Page: | 904 |
| Publisher DOI: | 10.1109/JSEN.2007.894897 |
| Abstract: | A CMOS image sensor capable of wide-dynamic-range compression is proposed. This sensor has two main features. It uses a negative-feedback technique to set any intermediate voltage into photodiode (PD) capacitance in the pixel circuit. It also uses a quasi-holding function by resetting the pixel-output voltage into PD capacitance. Dynamic range compression is achieved by individually selecting pixels and by setting an intermediate voltage or performing quasi-holding with respect to each pixel. Output data has a polygon-like form corresponding to a change from high sensitivity to low sensitivity as optical intensity becomes stronger. Experimental results obtained with a chip fabricated using a 0.25-mum CMOS process demonstrate dynamic range compression. |
| Rights: | ©2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. IEEE, IEEE SENSORS JOURNAL, 7, 5, 2007, 897-904. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/26422 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 池辺 将之
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