Abstract: A method, apparatus and system for information prompt, and an intelligent electronic door lock are provided. The method includes: when detecting that an intelligent electronic door lock performs an operation for unlocking a door, determining a target user behavior type corresponding to the operation for unlocking the door, obtains target user concern data corresponding to the target user behavior type, and generates to-be-output prompt information based on the target user concern data; wherein, the prompt information is configured for prompting a user to perform a target behavior or displaying the target user concern data, and the target behavior is a behavior corresponding to the target user concern data; and outputting the prompt information. The problem that the intelligent door lock system has a single humanized function may be solved.

Abstract: Disclosed is a video camera, comprising a lens assembly, an upper shell assembly and a lower shell assembly. The upper shell assembly covers the lens assembly. The lens assembly is fixedly connected to the upper shell assembly, and both the lens assembly and the upper shell assembly are provided on the lower shell assembly so as to be rotatable in P-direction. The upper shell assembly is provided with a first protrusion, and the lower shell assembly is provided with a second protrusion, and the first protrusion and the second protrusion are press-fitted to each other so as to limit the rotation of the lens assembly in P-direction relative to the lower shell assembly. The rotation adjustment of the lens in P-direction can be realized by directly detaching the first protrusion from the second protrusion without removing the upper shell assembly from the lens assembly, which is convenient to operate.

Abstract: The present application provides a device supporting card-swiping, which relates to the technical field of communications. The device supporting card-swiping comprises a display screen (1), a protective back plate (2) and a contactless card reader (3). Wherein the antenna (310) of the contactless card reader (3) is arranged between the display screen (1) and the protective back plate (2) for sensing a user's card swiping signal. The device supporting card-swiping can increase the effective card swiping distance and improve user experience.

Abstract: The embodiment of the present application provides a method, apparatus and application system for extracting a target feature. The method includes: acquiring target area video data captured by a panoramic camera; determining, by a target detection algorithm, a tracking target having a preset feature in the target area video data; allocating the tracking target to a detail camera, such that the detail camera tracks the tracking target and acquires close-up video data of the tracking target; extracting, from the close-up video data, attribute information of the tracking target. With the embodiment of the present application, attribute information of each target can be accurately extracted, improving the accuracy of extracting the attribute information of the target.

Abstract: An encoding and decoding method, apparatus and device is disclosed. The method comprises: dividing, if characteristic information of a current block meets specific conditions, the current block into a first triangle sub-block and a second triangle sub-block; constructing a motion information list for the current block, the motion information list includes multiple pieces of candidate motion information; acquiring first target motion information of the first triangle sub-block and second target motion information of the second triangle sub-block from the motion information list; the first target motion information is different from the second target motion information; performing motion compensation on the first triangle sub-block based on the first target motion information to obtain a prediction value of the first triangle sub-block; performing motion compensation on the second triangle sub-block based on the second target motion information to obtain a prediction value of the second triangle sub-block.

Abstract: An encoding and decoding method, apparatus, and device is disclosed.

Abstract: A camera bracket includes a T-direction supporting base (1) and a rotatory adjustment mechanism (2); a fixed tooth slot (10) is provided in the T-direction supporting base; the rotatory adjustment mechanism includes a rotatory supporting base (20), an adapter (21) and a fine adjustment bolt assembly (22). The rotatory supporting base includes a fine adjustment plate (200) and a rotatory tooth slot (201) fixedly connected, and a limiting hole (200a) is provided in the fine adjustment plate; the adapter includes a rotatory connection portion (210) and a connection base (211) fixedly connected. The connection base is provided with a fine adjustment threaded hole (211a) corresponding to the limiting hole which can be aligned with the limiting hole in a vertical plane perpendicular to an axis of the rotatory tooth slot.

Abstract: A method for sending an alarm message, and belongs to the field of computer technology. The method includes: acquiring a detection image (201) captured by an image capturing apparatus; determining a target detection area (202); and detecting a person's call status information corresponding to an image in the target detection area according to a preset on-the-phone determination algorithm model, and sending a first alarm message (203) to a server if the person's call status information shows that the person is on the phone.

Abstract: Embodiments of the present application provide a method and apparatus for displaying objects. In the method, video frames that contain objects of predefined types are detected in pieces of video data to be displayed in a first display region. If such video frames are detected, the objects of the predefined types are extracted from the detected video frames. The extracted objects are then displayed in sub-regions of a second display region that is different from the first display region, with each object being displayed in one of the sub-regions. In this way, the objects that a user is interested in can be extracted from a video, and displayed in a way to be viewed with ease.

Abstract: Data processing method and apparatus applicable to a client in a distributed data processing system. The method includes receiving a data processing instruction for to-be-processed data, determining an active region, obtaining data distribution information of the active data region, dividing a data range of each active data region into at least one sub-data range, generating a data processing task for each active data region, sending the task scheduler a data processing request which determines a data processing server executing each data processing task and sends the data processing server the data processing task to be processed by it, and receives processing results of performing data processing for the allocated sub-data ranges, receiving a processing result fed back by the task scheduler and with respect to the to-be-processed data. The method and apparatus improve the parallel processing speed of data processing servers and overall processing performance of the system.

Abstract: A lens adjusting device for a multi-lens camera, comprising: a first holder and a second holder, which is provided on the first holder and is configured for mounting a lens; wherein, the second holder is rotatably cooperated with the first holder and can rotate in a direction parallel to a support plane of the first holder; one of the support plane of the first holder and a surface on the second holder opposite to the support plane is provided with a plurality of first toothed slots, and the other is provided with a first engaging teeth, and the first engaging teeth is elastically engaged with the first toothed slots in the rotation direction of the second holder. The solution above can solve current issues that operation is complex and adjustment efficiency is low existed in adjustment of a lens in P direction by a multi-lens camera.

Abstract: Embodiments of the present application provide an image storage method and apparatus, and an electronic device and a storage medium. In the method, pixel data obtained by scanning with a first partial region of a scanning region is acquired as first pixel data, and the first pixel data is stored in a storage space; the first pixel data is corrected by using a preset correction algorithm to obtain second pixel data, and the second pixel data is stored in the storage space; if it is determined that the remaining space of the storage space meets the preset condition, the pixel data obtained by scanning with the remaining region of the scanning region is acquired as the third pixel data, and the third pixel data is stored in the storage space; wherein, the scanning mode of the remaining region is a preset second scanning mode; and the third pixel data is corrected by using the preset correction algorithm to obtain fourth pixel data, and the fourth pixel data is stored in the storage space.

Abstract: Disclosed is a method and apparatus for controlling a synchronous output of a digital matrix, and an electronic device, which relates to the field of multi-media technology and can control the synchronous outputs of output units. The method includes: when output units are activated or an individual output unit in the output units is re-activated after an abnormality occurs in this individual output unit, calibrating output start times and output periods of the output units such that the output start times of the output units are identical and the output periods of the output units are identical; receiving, by the output units, to-be-processed data based on the identical output start times; and after the to-be-processed data is received, controlling the output units to complete processing of the received to-be-processed data within a current output period, such that the output units output the processed data synchronously in a next output period.

Abstract: A method for sending early warning information, a storage medium and a terminal are provided. The method includes: calculating a target similarity between a first face image and a target face image when the first face image captured by an imaging device is acquired; and generating and sending early warning information corresponding to the first face image if the target similarity reaches a similarity threshold at the current moment; wherein, the similarity threshold is determined by a fluctuation degree value of a plurality of similarities in a similarity sample, the similarity in the similarity sample is a target similarity corresponding to a generated warning information, and the similarity sample is updated over. As a result, the accuracy in early warning may be improved.

Abstract: An audio coding method, comprising: obtaining an ith audio frame in n consecutive audio frames and obtaining an ith piece of coded data and an ith piece of redundant data based on the ith audio frame, wherein the ith piece of coded data is obtained by coding the ith audio frame, and the ith piece of redundant data is obtained by coding and buffering the ith audio frame, wherein n is a positive integer, and 1?i?n; and packing the ith piece of coded data and at most m pieces of redundant data before the ith piece of redundant data into an ith audio data packet, wherein m is a preset positive integer. An audio decoding method and a computer device are further provided.

Abstract: Provided in the embodiments of the present application are a dynamic white box-based data processing method, apparatus, and device, the method comprising: using a pre-generated key obfuscation mapping relationship set to perform obfuscation processing on an original key to obtain a redundant key; and inputting the redundant key and to-be-processed data into a white box algorithm library to implement encryption and decryption processing; thus, in the technical solution provided in the embodiments of the present application, different redundant keys can be inputted into the white box algorithm library, so that there is no need to change the white box algorithm library and the key together, increasing the flexibility of the solution.

Abstract: Autofocus methods and devices are provided. The method includes: controlling a lens group to move at a first speed, and photographing an image at a preset photographing frequency when the lens group moves at the first speed; when a definition of the image photographed by the lens group in a state of moving at the first speed satisfies a preset condition, reducing a moving speed of the lens group to a second speed, and photographing images at the preset photographing frequency when the lens group moves at the second speed; and when a first image with a highest definition is determined in the images photographed by the lens group in a state of moving at the second speed, controlling the lens group to decelerate, and controlling, when the lens group stops moving, the lens group to return to a position of the lens group where the first image was photographed.

Abstract: An image object recognition method, apparatus, and computer device are provided. The image object recognition method includes: performing feature extraction in the direction of a horizontal angle of view and in the direction of a vertical angle of view of an image respectively, to extract a lateral feature sequence and a longitudinal feature sequence of the image; fusing the lateral feature sequence and the longitudinal feature sequence to obtain a fused feature; activating the fused feature by using a preset activation function to obtain an image feature; and recognizing an object in the image by decoding the image feature. This solution can improve the efficiency of the object recognition.

Abstract: The application relates to an encoding and decoding method and apparatus, an encoding-side device, and a decoding-side device. The method includes: if characteristic information of a current block meets a specific condition, determining a first reference block corresponding to the current block according to a first original motion vector of the current block, and determining a second reference block corresponding to the current block according to a second original motion vector of the current block; adjusting the first and second original motion vectors according to a first pixel value of the first reference block and a second pixel value of the second reference block to obtain a first target motion vector corresponding to the first original motion vector and a second target motion vector corresponding to the second original motion vector; encoding or decoding the current block according to the first and second target motion vectors.

Abstract: The present application discloses a method and apparatus for generating a panoramic image. A cuboid three-dimensional image of each local space is determined according to an original two-dimensional image of each local space in the overall space and a preset cuboid model corresponding to each local space, and then a three-dimensional panoramic image of the overall space is generated according to all determined cuboid three-dimensional images. Since the three-dimensional panoramic image of the overall space is generated according to the cuboid three-dimensional images of all local spaces, the overall space may be visually viewed at a three-dimensional angle of view to achieve the three-dimensional real-scene effect.