Abstract: A method and an apparatus for capturing facial expressions are provided, in which different facial expressions of a user are captured through a face recognition technique. In the method, a plurality of sequentially captured images containing human faces is received. Regional features of the human faces in the images are respectively captured to generate a target feature vector. The target feature vector is compared with a plurality of previously stored feature vectors to generate a parameter value. When the parameter value is higher than a threshold, one of the images is selected as a target image. Moreover, a facial expression recognition and classification procedures can be further performed. For example, the target image is recognized to obtain a facial expression state, and the image is classified according to the facial expression state.

Abstract: A method and an apparatus for capturing facial expressions are provided, in which different facial expressions of a user are captured through a face recognition technique. In the method, a plurality of sequentially captured images containing human faces is received. Regional features of the human faces in the images are respectively captured to generate a target feature vector. The target feature vector is compared with a plurality of previously stored feature vectors to generate a parameter value. When the parameter value is higher than a threshold, one of the images is selected as a target image. Moreover, a facial expression recognition and classification procedures can be further performed. For example, the target image is recognized to obtain a facial expression state, and the image is classified according to the facial expression state.

Abstract: A centrifugal force sensing device is disclosed, which includes a first rotating shaft, two first movable and two first fixing sleeves, a first and a second weight, two first and two second linkages, a restoration element, a first sensing unit for sensing centrifugal force, and two fixers. The two first movable sleeves are disposed through the first rotating shaft. The two first linkages are connected to the first weight and the two first movable sleeves. The restoration element having a fixing block and two first damping elements is disposed at the first rotating shaft. The two second linkages are connected to the second weight and the two first movable sleeves. The two first fixing sleeves are fixed at the first rotating shaft and respectively located between each of the two first movable sleeves and one of the two fixers.

Abstract: A centrifugal force sensing device is disclosed, which includes a first rotating shaft, two first movable and two first fixing sleeves, a first and a second weight, two first and two second linkages, a restoration element, a first sensing unit for sensing centrifugal force, and two fixers. The two first movable sleeves are disposed through the first rotating shaft. The two first linkages are connected to the first weight and the two first movable sleeves. The restoration element having a fixing block and two first damping elements is disposed at the first rotating shaft. The two second linkages are connected to the second weight and the two first movable sleeves. The two first fixing sleeves are fixed at the first rotating shaft and respectively located between each of the two first movable sleeves and one of the two fixers.