Abstract: A video conversion device includes a video signal input port, an audio signal input port, a signal processing module and a signal output module. The video signal input port and a video capture device is connected via a connecting assembly having a plug and a socket for receiving an external analog video signal from the video capture device. The audio signal input port receives an analog audio signal. The signal processing module connects to the video signal input port and the audio signal input port to receive the analog video signal and the analog audio signal. The signal processing module respectively converts the external analog video signal and the analog audio signal to a digital video signal and a digital audio signal. The signal output module connects to the signal processing module to output the digital video signal and the digital audio signal.

Abstract: A light source driving device includes a light source unit, a driving unit, a voltage converting unit, a detecting unit, and a feed-back control unit. The driving unit is used to receive an input signal, and convert the input signal to a driving signal for output according to an enable signal and a feed-back signal. The voltage converting unit is used to convert the driving signal to a driving voltage, so as to output the driving voltage to a first end of the light source unit. The detecting unit is coupled to a second end of the light source unit, and used to detect an output current of the light source unit, so as to generate a detecting voltage. The feed-back control unit generates the feed-back signal according to the detecting voltage and a pulse width modulation signal.

Abstract: A case structure includes a main body, a cover and a seal. The main body has an accommodating space and an inner wall surface forming the accommodating space. The accommodating space has an opening. The main body includes at least two first fastening portions. The cover is assembled to the main body in a detachable way. The cover has a connection position and a lock position relative to the main body. The cover has an annular side wall surface and at least two second fastening portions. The seal is disposed around the annular side wall surface of the cover. One of each first fastening portion and each second fastening portion has a release section and a fastening section connected to each other. The other of each first fastening portion and each second fastening portion has a support arm and a block extended from the support arm.

Abstract: An image processor and a fisheye image display method thereof are provided, where the fisheye image display method performs the following steps. A fisheye image and part images are received, and each part image and the fisheye image have a relation therebetween. A frame layout with at least one cell is read. The fisheye image or part image is inserted in the cell. The frame layout is set as an output image. A modification command is received. A modification procedure is performed to modify the output image according to the modification command. Each part image and the fisheye image maintains the relation after the output image is modified.

Abstract: An exposure adjustment method for night-vision camera includes the following steps. A first image and a second image are shot with an infrared light source of different intensity; the shot first image and second image are divided into a plurality of image blocks, in which positions of the image blocks in the first image are respectively corresponding to those in the second image; a light reflectivity of the image blocks of the first image is compared with a light reflectivity of the image blocks of the second image, and object distances of image objects are determined; the image object having greater object distance obtains a lower light measuring weight, and the image object having smaller object distance obtains a higher light measuring weight; and an exposure parameter of image images is adjusted according to the image weights of the two images and light measuring weights of the blocks.

Abstract: A de-warping processing method for digital images includes the following steps. A first image window is segmented into a plurality of first blocks. A second image window is segmented into a plurality of second blocks according to locations and an amount of the first blocks. A coordinate transformation parameter is calculated by a group of first vertex coordinate values of the first block and a group of second vertex coordinate values of the corresponding second block. Each of coordinate values of the first block is transformed into an estimated coordinate value of the corresponding second block according to the coordinate transformation parameter. A pixel content value is obtained from the second image window according to each of the estimated coordinate values, and is written into a pixel with the corresponding coordinate value in the first block. All the first blocks are processed for outputting a first image.

Abstract: An image recording system, an image recorder and a data accessing method are provided. Some of memory blocks of a flash memory are set as first blocks, and the other memory blocks are set as second blocks. When a target image file received from a capturing unit of an image reorder is being written into the first blocks, a control unit of the flash memory detects whether the first block into which a processing unit of the image recorder tries to write a piece of data of the target image file is faulty. When the first block is faulty, the control unit selects normal one of the second blocks and then writes the piece of the data of the target image file into the selected second block instead of the first block.

Abstract: The disclosure relates to a linking-up photographing system and a control method of linked-up cameras thereof including the following steps. A first image is acquired via a first camera. A second image is acquired via a second camera and presents a field of view (FOV) which partially overlaps a FOV of the first image at least. A control look-up table is established according to the first image and the second image. A designating command specifying a region of interest (ROI) in the first image is received. A FOV of the second camera is adjusted according to the ROI and the control look-up table, and then the second camera photographs a view specified by the ROI, so as to obtain a third image. In this way, the second camera can link up and cooperate with the first camera easily.

Abstract: A video surveillance component includes a base and a camera. The camera includes a case and a camera lens module. The case is detachably assembled to the base. The camera lens module is installed on the case. Moreover, a video surveillance assembly includes two video surveillance components. Each of the two video surveillance components includes a camera and a base having a back plate. The camera includes a case and a camera lens module installed on the case. The two back plates of the two bases are attached to each other, so as to expand the field of view of the video surveillance assembly.

Abstract: A setting method for connecting to wireless network access points, and an electronic device are applied to connect a network video surveillance device such as a network camera, a network video server or a network video recorder to wireless network access points. A first electronic device is set to operate in an access point mode. A second electronic device is connected to the first electronic device wirelessly, and setting information of a target access point is sent to the first electronic device by the second electronic device. After the first electronic device obtains the setting information, the first electronic device is switched to operate in a client mode instead of the access point mode. The first electronic device is connected to the target access point according to the setting information.

Abstract: A photographic device includes a base, a camera lens module, a circuit component and multiple light-emitting components. The base has an installation surface. The camera lens module is movably installed on the installation surface of the base. The circuit component is installed on the installation surface of the base. The light-emitting components are electronically disposed on the circuit component. At least two of the light emitting components have different optical axis directions.

Abstract: A case structure includes a main body, a cover and a seal. The main body has an accommodating space and an inner wall surface forming the accommodating space. The accommodating space has an opening. The main body includes at least two first fastening portions. The cover is assembled to the main body in a detachable way. The cover has a connection position and a lock position relative to the main body. The cover has an annular side wall surface and at least two second fastening portions. The seal is disposed around the annular side wall surface of the cover. One of each first fastening portion and each second fastening portion has a release section and a fastening section connected to each other. The other of each first fastening portion and each second fastening portion has a support arm and a block extended from the support arm.

Abstract: A video setting method is applicable to a video player. The video setting method includes the following steps: receiving a plurality of videos at the same time; acquiring identification information of each of the videos; according to a playing mode, deciding a playing type of the video player; generating at least one playing frame, the at least one playing frame including at least one playing window, and according to the identification information, filling the videos into the at least one playing window in the at least one playing frame; and according to the playing type, playing the videos in the at least one playing window on the video player.

Abstract: A photographic device includes a casing, a photographic body, an auxiliary light source and an adjusting assembly. The casing includes an opening. The photographic body, disposed in the casing, and the photographic body, corresponds to the opening. The photographic body is adapted for image capturing. The auxiliary light source, disposed between the casing and the photographic body, is adapted for emitting light outside through the opening. The adjusting assembly, disposed in the casing, is connected to the auxiliary light source. The adjusting assembly is adapted for driving the auxiliary light source to move relative to the opening.

Abstract: A photographic device includes a body, and at least an optical assembly and multiple auxiliary light sources surrounding the optical assembly are disposed in the body. A front cover is disposed on a front end of the body, and a protecting mirror is disposed on the front cover. Light emitted by the auxiliary light sources passes through the protecting mirror and illuminates a photographic area. A light-blocking film is disposed on the protecting mirror corresponding to the optical assembly, so as to prevent the light emitted by the auxiliary light sources from entering the optical assembly after reflected by the protecting mirror.

Abstract: An adjusting mechanism, applicable for a video device, includes a fixing bracket, an adjusting component, a linking component and a rotating bracket. The adjusting component is disposed on a side of the fixing bracket. The linking component is engaged with the adjusting component. The rotating bracket is connected to the linking component and is pivoted to the fixing bracket. When the adjusting component is rotated by an external force, the linking component drives the rotating bracket to pivot relative to the fixing bracket.

Abstract: A server set includes a first video server, a second video server and a joint member. A first surface of the first video server has a first fastening groove, and the first fastening groove has a first chute portion and a first intermediate portion. The second video server has a second surface, in which the second surface has a second fastening groove, and the second fastening groove has a second chute portion and a second intermediate portion. A main body portion of the joint member corresponds to and is accommodated in the first intermediate portion and the second intermediate portion. A first hook portion and a second hook portion are accommodated in and hooked with the first chute portion and the second chute portion respectively, so that the first video server is connected with the second video server through the joint member.

Abstract: A light source driving device includes a light source unit, a driving unit, a voltage converting unit, a detecting unit, and a feed-back control unit. The driving unit is used to receive an input signal, and convert the input signal to a driving signal for output according to an enable signal and a feed-back signal. The voltage converting unit is used to convert the driving signal to a driving voltage, so as to output the driving voltage to a first end of the light source unit. The detecting unit is coupled to a second end of the light source unit, and used to detect an output current of the light source unit, so as to generate a detecting voltage. The feed-back control unit generates the feed-back signal according to the detecting voltage and a pulse width modulation signal.

Abstract: An exposure adjustment method for night-vision camera includes the following steps. A first image and a second image are shot with an infrared light source of different intensity; the shot first image and second image are divided into a plurality of image blocks, in which positions of the image blocks in the first image are respectively corresponding to those in the second image; a light reflectivity of the image blocks of the first image is compared with a light reflectivity of the image blocks of the second image, and object distances of image objects are determined; the image object having greater object distance obtains a lower light measuring weight, and the image object having smaller object distance obtains a higher light measuring weight; and an exposure parameter of image images is adjusted according to the image weights of the two images and light measuring weights of the blocks.