| 基于列并行采样CIS的片上ISP颜色插补算法 |
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| 引用本文： | 胡燕翔,姚素英,池国泉,徐江涛.基于列并行采样CIS的片上ISP颜色插补算法[J].传感技术学报,2007,20(5):1072-1076. |
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| 作者姓名： | 胡燕翔 姚素英 池国泉 徐江涛 |
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| 作者单位： | 天津大学ASIC设计中心,天津,300072;天津师范大学计算机与信息工程学院,天津,300074;天津大学ASIC设计中心,天津,300072 |
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| 基金项目： | 国家自然科学基金，天津市教委资助项目 |
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| 摘 要： | 对单片CMOS图像传感器中的数字图像处理系统(ISP)开展研究,提出一种基于列并行采样模式的实时颜色插补方法和ISP系统架构,以减小片上数据缓冲区,同时保证插补模块的实时性.结合列并行采样的特点对基于光谱相关和空间相关的方法进行修正,保证图像获取部分和处理处理部分紧密结合;使用G通道进行场景光强评价,将自动积分时间调整和插补模块组合实现,有效降低面积和功耗.仿真结果证明该方法的有效性和实时性.
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| 关 键 词： | CIS ISP SoC 颜色插补 自动积分时间控制 |
| 文章编号： | 1004-1699（2007）05-1072-05 |
| 收稿时间： | 2006-06-27 |
| 修稿时间： | 2006-08-09 |
A Color Interpolation Algorithm for Single Chip CIS Using Rolling Exposure |
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| Hu yan_xiang,Yao Su_ying Chi Guo_quan Xu Jiang_tao.A Color Interpolation Algorithm for Single Chip CIS Using Rolling Exposure[J].Journal of Transduction Technology,2007,20(5):1072-1076. |
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| Authors: | Hu yan_xiang Yao Su_ying Chi Guo_quan Xu Jiang_tao |
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| Affiliation: | 1. ASIC Design Center, TianJ in University, Tianjin 300072, China ; 2. Computer Engineering School, Tianjin Normal University, Tianjin 300074, China |
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| Abstract: | A color interpolation algorithm and ISP architecture used for CMOS image sensor based on rolling exposure is proposed.Adopting spectral correlation and space correlation,this algorithm exploits the parallelism between reading out and interpolation by widening the interface of image's acquisition and processing.These methods can decrease the buffer on chip,meanwhile implement the interpolation real time.By using G color channel as the illumination information,the automatic exposure control is integrated with color module,this can decease the area and power consumption effectively.This method has been simulated with FPGA platform;simulated result indicates the validity and the correctness of this method. |
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| Keywords: | CIS ISP SoC |
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