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Due to the vastness of the vineyards in Hokkaido, it is very hard for its workers to eradicate weeds. In order to solve this problem, we aim to develop a weeding robot with a multi-link manipulator, using a visual sensing technique of stereo camera system for recognizing the trunk of grape. However this technique lacks accuracy because the stereo camera system generally cannot avoid the error in measurement...
In this paper, we propose the face detection method for tracking a human by a mobile-robot. We obtain images from a web camera, and detect faces by focusing on skin colors and eyes as facial features. If we detect faces from images, we trace the detected human, take a picture of him/her, and print it automatically by using the mobile-robot. In order to show the effectiveness of the proposed method,...
The aim of our research is to realize a navigation method that can be applied to various type of mobile robots and environments. In this paper, we propose a method to estimate robot's location for the situation in which camera posture varies irregularly. Our method consists of two processes, generation of a feature vector from the image acquired by the robot and identification of a location of the...
Most ordinary machines are not designed to assist human to improve one's skill. Human is often demanded to learn an operation of a machine implicitly. To improve this situation, new-generation machine has to consider user's skill, and to assist the human-machine system to achieve best performance. As the first stage, a function to evaluate user's skill is needed to the new mechatronics. In this paper,...
In this research, the panoramic image with distance information is introduced in order to realize the distance from the image used for the robot monitoring system. The most important thing to acquire depth information from the camera is how certainly the distance data were detected from the image that has only 2D information, and the zoom-lens camera is applied in which the depth information is obtained...
Measurement of gaze is effective to evaluate human operator's attention, one's operation skills, perceptional capability and so on. Especially, gaze duration, called fixation time, is often utilized. Generally, it is said that long fixation time is detected when the operator pays attention to something intentionally. However, the duration also depends on saliency of displayed image, especially humans'...
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