1302 results about "Shooting range" patented technology

The autofocus system of the present invention is characterized by comprising a target subject specifying device which specifies a target subject to be put into focus, a tracking image pickup device which captures a subject image in the shooting range of the camera, and is provided in addition to an image pickup device of the camera which captures a subject image to be recorded or regenerated, a target subject movement detection device which detects a movement in the shooting range of the target subject specified by the target subject specifying device according to an image signal of a subject image captured by the tracking image pickup device, and an AF area change device which changes a range of the AF area such that the movement of the target subject detected by the target subject movement detection device is tracked.

The invention discloses a method and a smartphone for implementing reading learning. The method comprises the following steps: setting a camera at the end part of the smartphone in advance, and turning on the camera to obtain an image of a book content to be read by a user; querying whether data matched with the image exist in a pre-set book database or not; if so, determining the leaning mode corresponding to the data, and outputting the corresponding learning mode to the user through the smartphone. Through the technical scheme provided by the invention, the object of reading the book content through the smartphone is achieved, the defects that the existing phone camera cannot accurately focus on the reading book content in a shooting range, and the reading action is not smooth in the use process are overcome, and a convenience is provided for the reading learning to the user.

The invention discloses a three-dimensional reconstruction method for a large-scale outdoor scene. The three-dimensional reconstruction method for the large-scale outdoor scene comprises the following steps of: using a multi-camera acquisition system, acquiring the images of the outdoor scene at different sight points, and calibrating the parameters of cameras; dividing the multiple cameras into camera clusters according to the relative position relationships and the imaging ranges of the cameras in the multi-camera acquisition system; for the cameras in the same cluster, recovering the three-dimensional structures of local areas in the scene according to the shot images; and performing registration and fusion on the three-dimensional reconstruction results of the different local areas, and recovering the three-dimensional structure of a full-shooting range in the scene. In the three-dimensional reconstruction method for the large-scale outdoor scene disclosed by the invention, the spatial information of the outdoor scene in the full-shooting range is recovered by the three-dimensional reconstruction results of the local areas, according to the images acquired at multiple sight points, and by using the multi-camera acquisition system with a specific structure, and a camera self-calibration method based on the outdoor scene; the reconstruction range is large; and the method is definite in principle and low in realization method.

The invention is applicable to the technical field of networks and provides a network simulation topology construction method and device applied to a network shooting range and a computer readable storage medium, and the method comprises the steps: detecting a user operation triggered in a graphical editing interface, generating a topology file according to the user operation, and enabling the topology file to be used for representing the network topology of the network shooting range; analyzing the topological file, and generating a configuration file according to an analysis result, the configuration file comprising a virtual machine configuration file and a network configuration file; starting a core service based on the configuration file, wherein the core service is used for calling acorresponding API to construct a network simulation topology; And based on the core service, deploying network simulation resources corresponding to the configuration file according to the type of the network simulation environment. According to the invention, the real network topology of key infrastructure and industrial control can be reproduced visually, quickly, vividly and completely.

The invention relates to a shooting target and method of using the target for electronically determining the shooting position on a shooting target. Said shooting position is determined in a number of ways, including by use of a plurality of accelerometers to determine the impact area and transmit data relating to the impact to a remote receiver for real-time presentation to the shooter. Said method enables the shooting position to be determined by means of relatively economical electronic systems and said shooting target is portable such that the shooter may bring the target to a plurality of firing ranges and locations to convey the same real-time reporting and benefits to the shooter. Said shooting target may be set-up on a standard target stand to wirelessly relay shot impact information to a portable personal computing device to present real-time virtual impact data to the shooter. This data can then be stored and categorized given user-selected inputs and shared with other shooters in an online forum.

The invention relates to a scene rendering method and device, a computer readable storage medium and computer equipment. The method comprises the steps of loading a multi-level three-dimensional modeland a model map corresponding to each object required for scene rendering; wherein a model map corresponding to the three-dimensional model meeting the projection condition projects light and shadowdata of a first target level three-dimensional model; determining the distance between each object in the shooting range of the virtual camera and the virtual camera; determining a display level of the corresponding object on the target page according to the distance; and rendering a corresponding object on the target page based on the three-dimensional model of the display hierarchy and the corresponding model map. According to the scheme provided by the invention, the rendering effect of the virtual scene can be improved under the conditions of increasing the sight distance range and ensuring the loading speed of the virtual scene.

The invention provides a monopulse antenna angle simulation tracking method, which aims at providing an environment for inspecting and simulating equipment tracking performance at any time to a shooting range monitor system. The method is characterized by comprising the following steps of: establishing an XOY plane measurement coordinate system by taking the center of three axes of an antenna as an original point; constructing a simulation circuit according to an antenna pattern simplified model; drawing four calibration curves of a sum and different signal magnitude difference-deviation angle relationship, sum and difference signal amplitude different-error voltage relationship, deviation angle-error voltage relationship and deviation angle-AGC (automatic gain control) voltage relationship on each angle beyond the main beam of the antenna, and establishing a data mapping table; acquiring the controlled variable of an angle deviation control circuit and simulating to generate a radio frequency tracking signal according to a method of checking a signal amplitude mapping table; and demodulating and extracting an angle error signal by receiving link amplification and down-conversion in an intermediate frequency tracking receiver; and feeding position and pitch angle error voltage to an antenna control unit to complete angle closed-ring tracking.

The present invention provides an escalator monitoring system which is provided with at least two shooting devices (22a, 22b) at a place where the body of the escalator (11) can be monitored. Each image which is shot through the shooting devices (22a, 22b) is transmitted to an image processor (24). In the image processor (24), the three-dimensional information is obtained according to each image.The three-dimensional information is analyzed. The position of a passenger (10) who uses the escalator (11) is detected, wherein the position comprises the depth direction of the shooting range, and simultaneously, the motion of the passenger (10) is detected based on the operation information of escalator (11).

A detector for checking the grading performance of motor vehicle headlight consists of two reference columns for positioning, three digital cameras, detection screen, driving mechanism of screen and computer. It features setting screen driving mechanism in front of motor vehicle, two digital cameras on top of screen with shooting range to cover planar width defined by two positioning reference column, another digital camera on one of two said columns or near center of line connected on the ground between said two columns. The detecting method is also disclosed.

The invention discloses a spatial three-dimensional positioning method. A target object used for positioning and extracting characteristic points is adopted, the overlap region of shooting range of each camera covers certain space in front of a display screen, and the target object is operated in the overlap region. The positioning steps comprise: calibrating the camera; capturing the characteristic points of two or more than two target objects; determining the space coordinate of each object characteristic point; determining the space direction directional line of each target object; determining corresponding coordinate on the display screen along the space direction directional line of the target object, namely the positioning coordinate. The invention has simple positioning operation and can realize multiple-point three-dimensional positioning; when the display screen is large, by using the method of positioning correspondingly on the display screen along the space direction directional line of the target object by the invention, three-dimensional positioning can be easily realized, and thus, the invention is especially suitable for large-screen positioning.

The present invention discloses a sound source positioning method and apparatus, solving the problem of low pickup accuracy in directed pickup of a target voice in the prior art. The method is applied to a terminal with two microphones at the top. The two microphones are respectively arranged at the front and the back of the terminal. The method comprises the steps of when the terminal is in a video call state, and when whether a target user exists in a shooting range of a camera is determined, collecting a sound signal by the two microphones and calculating, based on the collected sound signal, a sound pressure difference of the two microphones; determining, by using the sound pressure difference of the two microphones, whether conditions of determining a sound source direction with the sound pressure difference are met; if the conditions are met, determining, based on the sound pressure difference of the two microphones, whether the sound signal comprises a backward sound signal; and if it is determined that the sound signal comprises the backward sound signal, filtering the backward sound signal in the sound signal. In a low signal-to-noise ratio scenario, sound source positioning based on the sound pressure difference can help improve the pickup accuracy of the target sound source.

A gaze tracking device and method, and a recording medium for performing the same are disclosed. The gaze tracking device, which is a device for tracking the gaze of a person present in an area in which the gaze tracking device is located, sets a photographing unit of the gaze tracking device to a wide-angle mode, photographs an area within a wide-angle view of the photographing unit, detects the person from a photographed image, and converts the wide-angle mode of the photographing unit into a narrow-angle mode so as to track the gaze of the person when the person is detected from the photographed image, wherein when tracking the gaze of the person by converting the wide-angle mode of the photographing unit into the narrow-angle mode, if the person is out of the shooting range of the narrow-angle mode while tracking the gaze of the person in the narrow-angle mode of the photographing unit, the photographing unit is converted from the narrow-angle mode into the wide-angle mode so as to track the gaze of the person by re-searching for the person.

An image capture apparatus shifts an image sensor at each shooting initiation time in the continuous-shoot mode in the event of a camera-shake in response to a control signal which reflects an offset signal indicating pixel shifting information in a compensating signal indicating shake compensating information. Thereby, a change in the shooting range of the image sensor due to the camera-shake is mostly compensated for and the shooting range is changed by one pixel at each shooting. Thus, even in the event of a camera-shake, the distance between a feature portion of a main subject and a fixed pattern noise can be made different for each of continuously shot images. As a result, even in the event of the camera-shake, a composite image having fixed pattern noises scattered can be obtained by combining continuously shot images with reference to the feature portion.

An embodiment of the invention discloses a video frame switching method, a video frame switching device and video frame switching equipment, and belongs to the field of terminal equipment. The video frame switching method includes: detecting whether a preset switching event occurs or not via acquiring frame and/or audio information when first frame shooting equipment is applied to video call; and switching the first frame shooting equipment to second frame shooting equipment when the preset switching event is detected. During the video call process, the preset switching event is detected via acquiring the frame and/or audio information, and the first frame shooting equipment to the second frame shooting equipment when the preset switching event is detected, so that intelligent switching of frame shooting equipment on terminal equipment is realized, frame shooting range of video call is enlarged, manual video frame switching is not required, switching operation is simplified, and quality of video call is improved.

An image password lock system by tracing the position information of the organism or article feature is provided. In this embodiment, a photographic device photographs a movable target object to read a dynamic image data. Moreover, the dynamic image data has a predetermined shooting range set to be a whole-region image, and the whole-region image has a central region and a plurality of specific password regions. A target object image is displayed by a display device, and then processed by an image processing device, thereby calculating a center coordinate point of the target object image in the dynamic image data, compiling a password constituted by a movement position of the target object image, displaying the password, and validating the password. Therefore, benefits of a novel password input mode without any contact, an efficient anti-theft function and the like are provided.

The invention provides a three-dimensional image coding method with a motion prediction function for a head-mounted display in virtual reality. The method comprises the following steps: dividing the real world by a coding unit and establishing a three-dimensional space storage table; coding the image in a shooting range of a camera in real time and storing lattices and continuously updating the content of each storage lattice along with change of the motion trail of the head; acquiring a motion trail curve of the head and analyzing the position of the lattice to be updated in the next visual window; taking out all data from the storage lattice in the to-be-updated lattice position for compressed coding and storing in a high speed internal storage device; and integrally fusing and displaying visual data of a virtual scene and the real world, input to an application processor, according to the current motion trail position. The method solves the problem of dizziness generated by image delay in a virtual reality technology. The invention further discloses a coding device which is compact in structure, low in cost, wide in application range and anti-dizziness based on virtualization technology and has a high data compression capacity.

The invention discloses a method of taking pictures in different perspectives with double cameras and a terminal thereof, in order to obtain pictures of high quality. The method comprises the following steps: starting a motor of the first camera or a motor of a second camera in order to drive the first camera or the second camera to rotate, so as to make a rectangular photosensitive element of the first camera or a rectangular photosensitive element of the second camera be perpendicular to each other within one plane; taking same pictures of one scenery synchronously with the first camera or and the second camera; and combining the two pictures taken by the first camera and the second camera into a high-definition picture. Due to the cameras in different perspectives can acquire self-righteous clear pictures in the shooting range, and the picture acquired by each camera can be combined to compensate the disadvantage of the picture taken by each camera, the method of taking pictures in different perspectives with double cameras and terminal thereof can obtain pictures with higher definition.

The invention discloses a method for automatically judging the traffic jam level through an electronic eye video, which comprises the following steps of: (1) installing an electronic eye in a region needing traffic jam monitoring, wherein the shooting range of the electronic eye covers the monitored region; (2) starting the electronic eye to shoot the region needing traffic jam monitoring, and sending a shot video image to a monitoring server in real time; and (3) computing the relative movement speed of a moving target by the monitoring server, and determining the jam level. A user can inquire the current jam data of a specific road section through mobile phone short messages, telephone voice or surfing on the Internet. The invention can realize the automatic analysis and judgment and the user inquiry of road traffic jam conditions by utilizing traditional electronic eye resources and can supply timely interactive traffic road condition information inquiry for broad driving and riding personnel through lower construction cost and operation cost.

The present invention provides an intelligent robot data processing method, an intelligent robot data processing device and an intelligent robot system. The method provided by the invention comprises: an image capture step of capturing face images in a preset shooting range; a face expression information acquisition step of locking a target face in the face images and performing expression recognition of the target face to obtain face expression information; a machine expression output instruction determination step of analyzing the face expression information and matching the obtained analysis data and the preset expression output instruction database to obtain a corresponding machine expression output instruction; an expression output step of outputting corresponding machine expressions according to the machine expression output instruction. The intelligent robot data processing method is able to effectively overcome the defect that the current expression robot cannot present the expression associated with the user's face emotion at present, therefore the emotion expression ability of a robot system is enhanced and the emotional interaction between the robot system and a user is improved.

The invention discloses a hand extinguishing device, for solving the defects of present technique of air-powered fire-extinguishing cannon which only can be supported with should and has complex structure, small pressure and limited application area. The invention provides a trestle type air-powered fire extinguishing cannon comprising: a barrel; a firing mechanism mounted in the center of barrel; a high-pressure tank connected to the inner cavity of barrel; a cannon lens and a angle-measuring instrument mounted on the barrel; a exhaust valve mounted on the lower part of barrel; a barbette with a pestle; and a device formed by adjustable trestle and connected to the barrel to support the barrel. The invention utilizes the compressed gas as power, while it has the advantages as safety, reliability, simple structure, high working pressure, long shoot range, wide application range, flexible operation and high hit ratio.

The present invention presents a bionic automatic vision and line of sight control system and method, wherein the system comprises multiple camera sets, wherein each camera set comprises one or more parallel camera with different shooting range, wherein each camera set is driven by one or three actuators, capable of rotating in two or three degree of freedom. The present system is capable of fast object positioning, high accuracy tracking and wide range compensation for line of sight deviation caused by the movement of the system. More specifically, the system can ensure two camera sets to position and track the same object at the same time. The present system not only can be used in various fixed places to monitor, protect and care taking, it can also be installed on various moving objects, such as cars, airplanes, boats, military equipments, and it can be used as eyes for various types of robots.

The invention discloses an identification method of an advertisement image, which comprises the steps that an image to be identified which is uploaded from a mobile terminal is obtained; the image to be identified contains a part of the advertisement image or the whole advertisement image; the image to be identified is compared with feature information in a preset feature information base; the advertisement image corresponding to the image to be identified is obtained; advertisement information corresponding to the advertisement image is obtained; and the advertisement information is fed back to the mobile terminal. The invention further provides a server. According to the identification method, a method of obtaining the advertisement information by adding an additional two-dimensional code or a bar code on the advertisement image is avoided, the whole advertisement image is within an available shooting range of the user, a method that the user have to shoot a specific position of the two-dimensional code or the bar code is avoided, the difficulty for the user to obtain the extended advertisement information is lowered, the advertisement information carried by the advertisement image is obtained by the user quickly and conveniently, and a user experience is further optimized.

The invention relates to the technical field of virtual network simulation, in particular to a simulation method and system for simulating a real network environment based on virtualization, electronic equipment and a storage medium. The simulation method comprises the following steps: starting to create a target range; setting basic information; setting topology information; creating resources; setting full-scene startup; storing the scene; and completing shoot range creation. According to the simulation method and system for simulating the real network environment based on virtualization, the electronic equipment and the storage medium, network attack and defense parameters such as a topological structure, the number of nodes and rule parameters can be configured according to needs; multi-mode drilling can be carried out to meet different application requirements, including red and blue confrontation, individual soldier drilling and equipment system verification; in the drilling process, the target range can support rapid deployment of different attack and defense scenes in the aspects of operation resources and management resources, so that safety evaluation is conducted on thetarget range in an omnibearing mode, and weak links are perfected in an emphasized mode.

The invention discloses a camera and a display, and relates to the field of display equipment. The camera is arranged in a display body and comprises a camera module, a transmission device and a driving device; the driving device is in transmission connection with the transmission device, the transmission device is in transmission connection with the camera module, and the driving device is configured to drive the transmission device to move to drive the camera module to extend out of or retract into the display body and drive the camera module to perform horizontal rotation and pitching rotation. The camera can be built in, the shooting angle can be automatically adjusted in all directions, the angle adjustment is more accurate, and then the flexible shooting requirement is met. The display disclosed by the invention comprises a display body and the camera, and the camera can extend or retract relative to the display body and can perform horizontal rotation and pitching rotation afterthe camera extends out of the display body. The displayer is integrally coordinated, concise in appearance, accurate in shooting angle and wide in shooting range.

The invention relates to the field of video monitoring, and discloses a method and a device for processing mobile detection. The method of the invention comprises the following steps: presetting at least two detection regions in a shooting range of a camera, switching the current mode to a day mode or a night mode according to a preset day-night switching control means and a corresponding switching threshold, reading mobile detection parameters corresponding to the current mode from the mobile detection parameters of each detection region, and judging whether a mobile detection event occurs to an image shot by the camera in each detection region according to the read mobile detection parameters. According to the invention, multiple detection regions are set for mobile detection, and the application requirements of large monitoring region of the camera under high-definition monitoring and regional mobile detection can be satisfied. Meanwhile, each detection region supports the setting of two sets of mobile detection parameters for day and night according to the needs of specific scenes (day/night), and the minimum false reporting rate and missed reporting rate can be achieved for mobile detection.

The invention relates to a display screen detection device. The display screen detection device comprises a camera detection mechanism and a display screen detection jig. The camera detection mechanism comprises a camera mounting rack, a main camera and at least two auxiliary cameras, wherein a photographing area is prearranged at the bottom of the camera mounting rack, the main camera is arranged above the photographing area, and the auxiliary cameras are distributed on the periphery of the photographing area. The display screen detection jig comprises a jig body arranged under the photographing area, a light-emitting module, a detection probe group and a signal connector, wherein the surface of the jig body is provided with a display screen accommodating cavity, the light-emitting module is arranged at the bottom of the display screen accommodating cavity, the detection probe group is arranged on one side of the display screen accommodating cavity, and the signal connector is fixed to the jig body and is connected with the light-emitting module and the detection probe group. When display screen detection is performed, the display screen accommodating cavity is located in the shooting ranges of the main camera and the auxiliary cameras through the photographing area. By the adoption of the the camera detection mechanism and the display screen detection jig, the detection accuracy can be improved, and the problems of artificial secondary damage and relatively inaccurate detection results caused by manual detection are avoided.

Embodiments of the present invention provide a shooting range simulator system and method able to monitor the aiming history of a shooter. The method may include determining an aimed-at position of one or more aiming devices on a target screen by selectively illuminating positions on the screen according to a predefined scheme; detecting scattered light from the illuminated position from one or more viewing angles; and deriving coordinates of the aimed-at position based on the timing of the detection relative to the scanning scheme. The system may include a scanner to selectively illuminate screen elements and a processing center to determine an aimed-at position on the screen. Additional features are described and claimed.