Abstract: Image processing devices and methods thereof use different color conversion data of an image obtained in a black-and-white mode under a low illuminance condition than that of an image obtained in a color mode.

Abstract: A lens bracket including: a fixed portion on which a lens assembly is provided; a moving portion connected to the fixed portion and moving along a rail; a coupling protrusion provided on the moving portion and selectively coupled to an inner surface of the rail; and a hooking portion provided on the moving portion, the hooking portion facing the coupling protrusion, and selectively contacting a rail protrusion of the rail.

Abstract: Provided is a method of managing keys in a security system of a multicast environment. The key managing method according to the embodiments of the present disclosure enables key management that a key renewal regarding a receiver joining or leaving a group does not affect all groups.

Abstract: Provided are an image processing device and an image enhancing method. The image enhancement method for the image processing device includes: calculating a first minimum value, a first maximum value, and a first average value of a luminance of a region based on a pixel in an image; calculating a first gain with respect to a pixel having a pixel value between the first minimum value and the first average value, and a second gain with respect to a pixel having a pixel value between the first average value and the first maximum value; and calculating a first correction value by correcting the pixel value of the pixel by using the first gain or the second gain according to a result of comparing the pixel value of the pixel with the first average value.

Abstract: A method of determining a quantization parameter includes determining an adjustment range of a quantization parameter correction value based on a size of a motion area of an input image, calculating an average bitrate value of the input image, and adjusting the quantization parameter correction value by decreasing the quantization parameter correction value within the adjustment range in response to determining that the average bitrate value is greater than an upper limit value, and by increasing the quantization parameter correction value within the adjustment range in response to determining that the average bitrate value is equal to or less than a lower limit value.

Abstract: A camera, including a lens assembly and a plurality of infrared ray (IR) light sources arranged around the lens assembly, has a photographing target area classified as a main irradiation area and an external irradiation area. The main irradiation area is set not to exceed a half-power angle of the IR light sources. The external irradiation area is set to exceed the half-power angle of the IR light sources. A reflector is installed corresponding to the IR light sources. IRs reflected by the reflector reach the external irradiation area.

Abstract: A method of allocating resources of a video recorder includes: setting a first channel from among a plurality of channels of the video recorder as a temporary registration channel; broadcasting a notification of temporary registration availability to one or more cameras from among a plurality of cameras; receiving a first temporary registration request in response to the notification of temporary registration availability from a first camera, from among the one or more cameras; allocating the first channel to the first camera in response to the first temporary registration request; and terminating the allocation of the first channel to the first camera, based on recording of video information of the first camera in the video recorder through the first channel.

Abstract: A zoom lens system includes: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; a fourth lens group having a positive refractive power; a fifth lens group having a positive refractive power; and a sixth lens group having a positive refractive power, wherein the first to sixth lens groups are sequentially arranged along an optical axis from an object side to an image plane side, and zooming is performed by moving at least one of the second lens group, the fourth lens group and the fifth lens group along the optical axis. A distance between a focal point of light having a first wavelength and a focal point of light having a second wavelength is about 50 ?m or less at a wide-angle position and a telephoto position. The first wavelength corresponds to green light, the second wavelength corresponds to near infrared (NIR) light.

Abstract: Provided is a method of controlling a monitoring camera. In the method, a live-view video is displayed on a first region of a display panel, and a plurality of angle-range icons corresponding to panning angle-ranges or tilting angle-ranges is displayed on a second region of the display panel. When one of the plurality of angle-range icons is selected, a control signal for executing panning or tilting at a representative angle of a panning angle-range or tilting angle-range of the selected angle-range icon is transmitted to the monitoring camera.

Abstract: Provided is a surveillance camera. The surveillance camera includes a main body casing; a front cover that forms a camera housing by being combined with the main body casing; a first protrusion unit that protrudes frontward of the front cover from a front surface of the front cover; a second protrusion unit that is formed on an outer edge of the first protrusion unit by being separated from the first protrusion unit; and a lens mounting unit that combines with the front cover, wherein the lens mounting unit comprises a first guide unit that protrudes toward the front cover and contacts the first protrusion unit and a second guide unit that contacts the second protrusion unit. Accordingly, tilting of the lens mounting unit is effectively prevented.

Abstract: Provided is a monitoring apparatus including a communication unit which receives streaming data and metadata of a video from each of a plurality of cameras installed indoors when the cameras obtain videos by capturing specific areas, respectively; a metadata analysis unit which analyzes the received metadata and extracts information about an event that occurred; a video selection unit which selects a video containing an area in which the event occurred from the videos based on the extracted information about the event; and a screen unit which receives the selected video from the video selection unit and immediately displays the received video when the monitoring apparatus is operated.

Abstract: Provided is an image processing apparatus which generates a wide dynamic range (WDR) image using an image sensor. The image processing apparatus includes: an image sensor which outputs image data having a plurality of image channels; a mode setting unit which changes a photographing mode from a first mode in which a first number of sub-images are synthesized to a second mode in which a second number of sub-images are synthesized, based on luminance of the output image data; a register setting unit which changes a register value of the image sensor according to the second mode; and an image signal processor (ISP) which generates a result image by synthesizing the second number of sub-images from the image data according to the changed register value, wherein the second number of sub-images have different exposure times.

Abstract: Provided are an event storage device, an event search device, and an event alarm device for an event occurring in a surveillance area. The event storage device includes a processor and a memory and its operation is controlled by the processor. The processor is configured to receive images captured in a surveillance area, detect an event generated in the surveillance area, storing, in the memory, an image related to the event, among the captured images, and storing an event level of the detected event along with the stored image.

Abstract: A surveillance method performed by a surveillance apparatus is provided. The surveillance method includes determining whether an event has occurred based on detection data; in response to determining that the event has occurred based on the detection data, transmitting a first wireless communication to an outside of the surveillance apparatus by using a second communicator at a second frequency and switching a power-off state of a first communicator to a power-on state; and transmitting a second wireless communication, corresponding to the event, to the outside by using the first communicator at a first frequency higher than the second frequency.

Abstract: An image processing apparatus includes an image processor and an encoder. The image processor enhances an edge of an input image, removes noise from the input image, synthesizes the edge-enhanced image and the noise-removed image, and removes a high frequency from the synthesized image. The encoder pre-encodes a downsized synthesized image, obtains a pre-bit rate of the pre-encoded image, sets a quantization parameter value based on a reference bit rate and the pre-bit rate, and compresses the high-frequency removed image based on the quantization parameter value.

Abstract: An image providing apparatus includes an internal communication interface configured to receive image data and camera setting information from a plurality of camera modules included in a network camera housing, and transmit a control signal to the plurality of camera modules; a processor configured to generate the control signal to control an operation of the plurality of camera modules, control a power supply to each of the plurality of camera modules, and generate combined image data by combining the image data obtained from the plurality of camera modules; and an external communication interface configured to transmit the combined image data to a client terminal via an Internet network.