Abstract: Disclosed is a technology related to a video surveillance system using a camera capable of a pan-tilt-zoom operation. The video surveillance system includes a pan-tilt-zoom camera for photographing a surveillance region, and a display device for outputting an image of the pan-tilt-zoom camera. The pan-tilt-zoom camera provides a fisheye image representing an entire surveillance region onto a first region of the display device, calculates driving parameters of the pan-tilt-zoom camera on the basis of location information of a portion selected from the fisheye image, moves the pan-tilt-zoom camera to a location of the selected portion according to the driving parameters, and provides a monitoring image of the selected portion photographed by the pan-tilt-zoom camera onto a second region of the display device. According to the present invention, the pan-tilt-zoom camera is allowed to be intuitively and rapidly controlled using the fisheye image and to rapidly generate a fisheye image.

Abstract: Provided is a video playback system based on approval of a playback approver. A decryption key that can decrypt an encrypted and stored recorded video is generated only when video playback is approved by a playback approver using an appointed playback approval method and transmitted to the video recording device so that it is possible to prevent leakage of the recorded video with sensitive personal information.

Abstract: Provided is a video search interfacing apparatus for efficiently searching for a plurality of recorded video channels by generating a search history by selecting cameras in a time series manner according to a traffic line of an object of interest on a map on which physical positions of a plurality or cameras are visually arranged, thereby searching for a plurality of recorded video channels more intuitively.

Abstract: Provided is a video playback system based on approval of a playback approver. A decryption key that can decrypt an encrypted and stored recorded video is generated only when video playback is approved by a playback approver using an appointed playback approval method and transmitted to the video recording device so that it is possible to prevent leakage of the recorded video with sensitive personal information.

Abstract: Disclosed is a technique for a railway disaster monitoring system for monitoring a foreign matter on a railway, which includes a camera and an image processing unit that receives a railway image captured by the camera. The image processing unit includes a segmented image acquisition unit that obtains a plurality of segmented images including a rail from the railway image received from the camera and scales the segmented images to obtain segmented image blocks of a predetermined size, and a segmented image determination unit which includes deep neural network (DNN) discriminators trained with deep learning neural networks and inputs the segmented image blocks to the DNN discriminators to determine whether the railway is in a normal state in which there is no foreign matter on the railway except a train passing by. Using the segmented images, a foreign matter on a railway can be rapidly and easily determined using a deep learning neural network even with a small number of resources.

Abstract: A video security system with improved network response speed using pre-authentication information, which is capable of improving a network response speed by simplifying handshaking for securely exchanging authentication information and an encryption key in a process of starting communication between a client terminal and a server using pre-authentication information that is valid only for the client terminal, is provided.

Abstract: Provided is a video search interfacing apparatus for efficiently searching for a plurality of recorded video channels by generating a search history by selecting cameras in a time series manner according to a traffic line of an object of interest on a map on which physical positions of a plurality or cameras are visually arranged, thereby searching for a plurality of recorded video channels more intuitively.

Abstract: Disclosed is an image analysis apparatus for analyzing a camera image. The image analysis apparatus for analyzing a camera image segments an input fisheye camera image into segmented images with a preset size field of view and superimposes the segmented images so that some regions overlap, performs dewarping on each of the segmented images, then combines the segmented images on which the dewarping is performed using a preset combination method, generates an analysis image, and detects objects included in the analysis image. In this case, the image analysis apparatus removes a result recognized as a duplicate from a detection result of the object by post-processing.

Abstract: Provided is a monitoring system and a method of controlling a panning-tilt zoom (PTZ) camera by using a fisheye camera when the fisheye camera and the PTZ camera are adjacently installed. The method includes selecting a region of interest (ROI) in an entire surveillance-target area image captured by the fisheye camera and adjusting a panning angle P and a tilting angle T of the PTZ camera to acquire an accurate image of the selected ROI.

Abstract: An IP camera security system allowing secure encryption information to be transmitted is provided that is implemented such that an encryption key and an encryption method are managed not by an IP camera and a client terminal vulnerable to security but by an image storage device having robust security so as to further secure the network segment security.

Abstract: Provided is a monitoring system and a method of controlling a panning-tilt zoom (PTZ) camera by using a fisheye camera when the fisheye camera and the PTZ camera are adjacently installed. The method includes selecting a region of interest (ROI) in an entire surveillance-target area image captured by the fisheye camera and adjusting a panning angle P and a tilting angle T of the PTZ camera to acquire an accurate image of the selected ROI.

Abstract: A parking guidance camera apparatus is provided. An elastic pad of a pan tilt gimbal is in close contact with or separated from a lower surface of a pan tilt camera module in a main body housing to fix or release the tilt camera module. An outer portion of an operation lever is hinge-coupled to a holder to be vertically tilted in a state in which the elastic pad is seated on an upper surface of the outer portion of the operation lever in the main body housing. An upper portion of a fixing knob is screw-coupled to an inner portion of the operation lever to vertically tilt the operation lever according to a rotating direction thereof so that the elastic pad is in close contact with or separated from the pan tilt camera module.

Abstract: An IP camera security system allowing secure encryption information to be transmitted is provided that is implemented such that an encryption key and an encryption method are managed not by an IP camera and a client terminal vulnerable to security but by an image storage device having robust security so as to further secure the network segment security.

Abstract: A fish eye camera is provided. A main circuit board is fixed to an inside of a base housing. A middle housing is formed to cover both of the main circuit board and a camera module and fixed to the base housing in a state in which a fish eye lens of the camera module is drawn from the middle housing. A bracket includes a bracket body, which is insertion-coupled to a plurality of light emitting diode (LED) substrates and elastically supports the plurality of LED substrates in a state in which the plurality of LED substrates are arranged around an outer side of the middle housing, and metal bodies which are inserted into the bracket body to be in contact with the LED substrates. A cover housing is formed to cover both of the bracket and the middle housing and fixed to the base housing.

Abstract: A fish eye camera is provided. A main circuit board is fixed to an inside of a base housing. A middle housing is formed to cover both of the main circuit board and a camera module and fixed to the base housing in a state in which a fish eye lens of the camera module is drawn from the middle housing. A bracket includes a bracket body, which is insertion-coupled to a plurality of light emitting diode (LED) substrates and elastically supports the plurality of LED substrates in a state in which the plurality of LED substrates are arranged around an outer side of the middle housing, and metal bodies which are inserted into the bracket body to be in contact with the LED substrates. A cover housing is formed to cover both of the bracket and the middle housing and fixed to the base housing.

Abstract: A parking guidance camera apparatus is provided. An elastic pad of a pan tilt gimbal is in close contact with or separated from a lower surface of a pan tilt camera module in a main body housing to fix or release the tilt camera module. An outer portion of an operation lever is hinge-coupled to a holder to be vertically tilted in a state in which the elastic pad is seated on an upper surface of the outer portion of the operation lever in the main body housing. An upper portion of a fixing knob is screw-coupled to an inner portion of the operation lever to vertically tilt the operation lever according to a rotating direction thereof so that the elastic pad is in close contact with or separated from the pan tilt camera module.

Abstract: A video recording apparatus with a pre-event circulation recording function is provided. A limitation on memory capacity may be removed by recording a pre-event video directly on a nonvolatile storage medium, such as a hard disk drive (HDD), without using a buffer according to a circulation recording method during pre-event recording performed to record videos before and after an event occurs.

Abstract: A network video recorder having a multi-stream recording function which is robust to event stream delay is provided. An event stream is recorded by adjusting a time-lapse recording end time and an event recording time to prevent omission of a video, caused by transmission delay of a high-quality event stream during the recording of the event stream.

Abstract: A network video recorder having a multi-stream recording function which is robust to event stream delay is provided. An event stream is recorded by adjusting a time-lapse recording end time and an event recording time to prevent omission of a video, caused by transmission delay of a high-quality event stream during the recording of the event stream.

Abstract: Provided is a camera pan-tilt-zoom (PTZ) control technology in which a PTZ control signal input by a user is output as a graphic UI and the user inputs the PTZ control signal while directly monitoring the graphic UI. A camera PTZ control apparatus includes a UI visualization unit configured to generate a reference mark as a reference for operating the monitored area and generate a graphic output signal which represents a current position mark associated with a current position indicated by the operation unit; a PTZ processor configured to calculate and output a PTZ driving value of a shooting camera based on relative positions of the reference mark and the current position mark; and a camera driving unit configured to output a driving signal for driving a PTZ driving unit of the shooting camera through a communication unit according to the calculated PTZ driving value.