Development of the Correlation Image Sensor and Its Application to Pattern Imaging Technology

[1]相关图像传感器的开发和评估1）200x200像素CIS使用VDEC提供的0.35um CMOS工艺开发。基本功能得到充分确认。获得了大量的数据，以提高精度。[2]新型成像技术的发展1）法向量成像：通过使用调制三重照明将法向量转换为反射光的强度。然后，CIS实时检测其幅值和相位，重建法向量图。该系统还扩展到非朗伯物体。2）外差莫尔实时三维成像仪：利用空间相位调制照明，将空间信息转换为光强的相位。然后CIS实时地对投影光的相位进行调整。3）外差式振动测量：利用调制器将振动模式转换为反射光的强度，从而实现对振动信号的测量。 ...更多信息 艾德结构光。4）偏振成像仪：通过在CIS前旋转起偏器，将偏振态转换为强度。然后CIS提取偏振信息。提出了一种在入射光路和出射光路上分别使用两个旋转偏振器的成像椭偏仪。5）实时光学相干层析成像仪：利用白色光干涉实现了极高的深度分辨率。相关图像传感器使得可以可视化的包络和相位的白色光干涉，而无需任何扫描的深度。6）不自主眼动视觉：通过振动图像传感器或聚焦透镜的特征提取方法提出。通过选择合适的参考信号，可以在一个单一的帧中提取所需的特征。7）锁定磁光成像仪：提出了使用CIS的钢板漏磁检测。该系统可以同时观测交流磁场的幅值和相位分布。[3]图像处理和理解1）使用3D信息的面部识别：使用我们的法向量成像系统捕获的面部图像来识别每个人。它的特点是1）鲁棒的环境照明和2）不依赖于面部的方向。少

[1]Development and Evaluation of the Correlation Image Sensor1)The 200x200 pixels CIS was developed using 0.35um CMOS process provided by VDEC. The basic functions were fully confirmed. Plenty of data for improving the accuracy were obtained.[2]Development of Novel Imaging Technologies1)Normal Vector Imaging : Normal vector is converted to the intensity of the reflected light by using modulated tri-illumination. Then CIS demodulates its amplitude and phase in real-time and normal vector map is reconstructed. This system was also extended to the non-Lambertian object.2)Heterodyne Moire Realtime 3-D Imager : The space information is converted to the phase of the light intensity by using spatially phase-modulated illumination. Then CIS demodulates phase of the projected light in real-time. The new phase-unwrapping using time-domain constraint was also proposed.3)Heterodyne vibration measurement : The vibration pattern is converted into the intensity of the reflected light by using modulat … More ed structured light. Then CIS demodulates vibration amplitude and phase simultaneously with reference signals of the beat frequency.4)Polarimetric Imager : The polarization is converted into the intensity by using rotating polarizer in front of the CIS. Then CIS demodulates polarization information. The imaging ellipsometer was also proposed which utilizes two rotating polarizer putted in the incident path and outgoing path respectively.5)Real-time Optical Coherence Tomographic Imager : The very high resolution in depth was implemented by white light interference. The correlation image sensor makes it possible to visualize the envelope and phase of the white light interference without any scanning in depth.6)Involuntary eye-movement vision : The feature extraction method by vibrating the image sensor or the focusing lens was proposed. By choosing reference signal appropriately, desired features can be extracted in a single frame.7)Lock-in magneto-optical imager : Leakage flux inspection of the steel plate by using CIS was proposed. This system can observe the distribution of both amplitude and phase of AC magnetic field.[3]Image Processing and Understanding1)Face recognition using 3D information : Facial images captured by our normal vector imaging system are used to recognize each person. Its features are 1)robust to the ambient illumination and 2)non-dependency on the orientation of the face. Less