Abstract: Provided are a color adjustment method, a color adjustment device, an electronic device, and a computer-readable storage medium. The method includes: determining an adjustment area corresponding to an edge pixel, where the adjustment area includes multiple pixels; acquiring color information of the edge pixel and color information of each similar pixel in the adjustment area, where a pixel type of the similar pixel is consistent with a pixel type of the edge pixel; and adjusting a parameter value of the edge pixel according to the color information of the each similar pixel, the color information of the edge pixel, and a brightness parameter of the edge pixel.

Abstract: Provided are a video encoding method and apparatus, an electronic device, and a computer-readable storage medium. The method includes: acquiring status information of each macroblock in an image to be encoded; dividing the image to be encoded into a plurality of status regions according to the status information of each macroblock; determining a quantizer parameter adjustment value of each of the plurality of status regions in the image to be encoded according to a preset quantizer parameter value table; acquiring a quantizer parameter encoding value of each macroblock in a reference frame image of the image to be encoded; determining a quantizer parameter encoding value of each macroblock in the image to be encoded; and compressing and encoding the image to be encoded.

Abstract: Provided are a device cross-region access method and apparatus, an electronic device, and a storage medium. The method includes: receiving a cross-region access request from a target device and determining IP address information in the cross-region access request; determining information of a cross-region proxy server matching the target device according to the IP address information, where the cross-region proxy server is preset in a proxy region different from a target region where the target server is located, and the cross-region proxy server and the target server are in a distributed deployment; and transmitting the information of the cross-region proxy server to the target device to enable the target device to establish a connection to the cross-region proxy server.

Abstract: A power over Ethernet apparatus is provided. The power over Ethernet apparatus includes a power sourcing equipment (PSE) controller, a main chip and a redundant controller. The PSE controller is for power allocation among ports of the power over Ethernet apparatus. The main chip is coupled to the PSE controller through a first branch and for controlling the PSE controller. The redundant controller is coupled with the main chip, and coupled to the PSE controller through a second branch to control the PSE controller when the main chip stops sending a heart-beat signal. Methods of power over Ethernet are also provided.

Abstract: Disclosed are a method and device for switching between operation modes. The method includes: reading a current operation mode of a surveillance device, and recording an exposure parameter of the current operation mode; and when a switch between operation modes is to be performed, setting a target exposure value of a target operation mode to which the current operation mode is to be switched to, and calculating an exposure parameter of the target operation mode in combination with the exposure parameter of the current operation mode. The device includes: a recording module; a detection module; and a switching module. The method and device of the disclosure directly estimate the exposure parameter of the target operation mode according to the exposure parameter of the current operation mode without gradually adjusting the exposure parameter by metering and exposure calculation, thereby significantly increasing a switching speed.

Abstract: A device for detecting posture change of a operation part in a camera and a method for restoring posture are disclosed. The device may include a photo interrupter and a photoelectric baffle structure including a plurality of baffle pieces fixed on a base. The baffle pieces may include a first baffle piece and remaining second baffle pieces of a length specification different from that of the first baffle piece, and there is a gap between two adjacent baffle pieces. An output signal from the photo interrupter changes according to the aligning relationship between the photo interrupter and the baffle pieces. One of the photoelectric baffle structure and the photo interrupter may follow the motion of an operation part of the camera while the other one remains unmoved, so that a posture change of the operation part may be detected based on the output signal from the photo interrupter.

Abstract: According to examples of the present disclosure, a method and apparatus for automatic white balance may be provided. A white region for performing automatic white balance may be obtained by a front end device of a video monitoring system. At least one cluster may be generated by clustering statistical points within the white region of a to-be-detected image by the front end device. The cluster may be determined as a target cluster and statistical points within the target cluster may be determined as white points by the front end device when the number of statistical points within the cluster is greater than a preset threshold. And a white balance gain of the to-be-detected image may be determined by the front end device based on the target cluster.

Abstract: The present disclosure provides a reversible powering device for an electronic equipment including a first power input port and a second power input port. Said reversible powering device including: a power input determining module configured to determine whether the first power input port or the second power input port of the electronic equipment has a power input respectively, and send a control signal to a switch controlling module if it is determined that the first power input port has a power input and the second power input port has no power input; and the switch controlling module configured to control a switch device according to said control signal such that the power input into the first power input port is output from the second power input port in a reverse direction to power another electronic equipment.

Abstract: A planning device and method of data storage are disclosed. The planning device includes a format-processing sub-logic and a space-allocation sub-logic. The format-processing sub-logic is for creating a formatting information area, for creating an index area for storing index data, and for creating a data area on a designated physical storage disk, and wherein the formatting information defines the index area and the data area. The space-allocation sub-logic is for allocating at least one data block to an upper-layer application in accordance with a size of a document needed to be stored. By adopting the formatting process, users may create the index area and data area on different physical storage disks so as to separate the index area and the data area. In this way, the users may store the information regarding the index area on different storage disks.

Abstract: A video camera includes a first temperature sensor, a control logic circuit, a main system, a heating module, a fan and a power supply. After the power supply supplies power to the video camera, the first temperature sensor comes to be active, when the temperature sensed by the first temperature sensor is less than T1, the first temperature sensor outputs a control signal to the control logic circuit, which activates the heating module and the fan and prevents the power supply from supplying to the main system; and when the temperature sensed by the first temperature sensor is greater than T1, the first temperature sensor outputs a control signal to the control logic circuit which enables the power supply to supply to the main system and inactivates the heating module and the fan, and therefore, a normal activation and stable operation of the video camera at low temperatures are ensured.

Abstract: The present invention provides a method for a surveillance node to pass through a network isolation device in an IP surveillance system. The method comprises steps of using a first IP address of a surveillance node per se to initiate a tunnel connection request towards a tunnel server, so as to establish a tunnel connection with the tunnel server. After establishing the tunnel connection, the step is obtaining a second IP address distributed by the tunnel server from the tunnel server, and decapsulating a tunnel packet received from the tunnel server to obtain an inner-layer IP packet indicating the content is surveillance signaling. The method further comprises the step of processing the surveillance signaling, encapsulating the surveillance signaling generated by the surveillance node into the inner-layer IP packet, and then encapsulating the inner-layer IP packet into the tunnel packet and sending the same to the tunnel server.

Abstract: Provided is a spherical camera, including a first shell, a second shell, and a first waterproof ring installed at the joint of the first shell and the second shell; the first shell comprises a first rotating shaft; the second shell comprises a second rotating shaft; the first rotating shaft and the second rotating shaft fit with an support bracket for installing the spherical camera, to allow the spherical camera to rotate to different areas to acquire images; the first waterproof ring is a planar closed-loop waterproof ring; the combination surface between the first shell and the second shell is a plane, and the combination plane passes through the sphere center of the spherical camera.

Abstract: Provided is a spherical camera, including a first shell, a second shell, and a first waterproof ring installed at the joint of the first shell and the second shell; the first shell comprises a first rotating shaft; the second shell comprises a second rotating shaft; the first rotating shaft and the second rotating shaft fit with an support bracket for installing the spherical camera, to allow the spherical camera to rotate to different areas to acquire images; the first waterproof ring is a planar closed-loop waterproof ring; the combination surface between the first shell and the second shell is a plane, and the combination plane passes through the sphere center of the spherical camera.

Abstract: A video camera includes a first temperature sensor, a control logic circuit, a main system, a heating module, a fan and a power supply. After the power supply supplies power to the video camera, the first temperature sensor comes to be active, when the temperature sensed by the first temperature sensor is less than T1, the first temperature sensor outputs a control signal to the control logic circuit, which activates the heating module and the fan and prevents the power supply from supplying to the main system; and when the temperature sensed by the first temperature sensor is greater than T1, the first temperature sensor outputs a control signal to the control logic circuit which enables the power supply to supply to the main system and inactivates the heating module and the fan, and therefore, a normal activation and stable operation of the video camera at low temperatures are ensured.