CN106371465A - Method for realizing positioning photographing, and positioning auxiliary apparatus - Google Patents
Method for realizing positioning photographing, and positioning auxiliary apparatus Download PDFInfo
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- CN106371465A CN106371465A CN201610831583.1A CN201610831583A CN106371465A CN 106371465 A CN106371465 A CN 106371465A CN 201610831583 A CN201610831583 A CN 201610831583A CN 106371465 A CN106371465 A CN 106371465A
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- G—PHYSICS
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
- G06K7/10079—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions
- G06K7/10089—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions the interrogation device using at least one directional antenna or directional interrogation field to resolve the collision
- G06K7/10099—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions the interrogation device using at least one directional antenna or directional interrogation field to resolve the collision the directional field being used for pinpointing the location of the record carrier, e.g. for finding or locating an RFID tag amongst a plurality of RFID tags, each RFID tag being associated with an object, e.g. for physically locating the RFID tagged object in a warehouse
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Abstract
The invention discloses a method for realizing positioning photographing, and a positioning auxiliary apparatus. The method comprises the following steps: when a preset condition is satisfied, a positioning auxiliary apparatus reading electronic labels, obtaining identification codes of the electronic labels, and sending the identification codes to a control terminal; and the control terminal receiving the identification codes, according to the identification codes, identifying target electronic labels, obtaining orientations of the target electronic labels, and controlling a photographing apparatus to turn to the orientations of the target electronic labels, wherein the electronic labels are arranged at an area where at least two photographing targets are disposed, and each photographing target is corresponding to at least one electronic label. According to the invention, the electronic labels are arranged at the area where the photographing targets are disposed, the photographing targets are accurately positioned by reading the electronic labels by use of the positioning auxiliary apparatus, and then the photographing apparatus is controlled to turn to the orientations of the electronic labels for photographing the photographing targets, such that automatic accurate positioning photographing is realized, the intelligentization of a system is improved, and user experience is improved.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a method for realizing positioning shooting and recording and a positioning auxiliary device.
Background
At present, some intelligent conference terminals facing small and medium-sized enterprise users are provided with cameras capable of rotating to shoot, and can shoot participants in all directions in a rotating mode, but the intelligent conference terminals are not intelligent enough in the aspect of shooting a speaker in a positioning mode. Or only can rotate at a constant speed for shooting, or the rotating shooting needs to be controlled manually. In order to realize automatic positioning shooting, some solutions propose to realize automatic positioning and control through sound or gestures, but interference sound or interference actions exist in the conference process, which easily causes misjudgment, so that positioning is not accurate. Moreover, speech recognition and gesture recognition also require a learning and familiarity process for the user, resulting in inconvenience in use.
In summary, in the prior art, when the positioning shooting is performed in the conference site, either the control is required, or the positioning is not accurate enough, so that the speaker cannot be automatically and accurately positioned for shooting.
Disclosure of Invention
The embodiment of the invention mainly aims to provide a method for realizing positioning shooting and recording and a positioning auxiliary device, and aims to realize automatic and accurate positioning shooting and recording.
To achieve the above object, in one aspect, a method for implementing positioning shooting and recording is provided, the method comprising the following steps:
when a preset condition is met, the positioning auxiliary device reads the electronic tag, acquires an identification code of the electronic tag and sends the identification code to the control terminal;
the control terminal receives the identification code, identifies a target electronic tag according to the identification code, acquires the position of the target electronic tag, and controls the shooting device to turn to the position of the target electronic tag;
the electronic tags are arranged in the areas where the at least two shooting targets are located, wherein each shooting target corresponds to at least one electronic tag.
Further, the method further comprises:
when the positioning auxiliary device detects the electronic tag, judging that the preset condition is met; or,
when the positioning auxiliary device detects the electronic tag and detects that the positioning auxiliary device is in a static state, judging that the preset condition is met; or,
when the positioning auxiliary device detects the electronic tag, detects that the positioning auxiliary device is in a static state and detects that a shooting target corresponding to the electronic tag speaks, judging that the preset condition is met; or,
and when the positioning auxiliary device detects the electronic tag and detects that the shooting target corresponding to the electronic tag is speaking, judging that the preset condition is met.
Further, the method further comprises:
and when the positioning auxiliary device detects that an object approaches, judging that the shooting target corresponding to the electronic tag talks.
Further, the positioning auxiliary device is arranged on the microphone or the microphone base.
On the other hand, a method for realizing positioning shooting and recording is also provided, and the method is applied to a positioning auxiliary device and comprises the following steps:
when a preset condition is met, reading the electronic tag and acquiring an identification code of the electronic tag;
sending the identification code to a control terminal;
the electronic tags are arranged in the areas where the at least two shooting targets are located, wherein each shooting target corresponds to at least one electronic tag.
Further, the method further comprises:
when the electronic tag is detected, judging that the preset condition is met; or,
when the electronic tag is detected and the positioning auxiliary device is detected to be in a static state, judging that the preset condition is met; or,
when the electronic tag is detected, the positioning auxiliary device is detected to be in a static state, and a shooting target corresponding to the electronic tag is detected to be speaking, judging that the preset condition is met; or,
and when the electronic tag is detected and the shooting target corresponding to the electronic tag is detected to be speaking, judging that the preset condition is met.
Further, the method further comprises:
and when an object is detected to be close to the electronic tag, judging that the shooting target corresponding to the electronic tag is speaking.
In yet another aspect, a positioning assistance device is also presented, the device comprising:
the reading module is used for reading the electronic tag and acquiring the identification code of the electronic tag when a preset condition is met;
the sending module is used for sending the identification code to the control terminal;
the electronic tags are arranged in the areas where the at least two shooting targets are located, wherein each shooting target corresponds to at least one electronic tag.
Further, the reading module includes a judging unit, and the judging unit is configured to:
when the electronic tag is detected, judging that the preset condition is met; or,
when the electronic tag is detected and the positioning auxiliary device is detected to be in a static state, judging that the preset condition is met; or,
when the electronic tag is detected, the positioning auxiliary device is detected to be in a static state, and a shooting target corresponding to the electronic tag is detected to be speaking, judging that the preset condition is met; or,
and when the electronic tag is detected and the shooting target corresponding to the electronic tag is detected to be speaking, judging that the preset condition is met.
Further, the judging unit is configured to: and when an object is detected to be close to the electronic tag, judging that the shooting target corresponding to the electronic tag is speaking.
According to the method for positioning, shooting and recording, provided by the embodiment of the invention, the electronic tag is arranged in the area where the shot target is located, the electronic tag is read by the positioning auxiliary device to realize accurate positioning of the shot target, and then the shooting device is controlled by the control terminal to steer to the position where the read electronic tag is located to shoot and record the shot target, so that automatic and accurate positioning, shooting and recording are realized. Especially, when being applied to the meeting scene, can locate microphone or microphone base with the auxiliary device of location, when the participant uses the microphone to speak, the camera just can be accurate turn to the speaker and fix a position the shooting. Therefore, the intelligent level of the system is improved, and the user experience is improved.
Drawings
FIG. 1 is a flow chart of a method for implementing positioning recording according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a method for implementing positioning recording according to a second embodiment of the present invention;
FIG. 3 is a flowchart of a method for implementing positioning recording according to a third embodiment of the present invention;
FIG. 4 is a schematic diagram of an embodiment of the present invention in which an RFID tag is installed in a conference stand;
FIG. 5 is a block diagram of a system for implementing positioning and recording according to a fourth embodiment of the present invention;
FIG. 6 is a positioning aid of a fifth embodiment of the present invention;
FIG. 7 is a block schematic diagram of a read module of the positioning aid of FIG. 6;
fig. 8 is a schematic structural diagram of a positioning assistance device according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The method for realizing positioning shooting and recording is suitable for various application scenes needing positioning shooting and recording, wherein a typical application scene is a meeting site, and a speaker or a presenter in participants is positioned and shot and recorded in the meeting site.
In the embodiment of the present invention, the electronic tag may be a Radio Frequency Identification (RFID) electronic tag or other electronic tags, and the positioning assisting device reads the electronic tag through a corresponding RFID reader or other readers. The shooting target of the invention refers to an object needing to be positioned for shooting, such as a person, an animal, a robot, equipment and the like, and optionally, when the shooting target is applied to a conference site, the shooting target is a participant.
In the embodiment of the invention, the electronic tags are arranged in the areas where at least two shooting targets are located, wherein each shooting target corresponds to at least one electronic tag, that is, in the shooting targets where the electronic tags are arranged in the areas, at least one electronic tag is arranged in the area where each shooting target is located. Generally, each electronic tag has a different identification code (e.g., ID), and optionally, electronic tags corresponding to the same camera object may have the same identification code.
In the embodiment of the invention, the area where the shooting target is located refers to an area in a certain range near the shooting target, and the electronic tag can be arranged at any position of the area where the shooting target is located.
Optionally, the area where the camera object is located is a table area corresponding to the camera object, for example, on a table (i.e., a conference table or a conference table) in a conference site, the table area corresponding to each seat is provided with at least one electronic tag, the electronic tag may be arranged on the surface, the back surface or the side surface of the table, and when the participants sit on the seats, the table area corresponding to each participant has at least one electronic tag.
Alternatively, the area where the recording target is located may also be the recording target itself, that is, the electronic tag is directly disposed on the recording target. For example, the electronic tag is attached to a hat, clothing (such as chest and sleeves), trousers, shoes of the participant, or worn on the wrist, etc.
In the embodiment of the present invention, only one or at least two positioning aids may be provided. When only one positioning auxiliary device is arranged, the positioning auxiliary device can move among the various shooting targets; when there are at least two positioning auxiliary devices, one positioning auxiliary device can be placed in each area where the shooting target required to be positioned and shot is located.
In the embodiment of the present invention, the positioning assisting apparatus may be a newly added independent device, or may be configured or integrated with an existing device. For example, it can be disposed in a microphone, so that the microphone has a positioning assistance function; or the positioning auxiliary device is arranged in the microphone base, so that the microphone base has a positioning auxiliary function. It is of course also conceivable to design the positioning aid as a microphone base, so that the positioning aid has the function of a base on which a microphone can be placed.
Example one
Referring to fig. 1, a method for implementing positioning recording according to a first embodiment of the present invention is provided, which includes the following steps:
and S11, when the preset condition is met, the positioning auxiliary device reads the electronic tag and acquires the identification code of the electronic tag.
Specifically, the positioning assistance device determines whether a preset condition is satisfied, and when the preset condition is satisfied, the positioning assistance device reads the electronic tag to obtain an identification code of the electronic tag, where the identification code may uniquely identify information (such as an ID, a code, and the like) of the electronic tag.
In the embodiment of the present invention, the positioning assistance device may determine whether the preset condition is satisfied by the following method:
alternatively, when the positioning assisting device detects the electronic tag, it is determined that the preset condition is satisfied. For example, only one positioning auxiliary device is provided, and in the moving process of each shooting target, once the positioning auxiliary device moves to an area where a certain shooting target is located, when an electronic tag is detected in the area, it is determined that a preset condition is met, and the electronic tag is read.
Optionally, when the positioning assistance device detects the electronic tag and detects that the positioning assistance device is in a static state, it is determined that the preset condition is satisfied. For example, there is only one positioning auxiliary device, the positioning auxiliary device moves among the shooting targets, when the electronic tag is detected in an area where a certain shooting target is located after the positioning auxiliary device moves to the area and stops moving and keeps still, it is determined that the preset condition is met, and the electronic tag is read. The mode can prevent the positioning auxiliary device from frequently reading the electronic tag in the moving process, so that the video recording device is frequently rotated, the stability of the system is improved, and the energy consumption is reduced.
Optionally, when the positioning assisting device detects the electronic tag, detects that the positioning assisting device is in a static state, and detects that the camera object corresponding to the electronic tag is speaking, it is determined that the preset condition is satisfied. For example, there is only one positioning auxiliary device, the positioning auxiliary device moves among the various recorded targets, when the positioning auxiliary device moves to an area where a certain recorded target is located and stops moving and keeps still, it is detected that there is an electronic tag in the area, and when it is detected that the recorded target is speaking, it is determined that a preset condition is satisfied, and the electronic tag is read. Because the main purpose of positioning and shooting the video and recording in the conference site is to shoot and record the speaker, the mode is more consistent with the application scene of the conference site, the frequent rotation of the video and recording device is avoided, the stability of the system is improved, and the energy consumption is reduced.
Optionally, when the positioning assisting device detects the electronic tag and detects that the camera object corresponding to the electronic tag is speaking, it is determined that the preset condition is satisfied. For example, each area where the recording target is located has a positioning auxiliary device and at least one electronic tag, and when one positioning auxiliary device detects that the recording target is speaking, it is determined that a preset condition is met, and the electronic tag is read. This applies primarily to the case of a plurality of positioning aids, but of course, this can also be used for the determination with only one positioning aid.
For the detection and determination of the stationary state, a sensor that can sense motion may be provided in the positioning assistance device, and whether the positioning assistance device is in the stationary state is detected and determined by the sensor. For example, the positioning assistance device detects acceleration by an acceleration sensor, and determines that the positioning assistance device is in a stationary state when the acceleration is detected n (n ≧ 2) consecutive times and is 0.
For the detection and judgment of whether the camera-recording target is speaking, the positioning auxiliary device can judge through detecting whether an object (such as a human body) approaches, and when the object approaches, the camera-recording target is judged to be speaking. For example, a proximity sensor (e.g., an infrared proximity sensor) may be provided in the positioning assistance device, and the proximity sensor may detect and determine whether an object is approaching. Because the positioning auxiliary device is arranged on the microphone or the microphone base, when a shooting target talks, the head needs to be close to the microphone, when the head is close to the microphone, the infrared proximity sensor can receive the infrared reflection signal, and when the infrared reflection signal is received, the positioning auxiliary device judges that the shooting target corresponding to the currently detected electronic tag talks. In addition, a light sensor can be arranged in the positioning auxiliary device, and the light can be shielded when a shooting target approaches, so that whether an object approaches can be detected and judged through the light sensor.
In addition, the positioning assistance device may also detect whether the camera object is speaking in other manners, for example, the positioning assistance device determines whether the corresponding microphone collects a sound signal, and determines that the camera object is speaking when the sound signal is collected, and so on.
And S12, the positioning auxiliary device sends the identification code to the control terminal.
The positioning auxiliary device and the control terminal are connected in a wired or wireless mode, for example, wireless connection such as bluetooth and WIFI can be achieved. And the positioning auxiliary device sends the acquired identification code to the control terminal in a wired or wireless communication mode.
And S13, the control terminal receives the identification code, identifies the target electronic tag according to the identification code and acquires the orientation of the target electronic tag.
In the embodiment of the invention, the direction information, namely the information of the direction of each electronic tag, is stored in the control terminal in advance. After the control terminal receives the identification code, the electronic tag needing to be positioned, namely the target electronic tag, is identified according to the identification code, and then the azimuth information is inquired to obtain the azimuth of the target electronic tag.
And S14, controlling the shooting device to turn to the position of the target electronic tag by the control terminal.
Specifically, after the control terminal acquires the position of the target electronic tag, the shooting device is controlled to rotate by a certain angle, the position of the target electronic tag is turned to, and the shooting target corresponding to the target electronic tag is aimed at for shooting. The recording may be shooting, recording only, or other recording methods. In the embodiment of the invention, the control terminal and the camera can be arranged together or separately and are connected for communication in a wired or wireless mode.
In specific implementation, before a conference begins or when the terminal is used for the first time, the control terminal calibrates the positions of the electronic tags and the rotation angle of the shooting and recording device, and after calibration is completed, the parameters can be stored on the terminal to facilitate next use. In order to avoid calibration operations each time the electronic tag is used, optionally, the position and angle at which the control terminal is placed may be fixed, and the position of the electronic tag may also be fixed, for example, by being attached to a table.
For example, a user first selects a "camera device corner positioning calibration" function menu on the control terminal, and enters a calibration mode. The camera device (such as a rotary camera) is generally controlled by a stepping motor, and the range of the rotation angle is generally not more than-180 degrees to +180 degrees. The method comprises the steps that the numerical value of a motor control step counter represents the corner of a shooting device, a positioning auxiliary device is placed at an electronic tag to be positioned, a control terminal receives an identification code of the electronic tag sent by the positioning auxiliary device and then stores the identification code, the control terminal prompts a user to calibrate the corner of a camera, the user manually controls a rotary shooting device to align the position of the electronic tag, the value of the motor step counter is correspondingly stored after the position is determined, and so on, the numerical values of the step counters of all the electronic tags corresponding to the corners are stored, corner positioning parameters are generated, and a calibration mode exits. In the working process, after the control terminal receives the identification codes of the electronic tags, the control terminal inquires corner positioning parameters and controls the shooting device to automatically rotate to a corresponding angle for shooting, and if the control terminal receives the identification codes of 2 electronic tags at the same time, the control terminal aligns to the position corresponding to the identification code received at the next time.
According to the method for realizing positioning shooting and recording, the electronic tag is arranged in the area where the shooting and recording target is located, the electronic tag is read by the positioning auxiliary device to realize accurate positioning of the shooting and recording target, and then the shooting and recording device is controlled by the control terminal to turn to the position where the read electronic tag is located to shoot and record the shooting and recording target, so that automatic and accurate positioning shooting and recording are realized. Especially, when being applied to the meeting scene, can locate microphone or microphone base with the auxiliary device of location, when the participant uses the microphone to speak, the camera just can be accurate turn to the speaker and fix a position the shooting. Therefore, the intelligent level of the system is improved, and the user experience is improved.
Example two
Referring to fig. 2, a method for implementing positioning and recording according to a second embodiment of the present invention is provided, where the method is applied to a positioning assistance device, and includes the following steps:
and S21, when the preset condition is met, reading the electronic tag and acquiring the identification code of the electronic tag.
And S22, sending the identification code to the control terminal.
In the embodiment of the present invention, steps S21 and S22 are the same as steps S11 and S12 in the first embodiment, respectively, and are not repeated here.
According to the method for realizing positioning shooting and recording, the electronic tag arranged in the area where the shooting and recording target is located is read, and the identification code of the electronic tag is sent to the control terminal, so that the shooting and recording target is accurately positioned, and the control terminal can automatically and accurately control the shooting and recording device to be aligned to the direction of the shooting and recording target for positioning shooting. Therefore, the intelligent level of the system is improved, and the user experience is improved.
EXAMPLE III
Referring to fig. 3, a method for implementing positioning shooting and recording according to a third embodiment of the present invention is provided, where the embodiment takes the positioning shooting applied to a conference site as an example, the method includes the following steps:
and S31, initializing the positioning auxiliary device and the conference terminal.
In an embodiment of the invention, the positioning aid is provided as a microphone base on which a microphone can be placed, and the positioning aid is provided with only one positioning aid which can move among the participants. The conference terminal is the aforementioned control terminal, and the conference terminal is an intelligent terminal with a rotating camera (i.e. a shooting and recording device). The conference terminal is placed in the middle of the conference table (namely the table) as much as possible, so that the distances of the participants (namely the shooting targets) shooting the two sides are basically the same, the shooting ranges are basically consistent under the condition of no focusing, the frequency of automatic focusing of the camera is reduced, and the energy consumption is reduced.
As shown in fig. 4, the conference terminal 10 is placed at the center of the conference station 20, the conference terminal 10 has a rotary camera 11, the participant 30 sits around the conference station 20, RFID tags 40 are attached to four sides of the conference station 20 at intervals (the RFID tags may also be attached to other places of the conference room where the microphone is placed), one or more microphones (which may be wired or wireless microphones) may be provided at the conference room, and each microphone is provided with a microphone base (i.e. a positioning aid).
The RFID electronic tag is a passive RFID electronic tag, and is recommended to be an 860-960 MHZ UHF RFID electronic tag with a reading and writing distance of about 10 cm, and the RFID electronic tag is wide in application, low in cost and moderate in positioning distance. Considering that a speaker may want to put a notebook computer in front of the speaker, each participant may be located in an area with at least two RFID tags, for example, 3 RFID tags are attached to a seat (one tag is attached every 15 cm, and the coverage area is 50 cm). The panel of the conference table is generally made of wood, and the RFI D tag may be attached to the back of the conference table in consideration of the aesthetic appearance of the table top of the conference table.
And S32, establishing communication connection between the positioning auxiliary device and the conference terminal.
In the embodiment of the invention, the positioning auxiliary device and the conference terminal establish wireless communication connection through Bluetooth. Specifically, the bluetooth of the positioning auxiliary device seat is paired with the bluetooth of the conference terminal in a handshaking manner to establish connection. The receiving and transmitting communication distance of the Bluetooth is generally 8-15 meters, and the Bluetooth can sufficiently cover a conference station area and a general conference room. If a plurality of positioning auxiliary devices exist, Bluetooth handshake pairing needs to be carried out with the conference terminal one by one. Of course, the communication connection may also be established in other ways as needed, such as establishing a wired communication connection through a data line, establishing a wireless communication connection through WI FI, and so on.
And after the positioning auxiliary device establishes communication connection with the conference terminal, the conference terminal also performs camera corner positioning calibration operation according to needs. In general, when the system is used for the first time, the placement position or angle of the conference terminal changes, the position of the RFID tag changes, and the like, calibration operation is required. Therefore, in order to avoid the calibration operation every time of use, the position and angle at which the conference terminal is placed and the position of the electronic tag may be fixed.
For example, a user first selects a "camera rotation angle positioning calibration" function menu on the conference terminal, and enters a calibration mode. The rotary camera is generally controlled by a stepping motor, and the range of the rotation angle is generally not more than-180 degrees to +180 degrees. The numerical value of the motor-controlled step counter represents the corner of the camera, the positioning auxiliary device is placed at the position of the RFID electronic tag to be positioned, the conference terminal receives the identification code of the RFID electronic tag sent by the positioning auxiliary device and then stores the identification code, the conference terminal prompts a user to calibrate the corner of the camera, the user manually controls the rotary camera to align the position of the RFID electronic tag, the value of the motor step counter is correspondingly stored after the position is determined, and so on, the numerical values of the step counters of the corresponding corners of all the RFID electronic tags are stored, corner positioning parameters are generated, and the calibration mode is exited.
And S33, the positioning auxiliary device performs acceleration detection polling. It is determined whether the acceleration is detected as 0 n consecutive times, and if so, the process proceeds to step S34.
Specifically, the positioning assistance device performs acceleration detection polling through the acceleration sensor, and when the acceleration is continuously detected for n times (n > 2) and is 0, it indicates that the positioning assistance device is not moving currently and is in a stationary state. Of course, other ways known in the art may be used to determine the motion state of the positioning aid.
And S34, reading the RFID electronic tag by the positioning auxiliary device.
And S35, the positioning auxiliary device judges whether a human body approaches. When a human body approaches, the participant is explained to prepare for speaking, and the process goes to step S36; when no human body approaches and the acceleration is not equal to 0, namely the positioning auxiliary device moves, the RFID electronic tag is read again after the positioning auxiliary device is static (the acceleration is detected to be equal to 0 for n times continuously).
In this embodiment, be equipped with infrared proximity sensor in the auxiliary positioning device, detect whether there is the human body to be close to through infrared proximity sensor. Because the positioning auxiliary device is a microphone base, when a target is shot and recorded to speak, the head needs to be close to the microphone, when the head is close to the microphone, the infrared proximity sensor receives an infrared reflection signal, and when the infrared proximity sensor receives the infrared reflection signal, the fact that a human body is close to the positioning auxiliary device is judged, and the fact that the currently read participant corresponding to the RFID electronic tag speaks is explained.
In some embodiments, the positioning assistance device may also read the RFID tag only when it detects that the current state is still (acceleration equal to 0 is detected n consecutive times) and it detects that the participant is speaking (human body approaches), and the present invention does not limit this sequence.
And S36, the positioning auxiliary device sends the identification code of the RFID electronic tag to the conference terminal.
When the fact that a human body approaches and the participants are ready to talk is detected, the positioning auxiliary device sends the read identification code of the RFID electronic tag to the conference terminal through the Bluetooth.
And then detecting whether the human body leaves through an infrared proximity sensor, detecting whether the acceleration is not equal to 0 through an acceleration sensor when the human body leaves, and reading the RFID electronic tag again after the positioning auxiliary device is static (the acceleration is detected to be equal to 0 for n times continuously) if the acceleration is not equal to 0, which indicates that the positioning auxiliary device moves. When the acceleration is still equal to 0, the process returns to step S35 to determine whether a human body is approaching.
And S37, the conference terminal receives the identification code and controls the camera to automatically rotate to a corresponding angle according to the identification code to shoot.
Specifically, after receiving the identification code of the RFID electronic tag, the conference terminal queries the corner positioning parameter, controls the camera to automatically rotate to the angle corresponding to the identification code (or the RFID electronic tag corresponding to the identification code) to perform shooting, and if the conference terminal receives the identification codes of 2 (or more) RFID electronic tags at the same time, aligns to the position corresponding to the identification code received at the last time.
Further, in some embodiments, when the positioning assistance device fails to read the RFID tag in step S34, the positioning assistance device sends a positioning failure message to the conference terminal and returns to the acceleration detection state, and when the acceleration is detected to be not equal to 0, that is, the positioning assistance device moves, the positioning assistance device re-reads the RFID tag after it is stationary (the acceleration is detected to be equal to 0 n consecutive times). When the conference terminal receives the information of positioning failure, the conference terminal prompts the positioning failure and works according to a preset mode of the system, if the current state is kept unchanged.
Optionally, a camera control mode, namely an automatic positioning mode, may be added to the conference terminal, and when the user selects the automatic positioning mode, the conference terminal performs positioning shooting by using the method for implementing positioning shooting, and when the user selects another camera control mode, performs positioning shooting by using another mode. The user can select the camera control mode on the conference terminal before the conference starts, and can also switch the mode at any time in the working process.
In some embodiments, there may be more than one positioning aid, one for each participant. At this time, when one of the positioning auxiliary devices detects that the corresponding participant wants to talk (a human body approaches), the RFID tag is read, and the identification code of the RFID tag is sent to the conference terminal, so that the conference terminal controls the camera to turn to the participant for shooting.
In some embodiments, the positioning aid may also be disposed within the microphone.
According to the method for realizing positioning shooting and recording, the position and the angle of the speaker relative to the camera are accurately positioned through the detection of the RFID electronic tag in the conference site, so that the conference terminal automatically controls the camera to turn to the speaker for shooting, the speaker in the participants is automatically and accurately positioned and shot, the intelligentization level of the system is improved, and better conference experience and interaction effect are achieved.
Example four
Referring to fig. 5, a system for implementing positioning, shooting and recording according to a fourth embodiment of the present invention is provided, where the system includes one or at least two positioning assistance devices, and the positioning assistance devices are connected to the control terminal in a wired or wireless manner, for example, wirelessly connected via bluetooth, WIFI, etc., where:
positioning auxiliary device: and the electronic tag reading module is used for reading the electronic tag when a preset condition is met, acquiring the identification code of the electronic tag and sending the identification code to the control terminal in a wired or wireless communication mode. The electronic tags are arranged in the areas where the at least two shooting targets are located, wherein each shooting target corresponds to at least one electronic tag.
The positioning assistance apparatus may determine whether or not a preset condition is satisfied by:
alternatively, when the positioning assisting device detects the electronic tag, it is determined that the preset condition is satisfied. For example, only one positioning auxiliary device is provided, and in the moving process of each shooting target, once the positioning auxiliary device moves to an area where a certain shooting target is located, when an electronic tag is detected in the area, it is determined that a preset condition is met, and the electronic tag is read.
Optionally, when the positioning assistance device detects the electronic tag and detects that the positioning assistance device is in a static state, it is determined that the preset condition is satisfied. For example, there is only one positioning auxiliary device, the positioning auxiliary device moves among the shooting targets, when the electronic tag is detected in an area where a certain shooting target is located after the positioning auxiliary device moves to the area and stops moving and keeps still, it is determined that the preset condition is met, and the electronic tag is read. The mode can prevent the positioning auxiliary device from frequently reading the electronic tag in the moving process, so that the video recording device is frequently rotated, the stability of the system is improved, and the energy consumption is reduced.
Optionally, when the positioning assisting device detects the electronic tag, detects that the positioning assisting device is in a static state, and detects that the camera object corresponding to the electronic tag is speaking, it is determined that the preset condition is satisfied. For example, there is only one positioning auxiliary device, the positioning auxiliary device moves among the various recorded targets, when the positioning auxiliary device moves to an area where a certain recorded target is located and stops moving and keeps still, it is detected that there is an electronic tag in the area, and when it is detected that the recorded target is speaking, it is determined that a preset condition is satisfied, and the electronic tag is read. Because the main purpose of positioning and shooting the video and recording in the conference site is to shoot and record the speaker, the mode is more consistent with the application scene of the conference site, the frequent rotation of the video and recording device is avoided, the stability of the system is improved, and the energy consumption is reduced.
Optionally, when the positioning assisting device detects the electronic tag and detects that the camera object corresponding to the electronic tag is speaking, it is determined that the preset condition is satisfied. For example, each area where the recording target is located has a positioning auxiliary device and at least one electronic tag, and when one positioning auxiliary device detects that the recording target is speaking, it is determined that a preset condition is met, and the electronic tag is read. This applies primarily to the case of a plurality of positioning aids, but of course, this can also be used for the determination with only one positioning aid.
For the detection and determination of the stationary state, a sensor that can sense motion may be provided in the positioning assistance device, and whether the positioning assistance device is in the stationary state is detected and determined by the sensor. For example, the positioning assistance device detects acceleration by an acceleration sensor, and determines that the positioning assistance device is in a stationary state when the acceleration is detected n (n ≧ 2) consecutive times and is 0.
For the detection and judgment of whether the camera-recording target is speaking, the positioning auxiliary device can judge through detecting whether an object (such as a human body) approaches, and when the object approaches, the camera-recording target is judged to be speaking. For example, a proximity sensor (e.g., an infrared proximity sensor) may be provided in the positioning assistance device, and the proximity sensor may detect and determine whether an object is approaching. Because the positioning auxiliary device is arranged on the microphone or the microphone base, when a shooting target talks, the head needs to be close to the microphone, when the head is close to the microphone, the infrared proximity sensor can receive the infrared reflection signal, and when the infrared reflection signal is received, the positioning auxiliary device judges that the shooting target corresponding to the currently detected electronic tag talks. In addition, a light sensor can be arranged in the positioning auxiliary device, and the light can be shielded when a shooting target approaches, so that whether an object approaches can be detected and judged through the light sensor.
In addition, the positioning assistance device may also detect whether the camera object is speaking in other manners, for example, the positioning assistance device determines whether the corresponding microphone collects a sound signal, and determines that the camera object is speaking when the sound signal is collected, and so on.
The control terminal: the camera device is used for receiving the identification code, identifying the target electronic tag according to the identification code, acquiring the position of the target electronic tag, and controlling the camera device to turn to the position of the target electronic tag.
In the embodiment of the invention, the direction information, namely the information of the direction of each electronic tag, is stored in the control terminal in advance. After the control terminal receives the identification code, the electronic tag needing to be positioned, namely the target electronic tag, is identified according to the identification code, and then the azimuth information is inquired to obtain the azimuth of the target electronic tag.
After the control terminal acquires the position of the target electronic tag, the shooting device is controlled to rotate by a certain angle, the position of the target electronic tag is turned to, and the shooting target corresponding to the target electronic tag is aimed at for shooting. The recording may be shooting, recording only, or other recording methods. In the embodiment of the invention, the control terminal and the camera can be arranged together or separately and are connected for communication in a wired or wireless mode.
In specific implementation, before a conference begins or when the terminal is used for the first time, the control terminal calibrates the positions of the electronic tags and the rotation angle of the shooting and recording device, and after calibration is completed, the parameters can be stored on the terminal to facilitate next use. In order to avoid calibration operations each time the electronic tag is used, optionally, the position and angle at which the control terminal is placed may be fixed, and the position of the electronic tag may also be fixed, for example, by being attached to a table.
For example, a user first selects a "camera device corner positioning calibration" function menu on the control terminal, and enters a calibration mode. The camera device (such as a rotary camera) is generally controlled by a stepping motor, and the range of the rotation angle is generally not more than-180 degrees to +180 degrees. The method comprises the steps that the numerical value of a motor control step counter represents the corner of a shooting device, a positioning auxiliary device is placed at an electronic tag to be positioned, a control terminal receives an identification code of the electronic tag sent by the positioning auxiliary device and then stores the identification code, the control terminal prompts a user to calibrate the corner of a camera, the user manually controls a rotary shooting device to align the position of the electronic tag, the value of the motor step counter is correspondingly stored after the position is determined, and so on, the numerical values of the step counters of all the electronic tags corresponding to the corners are stored, corner positioning parameters are generated, and a calibration mode exits. In the working process, after the control terminal receives the identification codes of the electronic tags, the control terminal inquires corner positioning parameters and controls the shooting device to automatically rotate to a corresponding angle for shooting, and if the control terminal receives the identification codes of 2 electronic tags at the same time, the control terminal aligns to the position corresponding to the identification code received at the next time.
According to the system for realizing positioning shooting and recording, the electronic tag is arranged in the area where the shooting and recording target is located, the electronic tag is read by the positioning auxiliary device to realize accurate positioning of the shooting and recording target, and then the shooting and recording device is controlled by the control terminal to turn to the position where the read electronic tag is located to shoot and record the shooting and recording target, so that automatic and accurate positioning shooting and recording are realized. Especially, when being applied to the meeting scene, can locate microphone or microphone base with the auxiliary device of location, when the participant uses the microphone to speak, the camera just can be accurate turn to the speaker and fix a position the shooting. Therefore, the intelligent level of the system is improved, and the user experience is improved.
It should be noted that: the system for implementing positioning shooting and recording and the method for implementing positioning shooting and recording provided by the embodiment belong to the same concept, the specific implementation process is described in the method embodiment in detail, and the technical features in the method embodiment are correspondingly applicable in the system embodiment, and are not described again here.
EXAMPLE five
Referring to fig. 6, a positioning aid according to a fifth embodiment of the present invention is provided, and the positioning aid may be a new independent device or may be configured or integrated with an existing device. For example, it can be disposed in a microphone, so that the microphone has a positioning assistance function; or the positioning auxiliary device is arranged in the microphone base, so that the microphone base has a positioning auxiliary function. It is of course also conceivable to design the positioning aid as a microphone base, so that the positioning aid has the function of a base on which a microphone can be placed.
The positioning assistance device comprises a reading module and a sending module, wherein:
a reading module: and the electronic tag is used for reading the electronic tag and acquiring the identification code of the electronic tag when the preset condition is met. The electronic tags are arranged in the areas where the at least two shooting targets are located, wherein each shooting target corresponds to at least one electronic tag.
As shown in fig. 7, the reading module includes a judging unit and a reading unit. The judging unit is used for judging whether a preset condition is met or not; the reading unit is used for reading the electronic tag and acquiring the identification code of the electronic tag when the preset condition is met.
The judging unit may judge whether the preset condition is satisfied by:
optionally, when the electronic tag is detected, it is determined that the preset condition is satisfied. For example, only one positioning auxiliary device is provided, and in the moving process of each shooting target, once the positioning auxiliary device moves to an area where a certain shooting target is located, when an electronic tag is detected in the area, the positioning auxiliary device judges that a preset condition is met.
Optionally, when the electronic tag is detected and the positioning assistance device is detected to be in a static state, it is determined that the preset condition is met. For example, there is only one positioning auxiliary device, the positioning auxiliary device moves among the shooting targets, and when the electronic tag is detected in an area where a certain shooting target is located after the positioning auxiliary device moves to the area and stops moving and remains still, it is determined that the preset condition is met. The mode can prevent the positioning auxiliary device from frequently reading the electronic tag in the moving process, so that the video recording device is frequently rotated, the stability of the system is improved, and the energy consumption is reduced.
Optionally, when the electronic tag is detected, the positioning assisting device is detected to be in a static state, and a shooting target corresponding to the electronic tag is detected to be speaking, it is determined that the preset condition is met. For example, there is only one positioning auxiliary device, the positioning auxiliary device moves among the various recorded targets, when the positioning auxiliary device moves to an area where a certain recorded target is located and stops moving and keeps still, it is detected that an electronic tag is located in the area, and when it is detected that the recorded target is speaking, it is determined that a preset condition is met. Because the main purpose of positioning and shooting the video and recording in the conference site is to shoot and record the speaker, the mode is more consistent with the application scene of the conference site, the frequent rotation of the video and recording device is avoided, the stability of the system is improved, and the energy consumption is reduced.
Optionally, when the electronic tag is detected and the shooting target corresponding to the electronic tag is detected to be speaking, it is determined that the preset condition is met. For example, each area where the recording target is located has a positioning auxiliary device and at least one electronic tag, and when one positioning auxiliary device detects that the recording target is speaking, it is determined that the preset condition is met. This applies primarily to the case of a plurality of positioning aids, but of course, this can also be used for the determination with only one positioning aid.
For the detection and determination of the stationary state, a sensor that can sense motion may be provided in the positioning assist device, and the determination unit detects and determines whether the positioning assist device is in the stationary state by the sensor. For example, the determination unit detects acceleration by the acceleration sensor, and determines that the positioning assistance device is in a stationary state when the acceleration is detected n (n ≧ 2) consecutive times and is 0.
For the detection and judgment of whether the shooting target is speaking, the judgment unit can judge through detecting whether an object (such as a human body) approaches, and when the object approaches, the shooting target is judged to be speaking. For example, a proximity sensor (e.g., an infrared proximity sensor) may be provided in the positioning assistance device, and the determination unit may detect and determine whether an object is approaching by the proximity sensor. Because the positioning auxiliary device is arranged on the microphone or the microphone base, when a shooting target talks, the head needs to be close to the microphone, when the head is close to the microphone, the infrared proximity sensor can receive the infrared reflection signal, and when the infrared reflection signal is received, the judging unit judges that the shooting target corresponding to the currently detected electronic tag talks. In addition, a light sensor can be arranged in the positioning auxiliary device, and the shooting target can block light when approaching, so that the judgment unit can detect and judge whether an object approaches through the light sensor.
In addition, the determining unit may also detect whether the camera object is speaking in other manners, for example, the determining unit determines whether the corresponding microphone collects a sound signal, and when the sound signal is collected, determines that the camera object is speaking, and so on.
A sending module: for transmitting the identification code to the control terminal.
The positioning auxiliary device and the control terminal can be connected in a wired or wireless mode, for example, wireless connection such as bluetooth and WIFI can be achieved. And the sending module sends the acquired identification code to the control terminal in a wired or wireless communication mode.
In particular, the positioning aid may be constructed in the manner shown in fig. 8. As shown in fig. 8, the positioning assistance device includes a Microprocessor (MCU), an RFID reader circuit, an RFID antenna, a bluetooth circuit, a bluetooth antenna, an infrared proximity sensor, an acceleration sensor, and a power supply circuit. The RFID antenna is connected with the RFID reader circuit, the RFID reader circuit is connected with the microprocessor through a serial port, the Bluetooth circuit is respectively connected with the Bluetooth antenna and the microprocessor, the infrared proximity sensor and the acceleration sensor are connected with the microprocessor through an I2C interface, and the power supply circuit supplies power to the RFID reader circuit, the microprocessor, the Bluetooth circuit, the infrared proximity sensor and the acceleration sensor. The RFID antenna and the RFID reader circuit are used for reading the identification code of the RFID electronic tag; the Bluetooth antenna and the Bluetooth circuit are used for transmitting the identification code of the RFID electronic tag to the control terminal; the infrared proximity sensor is used for detecting whether a human body approaches; the acceleration sensor is used for detecting whether the positioning detection device moves or not. Currently, many wearable devices have processor chips that include a microprocessor and bluetooth circuitry, and thus such processor chips may be used directly.
The position detection device can be built in a microphone, but the application is limited due to the requirement of using a special microphone. Preferably, the positioning detection device can be arranged on the microphone base, a common wired or wireless microphone can be placed on the base to be used, the positioning detection is completed by the microphone base, the microphone base can be flexibly used in actual use, for example, when a participant needs to stand in front of the projection cloth to talk with the microphone, the microphone base can be placed on a conference table towards the direction of the projection cloth, and the control device controls the shooting device to shoot towards the direction of the projection cloth after receiving the identification code of the RFID electronic tag.
In some embodiments, the infrared proximity sensor or/and the acceleration sensor may also be omitted.
According to the positioning auxiliary device provided by the embodiment of the invention, the electronic tag arranged in the area where the shooting target is located is read, and the identification code of the electronic tag is sent to the control terminal, so that the shooting target is accurately positioned, and the control terminal can automatically and accurately control the shooting device to be aligned with the direction of the shooting target for positioning and shooting. Therefore, the intelligent level of the system is improved, and the user experience is improved.
It should be noted that: the system for implementing positioning shooting and recording and the method for implementing positioning shooting and recording provided by the embodiment belong to the same concept, the specific implementation process is described in the method embodiment in detail, and the technical features in the method embodiment are correspondingly applicable in the system embodiment, and are not described again here.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, a microphone base, or a network device) to execute the method according to the embodiments of the present invention.
The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, and are not to be construed as limiting the scope of the invention. Those skilled in the art can implement the invention in various modifications, such as features from one embodiment can be used in another embodiment to yield yet a further embodiment, without departing from the scope and spirit of the invention. Any modification, equivalent replacement and improvement made within the technical idea of using the present invention should be within the scope of the right of the present invention.
Claims (10)
1. A method for realizing positioning shooting and recording is characterized by comprising the following steps:
when a preset condition is met, the positioning auxiliary device reads the electronic tag, acquires an identification code of the electronic tag and sends the identification code to the control terminal;
the control terminal receives the identification code, identifies a target electronic tag according to the identification code, acquires the position of the target electronic tag, and controls the shooting device to turn to the position of the target electronic tag;
the electronic tags are arranged in the areas where the at least two shooting targets are located, wherein each shooting target corresponds to at least one electronic tag.
2. The method for implementing positioning videography as recited in claim 1, further comprising:
when the positioning auxiliary device detects the electronic tag, judging that the preset condition is met; or,
when the positioning auxiliary device detects the electronic tag and detects that the positioning auxiliary device is in a static state, judging that the preset condition is met; or,
when the positioning auxiliary device detects the electronic tag, detects that the positioning auxiliary device is in a static state and detects that a shooting target corresponding to the electronic tag speaks, judging that the preset condition is met; or,
and when the positioning auxiliary device detects the electronic tag and detects that the shooting target corresponding to the electronic tag is speaking, judging that the preset condition is met.
3. The method of enabling positional recording according to claim 2, further comprising:
and when the positioning auxiliary device detects that an object approaches, judging that the shooting target corresponding to the electronic tag talks.
4. The method for implementing positioning photography according to any one of claims 1 to 3, wherein the positioning aid is provided at a microphone or a microphone base.
5. A method for realizing positioning shooting and recording is applied to a positioning auxiliary device and is characterized by comprising the following steps:
when a preset condition is met, reading the electronic tag and acquiring an identification code of the electronic tag;
sending the identification code to a control terminal;
the electronic tags are arranged in the areas where the at least two shooting targets are located, wherein each shooting target corresponds to at least one electronic tag.
6. The method of enabling positional recording according to claim 5, further comprising:
when the electronic tag is detected, judging that the preset condition is met; or,
when the electronic tag is detected and the positioning auxiliary device is detected to be in a static state, judging that the preset condition is met; or,
when the electronic tag is detected, the positioning auxiliary device is detected to be in a static state, and a shooting target corresponding to the electronic tag is detected to be speaking, judging that the preset condition is met; or,
and when the electronic tag is detected and the shooting target corresponding to the electronic tag is detected to be speaking, judging that the preset condition is met.
7. The method of enabling positional recording according to claim 6, further comprising:
and when an object is detected to be close to the electronic tag, judging that the shooting target corresponding to the electronic tag is speaking.
8. A positioning assistance device, comprising:
the reading module is used for reading the electronic tag and acquiring the identification code of the electronic tag when a preset condition is met;
the sending module is used for sending the identification code to the control terminal;
the electronic tags are arranged in the areas where the at least two shooting targets are located, wherein each shooting target corresponds to at least one electronic tag.
9. The positioning assistance device according to claim 8, wherein the reading module comprises a determination unit configured to:
when the electronic tag is detected, judging that the preset condition is met; or,
when the electronic tag is detected and the positioning auxiliary device is detected to be in a static state, judging that the preset condition is met; or,
when the electronic tag is detected, the positioning auxiliary device is detected to be in a static state, and a shooting target corresponding to the electronic tag is detected to be speaking, judging that the preset condition is met; or,
and when the electronic tag is detected and the shooting target corresponding to the electronic tag is detected to be speaking, judging that the preset condition is met.
10. The positioning assistance device according to claim 9, wherein the determination unit is configured to: and when an object is detected to be close to the electronic tag, judging that the shooting target corresponding to the electronic tag is speaking.
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| CN201610831583.1A CN106371465A (en) | 2016-09-20 | 2016-09-20 | Method for realizing positioning photographing, and positioning auxiliary apparatus |
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| CN201610831583.1A CN106371465A (en) | 2016-09-20 | 2016-09-20 | Method for realizing positioning photographing, and positioning auxiliary apparatus |
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