CN105554363A - Method for laser-assisted automatic focusing, and apparatus - Google Patents
Method for laser-assisted automatic focusing, and apparatus Download PDFInfo
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- CN105554363A CN105554363A CN201510373152.0A CN201510373152A CN105554363A CN 105554363 A CN105554363 A CN 105554363A CN 201510373152 A CN201510373152 A CN 201510373152A CN 105554363 A CN105554363 A CN 105554363A
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Abstract
The embodiment of the invention discloses a method for laser-assisted automatic focusing. The method comprises: a laser-assisted focusing function starting instruction is received to activate a laser-assisted focusing function; a camera shooting instruction is received to start laser-assisted focusing; according to the focusing position of the camera, laser pulse transmitter and receiver are rotated and a low-intensity laser pulse is sent to the focusing position of the camera by the laser pulse transmitter; the laser pulse receiver receives the reflected low-intensity laser pulse, and a distance between an intelligent terminal and the focusing position of the camera is calculated according to time between sending the low-intensity laser pulse and receiving the low-intensity laser pulse; and according to the distance between the intelligent terminal and the focusing position of the camera, an image distance of the camera is set and focusing is carried out. According to the technical scheme provided by the embodiment of the invention, the laser pulse transmitter and receiver can be rotated according a focusing position needed by a user and laser-assisted automatic focusing at different focusing positions is supported, so that the automatic focusing precision of the intelligent terminal is improved and thus the user experience is improved.
Description
Technical field
The present invention relates to intelligent terminal field, particularly relate to a kind of method and device of laser assisted auto-focusing.
Background technology
Along with the popularization and application of mobile terminal, as the mobile devices such as mobile phone are indispensable in life, the various functions that mobile device adds are also more and more by everybody concern, and in daily life, intelligent terminal instead of the photography and vedio recording instrument of card camera as people substantially.
The auto-focusing of intelligent terminal is different with the auto-focusing of general camera, and it can not adjust photo-sensitive cell.Therefore the automatic focusing function of intelligent terminal, essence is by image-signal processor (ISP, ImageSignalProcessor) method for computing data, namely after view finder captures original image, this view data is used as firsthand information to be sent in ISP, ISP just can analyze initial data, the density variation in check image between adjacent pixels.If the focusing of original image is inaccurate, the picture element density so adjoined will be very close.ISP can adjust these pixels with a set of independent algorithm, and this adjustment process is reflected in intelligent terminal user eye, is auto-focus process.The signal processing algorithm that different intelligent terminal ISP modules adopts is different, and the quality of auto-focusing is also not quite similar certainly.
In current intelligent terminal Autofocus Technology, there is laser assisted Autofocus Technology, camera launches one taper laser beam in focus process in camera side laser transmitting-receiving window, and this laser is IR wavelength laser wave beam, and people's naked eyes are invisible.Distance afterwards between the intelligent terminal Time Calculation intelligent terminal that will reflect according to laser beam and shot object, locks focus rapidly according to shot object distance, then completes focusing.Intelligent terminal adopts the method for laser assisted focusing can simplify the signal processing of ISP, greatly improves the efficiency of focusing process.But the focusing position of laser assisted focusing is at present display screen center, the focusing of effective laser assisted cannot be realized when the focusing position that user needs is not center.
Summary of the invention
The embodiment of the invention discloses a kind of method and device of laser assisted auto-focusing, the focusing position rotary laser pulse transceiver that can need according to user, laser pulse is sent to described focusing position by described laser pulse reflector, realize the laser assisted auto-focusing supporting different focus position, improve the auto-focusing accuracy of intelligent terminal, thus improve Consumer's Experience.
Embodiment of the present invention first aspect provides a kind of method of laser assisted auto-focusing, comprising:
Receive laser assisted focus function open command, to activate laser assisted focus function;
Receive camera shooting instruction, to start laser assisted focusing;
According to the laser pulse transceiver of the focusing position rotary intelligent terminal built-in of camera, by the focusing position transmission low level laser pulse of described laser pulse reflector to described camera, to start laser assisted focusing;
The described low level laser pulse through reflection is received, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera by described laser pulse receiver;
The image distance of camera is set to the distance of the focusing position of described camera according to described intelligent terminal, and focuses.
In conjunction with first aspect, in the implementation that the first is possible, in described reception camera shooting instruction, after starting laser assisted focusing, before the described focusing position rotary laser pulse transceiver according to camera, described method also comprises:
Judge whether to receive a screen instruction;
If receive the instruction of described screen, determine the focusing position of described camera according to described screen position; Otherwise,
The focusing position of described camera is defined as the acquiescence focusing position preset or the focusing position of last time.
In conjunction with the first possible implementation of first aspect, in the implementation that the second is possible, the described focusing position determining described camera according to described screen position, comprising:
Camera display screen is divided into N × M some screen position, wherein, each described screen position correspondence a camera focusing position, N, M be more than or equal to 1 integer;
Described screen position is set to the focusing position of described camera.
In conjunction with first aspect, in the implementation that the third is possible, it is characterized in that, the described focusing position rotary laser pulse transceiver according to camera, comprising:
Horizontal rotation angle and the vertical rotation angle of described laser pulse transceiver is determined according to the focusing position of described camera;
Described laser pulse transceiver is rotated according to described horizontal rotation angle and vertical rotation angle.
In conjunction with first aspect, in the 4th kind of possible implementation, the image distance that camera to be set to the distance of the focusing position of described camera according to described camera lens described after focusing, described method also comprises:
Judge whether to receive and stop shooting instruction or start to take instruction;
Stop shooting instruction if do not receive or start to take instruction, again according to the focusing position rotary laser pulse transceiver of camera, sending low level laser pulse to shot object surface by laser pulse reflector, to start laser assisted focusing;
Stop shooting instruction if receive or start to take instruction, terminating laser assisted focusing, stop shooting or start to take pictures.
Embodiment of the present invention second aspect provides a kind of intelligent terminal, comprising:
Receiving element, for receiving laser assisted focus function open command, to activate laser assisted focus function;
Described receiving element also for, receive camera shooting instruction, with start laser assisted focusing;
Processing unit, for the laser pulse transceiver of the focusing position rotary intelligent terminal built-in according to camera, by the focusing position transmission low level laser pulse of described laser pulse reflector to described camera, to start laser assisted focusing;
Described processing unit also for, receive the described low level laser pulse through reflection by described laser pulse receiver, according to transmission with receive the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera;
Described processing unit also for, the image distance of camera is set to the distance of the focusing position of described camera according to described intelligent terminal, and focuses.
In conjunction with second aspect, in the implementation that the first is possible, described receiving element is also for the instruction of: acceptance point screen;
Described processing unit also for:
Judge whether described receiving element receives a screen instruction;
If described receiving element receives the instruction of described screen, determine the focusing position of described camera according to described screen position; Otherwise,
The focusing position of described camera is defined as the acquiescence focusing position preset or the focusing position of last time.
In conjunction with the first possible implementation of second aspect, in the implementation that the second is possible, described processing unit specifically for:
Camera display screen is divided into N × M some screen position, wherein, each described screen position correspondence a camera focusing position, N, M be more than or equal to 1 integer;
Described screen position is set to the focusing position of described camera.
In conjunction with second aspect, in the implementation that the third is possible, described processing unit specifically for:
Horizontal rotation angle and the vertical rotation angle of described laser pulse transceiver is determined according to the focusing position of described camera;
Described laser pulse transceiver is rotated according to described horizontal rotation angle and vertical rotation angle.
In conjunction with second aspect, in the 4th kind of possible implementation, described receiving element also for: receive and stop shooting instruction or start to take instruction;
Described processing unit also for:
Judge whether described receiving element receives stop shooting instruction or start to take instruction;
Stop shooting instruction if described receiving element does not receive or start to take instruction, again according to the focusing position rotary laser pulse transceiver of camera, low level laser pulse is sent to shot object surface, to start laser assisted focusing by laser pulse reflector;
Stop shooting instruction if described receiving element receives or start to take instruction, terminating laser assisted focusing, stop shooting or start to take pictures.
Laser pulse transceiver can be rotated to different angles according to the different focusing position of camera by the technical scheme that the embodiment of the present invention provides, by the focusing position transmission low level laser pulse of laser pulse reflector to described camera; Then the described low level laser pulse through reflection is received by laser pulse receiver, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of camera; The image distance of camera is set to the distance of the focusing position of described camera according to described intelligent terminal, thus realizes auto-focusing.The technical program can also determine the focusing position of camera according to the some screen position of user, when receiving the some screen instruction of user, the focusing position of camera is set as a screen position, otherwise the focusing position of camera is set to the focusing position of default location or last time, thus realizes the setting of focusing position.This method sends the focusing of shooting order fulfillment when can support that user is satisfied with focus effects, if proceed the focusing of above-mentioned laser assisted when user needs adjustment focusing position or is unsatisfied with focus effects.Visible, the technical scheme that the embodiment of the present invention proposes can realize the laser assisted auto-focusing of different focus position by rotary laser pulse transceiver, improve the auto-focusing accuracy of intelligent terminal, and adaptive laser assisted focusing process can be carried out according to the needs of user and satisfaction, thus meet user carries out laser assisted auto-focusing demand to plurality of positions, enhance Consumer's Experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the method for a kind of laser assisted auto-focusing that the embodiment of the present invention one provides;
Fig. 2 is the schematic diagram of a kind of laser assisted focusing mobile phone that the embodiment of the present invention one provides;
Fig. 3 is that the laser pulse transceiver that the embodiment of the present invention one provides rotates schematic diagram;
Fig. 4 is the schematic flow sheet of the method for the another kind of laser assisted auto-focusing that the embodiment of the present invention two provides;
Fig. 5-a is that the one point screen position that the embodiment of the present invention two provides divides schematic diagram;
Fig. 5-b is a kind of laser pulse position of rotation schematic diagram that the embodiment of the present invention two provides;
Fig. 5-c is the another kind of laser pulse position of rotation schematic diagram that the embodiment of the present invention two provides;
Fig. 6 is the schematic flow sheet of the method for another laser assisted auto-focusing that the embodiment of the present invention three provides;
Fig. 7 is the schematic diagram of a kind of intelligent terminal that the embodiment of the present invention four provides;
Fig. 8 is the schematic diagram of the another kind of intelligent terminal that the embodiment of the present invention five provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Below respectively each embodiment is described.
Term " first ", " second ", " the 3rd " and " the 4th " etc. in specification of the present invention and claims and above-mentioned accompanying drawing are for distinguishing different object, instead of for describing particular order.In addition, term " comprises " and " having " and their any distortion, and intention is to cover not exclusive comprising.Such as contain the process of series of steps or unit, method, system, product or equipment and be not defined in the step or unit listed, but also comprise the step or unit do not listed alternatively, or also comprise alternatively for other intrinsic step of these processes, method, product or equipment or unit.
Researcher in this field finds, current laser assisted Autofocus Technology can simplify the signal processing of ISP, greatly improve the efficiency of focusing process, but laser pulse transceiver can not rotate, focusing position is always display screen center, the focusing of effective laser assisted cannot be realized when the focusing position that user needs is not center, therefore when focusing position not centered by position time the accuracy of focusing lower.
The technical scheme that the present invention proposes can be used for the intelligent terminal that mobile phone, panel computer, notebook computer, palmtop PC, mobile internet device (MID, mobileinternetdevice) etc. have camera function.Embodiments provide a kind of method and device of laser assisted auto-focusing.In the method, first receive laser assisted focus function open command, to activate laser assisted focus function, receive camera shooting instruction, to start laser assisted focusing; Then, according to the focusing position rotary laser pulse transceiver of camera, by the focusing position transmission low level laser pulse of laser pulse reflector to described camera, the described low level laser pulse through reflection is received, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera by laser pulse receiver; Finally, the image distance of camera is set to the distance of the focusing position of described camera according to described intelligent terminal.
The schematic flow sheet of the method for a kind of laser assisted auto-focusing first provided for the embodiment of the present invention one see Fig. 1, Fig. 1.Wherein, as shown in Figure 1, a kind of method of laser assisted auto-focusing that the embodiment of the present invention one provides can comprise the following steps:
S101, reception laser assisted focus function open command, to activate laser assisted focus function.
Laser assisted focus function arranges instruction and is used for arranging intelligent terminal and whether opens laser assisted focus function, the laser assisted focus function that intelligent terminal receives user arranges instruction, if receive laser assisted focus function open command, then the laser assisted focus function of intelligent terminal is activated, and laser assisted will be used when taking pictures to focus; If what receive is the out code of laser assisted focus function, then the laser assisted focus function of intelligent terminal is deactivated, and takes pictures when focusing and still adopts traditional ISP image-signal processing method.Laser assisted focus function setting options are integrated in the middle of mobile phone camera software usually, also can be positioned in operating system arranges.The laser assisted focus function function of intelligent terminal can default setting be state of activation or default setting be deactivation status.
S102, reception camera shooting instruction, to start laser assisted focusing.
After the laser assisted automatic focusing function of intelligent terminal is activated, after receiving camera shooting instruction, laser assisted focus function just can start.User can send camera shooting instruction by button or touch control manner, such as, when user presses shutter or touching photographed screen, starts laser assisted focusing.
S103, laser pulse transceiver according to the focusing position rotary intelligent terminal built-in of camera, send low level laser pulse, to start laser assisted focusing by laser pulse reflector to the focusing position of described camera.
When intelligent terminal starts laser assisted to defocused, intelligent terminal can according to the focusing position rotary laser pulse transceiver of camera, sends low level laser pulse by laser pulse reflector to the focusing position of described camera.
Laser transmitting-receiving device is configured with in the intelligent terminal with laser assisted focus function, when starting to focus, one taper laser beam is launched to reference object from a laser transmitting-receiving window on camera side, this laser beam is received by laser transmitting-receiving window after the reflection of reference object again, distance afterwards between the intelligent terminal Time Calculation intelligent terminal that will reflect according to laser beam and shot object, lock focus rapidly according to shot object distance, then complete focusing.Fig. 2 is laser assisted focusing mobile phone schematic diagram, the mobile phone back side is provided with laser transmitting-receiving window, camera and a photoflash lamp as shown in Figure 2, and this laser transmitting-receiving window is exactly the position that laser pulse transceiver carries out Laser emission and laser pick-off when Mobile phone automatic focusing.
The technical scheme that the embodiment of the present invention proposes can according to the focusing position rotary laser pulse transceiver of camera.Before rotary laser pulse transceiver, intelligent terminal should determine the focusing position of camera, determine that the method for the focusing position of camera can be diversified, for example, the focusing position of camera can be set to fixed position, or the focusing position that instruction arranges camera is set according to the focusing of user.
In the execution mode that some are feasible, before rotary laser pulse transceiver, determine that the method for camera focusing position is, judge whether the some screen instruction receiving user; If receive the some screen instruction of user, determine the focusing position of camera according to a screen position; Otherwise, the focusing position of camera is defined as the acquiescence focusing position that presets or the focusing position of last time.In specific implementation, the camera display screen of intelligent terminal can be divided into N × M some screen position, such as, the horizontal direction of display screen be divided into N number of band of position, the vertical direction of display screen is divided into M the band of position, N, M be more than or equal to 1 integer.The focusing position of the corresponding camera in each screen band of position, when starting to focus, screen is clicked in the position that user can focus as required, and intelligent terminal determines focusing position according to the screen position clicked.
After the focusing position determining camera, intelligent terminal can according to this focusing position rotary laser pulse transceiver, sends low level laser pulse by laser pulse reflector to the focusing position of camera.Intelligent terminal can arrange different laser pulse device position of rotation to each focusing position.In the execution mode that some are feasible, intelligent terminal is horizontal rotation angle and the vertical rotation angle that each focusing position arranges different laser pulse devices, this horizontal rotation angle and vertical rotation angle are respectively with by specifying the horizontal rotation angle determined of focusing position and vertical rotation angle for benchmark, wherein, the horizontal rotation angle determined by this appointment focusing position and vertical rotation angle are 0 degree, specify focusing position can be default acquiescence focusing position or other focusing positions.Fig. 3 is that laser pulse transceiver rotates schematic diagram, and wherein, as shown in Figure 3, laser pulse transceiver is fixing on one substrate, and this substrate can level or vertical rotary, and horizontal rotation angle is
vertical rotation angle is θ, and laser pulse device position of rotation is used
mark.When after intelligent terminal determination focusing position, according to the position of rotation of the focusing position determination laser pulse transceiver of camera, i.e. horizontal rotation angle and vertical rotation angle, according to this horizontal rotation angle and vertical rotation angle rotary laser pulse transceiver, send low level laser pulse to make laser pulse reflector to the focusing position of camera.
S104, the low level laser pulse of being reflected by laser pulse receiver reception process, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera.
After intelligent terminal sends low level laser pulse by laser pulse reflector to the focusing position of camera, laser pulse is through the reflection of focusing position, reflect back into the laser pulse receiver of intelligent terminal, thus intelligent terminal according to transmission and can receive the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera.
S105, the image distance of camera is set to the distance of the focusing position of camera according to intelligent terminal, and focuses.
When after the distance of focusing position calculating intelligent terminal and camera, the image distance of camera is set according to this distance, the technical scheme support that the embodiment of the present invention proposes needs according to user the focusing carrying out different focusing positions, because different focusing positions is different from the distance of intelligent terminal, therefore the camera image distance under different focus position is also not quite similar, thus improves the accuracy of laser assisted focusing.
When after the image distance setting up camera, realize having focused with regard to removable camera lens, specifically, by by camera lens is locked voice coil motor to realize, voice coil motor is called for short (VCM), it mainly contains coil, group of magnets and shell fragment are formed, coil is fixed in group of magnets by upper and lower two shell fragments, when giving coil electricity, coil can produce magnetic field, coil magnetic field and magnetite group interact, coil can move up, and the camera lens be locked in coil just moves together, when power is off, coil returns under shell fragment elastic force, intelligent terminal makes motor promote camera lens by the image distance arranged, so just achieve auto-focusing.
In the execution mode that some are feasible, at intelligent terminal the image distance of camera to be set to the distance of the focusing position of camera according to intelligent terminal and after focusing, intelligent terminal can judge whether to receive termination shooting instruction that user sends or start to take instruction.If when user is unsatisfied with for focusing result or needs to adjust focusing position, can not send to intelligent terminal and stop shooting or start to take instruction, such as user can click screen again, intelligent terminal is again according to the focusing position of the click location determination camera of user, rotary laser pulse transceiver, low level laser pulse is sent to shot object surface, to restart laser assisted focusing by laser pulse reflector; Stop shooting instruction if can send to intelligent terminal when user abandons shooting or is satisfied with for focusing result or start to take instruction, to terminate laser assisted focus process, such as user can unclamp shutter key to stop shooting or to press shutter key to start shooting, and intelligent terminal for reception is taken instruction to termination or started to take instruction and just can stop shooting or start to take pictures.
Laser pulse transceiver can be rotated to different angles according to the different focusing position of camera by the technical scheme that the embodiment of the present invention one provides, by the focusing position transmission low level laser pulse of laser pulse reflector to described camera; Then the described low level laser pulse through reflection is received by laser pulse receiver, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of camera; The image distance of camera is set to the distance of the focusing position of described camera according to described intelligent terminal, thus realizes auto-focusing.The technical program can also determine the focusing position of camera according to the some screen position of user, when receiving the some screen instruction of user, the focusing position of camera is set as a screen position, otherwise the focusing position of camera is set to default acquiescence focusing position or the focusing position of last time, thus realizes the setting of focusing position.This method sends the focusing of shooting order fulfillment when can support that user is satisfied with focus effects, if proceed the focusing of above-mentioned laser assisted when user needs adjustment focusing position or is unsatisfied with focus effects.Visible, the technical scheme that the embodiment of the present invention proposes can realize the laser assisted auto-focusing of different focus position by rotary laser pulse transceiver, improve the auto-focusing accuracy of intelligent terminal, and adaptive laser assisted focusing process can be carried out according to the needs of user and satisfaction, thus meet user carries out laser assisted auto-focusing demand to plurality of positions, enhance Consumer's Experience.
For ease of better understanding and implement the such scheme of the embodiment of the present invention, the example concrete below in conjunction with some is described.
The embodiment two that the embodiment of the present invention proposes provides the method for another kind of laser assisted auto-focusing, the schematic flow sheet of the method for a kind of laser assisted auto-focusing provided for the embodiment of the present invention two see Fig. 4, Fig. 4.Wherein, as shown in Figure 4, the method for a kind of laser assisted auto-focusing that the embodiment of the present invention two provides, can comprise the following steps:
S201, reception laser assisted focus function open command, to activate laser assisted focus function.
Laser assisted focus function arranges instruction and is used for arranging intelligent terminal and whether opens laser assisted focus function, the laser assisted focus function that intelligent terminal receives user arranges instruction, if receive laser assisted focus function open command, then the laser assisted focus function of intelligent terminal is activated, and laser assisted will be used when taking pictures to focus; If what receive is the out code of laser assisted focus function, then the laser assisted focus function of intelligent terminal is deactivated, and takes pictures when focusing and still adopts traditional ISP image-signal processing method.
S202, reception camera shooting instruction, to start laser assisted focusing.
After the laser assisted automatic focusing function of intelligent terminal is activated, after receiving camera shooting instruction, laser assisted focus function just can start.User can send camera shooting instruction by button or touch control manner, such as, when user presses shutter or touching photographed screen, starts laser assisted focusing.
S203, judge whether to receive the some screen instruction of user.
The technical scheme that the embodiment of the present invention proposes can according to the focusing position rotary laser pulse transceiver of camera.Before rotary laser pulse transceiver, intelligent terminal should determine the focusing position of camera, determine that the method for the focusing position of camera can be diversified, for example, the focusing position of camera can be set to fixed position, or the focusing position that instruction arranges camera is set according to the focusing of user.
The embodiment of the present invention two proposes a kind of method determining camera focusing position, specifically, is the some screen instruction first judging whether to receive user; If receive the some screen instruction of user, determine the focusing position of camera according to a screen position; Otherwise, the focusing position of camera is defined as the acquiescence focusing position preset or the focusing position of last time.
If S204 receives the some screen instruction of user, determine the focusing position of camera according to a screen position.
When receiving the some screen instruction of user, intelligent terminal can determine the focusing position of camera according to a screen position.
The camera display screen of intelligent terminal can be divided into N × M some screen position, such as, the horizontal direction of display screen is divided into N number of band of position, the vertical direction of display screen is divided into M the band of position, N, M be more than or equal to 1 integer.The focusing position of the corresponding camera in each screen band of position, when starting to focus, screen is clicked in the position that user can focus as required, and intelligent terminal determines focusing position according to the screen position clicked.
For example, the camera display screen of intelligent terminal is divided into 3 × 3 some screen regions, divide schematic diagram as Fig. 5-a is depicted as a kind of some screen position, the horizontal direction of display screen and vertical direction are divided into respectively 3 bands of position, the focusing position of the corresponding camera in each region.Intelligent terminal is that each focusing position arranges different laser pulse device position of rotation, i.e. horizontal rotation angle
with vertical rotation angle θ, this horizontal rotation angle and vertical rotation angle are respectively with by specifying the horizontal rotation angle determined of focusing position and vertical rotation angle for benchmark, the horizontal rotation angle determined by this appointment focusing position and vertical rotation angle are 0 degree, and the laser pulse position of rotation of each focusing position is used
mark, as shown in Fig. 5-a.Intelligent terminal can preset the laser pulse position of rotation of each focusing position
such as, as shown in Fig. 5-b, by 3 × 3 laser pulse position of rotation
be set as (15 ° respectively,-15 °), (0 ° ,-15 °), (-15 ° ,-15 °), (15 °, 0 °), (0 °, 0 °), (-15 °, 0 °), (15 °, 15 °), (0 °, 15 °), (-15 °, 15 °), wherein region 4 is for specifying focusing position, namely
for specifying the laser pulse anglec of rotation of focusing position, the laser pulse position of rotation of other focusing positions with this position for benchmark.In specific implementation, the laser pulse position of rotation of each focusing position
can also adjust according to the scaling of photographic images, such as, photographic images be put when being twice, will
also corresponding expansion is twice, as shown in Fig. 5-c, during Nonlinear magnify one times, by 3 × 3 laser pulse position of rotation
be set as (30 ° respectively,-30 °), (0 °,-30 °), (-30 °,-30 °), (30 °, 0 °), (0 °, 0 °), (-30 °, 0 °), (30 °, 30 °), (0 °, 30 °), (-30 °, 30 °).
If S205 does not receive the some screen instruction of user, the focusing position of camera is defined as the acquiescence focusing position preset or the focusing position of last time.
When not receiving the some screen instruction of user, intelligent terminal can think that the focusing position required for user is acquiescence focusing position or the focusing position of last time, such as, if the acquiescence focusing position that intelligent terminal is preset is region 4, when not receiving the some screen instruction of user, intelligent terminal can think that the focusing position required for user is region 4, and the focusing position of camera is set as region 4.
S206, focusing position rotary laser pulse transceiver according to camera, send low level laser pulse, to start laser assisted focusing by laser pulse reflector to the focusing position of described camera.
After the focusing position determining camera, intelligent terminal can according to this focusing position rotary laser pulse transceiver, sends low level laser pulse by laser pulse reflector to the focusing position of camera.When after intelligent terminal determination focusing position, according to the position of rotation of the focusing position determination laser pulse transceiver of camera, i.e. horizontal rotation angle and vertical rotation angle, according to this horizontal rotation angle and vertical rotation angle rotary laser pulse transceiver, send low level laser pulse to make laser pulse reflector to the focusing position of camera.Such as, if determine, the focusing position of camera is the area 0 on display screen, and the laser pulse position of rotation of this focusing position is
according to the example of Fig. 5-b
,the laser pulse position of rotation of this focusing position is (15 ° ,-15 °), then according to this horizontal rotation angle and vertical rotation angle rotary laser pulse transceiver
.
S207, the low level laser pulse of being reflected by laser pulse receiver reception process, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera.
After intelligent terminal sends low level laser pulse by laser pulse reflector to the focusing position of camera, laser pulse is through the reflection of focusing position, reflect back into the laser pulse receiver of intelligent terminal, thus intelligent terminal according to transmission and can receive the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera.
S208, the image distance of camera is set to the distance of the focusing position of camera according to intelligent terminal, and focuses.
When after the distance of focusing position calculating intelligent terminal and camera, the image distance of camera is set according to this distance, the technical scheme support that the embodiment of the present invention proposes needs according to user the focusing carrying out different focusing positions, because different focusing positions is different from the distance of intelligent terminal, therefore the camera image distance under different focus position is also not quite similar, thus improves the accuracy of laser assisted focusing.
Laser pulse transceiver can be rotated to different angles according to the different focusing position of camera by the technical scheme that the embodiment of the present invention two provides, by the focusing position transmission low level laser pulse of laser pulse reflector to described camera; Then the described low level laser pulse through reflection is received by laser pulse receiver, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of camera; The image distance of camera is set to the distance of the focusing position of described camera according to described intelligent terminal, thus realizes auto-focusing.The technical program can also determine the focusing position of camera according to the some screen position of user, when receiving the some screen instruction of user, the focusing position of camera is set as a screen position, otherwise the focusing position of camera is set to default default location or the focusing position of last time, thus realizes the setting of focusing position.Visible, the technical scheme that the embodiment of the present invention proposes can realize the laser assisted auto-focusing of different focus position by rotary laser pulse transceiver, improve the auto-focusing accuracy of intelligent terminal, thus meet user carries out laser assisted auto-focusing demand to plurality of positions, enhance Consumer's Experience.
The embodiment three that the embodiment of the present invention proposes provides the method for another laser assisted auto-focusing, the schematic flow sheet of the method for a kind of laser assisted auto-focusing provided for the embodiment of the present invention three see Fig. 6, Fig. 6.Wherein, as shown in Figure 6, the method for a kind of laser assisted auto-focusing that the embodiment of the present invention three provides, can comprise the following steps:
S301, reception laser assisted focus function open command, to activate laser assisted focus function.
Laser assisted focus function arranges instruction and is used for arranging intelligent terminal and whether opens laser assisted focus function, if intelligent terminal receives laser assisted focus function open command, then laser assisted focus function is activated, and laser assisted will be used when taking pictures to focus.
S302, reception camera shooting instruction, to start laser assisted focusing.
After the laser assisted automatic focusing function of intelligent terminal is activated, user can send camera shooting instruction by button or touch control manner, such as, when user presses shutter or touching photographed screen, starts laser assisted focusing.
S303, judge whether to receive the some screen instruction of user.
When intelligent terminal starts laser assisted to defocused, judge whether the some screen instruction receiving user; If receive the some screen instruction of user, determine the focusing position of camera according to a screen position; Otherwise, the focusing position of camera is defined as the acquiescence focusing position preset or the focusing position of last time.
If S304 receives the some screen instruction of user, determine the focusing position of camera according to a screen position.
When receiving the some screen instruction of user, intelligent terminal can determine the focusing position of camera according to a screen position.
The camera display screen of intelligent terminal can be divided into N × M some screen position, such as, the horizontal direction of display screen is divided into N number of band of position, the vertical direction of display screen is divided into M the band of position, N, M be more than or equal to 1 integer.The focusing position of the corresponding camera in each screen band of position, when starting to focus, screen is clicked in the position that user can focus as required, and intelligent terminal determines focusing position according to the screen position clicked.
If S305 does not receive the some screen instruction of user, the focusing position of camera is defined as the acquiescence focusing position preset or the focusing position of last time.
When not receiving the some screen instruction of user, intelligent terminal can think that the focusing position required for user is acquiescence focusing position or the focusing position of last time, and this acquiescence focusing position is the fixing focusing position that intelligent terminal presets.
S306, focusing position rotary laser pulse transceiver according to camera, send low level laser pulse, to start laser assisted focusing by laser pulse reflector to the focusing position of described camera.
After the focusing position determining camera, intelligent terminal can according to this focusing position rotary laser pulse transceiver, sends low level laser pulse by laser pulse reflector to the focusing position of camera.In the technical scheme that the embodiment of the present invention proposes, when after intelligent terminal determination focusing position, according to the position of rotation of the focusing position determination laser pulse transceiver of camera
i.e. horizontal rotation angle
with vertical rotation angle θ, according to this horizontal rotation angle and vertical rotation angle rotary laser pulse transceiver, send low level laser pulse to make laser pulse reflector to the focusing position of camera.
S307, the low level laser pulse of being reflected by laser pulse receiver reception process, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera.
After intelligent terminal sends low level laser pulse by laser pulse reflector to the focusing position of camera, laser pulse is through the reflection of focusing position, reflect back into the laser pulse receiver of intelligent terminal, thus intelligent terminal according to transmission and can receive the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera.
S308, the image distance of camera is set to the distance of the focusing position of camera according to intelligent terminal, and focuses.
When after the distance of focusing position calculating intelligent terminal and camera, the image distance of camera is set according to this distance, the technical scheme support that the embodiment of the present invention proposes needs according to user the focusing carrying out different focusing positions, because different focusing positions is different from the distance of intelligent terminal, therefore the camera image distance under different focus position is also not quite similar, thus improves the accuracy of laser assisted focusing.
S309, judge whether to receive and stop shooting instruction or start to take instruction, stop shooting instruction if do not receive or start to take instruction, repeating step S303.
After focusing, user can determine whether again to focus according to the satisfaction of focusing.
If user for focusing result be unsatisfied with decision again focus time, can not send and stop shooting instruction or start to take instruction, stop shooting instruction if user determines can not send when reselecting focusing position or start to take instruction and sending point screen instruction.When intelligent terminal does not receive termination shooting instruction or starts to take instruction, focusing can be re-started to the focusing position of last time; When intelligent terminal do not receive stop shooting instruction or start to take instruction but to receive some screen instruction time, the focusing position of camera can be determined according to a screen position, new focusing position is focused; Namely intelligent terminal repeats step S303.
If when user is satisfied with for focusing result, can sends and start to take instruction, thus end focus process starts to take pictures.If when wishing to abandon shooting after user's focusing, can send and stop shooting instruction, thus terminate focus process and abandon taking pictures.
Stop shooting instruction if S310 receives or start to take instruction, terminating laser assisted focusing, stop shooting or start to take pictures.
If when user is satisfied with for focusing result, can sends and start to take instruction, intelligent terminal for reception starts to take pictures to terminating focus process after starting to take instruction.If when wishing to abandon shooting after user's focusing, can send and stop shooting instruction, terminate focus process after intelligent terminal for reception to termination shooting instruction and abandon taking pictures.
Laser pulse transceiver can be rotated to different angles according to the different focusing position of camera by the technical scheme that the embodiment of the present invention provides, by the focusing position transmission low level laser pulse of laser pulse reflector to described camera; Then the described low level laser pulse through reflection is received by laser pulse receiver, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of camera; The image distance of camera is set to the distance of the focusing position of described camera according to described intelligent terminal, thus realizes auto-focusing.The technical program can also determine the focusing position of camera according to the some screen position of user, when receiving the some screen instruction of user, the focusing position of camera is set as a screen position, otherwise the focusing position of camera is set to the focusing position of default location or last time, thus realizes the setting of focusing position.This method sends the focusing of shooting order fulfillment when can support that user is satisfied with focus effects, if proceed the focusing of above-mentioned laser assisted when user needs adjustment focusing position or is unsatisfied with focus effects.Visible, the technical scheme that the embodiment of the present invention proposes can realize the laser assisted auto-focusing of different focus position by rotary laser pulse transceiver, improve the auto-focusing accuracy of intelligent terminal, and adaptive laser assisted focusing process can be carried out according to the needs of user and satisfaction, thus meet user carries out laser assisted auto-focusing demand to plurality of positions, enhance Consumer's Experience.
The embodiment of the present invention four provides a kind of intelligent terminal, for realizing the laser-assisted Atomatic focusing method of one that the present invention proposes.See Fig. 7, described equipment a00 can comprise receiving element a10 and processing unit a20.
Receiving element a10 for receiving laser assisted focus function open command, to activate laser assisted focus function; Receiving element a10 also for receiving camera shooting instruction, focuses to start laser assisted.
Processing unit a20 is used for the laser pulse transceiver according to the focusing position rotary intelligent terminal built-in of camera, by the focusing position transmission low level laser pulse of described laser pulse reflector to described camera, to start laser assisted focusing;
Processing unit a20 is also for passing through the described low level laser pulse of reflecting, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera by described laser pulse receiver reception;
Processing unit a20 also for arranging the image distance of camera to the distance of the focusing position of described camera according to described intelligent terminal, and focuses.
In specific implementation, when startup laser assisted is to defocused, processing unit a20 can according to the focusing position rotary laser pulse transceiver of camera, sends low level laser pulse by laser pulse reflector to the focusing position of described camera.Laser transmitting-receiving device is configured with in the intelligent terminal with laser assisted focus function, when starting to focus, one taper laser beam is launched to reference object from a laser transmitting-receiving window on camera side, this laser beam is received by laser transmitting-receiving window after the reflection of reference object again, the post-processing unit a20 Time Calculation intelligent terminal that will reflect according to laser beam and shot object between distance, lock focus rapidly according to shot object distance, then complete focusing.
The focusing position of camera should be determined at the pretreatment unit a20 of rotary laser pulse transceiver.In the execution mode that some are feasible, determine that the method for camera focusing position is before rotary laser pulse transceiver, processing unit a20 judges whether the some screen instruction receiving user; If receiving element a10 receives the some screen instruction of user, processing unit a20 determines the focusing position of camera according to a screen position; Otherwise the focusing position of camera is defined as the acquiescence focusing position that presets or the focusing position of last time by processing unit a20.Such as, processing unit a20 the camera display screen of intelligent terminal can be divided into N × M some screen position, N, M be more than or equal to 1 integer.The focusing position of the corresponding camera in each screen band of position, when starting to focus, screen is clicked in the position that user can focus as required, and processing unit a20 determines focusing position according to the screen position clicked.
Processing unit a20 can be horizontal rotation angle and the vertical rotation angle that each focusing position arranges different laser pulse devices, and this horizontal rotation angle and vertical rotation angle are respectively with by specifying the horizontal rotation angle determined of focusing position and vertical rotation angle for benchmark.After processing unit a20 determines the focusing position of camera, can according to horizontal rotation angle corresponding to focusing position and vertical rotation angle rotary laser pulse transceiver, send low level laser pulse by laser pulse reflector to the focusing position of camera.
By laser pulse reflector to after the focusing position of camera sends low level laser pulse, laser pulse is through the reflection of focusing position, reflect back into the laser pulse receiver of intelligent terminal, thus processing unit a20 is according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera, the image distance of camera is set to the distance of the focusing position of camera according to intelligent terminal, and focuses.
In the execution mode that some are feasible, the image distance of camera to be set to the distance of the focusing position of camera according to intelligent terminal at processing unit a20 and after focusing, can to judge whether to receive termination shooting instruction that user sends or start to take instruction.If processing unit a20 is not subject to stopping shooting or starting to take instruction, processing unit a20 is again according to the focusing position of the click location determination camera of user, rotary laser pulse transceiver, low level laser pulse is sent to shot object surface, to restart laser assisted focusing by laser pulse reflector; Stop shooting instruction if processing unit a20 receives or start to take instruction, laser assisted focus process can be terminated.
Visible, the intelligent terminal that the embodiment of the present invention provides can realize the laser assisted auto-focusing of different focus position by rotary laser pulse transceiver, improve the accuracy of laser-assisted Atomatic focusing method, and adaptive laser assisted focusing process can be carried out according to the needs of user and satisfaction, thus meet user carries out laser assisted auto-focusing demand to plurality of positions, enhance Consumer's Experience.
The embodiment of the present invention five provides a kind of intelligent terminal, for realizing the method for a kind of laser-assisted auto-focusing that the present invention proposes.See Fig. 8, at least one memory b30 that described intelligent terminal b00 can comprise at least one bus b10, at least one processor b20 be connected with bus b10 and be connected with bus b20, wherein, processor b20 calls the technical scheme that the code in memory b30 proposes to realize the embodiment of the present invention.
Processor b20 calls code in memory b30 to receive laser assisted focus function open command, to activate laser assisted focus function; And receive camera shooting instruction, to start laser assisted focusing.Processor b20 triggers the laser pulse transceiver of rotary intelligent terminal built-in according to the focusing position of camera, by the focusing position transmission low level laser pulse of described laser pulse reflector to described camera, to start laser assisted focusing.Processor b20 calls the described low level laser pulse that the code in memory b30 is reflected to be received process by described laser pulse receiver, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera.Processor b20 arranges the image distance of camera to the distance of the focusing position of described camera according to described intelligent terminal, and focus.
The focusing position of camera should be obtained at the front processor b20 of rotary laser pulse transceiver.In the execution mode that some are feasible, before rotary laser pulse transceiver, determine that the method for camera focusing position is, judge whether the some screen instruction receiving user; If receive the some screen instruction of user, determine the focusing position of camera according to a screen position; Otherwise, the focusing position of camera is defined as the acquiescence focusing position that presets or the focusing position of last time.Such as, the camera display screen of intelligent terminal can be divided into N × M some screen position, N, M be more than or equal to 1 integer.The focusing position of the corresponding camera in each screen band of position, when starting to focus, screen is clicked in the position that user can focus as required, and processor b20 determines focusing position according to the screen position clicked.
Processor b20 can be implemented as horizontal rotation angle and the vertical rotation angle that each focusing position arranges different laser pulse devices, and this horizontal rotation angle and vertical rotation angle are respectively with by specifying the horizontal rotation angle determined of focusing position and vertical rotation angle for benchmark.After the focusing position obtaining camera, can according to horizontal rotation angle corresponding to focusing position and vertical rotation angle rotary laser pulse transceiver, send low level laser pulse by laser pulse reflector to the focusing position of camera.
By laser pulse reflector to after the focusing position of camera sends low level laser pulse, laser pulse is through the reflection of focusing position, reflect back into the laser pulse receiver of intelligent terminal, thus processor b20 is according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera, the image distance of camera is set to the distance of the focusing position of camera according to intelligent terminal, and focuses.
In the execution mode that some are feasible, after processor b20 to complete the image distance that arranges camera and focuses to the distance of the focusing position of camera according to intelligent terminal, can judge whether to receive termination shooting instruction that user sends or start to take instruction.If processor b20 judges not to be subject to stopping shooting or starting to take instruction, again according to the focusing position of the click location determination camera of user, rotary laser pulse transceiver, sends low level laser pulse to shot object surface by laser pulse reflector, to restart laser assisted focusing; Stop shooting instruction if processor b20 receives or start to take instruction, laser assisted focus process can be terminated.
Visible, the intelligent terminal that the embodiment of the present invention provides can realize the laser assisted auto-focusing of different focus position by rotary laser pulse transceiver, improve the accuracy of laser-assisted Atomatic focusing method, and adaptive laser assisted focusing process can be carried out according to the needs of user and satisfaction, thus meet user carries out laser assisted auto-focusing demand to plurality of positions, enhance Consumer's Experience.
One of ordinary skill in the art will appreciate that the possible implementation of various aspects of the present invention or various aspects can be embodied as system, method or computer program.In addition, the possible implementation of each aspect of the present invention or various aspects can adopt the form of computer program, and computer program refers to the computer readable program code be stored in computer-readable medium.
Computer-readable medium can be mechanized data medium or computer-readable recording medium.Computer-readable recording medium is including but not limited to electronics, magnetic, optics, electromagnetism, infrared or semiconductor system, equipment or device, or aforesaid appropriately combined arbitrarily, as random access memory (RAM), read-only memory (ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), optical fiber, portable read-only memory (CD-ROM).
Processor in computer reads the computer readable program code be stored in computer-readable medium, makes processor can perform the function action specified in the combination of each step or each step in flow charts; Generate the device implementing the function action specified in the combination of each block of block diagram or each piece.
Computer readable program code can perform completely on the computer of user, part performs on the computer of user, as independent software kit, part on the local computer of user and part on the remote computer, or to perform on remote computer or server completely.Also it should be noted that in some alternate embodiment, in flow charts in each step or block diagram each piece the function that indicates may not according to occurring in sequence of indicating in figure.Such as, depend on involved function, in fact two steps illustrated in succession or two blocks may be executed substantially concurrently, or these blocks sometimes may be performed by with reverse order.
In several embodiments that the application provides, should be understood that, disclosed device, the mode by other realizes.Such as, device embodiment described above is only schematic, the division of described functional unit, be only a kind of logic function to divide, other dividing mode may be had during specific implementation, such as multiple unit can be incorporated in same subsystem or module and realizes, or a unit is split into the realization of several unit, or some realization characters can be ignored or not perform.
Above a kind of method and apparatus of laser assisted auto-focusing disclosed in the embodiment of the present invention is described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a method for laser assisted auto-focusing, is characterized in that, described method comprises:
Receive laser assisted focus function open command, to activate laser assisted focus function;
Receive camera shooting instruction, to start laser assisted focusing;
According to the laser pulse transceiver of the focusing position rotary intelligent terminal built-in of camera, by the focusing position transmission low level laser pulse of described laser pulse reflector to described camera, to start laser assisted focusing;
The described low level laser pulse through reflection is received, according to sending and receiving the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera by described laser pulse receiver;
The image distance of camera is set to the distance of the focusing position of described camera according to described intelligent terminal, and focuses.
2. method according to claim 1, is characterized in that, in described reception camera shooting instruction, after starting laser assisted focusing, before the described focusing position rotary laser pulse transceiver according to camera, described method also comprises:
Judge whether to receive a screen instruction;
If receive the instruction of described screen, determine the focusing position of described camera according to described screen position; Otherwise,
The focusing position of described camera is defined as the acquiescence focusing position preset or the focusing position of last time.
3. method according to claim 2, is characterized in that, the described focusing position determining described camera according to described screen position, comprising:
Camera display screen is divided into N × M some screen position, wherein, each described screen position correspondence a camera focusing position, N, M be more than or equal to 1 integer;
Described screen position is set to the focusing position of described camera.
4. method according to claim 1, is characterized in that, the described focusing position rotary laser pulse transceiver according to camera, comprising:
Horizontal rotation angle and the vertical rotation angle of described laser pulse transceiver is determined according to the focusing position of described camera;
Described laser pulse transceiver is rotated according to described horizontal rotation angle and vertical rotation angle.
5. method according to claim 1, is characterized in that, the image distance arranging camera to the distance of the focusing position of described camera according to described camera lens described after focusing, described method also comprises:
Judge whether to receive and stop shooting instruction or start to take instruction;
Stop shooting instruction if do not receive or start to take instruction, again according to the focusing position rotary laser pulse transceiver of camera, sending low level laser pulse to shot object surface by laser pulse reflector, to start laser assisted focusing;
Stop shooting instruction if receive or start to take instruction, terminating laser assisted focusing, stop shooting or start to take pictures.
6. an intelligent terminal, is characterized in that, comprising:
Receiving element, for receiving laser assisted focus function open command, to activate laser assisted focus function;
Described receiving element also for, receive camera shooting instruction, with start laser assisted focusing;
Processing unit, for the laser pulse transceiver of the focusing position rotary intelligent terminal built-in according to camera, by the focusing position transmission low level laser pulse of described laser pulse reflector to described camera, to start laser assisted focusing;
Described processing unit also for, receive the described low level laser pulse through reflection by described laser pulse receiver, according to transmission with receive the distance of the Time Calculation intelligent terminal between described low level laser pulse to the focusing position of described camera;
Described processing unit also for, the image distance of camera is set to the distance of the focusing position of described camera according to described intelligent terminal, and focuses.
7. equipment according to claim 6, is characterized in that, described receiving element is also for the instruction of: acceptance point screen;
Described processing unit also for:
Judge whether described receiving element receives a screen instruction;
If described receiving element receives the instruction of described screen, determine the focusing position of described camera according to described screen position; Otherwise,
The focusing position of described camera is defined as the acquiescence focusing position preset or the focusing position of last time.
8. equipment according to claim 7, is characterized in that, described processing unit specifically for:
Camera display screen is divided into N × M some screen position, wherein, each described screen position correspondence a camera focusing position, N, M be more than or equal to 1 integer;
Described screen position is set to the focusing position of described camera.
9. method according to claim 6, is characterized in that, described processing unit specifically for:
Horizontal rotation angle and the vertical rotation angle of described laser pulse transceiver is determined according to the focusing position of described camera;
Described laser pulse transceiver is rotated according to described horizontal rotation angle and vertical rotation angle.
10. method according to claim 6, is characterized in that, described receiving element also for: receive and stop shooting instruction or start to take instruction;
Described processing unit also for:
Judge whether described receiving element receives stop shooting instruction or start to take instruction;
Stop shooting instruction if described receiving element does not receive or start to take instruction, again according to the focusing position rotary laser pulse transceiver of camera, low level laser pulse is sent to shot object surface, to start laser assisted focusing by laser pulse reflector;
Stop shooting instruction if described receiving element receives or start to take instruction, terminating laser assisted focusing, stop shooting or start to take pictures.
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