Abstract: A video processing method and a video processing system are provided. The video processing method is applied to a rotary video capturing device. The video processing method includes the following steps. First, at least one video frame corresponding to at least one piece of field-of-view (FOV) information is received, and a plurality of first coordinates corresponding to a plurality of first pixels of the at least one video frame is obtained. Coordinate transformation procedure is performed on the first coordinates according to the at least one piece of FOV information to obtain a plurality of second coordinates. A plurality of second pixels in a panoramic background image corresponding to the second coordinates is obtained. The first pixels are compared with the second pixels to determine whether the first pixels belong to a foreground or a background, to output comparison results.

Abstract: An information display method includes steps of capturing an image of a place; attaching a reference information to the image, wherein the reference information indicates an object information related to a target object in the place; and displaying the image with the reference information.

Abstract: A photographing device comprises an assembling component, an image capturing component, a first annular fastener, a first stopping part and a second annular fastener. The assembling component comprises a hollow case, a protruding part, a first fastening part and a second fastening part. The hollow case has an inner surface, a first end and a second end. The protruding part is located at inner surface to form a supporting space together. The first fastening part and second fastening part are located at first end and second end, respectively. The image capturing component is located in supporting space. The first annular fastener has a third fastening part fastened to first fastening part and an annular abutting part. The first stopping part is connected to first annular fastener or first end. The second annular fastener has a fourth fastening part fastened to second fastening part and a second stopping part.

Abstract: A dynamical focus adjustment method is applied to a dynamical focus adjustment system. The dynamical focus adjustment method includes setting a focus area within a display window on a screen, making a first video by a first focus value when an object passes the focus area, displaying the first video on a play window of the screen, and determining whether a focus adjusting function is actuated according to an image of the first video on the play window.

Abstract: A photographing device comprises an assembling component, an image capturing component, a first annular fastener, a first stopping part and a second annular fastener. The assembling component comprises a hollow case, a protruding part, a first fastening part and a second fastening part. The hollow case has an inner surface, a first end and a second end. The protruding part is located at inner surface to form a supporting space together. The first fastening part and second fastening part are located at first end and second end, respectively. The image capturing component is located in supporting space. The first annular fastener has a third fastening part fastened to first fastening part and an annular abutting part. The first stopping part is connected to first annular fastener or first end. The second annular fastener has a fourth fastening part fastened to second fastening part and a second stopping part.

Abstract: A video processing method and a video processing system are provided. The video processing method is applied to a rotary video capturing device. The video processing method includes the following steps. First, at least one video frame corresponding to at least one piece of field-of-view (FOV) information is received, and a plurality of first coordinates corresponding to a plurality of first pixels of the at least one video frame is obtained. Coordinate transformation procedure is performed on the first coordinates according to the at least one piece of FOV information to obtain a plurality of second coordinates. A plurality of second pixels in a panoramic background image corresponding to the second coordinates is obtained. The first pixels are compared with the second pixels to determine whether the first pixels belong to a foreground or a background, to output comparison results.