| 结合空间关系的颜色直方图检索算法 |
| |
| 引用本文： | 张水利,郑秀萍,侯雪梅. 结合空间关系的颜色直方图检索算法[J]. 山西电子技术, 2009, 0(1): 22-24 |
| |
| 作者姓名： | 张水利 郑秀萍 侯雪梅 |
| |
| 作者单位： | [1]延安大学物理与电子信息学院,陕西延安716000 [2]太原科技大学电子信息工程学院,山西太原030024 [3]西安邮电学院信息与控制系,陕西西安710121 |
| |
| 基金项目： | 注：本文题目为湖北省2008年“TI”杯电子设计竞赛本科组A题,本组同学获得二等奖 |
| |
| 摘 要： | 首先根据所选取的图像库的特征，对真彩图像各颜色分量赋以权重，利用直方图检索，得到检索结果与权重比例大小选择的关系；再针对直方图检索没有表达颜色的空间分布信息的缺点，在一般直方图检索的基础上引入了一维的空间关系矢量，将直方图和空间关系结合起来进行检索，提高了检索的性能。
|
| 关 键 词： | 图像检索 颜色直方图 空间关系 |
Design and Implement of Displacement Measuring System |
| |
| Affiliation: | Yang Feng He Xiao-hui Zhao Tian-fa Yang Qing(Department of Electrical Engineering, Hubei University for Nationalities, Enshi Hubei 445000, China) |
| |
| Abstract: | This system adopts 16 bits MCU as the core control device to achieve a bar magnet exactitude measure of small range displacement. The design first adopts DDS chip AD9851 to obtain a sine signal of frequency for 100kHz, and adopts THS4503 to achieve the output of difference and drive the primary winding of line variable difference transformer. The output signal of double-sec ondary difference transformer is separately amplified with IN118, processes half wave rectify and electron filtrate, gets the stable di rect voltages and achieves the real time collection of bar magnet displacement signal. The system makes an A/D conversion to two DC signal separately and sends into the MCU analysis processing, finally, the LCD displays the computation result. The system has th features of reasonable structure, simple design, steady function and has more strong anti-jamming ability. |
| |
| Keywords: | sisplacement measure MCU bar magnet full difference amplifier |
| 本文献已被 维普 等数据库收录！ |
|
