Measuring time sequence of 3D facial shapes using binocular stereo with color slits

Takahiro Arai; Naoki Ikegaya; Hitoshi Saji

doi:10.1117/12.647968

6 December 2005 Measuring time sequence of 3D facial shapes using binocular stereo with color slits

Takahiro Arai, Naoki Ikegaya, Hitoshi Saji

Proceedings Volume 6051, Optomechatronic Machine Vision; 605110 (2005) https://doi.org/10.1117/12.647968
Event: Optomechatronic Technologies 2005, 2005, Sapporo, Japan

Abstract

Three-dimensional (3D) shape measurement of a human face is useful in various applications, and many researches have been reported until now. In particular, many applications require methods of measuring time series data of 3D shapes by using simple devices. However, in the present, there are a lot of measurement methods with large scale devices under strong restraint conditions, and hence applications of the method are limited. In our research, we use binocular stereo methods with color slits. We measure 3D shape by using a couple of stereo images, and we continue to do the measurement sequentially at high speed. Therefore, our method enables real-time measurement of a human face in motion. Up to now, when featureless objects such as a human face are measured, general methods have found the corresponding points by projecting the slit lights onto the subject and by scanning the subject. Consequently, these methods require a long time to measure the subject, and hence the shape cannot be accurately measured when the object moves. In our method, we extract the color slits projected on the face and make these correspond between the images at a time, and hence, we can achieve high-speed stereo matching even when the subject moves.

Citation Download Citation

Takahiro Arai, Naoki Ikegaya, and Hitoshi Saji "Measuring time sequence of 3D facial shapes using binocular stereo with color slits", Proc. SPIE 6051, Optomechatronic Machine Vision, 605110 (6 December 2005); https://doi.org/10.1117/12.647968

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