| 1. | Hybrid photoelectric joint transform correlator 光电混合联合变换相关器 |
| 2. | Real - timejoint transform correlation for the detection and recognition of objects 实时联合变换相关器目标探测与识别 |
| 3. | Fingerprint identification using a real - time high efficiency joint transform correlator 实时高效联合变换相关器作指纹识别 |
| 4. | Rotation - invariant target detection by using a modified fringe - adjusted circular harmonic joint transform correlator 修正条纹调节的圆谐联合变换相关器作旋转不变的目标检测 |
| 5. | In conclusion , the experiment results show that it is feasible to combine the photorefracitve crystal with the joint transform correlator 研究结果表明,将光折变晶体与联合变换相关器相结合构成光折变联合变换相关器是可行的。 |
| 6. | And the photorefractive edge - enhancement joint transform correlator can provide higher 1 correlation peak and narrower correl ation width with the presence of electric - fields 应用于光折变边缘增强联合变换相关器时,通过外加电场,可使联合变换相关器的相关识别性能进一步改善。 |
| 7. | This paper analyzed the modulation and filter technique on joint power spectrum ( jps ) , which reduced the intensity and width of the strong dc component existing in the classical joint transform correlator , improved the recognition ability greatly 针对联合变换相关器,分析了对联合功率谱的调制和滤波技术,缩小了峰值半宽度、削弱了零级自相关的能量,改善了经典联合变换相关器识别性能。 |
| 8. | And the steady - state coupling response time rdecreases from 0 . 8s to 0 . 3s . but there are almost no changes in 2peak with fields applied . ( 2 ) using the characters of two - beam coupling in sbn : 61 : cr crystals under applied fields , applications in image edge - enhancement and photorefractive edge - enhancement joint transform correlator are investigated ( 2 )研究了外加直流电场作用下sbn 61 cr晶体的二波耦合特性在光学图像边缘增强以及光折变边缘增强联合变换相关器等方面的应用,讨论了外电场对光折变边缘增强及光折变联合变换相关识别效果的影响。 |
| 9. | The joint transform correlator ( jtc ) is paid more attention by researchers than the matched filtering correlator ( mfc ) with its advantages , such as high spatial bandwidth product , without integrated filtering and real - time operation etc . photorefractive crystals have some advantages , such as fast response , high spatial resolution and large storage capacity etc . we can exert both advantages by combining the photorefractive crystal with the jtc 与匹配滤波相关器相比,联合变换相关器具有诸多优点,如空间带宽积高、无需滤波综合、易于实时操作等,所以近年来更加引起人们的研究兴趣。光折变晶体具有响应速度快、空间分辨率高、存储容量大等优点。将光折变晶体与联合变换相关器相结合构成光折变联合变换相关器,就可以充分发挥二者的优势。 |
| 10. | In the image recognition system of an optical - electrical hybrid joint transform correlator , the same object and the false object comparing with reference image could be well recognized , but the distorted image of the scale and rotation transformation was difficultly recognized and even could not be recognized 摘要在光电混合联合变换相关器图像识别系统中,对与参考图像完全相同的真目标图像和不同的假目标图像能实现完全识别,但对于与参考图像间存在旋转和比例变化的目标图像却很难识别,甚至无法识别。 |