CN205017430U - Device is shot to self -adaptation image - Google Patents
Device is shot to self -adaptation image Download PDFInfo
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- CN205017430U CN205017430U CN201520706752.XU CN201520706752U CN205017430U CN 205017430 U CN205017430 U CN 205017430U CN 201520706752 U CN201520706752 U CN 201520706752U CN 205017430 U CN205017430 U CN 205017430U
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- 238000004458 analytical method Methods 0.000 claims description 40
- 230000005540 biological transmission Effects 0.000 claims description 31
- 238000005096 rolling process Methods 0.000 claims description 8
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009123 feedback regulation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
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Abstract
The embodiment of the utility model discloses device is shot to self -adaptation image, wherein device is shot to self -adaptation image includes image acquisition unit, operation the control unit and drive unit, the image acquisition unit is used for according to the manual light ring of image acquisition unit light ring value continuous shooting of the lower time image in the locking at present, operation the control unit is used for the basis ambient brightness is confirmed to image acquisition unit continuous shooting's N two field picture, if ambient brightness is unsatisfied to predetermine threshold condition, just the light ring value of manual light ring allows to adjust, then is based on ambient brightness confirms the light ring value of manual light ring, drive unit be used for with manual iris setting and locking are in the operation light ring value that the control unit confirmed. The utility model discloses technical scheme can realize carrying out the self -adaptive control to ordinary manual light ring, guarantees the quality of taking a picture when can greatly reduce the frequent adjustment of light ring.
Description
Technical field
The utility model relates to acquisition technology field, is specifically related to a kind of adapting to image filming apparatus.
Background technology
For machine vision, illumination is a very important link in whole image capturing device, only ensure that effective illumination reliably, the original image that image acquisition units collects just can comprise enough information, for follow-up process provides enough contents and favourable condition.But for much special application scenarios, can not provide reliable and stable light source, and can there is change by a relatively large margin in the photoenvironment in the external world.
The camera and camera lens that automatically regulate aperture is commercially had although existing, but for needing the application of lasting statistical picture monochrome information, as foreground detection etc., need a sustained f-number, otherwise can information be brought to damage to practical application or even destroy application function, and for the accurate aperture camera lens of current up-to-date release, can click stop value, but it is expensive, need to use special camera can be with the use of, generally use as monitoring trade.
Using the camera lens of common manual adjustments aperture, but extraneous ambient lighting excursion is very large under all weather operations pattern, need the throughput regulating the control of diaphragm light, seem extremely important when a lot of open air utilizes natural daylight or can not increase special light source.
The utility model is the solution that the demand provides a kind of simple and reliable economy, can realize carrying out Automatic adjusument to common manual aperture.
Utility model content
In view of this, the utility model embodiment provides a kind of adapting to image filming apparatus, to realize carrying out adapting to image shooting to common manual aperture camera under all weather operations pattern.
The utility model embodiment is by the following technical solutions:
The utility model embodiment provides a kind of adapting to image filming apparatus, comprising:
Image acquisition units, Operations Analysis and driver element;
Described image acquisition units is used for according to continuously shot images when the manual iris of image acquisition units is under the f-number of Current lock;
Described Operations Analysis is used for the N two field picture determination ambient brightness taken continuously according to described image acquisition units, if described ambient brightness does not meet preset threshold condition, and the f-number of described manual iris allows to regulate, then determine the f-number of described manual iris according to described ambient brightness, wherein said N be more than or equal to 1 integer;
Described driver element is used for being adjusted by described manual iris and being locked in the determined f-number of described Operations Analysis.
Further, described device also comprises position-limiting unit, and whether described position-limiting unit reaches maximum spacing or minimum spacing for the state detecting described manual iris;
If when described Operations Analysis does not meet preset threshold condition specifically for described ambient brightness, determine the f-number of described manual iris according to the state of described manual iris and described ambient brightness.
Further, described driver element comprises power transmission shaft, stepping motor, aperture governor motion;
Stepping motor is coupled on power transmission shaft, and aperture governor motion is fixedly mounted on power transmission shaft, and aperture governor motion is fixed on the preset aperture ring of described image acquisition units;
Transmit on power transmission shaft when stepping motor rotates by power, send power transmission shaft band aperture governor motion to move, aperture will adjust thereupon.
Further:
Described aperture governor motion comprises driven gear 3, driving gear 6, aperture adjusting gear 10, propeller shaft pinion 11 and rolling bearing units 12;
Described position-limiting unit comprises aperture left limit position detecting switch 4 and aperture right limit position detecting switch 5;
Described device also comprises motor mount 7, retainer ring 9;
Stepping motor 8 is fixed on base plate by motor mount 7, driving gear 6 is fixedly mounted on the output shaft of stepping motor 8, driven gear 3 and propeller shaft pinion 11 are installed on power transmission shaft 2, power transmission shaft 2 two rolling bearing units 12 are fixed on base plate, and aperture adjusting gear (10) is fixed on the preset aperture ring of described image acquisition units by retainer ring 9;
When aperture adjusting gear 10 rotates, aperture will rotate thereupon, and the aperture left limit position detecting switch 4 of adjustable position and aperture right limit position detecting switch 5 are arranged on the below of described image acquisition units, for detecting the position of driven gear 3;
When stepping motor rotates, driving gear 6 drives driven gear 3, drives propeller shaft pinion 11 by power transmission shaft 2, and power is sent to aperture adjusting gear 10 by propeller shaft pinion 11.
Further, described Operations Analysis specifically for:
When described ambient brightness is less than the first default luminance threshold and the state that described position-limiting unit detects described manual iris does not reach maximum spacing, then determine the f-number tuning up described manual iris;
When described ambient brightness be greater than the second default luminance threshold and the state that described position-limiting unit detects described manual iris not reach most size spacing, then determine the f-number turning described manual iris down;
Wherein said first luminance threshold is less than described second luminance threshold.
Further, described Operations Analysis also for:
When described ambient brightness is less than the first default luminance threshold and the state that described position-limiting unit detects described manual iris reaches maximum spacing, then determine that the constant and shutter exposure time of described image acquisition units of the f-number of described manual iris extends; And
When described ambient brightness is greater than the second default luminance threshold and the state that described position-limiting unit detects described manual iris reaches minimum spacing, then determine that the constant and shutter exposure time of described image acquisition units of the f-number of described manual iris reduces;
The shutter exposure time of described image acquisition units is adjusted to determined shutter exposure time.
Further, described position-limiting unit is two position transducers, for detecting the flag bit of described driven gear 3.
The Advantageous Effects of the technical scheme that the utility model embodiment proposes is:
The technical scheme of the utility model embodiment is by providing a kind of adapting to image filming apparatus, control the rotation of drive unit drives aperture according to the mean flow rate at current location continuous acquisition N two field picture and automatically adjust aperture, to shoot image clearly, can realize carrying out Automatic adjusument to common manual aperture, there is general adaptability, can be cost-saving.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in the description of the utility model embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the content of the utility model embodiment and these accompanying drawings.
Fig. 1 is the adapting to image filming apparatus structural representation described in the utility model specific embodiment one;
Fig. 2 is the adapting to image filming apparatus structural representation described in the utility model specific embodiment two;
Fig. 3 is the adapting to image filming apparatus structural representation described in the utility model specific embodiment three.
Wherein, description of reference numerals is as follows:
101: image acquisition units;
102: Operations Analysis;
103: driver element;
104: position-limiting unit;
1011: manual iris;
1: camera;
2: power transmission shaft;
3: driven gear;
4: aperture left limit position detecting switch;
5: aperture right limit position detecting switch;
6: driving gear;
7: motor mount;
8: stepping motor;
9: retainer ring;
10: aperture adjusting gear;
11: propeller shaft pinion;
12: rolling bearing units.
Embodiment
The technical problem solved for making the utility model, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those skilled in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
Embodiment one
Fig. 1 is the adapting to image filming apparatus structural representation described in the utility model specific embodiment one, the present embodiment is applicable to the image acquisition units controlling to comprise common manual aperture carries out Automatic adjusument situation according to current environment, as shown in Figure 1, the adapting to image filming apparatus described in the present embodiment comprises:
Image acquisition units 101, Operations Analysis 102 and driver element 103;
Described image acquisition units 101 comprises manual iris 1011, described image acquisition units 101 for according to described manual iris 1011 under the f-number of Current lock time continuously shot images;
The N two field picture determination ambient brightness of described Operations Analysis 102 for taking continuously according to described image acquisition units 101, if described ambient brightness does not meet preset threshold condition, and the f-number of described manual iris allows to regulate, then determine the f-number of described manual iris according to described ambient brightness, wherein said N be more than or equal to 1 integer;
Described driver element 103 is for adjusting described manual iris 1011 and being locked in the determined f-number of described Operations Analysis 102.
Wherein, described Operations Analysis 102 can comprise according to the N two field picture determination ambient brightness of the continuous shooting of described image acquisition units 101: obtain the N two field picture taken continuously when time under the f-number of manual iris 1011 at Current lock, calculate the mean flow rate of described N two field picture, using described mean flow rate as ambient brightness.
Described Operations Analysis 102 regulates according to described ambient brightness determines that the f-number of described manual iris 1011 can be specially:
When described ambient brightness is less than the first default luminance threshold and the f-number of described manual iris 1011 allows to tune up, then described Operations Analysis 102 determines that the f-number of described manual iris 1011 tunes up, and described manual iris 1011 adjusts and under f-number after being locked in that described Operations Analysis 102 is determined and tuning up by described driver element 103.
When described ambient brightness is greater than default the second luminance threshold (being less than described the first default luminance threshold) and the f-number of described manual iris 1011 allows to turn down, then described Operations Analysis 102 determines that the f-number of described manual iris 1011 is turned down, and described manual iris 1011 adjusts and under f-number after being locked in that described Operations Analysis 102 is determined and turning down by described driver element 103.
At driver element 103 after adjusting and lock the f-number of described manual iris 1011, described image acquisition units 101 is continuously shot images when the f-number locking of described manual iris 1011.
When described Operations Analysis 102 judges that the mean flow rate of described N (being more than or equal to the natural number of 1) two field picture is less than the first luminance threshold, and the current location of described manual iris 1011 is not positioned at maximum, then controls described driver element 103 and drive described manual iris 1011 to rotate predetermined angle to the direction of opening aperture.
When described Operations Analysis 102 judges that the mean flow rate of described N two field picture is greater than the second luminance threshold (being greater than the first luminance threshold), and the current location of described manual iris 1011 is not positioned at minimum, then controls described driver element 103 and drive described manual iris 1011 to rotate predetermined angle to the direction closing aperture.
The mean flow rate showing described N two field picture when described comparative result is greater than the first luminance threshold and is less than the second luminance threshold, then described Operations Analysis 102 controls described driver element 103 and drives described manual iris 1011 to keep current location constant.
It should be noted that, the first luminance threshold described in the present embodiment and the second luminance threshold are the brightness value preset, these two luminance threshold are used for evaluating and testing the picture quality that image acquisition units 101 is taken under the present circumstances, using as the judgment basis whether tuning up the manual iris 1011 of image acquisition units 101 or turn down, the gray scale of the image that the concrete installation warrants image acquisition units 101 of these two luminance threshold gathers and the quality requirement of the image that image acquisition units 101 gathers is determined.Such as, if the image that described image acquisition units 101 gathers is 256 grades of gray level images, the first luminance threshold can be set to 80, the second luminance threshold is set to 150.
In addition, in the present embodiment, described rotation predetermined angle is the step angle controlling manual iris 1011 rotation, also be the angle value pre-set, can fixed value be set as, no matter namely manual iris 1011 is current be in which kind of aperture, the angle that each adjustment is identical, also can be set as not fixed value, i.e. the occurrence of each adjustment manual iris 1011, distinguish setting according to the difference of adjustment direction and/or current angular.
In addition, Operations Analysis 102 controls described driver element 103 and drives described manual iris 1011 to closing the direction of manual iris 1011 and can being set to equal angular to the predetermined angle of the angular turn opening manual iris 1011, also different angles can be set to, be preferably and both are set to identical numerical value, preferably described predetermined angle is set to 0.225 degree.
Adapting to image filming apparatus disclosed in the present embodiment proposes a kind of technical scheme of adapting to image filming apparatus, the image under current environment and f-number is gathered by image acquisition units, the quality of Operations Analysis analytical calculation image, produce the motion control signal of driver element, drive transmission regulates aperture size, finally realize the aperture Automatic adjusument under current environment, while greatly reducing the frequent adjustment of aperture, guarantee quality of taking pictures.
Embodiment two
For the adapting to image filming apparatus described in embodiment one, as a rule, manual iris 1011 adjustable range of camera lens is opened completely from being closed to completely, the rotatable scope of adjustable ring on camera lens is certain, just can not be rotated further after adjustment puts in place (this scope is about tens degree usually), in order to adapt to all camera lens manual iris 1011 adjustable ranges and degree of regulation, when regulating the f-number of described manual iris, the step-length of adjustment is preferably arranged to camera lens from N/mono-being closed to the angle opened completely completely, such can avoid regulating for each time be unlikely to the adjustment of manual iris 1011 to reach on the left of it or the extreme position on right side, manual iris 1011 can be avoided to be damaged by excessively regulating.
In order to automatically accurately judge whether the state of described manual iris 1011 reaches maximum spacing or minimum spacing, on the basis of embodiment one, described in the present embodiment, adapting to image filming apparatus also comprises position-limiting unit 104, adapting to image filming apparatus structured flowchart described in the present embodiment as shown in Figure 2, described position-limiting unit 104 is for judging whether the state of described manual iris 1011 reaches maximum spacing or minimum spacing, judged result is sent to described Operations Analysis 102, in this case, described Operations Analysis 102 is for determining the f-number of described manual iris 1011 according to the state of described manual iris 1011 and described ambient brightness.
Such as, described Operations Analysis 102 can be specifically for:
When described ambient brightness is less than the first default luminance threshold and the state that described position-limiting unit detects described manual iris does not reach maximum spacing, then determine the f-number tuning up described manual iris 1011;
When described ambient brightness be greater than the second default luminance threshold and described position-limiting unit to judge that the state of described manual iris 1011 does not reach most size spacing, then determine the f-number turning described manual iris 1011 down.
Further, described Operations Analysis 102 also for:
When described ambient brightness is less than the first default luminance threshold and the state that described position-limiting unit 104 detects described manual iris reaches maximum spacing, then determine that the constant and shutter exposure time of described image acquisition units 101 of the f-number of described manual iris 1011 extends; And
When described ambient brightness is greater than the second default luminance threshold and described position-limiting unit 104 judges that the state of described manual iris 1011 reaches minimum spacing, then determine that the constant and shutter exposure time of described image acquisition units 101 of the f-number of described manual iris 1011 reduces;
The shutter exposure time of described image acquisition units is adjusted to determined shutter exposure time.
The imaging moiety of the adapting to image filming apparatus described in the present embodiment refers to optical imagery, and imaging lens is manual iris.Drive transmission device by Motor execution parts, control the opening and closing degree of aperture, thus realize the control to light-inletting quantity, to reach the requirement of the brightness that automatically conforms.
Such as, in an execution mode, described driver element 103 comprises power transmission shaft, stepping motor, aperture governor motion;
Stepping motor is coupled on power transmission shaft, and aperture governor motion is fixedly mounted on power transmission shaft, and aperture governor motion is fixed on the preset aperture ring of described image acquisition units;
Transmit on power transmission shaft when stepping motor rotates by power, send power transmission shaft band aperture governor motion to move, aperture will rotate thereupon.
It should be noted that, mean flow rate for described N two field picture is less than the first luminance threshold, and the current location of described manual iris 1011 is positioned at maximum, and the mean flow rate of described N two field picture is greater than the second luminance threshold, and the current location of described manual iris 1011 is positioned at minimum situation, in order to point out operator in these cases, also can arrange as follows further:
When described Operations Analysis 102 judges that the mean flow rate of described N two field picture is less than the first luminance threshold, and the current location of described manual iris 1011 is positioned at maximum, or, when described Operations Analysis 102 judges that the mean flow rate of described N two field picture is greater than the second luminance threshold, and the current location of described manual iris 1011 is positioned at minimum, control the prompting of described image acquisition units 101 output abnormality situation by described Operations Analysis 102.
Or, in order to also high-quality picture can be photographed as far as possible in these cases, also by described Operations Analysis 102 control described image acquisition units 101 shutter adjustment the time for exposure take, comprising:
When described Operations Analysis 102 judges that the mean flow rate of described N two field picture is less than the first luminance threshold, and the current location of described manual iris 1011 is positioned at maximum, then control the shutter prolonging exposure time of described image acquisition units 101; Or,
When described Operations Analysis 102 judges that the mean flow rate of described N two field picture is greater than the second luminance threshold, and the current location of described manual iris 1011 is positioned at minimum, then the shutter controlling described image acquisition units 101 reduces the time for exposure.
Adapting to image filming apparatus disclosed in the present embodiment proposes a kind of technical scheme of adapting to image filming apparatus, the image under current environment and f-number is gathered by image acquisition units, the quality of Operations Analysis analytical calculation image, produce the motion control signal of driver element, drive transmission regulates aperture size, finally realizes the aperture Automatic adjusument under current environment.
Embodiment three
Fig. 3 is the adapting to image filming apparatus structural representation described in the utility model specific embodiment two, and the present embodiment, on the basis of embodiment one, discloses a kind of more concrete execution mode.
Particularly, the position-limiting unit 104 described in embodiment one is further defined to comprises aperture left limit position detecting switch 4 and aperture right limit position detecting switch 5; Described driver element 103 described in embodiment one is further defined to and comprises power transmission shaft 2, driven gear 3, driving gear 6, motor mount 7, stepping motor 8, retainer ring 9, aperture adjusting gear 10, propeller shaft pinion 11 and rolling bearing units 12.
Particularly, the adapting to image filming apparatus structure described in the present embodiment refers to Fig. 2, and as shown in Figure 2, the adapting to image filming apparatus described in the present embodiment comprises:
Camera 1, power transmission shaft 2, driven gear 3, aperture left limit position detecting switch 4, aperture right limit position detecting switch 5, driving gear 6, motor mount 7, stepping motor 8, retainer ring 9, aperture adjusting gear 10, propeller shaft pinion 11 and rolling bearing units 12;
Stepping motor 8 is fixed on base plate by motor mount 7, driving gear 6 is fixedly mounted on the output shaft of stepping motor 8, driven gear 3 and propeller shaft pinion 11 are installed on power transmission shaft 2, power transmission shaft 2 two rolling bearing units 12 are fixed on base plate, and aperture adjusting gear 10 is fixed on the preset aperture ring of described image acquisition units by retainer ring 9;
When aperture adjusting gear 10 rotates, aperture will rotate thereupon, and the aperture left limit position detecting switch 4 of adjustable position and aperture right limit position detecting switch 5 are arranged on the below of described image acquisition units, for detecting the position of driven gear 3;
When electric machine rotation, driving gear 6 drives driven gear 3, drives propeller shaft pinion 11 by power transmission shaft 2, and power is sent to aperture adjusting gear 10 by propeller shaft pinion 11.
Because aperture joint gear 10 is fixed on the preset aperture ring of camera lens, now with regard to achieving, the size of aperture is regulated.
The aperture adjustable range of the usual camera lens of this device is opened completely from being closed to completely, the rotatable scope of adjustable ring on camera lens is certain, just can not be rotated further after adjustment puts in place (this scope is about tens degree usually), in order to adapt to all lens aperture adjustable ranges and degree of regulation, transmission ratios between the active moving gear that motor exports and the gear finally driving aperture to regulate is designed to n:1, and namely motor often rotates n ° of diaphragm preselection ring and rotates 1 °.In the present embodiment, n is preferably 5.
Regulate aperture owing to being coordinated by twice gear, its gearratio n value range of choice is large, even can reach more than 10.Driven gear 3 is designed with a flag bit, this mark potential energy is found out by two position transducers, thus determines that the adjustment of aperture reaches on the left of it or the extreme position on right side.And under the effect of two driver, even if restart after image capturing device power-off, aperture also can be avoided to be damaged by excessively regulating.
In off-position, manual rotation aperture adjusting gear drives aperture to full open position, check the flag bit present position on now driven gear 3, and maximum position limit switch is adjusted to this position, limit switch is triggered in this position, and reset immediately aperture being turned down this limit switch, lock this limit switch; Then drive aperture to buttoned-up status manual rotation aperture adjusting gear, check the flag bit present position on now driven gear 3, and maximum position limit switch is adjusted to this position, limit switch is triggered in this position, and reset immediately aperture being tuned up this limit switch, lock this limit switch.
Complete the position adjustments configuration of limit sensors, what image capturing device can be safe carries out aperture Automatic adjusument.As preferentially, described position-limiting unit is two position transducers, for detecting the flag bit of described driven gear 3.
The Automatic adjusument step of aperture is as follows:
(1) at current location continuous acquisition N two field picture, in the utility model, N is preferably 5.
(2) the average brightness value k of the N two field picture of statistics gatherer,
wherein K
nrepresenting the mean flow rate of N two field picture, is the brightness average of all pixels of this two field picture.
(3) judge the relation between average brightness value k and luminance threshold, luminance threshold has two, is high brightness threshold k respectively
bwith low brightness threshold K
d.
When the gray value of general pattern is within the scope of certain, it is relatively good that the details of image retains, and characterization image is clear, for 256 grades of gray level images, the utility model embodiment this range preferably from 80 ~ 150, namely K
bbe preferably 150, K
dbe preferably 80.
If K
d≤ k≤K
b, show that the brightness of present image meets the requirements.
If k < is K
d, then show that present image is partially dark, f-number is less than normal.Following to judge whether current aperture position is positioned at maximum, if reached maximum, then needing to enter the time for exposure regulates, and the time for exposure controls imaging system by Operations Analysis and completes.Do not reach maximum ring then to control motor and rotate an angle [alpha] to the direction of continuing to open aperture, then repeat the 2nd step operation.In the utility model, α preferred value is 0.225 °.
If k > is K
b, then show that present image is partially bright, f-number is bigger than normal.Following to judge whether current aperture position is positioned at minimum, if reached minimum, then needing to enter the time for exposure regulates, and the time for exposure controls imaging system by Operations Analysis and completes.Do not reach minimum aperture then to control motor and rotate an angle [alpha] to continuing to close the direction of aperture, then repeat the 2nd step operation.
(4) for enter the time for exposure regulate, first judge current exposure time t and imaging system time for exposure region (t
min, t
max) compare, partially dark for image, if t+ Δ t is no more than t
max, then increase the time for exposure to t+ Δ t, and return the 2nd step, otherwise feedback regulation result, report environmental illumination condition is excessively dark, exceeds adjustable range.Partially bright for image, if t-Δ t is no more than t
min, then reduce the time for exposure to t-Δ t, and return the 2nd step, otherwise feedback regulation result, report environmental illumination condition is excessively bright, exceeds adjustable range.
The technical scheme of the present embodiment adjusts aperture automatically by controlling the rotation of drive unit drives aperture in the mean flow rate of current location continuous acquisition N two field picture, to shoot image clearly, can realize carrying out Automatic adjusument to common manual aperture, there is general adaptability, can be cost-saving.
Note, above are only preferred embodiment of the present utility model and institute's application technology principle.Skilled person in the art will appreciate that the utility model is not limited to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and protection range of the present utility model can not be departed from.Therefore, although be described in further detail the utility model by above embodiment, but the utility model is not limited only to above embodiment, when not departing from the utility model design, can also comprise other Equivalent embodiments more, and scope of the present utility model is determined by appended right.
Claims (6)
1. an adapting to image filming apparatus, is characterized in that, comprising:
Image acquisition units, Operations Analysis and driver element;
Described image acquisition units is used for according to continuously shot images when the manual iris of image acquisition units is under the f-number of Current lock;
Described Operations Analysis is used for the N two field picture determination ambient brightness taken continuously according to described image acquisition units, if described ambient brightness does not meet preset threshold condition, and the f-number of described manual iris allows to regulate, then determine the f-number of described manual iris according to described ambient brightness, wherein said N be more than or equal to 1 integer;
Described driver element is used for being adjusted by described manual iris and being locked in the determined f-number of described Operations Analysis.
2. adapting to image filming apparatus according to claim 1, is characterized in that, described device also comprises position-limiting unit, and whether described position-limiting unit reaches maximum spacing or minimum spacing for the state detecting described manual iris;
If when described Operations Analysis does not meet preset threshold condition specifically for described ambient brightness, determine the f-number of described manual iris according to the state of described manual iris and described ambient brightness.
3. adapting to image filming apparatus according to claim 2, is characterized in that, described driver element comprises power transmission shaft, stepping motor, aperture governor motion;
Stepping motor is coupled on power transmission shaft, and aperture governor motion is fixedly mounted on power transmission shaft, and aperture governor motion is fixed on the preset aperture ring of described image acquisition units;
Transmit on power transmission shaft when stepping motor rotates by power, send power transmission shaft band aperture governor motion to move, aperture will adjust thereupon.
4. adapting to image filming apparatus according to claim 3, is characterized in that:
Described aperture governor motion comprises driven gear (3), driving gear (6), aperture adjusting gear (10), propeller shaft pinion (11) and rolling bearing units (12);
Described position-limiting unit comprises aperture left limit position detecting switch (4) and aperture right limit position detecting switch (5);
Described device also comprises motor mount (7), retainer ring (9);
Stepping motor (8) is fixed on base plate by motor mount (7), driving gear (6) is fixedly mounted on the output shaft of stepping motor (8), driven gear (3) and propeller shaft pinion (11) are installed on power transmission shaft (2), power transmission shaft (2) is fixed on base plate with two rolling bearing units (12), and aperture adjusting gear (10) is fixed on the preset aperture ring of described image acquisition units by retainer ring (9);
When aperture adjusting gear (10) rotates, aperture will rotate thereupon, and the aperture left limit position detecting switch (4) of adjustable position and aperture right limit position detecting switch (5) are arranged on the below of described image acquisition units, for detecting the position of driven gear (3);
When stepping motor rotates, driving gear (6) drives driven gear (3), drive propeller shaft pinion (11) by power transmission shaft (2), power is sent to aperture adjusting gear (10) by propeller shaft pinion (11).
5. adapting to image filming apparatus according to claim 2, is characterized in that, described Operations Analysis specifically for:
When described ambient brightness is less than the first default luminance threshold and the state that described position-limiting unit detects described manual iris does not reach maximum spacing, then determine the f-number tuning up described manual iris;
When described ambient brightness be greater than the second default luminance threshold and the state that described position-limiting unit detects described manual iris not reach most size spacing, then determine the f-number turning described manual iris down;
Wherein said first luminance threshold is less than described second luminance threshold.
6. adapting to image filming apparatus according to claim 2, is characterized in that, described Operations Analysis also for:
When described ambient brightness is less than the first default luminance threshold and the state that described position-limiting unit detects described manual iris reaches maximum spacing, then determine that the constant and shutter exposure time of described image acquisition units of the f-number of described manual iris extends; And
When described ambient brightness is greater than the second default luminance threshold and the state that described position-limiting unit detects described manual iris reaches minimum spacing, then determine that the constant and shutter exposure time of described image acquisition units of the f-number of described manual iris reduces;
The shutter exposure time of described image acquisition units is adjusted to determined shutter exposure time.
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| CN201520706752.XU CN205017430U (en) | 2015-09-11 | 2015-09-11 | Device is shot to self -adaptation image |
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| CN201520706752.XU CN205017430U (en) | 2015-09-11 | 2015-09-11 | Device is shot to self -adaptation image |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106534660A (en) * | 2015-09-11 | 2017-03-22 | 深圳中集天达空港设备有限公司 | Self-adaptive image shooting method and self-adaptive image shooting device |
| CN111565283A (en) * | 2019-02-14 | 2020-08-21 | 初速度（苏州）科技有限公司 | Traffic light color identification method, correction method and device |
| WO2022226934A1 (en) * | 2021-04-29 | 2022-11-03 | 深圳市大疆创新科技有限公司 | System, method, and apparatus for controlling photographing apparatus |
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2015
- 2015-09-11 CN CN201520706752.XU patent/CN205017430U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106534660A (en) * | 2015-09-11 | 2017-03-22 | 深圳中集天达空港设备有限公司 | Self-adaptive image shooting method and self-adaptive image shooting device |
| CN106534660B (en) * | 2015-09-11 | 2023-04-28 | 深圳中集天达空港设备有限公司 | Self-adaptive image shooting method and device |
| CN111565283A (en) * | 2019-02-14 | 2020-08-21 | 初速度（苏州）科技有限公司 | Traffic light color identification method, correction method and device |
| WO2022226934A1 (en) * | 2021-04-29 | 2022-11-03 | 深圳市大疆创新科技有限公司 | System, method, and apparatus for controlling photographing apparatus |
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