Abstract: A scene analysis method is applied to a visual navigation device. The scene analysis method includes the steps of capturing scene information at different times based upon the field of view of an image capturing device; analyzing different targets existing in the captured scene information; comparing each one of the targets captured at different times to classify the target, wherein the target that is in a specific region in the field of view and moving toward the image capturing device is classified as a type A target; otherwise the target is classified as a type B target. When the visual navigation is installed on a vehicle, a protection procedure such as a procedure of avoiding an obstacle is initiated when a type A target is detected, so that the vehicle is automatically prevented from potential accidents.

Abstract: An industrial visual stethoscope system and a detecting method are provided. The system has a base, a workpiece support, a single-color lighting device, a camera module, a rotating device, and an analyzing device. When the single-color light irradiates the workpiece, if the single-color light irradiates into the crack which is relatively deep and narrow, the single-color light is rarely to be reflected out of the crack. But if the single-color light irradiates into the scar, the single-color light is reflected out of the scar due to the specular reflection. During the relative rotation, when the reflected light enters the camera module in parallel, the energy of the light is concentrated, causing overexposure and forming obvious white light. Thus, the analyzing device can identify the recess is a scar formed by hit rather than a crack formed by heat.

Abstract: A scene analysis method is applied to a visual navigation device. The scene analysis method includes the steps of capturing scene information at different times based upon the field of view of an image capturing device; analyzing different targets existing in the captured scene information; comparing each one of the targets captured at different times to classify the target, wherein the target that is in a specific region in the field of view and moving toward the image capturing device is classified as a type A target; otherwise the target is classified as a type B target. When the visual navigation is installed on a vehicle, a protection procedure such as a procedure of avoiding an obstacle is initiated when a type A target is detected, so that the vehicle is automatically prevented from potential accidents.

Abstract: A scene analyzing method includes the steps of: receiving captured scene information; analyzing different targets in the scene information to obtain characteristic information of each of the targets; and sending the obtained characteristic information to an external device or correlating the characteristic information to the scene information and storing it to a storage device in order to retrieve the scene information corresponding to the characteristic information stored in the storage device. The scene information corresponding to the characteristic information is searchable to extract a specific target when the scene analyzing method is used for monitoring applications. This reduces human costs and increases efficiency in monitoring information.

Abstract: An industrial visual stethoscope system and a detecting method are provided. The system has a base, a workpiece support, a single-color lighting device, a camera module, a rotating device, and an analyzing device. When the single-color light irradiates the workpiece, if the single-color light irradiates into the crack which is relatively deep and narrow, the single-color light is rarely to be reflected out of the crack. But if the single-color light irradiates into the scar, the single-color light is reflected out of the scar due to the specular reflection. During the relative rotation, when the reflected light enters the camera module in parallel, the energy of the light is concentrated, causing overexposure and forming obvious white light. Thus, the analyzing device can identify the recess is a scar formed by hit rather than a crack formed by heat.

Abstract: A crawling device is used for surrounding a cylinder and crawling along the extension direction of the mentioned cylinder. The kind of crawling device may include at least two-nodes crawling modules, a telescopic mechanism, and a control circuit. The telescopic mechanism connects with two-nodes crawling modules, and the crawling modules have an elastic mechanism and a drawstring respectively. In creeping movement, the at least two-nodes crawling modules are set in turn that one crawling module as a fixed section and the other crawling module as a mobile section. When the crawling module is set as a fixed section, the crawling module adjusts the drawstring through the elastic mechanism to make the fixed section close to the cylinder. Producing friction by keeping close to the cylinder let the fixed section maintain the fixed state relatively close to the cylinder.