Adaptive Gain and Analog Wavelet Transform for Low-Power Infrared Image Sensors
A decorrelation and analog-to-digital conversion scheme aiming to reduce the power consumption of infrared image sensors is presented in this paper. To exploit both intraframe redundancy and inherent photon shot noise characteristics, a column based 1D Haar analog wavelet transform combined with var...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
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| Series: | Active and Passive Electronic Components |
| Online Access: | http://dx.doi.org/10.1155/2012/610176 |
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| _version_ | 1832556613588746240 |
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| author | P. Villard T. Thabuis M. Belleville G. Sicard G. Decaens M. Zecri |
| author_facet | P. Villard T. Thabuis M. Belleville G. Sicard G. Decaens M. Zecri |
| author_sort | P. Villard |
| collection | DOAJ |
| description | A decorrelation and analog-to-digital conversion scheme aiming to reduce the power consumption of infrared image sensors is presented in this paper. To exploit both intraframe redundancy and inherent photon shot noise characteristics, a column based 1D Haar analog wavelet transform combined with variable gain amplification prior to A/D conversion is used. This allows to use only an 11-bit ADC, instead of a 13-bit one, and to save 15% of data transfer. An 8×16 pixels test circuit demonstrates this functionality. |
| format | Article |
| id | doaj-art-6ae2c94198174f88b9b527a687cd31b2 |
| institution | Kabale University |
| issn | 0882-7516 1563-5031 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Active and Passive Electronic Components |
| spelling | doaj-art-6ae2c94198174f88b9b527a687cd31b22025-02-03T05:44:49ZengWileyActive and Passive Electronic Components0882-75161563-50312012-01-01201210.1155/2012/610176610176Adaptive Gain and Analog Wavelet Transform for Low-Power Infrared Image SensorsP. Villard0T. Thabuis1M. Belleville2G. Sicard3G. Decaens4M. Zecri5CEA LETI, MINATEC Campus, 38054 Grenoble, FranceCEA LETI, MINATEC Campus, 38054 Grenoble, FranceCEA LETI, MINATEC Campus, 38054 Grenoble, FranceTIMA Laboratory, 38031 Grenoble, FranceSOFRADIR, 38113 Veurey-Voroize, FranceSOFRADIR, 38113 Veurey-Voroize, FranceA decorrelation and analog-to-digital conversion scheme aiming to reduce the power consumption of infrared image sensors is presented in this paper. To exploit both intraframe redundancy and inherent photon shot noise characteristics, a column based 1D Haar analog wavelet transform combined with variable gain amplification prior to A/D conversion is used. This allows to use only an 11-bit ADC, instead of a 13-bit one, and to save 15% of data transfer. An 8×16 pixels test circuit demonstrates this functionality.http://dx.doi.org/10.1155/2012/610176 |
| spellingShingle | P. Villard T. Thabuis M. Belleville G. Sicard G. Decaens M. Zecri Adaptive Gain and Analog Wavelet Transform for Low-Power Infrared Image Sensors Active and Passive Electronic Components |
| title | Adaptive Gain and Analog Wavelet Transform for Low-Power Infrared Image Sensors |
| title_full | Adaptive Gain and Analog Wavelet Transform for Low-Power Infrared Image Sensors |
| title_fullStr | Adaptive Gain and Analog Wavelet Transform for Low-Power Infrared Image Sensors |
| title_full_unstemmed | Adaptive Gain and Analog Wavelet Transform for Low-Power Infrared Image Sensors |
| title_short | Adaptive Gain and Analog Wavelet Transform for Low-Power Infrared Image Sensors |
| title_sort | adaptive gain and analog wavelet transform for low power infrared image sensors |
| url | http://dx.doi.org/10.1155/2012/610176 |
| work_keys_str_mv | AT pvillard adaptivegainandanalogwavelettransformforlowpowerinfraredimagesensors AT tthabuis adaptivegainandanalogwavelettransformforlowpowerinfraredimagesensors AT mbelleville adaptivegainandanalogwavelettransformforlowpowerinfraredimagesensors AT gsicard adaptivegainandanalogwavelettransformforlowpowerinfraredimagesensors AT gdecaens adaptivegainandanalogwavelettransformforlowpowerinfraredimagesensors AT mzecri adaptivegainandanalogwavelettransformforlowpowerinfraredimagesensors |