A Two-dimensional Image Sensor With the Ability of Detecting the Incident Angle of a Light

一种具有检测光入射角能力的二维图像传感器

• 批准号: 14550419
• 负责人: BABA Mitsuru
• 金额: $ 1.79万
• 依托单位: OKAYAMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550419/
• 关键词: Image sensor; Light spot; Incident angle of a light; Laser rangefincer; CCD; Three-dimensional shape; 2次元画像センサ

To acquire spatial information, most laser-based position measurement systems, such as rangefinders and the motion capture system, are utilized so as to receive the reflected light after light has been projected onto an object, or to directly receive the light from a light source attached to the object. A laser is often used for such a system because it has the advantage of high intensity, high directivity, and monochromaticity [1]. In measuring systems, the high directivity of the laser is useful from two points of view : the transmission of the energy of the light and the maintenance of the optical path. The transmission of the energy of the light is often used for the measurement. In comparison, the maintenance of the optical path has seen less use. Since information on the optical path includes information on the position or orientation of objects, utilization of the information on the optical path in measurements has great potential for development in laser-based measurement syste … More ms.In order to acquire information on the optical path, it is necessary to use a sensor that is able to detect both the position and the incident angle of the light. A sensor exclusively for detecting the position of alight spot and a sensor exclusively for detecting the incident angle have already been developed. The sensor typically used for the former is a CCD (charge coupled device) [2]. or a PSD (position sensitive device) [3]. An example of the latter has been marketed by the Hamamatsu Photonics Co [4]. However, a sensor which can simultaneously detect the position and the angle of a light spot has not yet been developed, and up to now, conventional sensors such as the CCD or PSD have been used. Ordinary laser-based position measurement techniques using a CCD or PSD have, as a result, employed algorithms exclusively using the light spot's pixel position.if an image sensor can detect both the incident angle of a light and its position, this image sensor could be effectively applied to a number of situations. Thus, we have previously proposed a one-dimensional sensor type [5]. which can measure a one-dimensional position and one-dimensional incident angle onto the sensor at a given position of a y-direction.In this project, we describe the development of the extended version of the previous sensor, consisting of a two dimensional type sensor which can measure a two-dimensional position and two-dimensional incident angle.We have designed and built a prototype of this two-dimensional sensor system in which the proposed principle is implemented. We first examined its accuracy by measuring the position and the incident angle of the prototype sensor system. Next, we tested the usefulness of the sensor by applying it to a two-dimensional position measurement.Experimental results demonstrate the practicable accuracy of the proposed position sensors. Less

为了获取空间信息，大多数基于激光的位置测量系统（诸如测距仪和运动捕捉系统）被利用，以便在光被投射到对象上之后接收反射光，或者直接接收来自附接到对象的光源的光。激光器通常用于这种系统，因为它具有高强度，高方向性和单色性的优点[1]。在测量系统中，激光的高方向性从两个角度来看是有用的：光能量的传输和光路的维持。光能量的传输通常用于测量。相比之下，光路的维护使用较少。由于光路信息中包含了物体的位置或方位信息，因此利用光路信息进行测量在激光测量系统中具有很大的发展潜力。 关于我们 为了获取关于光路的信息，需要使用能够检测光的位置和入射角两者的传感器。已经开发出专门用于检测光点位置的传感器和专门用于检测入射角的传感器。通常用于前者的传感器是CCD（电荷耦合器件）[2]。或PSD（位置敏感器件）[3]。后者的一个例子已经由Hamamatsu Photonics Co销售[4]。然而，还没有开发出能够同时检测光点的位置和角度的传感器，并且到目前为止，已经使用了诸如CCD或PSD的传统传感器。因此，使用CCD或PSD的普通基于激光的位置测量技术采用了专门使用光斑像素位置的算法。如果图像传感器可以检测光的入射角及其位置，则该图像传感器可以有效地应用于许多情况。因此，我们之前已经提出了一维传感器类型[5]。其可以测量在y方向的给定位置处的一维位置和一维入射到传感器上的角度。在该项目中，我们描述了先前传感器的扩展版本的开发，由一个可以测量二维位置和二维入射角的二维型传感器组成，我们设计并建造了一个这种二维型传感器的原型，三维传感器系统，其中所提出的原则是实施。我们首先通过测量原型传感器系统的位置和入射角来检查其精度。接着，我们将此感测器应用于二维位置量测，实验结果显示此感测器具有实用的准确度。少

项目成果

馬場 充 他3名: "表面反射特性が未知な物体の3次元形状抽出可能なレンジファインダ"電子情報通信学会論文誌 D-II. J85-D-II, 6. 1025-1037 (2002)

Mitsuru Baba 和其他 3 人：“测距仪能够提取具有未知表面反射特性的物体的 3D 形状”，电子、信息和通信工程师协会汇刊 D-II，6. 1025-1037 (2002 年) ）

Mitsuru Baba, Daisuke Narita, Kozo Ohtani: "A New Laser-Based Position Sensor With the Ability of Detecting the Incident Angle of a Light"Proc.the 20th IEEE Instrumentation an Measurement Technology Conference. (in press).

Mitsuru Baba、Daisuke Narita、Kozo Ohtani：“一种能够检测光入射角的新型激光位置传感器”Proc.第 20 届 IEEE 仪器测量技术会议。

Mitsuru Baba, Daisuke, Narita, Kozo Ohtani: "A New Method of Measuring the 3-D Shape and Surface Reflectance of an Object Using a Laser Rangefinder"The 21th IEEE Instrumentation and Measurement Technology Conference (IMTC 2004.. (印刷中).

Mitsuru Baba、Daisuke、Narita、Kozo Ohtani：“使用激光测距仪测量物体 3-D 形状和表面反射率的新方法”第 21 届 IEEE 仪器和测量技术会议 (IMTC 2004..（印刷中）。

Mitsuru Baba, Daisuke, Narita, Kozo Ohtani: "A Laser 3-D Imaging Sensor for Robots Independent of Environmental Constraints and with the Ability to Measure Specular Objects"Proc.13th International Symposium on Measurement and Control in Robotics. 253-258

Mitsuru Baba、Daisuke、Narita、Kozo Ohtani：“用于机器人的激光 3-D 成像传感器，不受环境约束并能够测量镜面物体”Proc.13th 国际机器人测量与控制研讨会。

K.Ohtani, M.Baba: "A Rangefinding Approach by Detecting the Position and the Incident Angle of a Light-Stripe"Proc.of the 19th IEEE Instrumentation and Measurement Technology Conference. Vol.1. 1572-1588 (2002)

K.Ohtani、M.Baba：第 19 届 IEEE 仪器和测量技术会议的“通过检测光带位置和入射角的测距方法”。