Abstract: The present disclosure is related to systems and methods for disaster control. The method includes obtaining an alert message including information associated with a disaster in a target area. The method includes sending a first shooting instruction to at least one camera device to capture first image data associated with the target area. The method includes obtaining a plan for controlling the disaster from at least one processor. The first image data may be transmitted to the at least one processor through a communication network. The plan may be determined based on the information associated with the disaster and the first image data.

Abstract: The present disclosure relates to an apparatus and method for identifying light source. The method includes receiving an infrared image of an environment captured by an imaging apparatus in a first configuration. The method also includes identifying, based on the infrared image, that a light source exists in the environment captured in the infrared image. The method further includes generating an order for changing the imaging apparatus from the first configuration to a second configuration.

Abstract: Dual-controller storage systems and methods for controlling the dual-controller storage systems are provided. The dual-controller storage system may include a first controller, a second controller, at least one expander, a first storage array, and a second storage array. The at least one expander may be connected with the first controller, the second controller, the first storage array, and the second storage array. The first controller and the second controller may be communicatively connected via a network. When the first controller and the second controller both work in a normal state, the first controller may be configured to control the first storage array, and the second controller may be configured to control the second storage array. The first controller and the second controller may work in synchronization.

Abstract: The present disclosure relates to systems and methods for live streaming. The system may receive a play request associated with a live stream from a terminal device. The system may determine whether there are one or more cached fragments associated with the live stream, wherein the one or more cached fragments are cached from a stream source via a first protocol. In response to determining that there are one or more cached fragments associated with the live stream, the system may determine whether the play request is a request that the terminal device requests the live stream for the first time. In response to determining that the play request is the request that the terminal device requests the live stream for the first time, after a caching of a current fragment is completed, the system may transmit an index file corresponding to the current fragment and at least one of the one or more cached fragments to the terminal device via a second protocol.

Abstract: System and method for alarm processing are provided. The system may include a plurality of security devices. The plurality of security devices may be divided into at least one group. One group of the at least one group may include a first security device and one or more second security devices. The first security device may receive, from the one or more second security devices, one or more first alarms generated by the one or more second security devices. The first security device may determine that an alarm condition is satisfied based at least on one of the one or more first alarms and one or more second alarms generated by the first security device. The first security device may send, based on the determination, at least one of the one or more first alarms and the one or more second alarms to a user terminal.

Abstract: The present disclosure provides a system and method for traffic violation detection. The system may determine a target object which should be given precedence with respect to a vehicle from one or more moving objects by performing an angle correction on the one or more moving objects, wherein the one or more moving objects are objects moving in a predetermined region. When it is determined that a moving direction of the target object is a moving direction towards middle of a road and a target vehicle passing through the predetermined region is not courteous to the target object, the system may mark a state of the target vehicle as a violation state.

Abstract: System and method for determining a 3D coordinate of a moving target are provided. The system may obtain 2D detection data of the moving target generated by a 2D detection device including two detection assemblies that are mounted at a known height above a horizontal plane along a first axis that forms a tilting angle with the horizontal plane. The system may determine a 2D coordinate of the moving target in a first coordinate system including the first axis and a second axis that is perpendicular to the first axis based on the 2D detection data. The 2D coordinate of the moving target may include a first value of the first axis and a second value of the second axis. The system may determine the 3D coordinate of the moving target in a second coordinate system based on the 2D coordinate, the tilting angle, and the known height.

Abstract: A circuit for driving a light-emitting diode (LED) load and a direct current to direct current (DC-DC) converter includes a first sampling sub-circuit, a driving circuit. The first sampling sub-circuit is configured to generate a current signal representing a load current of the LED load. The driving circuit is configured to receive a brightness adjustment signal and a frequency adjustment signal; generate a first control signal, based on the current signal and the brightness adjustment signal, for controlling an output current of the DC-DC converter; and generate a second control signal, based on the frequency adjustment signal, for controlling a switching frequency of the LED load.

Abstract: The present disclosure relates to systems and methods for object monitoring. The system may obtain at least one image associated with a predetermined region captured by a capture device. The system may obtain a predetermined traffic rule associated with the predetermined region, wherein the predetermined traffic rule is determined based on one or more predetermined images associated with the predetermined region. The system may identify at least one object in the at least one image. The system may monitor a traffic behavior of the at least one object based on the predetermined traffic rule.

Abstract: The present disclosure is related to a lens systems. The lens system includes, in order from an object side to an image side, a first lens group G1 having negative refractive power, a second lens group G2 having positive refractive power, a third lens group G3 having positive refractive power, and the lens system satisfies the a ? f 1 f ? ? b , c ? f 2 f ? ? d , e ? f 3 f ? ? f , following condition: and at least partial of G3 is made of material satisfying the following condition: Vd>g and dn/dt?h, wherein a, b, c, d, e, f, g and h are constants, f1 represents a focal length of G1, f2 represents a focal length of G2, f3 represents a focal length of G3, f? represents a focal length of the lens system, Vd represents an abbe constant, n represents a refractive index, t represents temperature, and dn/dt represents a differential of refractive indices against temperature.

Abstract: Systems and methods for determining a target hotspot list are provided. The system may obtain a first hotspot list generated by a first device. The first hotspot list may include one or more first hotspots detected by the first device. The system may obtain a second hotspot list generated by a second device. The second hotspot list may include one or more second hotspots detected by the second device. The system may generate the target hotspot list related to the second device based on the first hotspot list and the second hotspot list. In some embodiments, the system may further determine a target hotspot in the target hotspot list and send identification information associated with the target hotspot to the second device, such that the second device can be connected with the target hotspot.

Abstract: A method for video stabilization may include obtaining a target frame of a video; obtaining a plurality of first feature points associated with the target frame; determining whether the plurality of first feature points include at least one feature point relating to a moving object in the video; in response to a determination that the plurality of first feature points include at least one feature point relating to the moving object in the video, removing the at least one feature point relating to the moving object; performing video stabilization to the target frame based on remaining first feature points of the plurality of first feature points; determining, in the target frame, at least one supplement feature point; and designating the at least one supplement feature point and the remaining first feature points as second feature points associated with a frame immediately following the target frame in the video.

Abstract: The present disclosure relates to systems and methods for image coding. The system may determine a coding unit in an image and divide the coding unit into a plurality of coding sub-units. For at least one coding sub-unit of the plurality of coding sub-units, the system may determine multiple reference lines of the at least one coding sub-unit. The multiple reference lines may include a first reference line closest to the at least one coding sub-unit and one or more second reference lines. The system may determine one or more most probable modes (MPM) lists associated with at least one coding sub-unit. The one or more MPM lists may include at least one first MPM list corresponding to the first reference line and at least one second MPM list corresponding to the one or more second reference lines. The system may determine a target prediction mode associated with one of the at least one coding sub-unit based on the one or more MPM lists.

Abstract: The present disclosure provides a circuit including a coaxial cable interface, a data module, a power module, a power signal transmission branch, and a data signal transmission branch. The data module may receive or output a data signal. The power module may receive or output a power signal. The power signal transmission branch may be electrically coupled between the coaxial cable interface and the power module, and may include an inductor that allows the power signal to pass. The data signal transmission branch may be electrically coupled between the coaxial cable interface and the data module, and may include a capacitor that allows the data signal to pass and a first electrical surge protection circuit. The first electrical surge protection circuit may release a surge current on the data signal transmission branch.

Abstract: A method for inter-frame prediction may include obtaining a current coding unit in an image. The method may also include determining feature information of the current coding unit, the feature information being associated with at least one of a size feature or a texture feature. The method may also include determining, based on the feature information of the current coding unit, an MV candidate list. The method may also include determining, based on the MV candidate list, a prediction result of the current coding unit.

Abstract: The present disclosure relates to systems and methods for connecting to a wireless network. The methods may include obtaining, within a dwell time, at least one packet transmitting on a current channel among a plurality of predetermined channels, wherein the plurality of predetermined channels at least include a target channel on which a connection to the wireless network is to be established; determining a matching score of the current channel based on the at least one packet, wherein the matching score reflects a likelihood that the current channel is the target channel; and determining, based on the matching score, an additional dwell time for continuing dwelling on the current channel to further evaluate the likelihood that the current channel is the target channel.

Abstract: The present disclosure relates to systems and methods for image processing. The methods may include obtaining, by a first processor, a first image and a second image of a target region. The methods may further include generating, by the first processor, a fused image based on the first image and the second image. The methods may further include identifying, by a second processor, a region of interest (ROI) associated with a target object in the first image. And the method may also include generating, by the second processor, a target image based at least in part on information associated with the ROI in the first image and the fused image.

Abstract: A method for video stabilization may include obtaining a target frame of a video; dividing a plurality of pixels of the target frame into a plurality of pixel groups; determining a plurality of first feature points in the target frame; determining first location information of the plurality of first feature points in the target frame; determining second location information of the plurality of first feature points in a frame prior to the target frame in the video; obtaining a global homography matrix; determining an offset of each of the plurality of first feature points; determining a fitting result based on the first location information and the offsets; for each of the plurality of pixel groups, determining a correction matrix; and for each of the plurality of pixel groups, processing the pixels in the pixel group based on the global homography matrix and the correction matrix.

Abstract: A method and system for face alignment. The method may include obtaining an image processing model set including M (M?2) candidate models, and obtaining a test image including a target face. The method may also include conducting T (T?1) stages of model set updating operation. Each stage of the T stages of model set updating operation may include conducting a performance evaluation to each candidate model of the image processing model set with respect to the test image, and updating the image processing model set by excluding at least one model from the image processing model set based on the performance evaluation. The method may further include designating, after completing the T stages of model set updating operation, at least one candidate model of the image processing model set as a target model, and determining, based on the target model, a result shape as a shape of the target face.

Abstract: The present disclosure relates to systems and methods for coding. The methods may include receiving at least two contexts, for each of the at least two contexts, obtaining at least one coding parameter corresponding to the context from at least one lookup table, determining a probability interval value corresponding to the context based on a previous probability interval value and the at least one coding parameter, determining a normalized probability interval value corresponding to the context by performing a normalization operation on the probability interval value, determining a probability interval lower limit corresponding to the context based on a previous probability interval lower limit and the at least one coding parameter, determining a normalized probability interval lower limit corresponding to the context by performing the normalization operation on the probability interval lower limit, and outputting at least one byte based on the normalized probability interval lower limit.