Zhou Minniu, Matoba Osamu, Kitagawa Yoichi, Takizawa Yukako, Matsumoto Tetsuya, Ueda Hideaki, Mizuno Akio, Kosaka Nobuyuki
Department of Information Technology, Hyogo Prefectural Institute of Technology, 3-1-12 Yukihira-cho, Suma-ku, Kobe 654-0037, Japan.
Appl Opt. 2010 Jul 1;49(19):3780-5. doi: 10.1364/AO.49.003780.
We evaluate the imaging characteristics of an integrated optical imaging element that is used to obtain images from opposite directions in one imaging sensor for a three-dimensional eye-gaze detection system. The element consists of a transmission-type holographic imaging element, a reflection-type holographic imaging element, and a noise reduction filter. In the evaluation of the imaging characteristics, modulation transfer functions of both the reflection-type and the transmission-type holographic imaging elements are evaluated. Results indicate that both holographic imaging elements have enough resolution, even under white-light illumination conditions, for eye-gaze detection. We also demonstrate the simultaneous detection of images by an artificial eye and objects by using the integrated element under white light or sunlight.
我们评估了一种集成光学成像元件的成像特性，该元件用于在三维视线检测系统的一个成像传感器中从相反方向获取图像。该元件由透射型全息成像元件、反射型全息成像元件和降噪滤波器组成。在成像特性评估中，对反射型和透射型全息成像元件的调制传递函数进行了评估。结果表明，即使在白光照明条件下，这两种全息成像元件也具有足够的分辨率用于视线检测。我们还展示了在白光或阳光下使用该集成元件同时检测人造眼的图像和物体。
