CN103384310A - Image acquisition device and image acquisition method - Google Patents
Image acquisition device and image acquisition method Download PDFInfo
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- CN103384310A CN103384310A CN2013102863769A CN201310286376A CN103384310A CN 103384310 A CN103384310 A CN 103384310A CN 2013102863769 A CN2013102863769 A CN 2013102863769A CN 201310286376 A CN201310286376 A CN 201310286376A CN 103384310 A CN103384310 A CN 103384310A
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Abstract
The invention discloses an image acquisition device which comprises an image acquisition unit, a processing unit and a storage unit. The image acquisition unit acquires an exposure image during exposure, the processing unit is electrically connected with the image acquisition unit and controls a display unit to display the exposure image acquired by the image acquisition unit during exposure, the storage unit is electrically connected with the processing unit, and the processing unit controls the storage unit to selectively store the exposure image displayed by the display unit.
Description
Technical field
The present invention has to relate to a kind of image capture unit and image acquisition method, particularly relates to image capture unit and the image acquisition method of the instant storage of image in a kind of energy preview exposure.
Background technology
Along with the evolution of camera technique, increasing camera does not carry out general snapshot only, stresses some more professional photograph skills simultaneously yet.For example, control voluntarily the time of shutter release, make the scene that is taken present different sensation.When for example taking the vehicle in starry sky, flowing water or city, by long exposure, can shoot fairshaped light and change, can allow the camera of simple irradiation scenery present the track of an object prolonged exercise.
Yet present stage is controlled the shooting skill of shutter release time, and for example B shutter or slow-speed shutter all can't be in the processes that shutter is opened, immediately present in exposure by the exposure result of photogra.Therefore, the user can only after B shutter or slow-speed shutter end exposure, browse captured exposed image.Therefore the user usually needs that same scene shot repeatedly or is repeatedly adjusted the time for exposure just can reach the exposure effect of expection.
Summary of the invention
Because the problem of above-mentioned existing skill, purpose of the present invention is providing a kind of image capture unit and image acquisition method with exactlying, with in the solution prior art can't shutter open during the problem of exposure result of instant preview object.
According to purpose of the present invention, a kind of image capture unit is proposed, comprise image acquisition unit, display unit, processing unit and memory cell.Image acquisition unit captures a plurality of exposed images between exposure period.Processing unit is electrically connected image acquisition unit and display unit, and processing unit is a plurality of exposed images of control display unit demonstration between exposure period.Memory cell is electrically connected processing unit, and via the control of processing unit, optionally stores a plurality of exposed images.
Preferably, image capture unit also can comprise setup unit between exposure period, in order to set time for exposure length.
Preferably, image capture unit also can comprise the first trigger switch, the second trigger switch and the 3rd trigger switch, when the first trigger switch is activated, to start between exposure period, when the second trigger switch is activated, to finish between exposure period and processing unit control store unit storage exposed image, and when the 3rd trigger switch is activated, processing unit control store unit storage exposed image.
Preferably, between exposure period, setup unit comprised between first period, the second phase and the third phase, and wherein first period is less than the second phase, and the second phase is less than between the third phase.
Preferably, when setup unit between exposure period during in the second phase, but the first trigger switch and the 3rd trigger switch are starting state, and the second trigger switch is can not starting state, and processing unit the second phase can control display the unit continue to show that a plurality of exposed images to the second phase finishes.
Preferably, when being set between the third phase between exposure period, but the first trigger switch and the second trigger switch are starting state, and switch is sent out for can not starting state by the 3rd place, and processing unit can control display the unit till the first trigger switch is activated a plurality of exposed image to the second trigger switches of rear lasting demonstration and is activated.
Preferably, image acquisition unit is when a plurality of image of cell stores, and the electric charge that image acquisition unit comprises can be cleared or not be cleared.
Preferably, when image acquisition unit was activated at the 3rd trigger switch, the electric charge that image acquisition unit comprises was not for being cleared.
According to another object of the present invention, a kind of image acquisition method is proposed, comprise the following step: a plurality of exposed images of acquisition between exposure period; Show a plurality of exposed images between exposure period; And optionally store a plurality of exposed images.
Preferably, before image acquisition method also can be included between exposure period and to finish, store a plurality of exposed images at least wherein one, and close shutter.
Preferably, image acquisition method also can be included between exposure period, does not empty to capture the electric charge of the image acquisition unit of a plurality of exposed images.
Preferably, image acquisition method also can be included between exposure period a plurality of images of storage at least wherein one, and close shutter when finishing between exposure period.
In sum, image capture unit of the present invention and image acquisition method can be between exposure periods, the exposed image that utilizes processing unit control display unit show image acquisition unit to capture.Therefore, the user can pass through immediately preview exposed image of display unit, and can immediately store the exposed image that reaches the desired exposure effect, because the time for exposure setting is bad, causes the problem of photo lithography poor effect in the minimizing prior art.
Description of drawings
Fig. 1 is the system block diagrams for the first embodiment of image capture unit of the present invention.
Fig. 2 is the system block diagrams for the second embodiment of image capture unit of the present invention.
Fig. 3 is the operational flowchart for the second embodiment of image capture unit of the present invention.
Fig. 4 is the flow chart of steps for an embodiment of image acquisition method of the present invention.
Embodiment
Please refer to Fig. 1, is the system block diagrams for the first embodiment of image capture unit of the present invention.As shown in the figure, image capture unit 1 comprises image acquisition unit 10, processing unit 20, memory cell 30 and display unit 40.Wherein, processing unit 20 is electrically connected image acquisition unit 10, memory cell 30 and display unit 40.
Image acquisition unit 10 can be sensitization coupling element (Charged-Coupled Device, CCD), CMOS (Complementary Metal Oxide Semiconductor) (Complementary Metal-Oxide-Semiconductor, CMOS) or other various image sensors.Processing unit 20 is electrically connected image acquisition units 10, in order to image acquisition unit 10 acquisitions to a plurality of exposed images be sent to memory cell 30 storages, or a plurality of exposed images of arriving of control display unit 40 show image acquisition units 10 acquisitions.
It is worth mentioning that, the processing unit 20 of the present embodiment is when a plurality of exposed image that processing image acquisition unit 10 is captured, but the every single exposure image data of doing of processing unit 20 setting of image acquisition units 10 is exported, just remove the exposed image information on image acquisition unit 10, or but every work of processing unit 20 setting of image acquisition units 10 keeps the exposed image information on image acquisition unit 10 at single exposure image data when output.More specifically, but processing unit 20 setting of image acquisition units 10 (as CCD or CMOS), finish the exposed image information output and just remove electric charge on CCD or CMOS, or the electric charge that processing unit 20 can be set on CCD or CMOS can not be eliminated after the exposed image information output.
Thus, be retained after image information output by the electric charge on processing unit 20 setting of image acquisition units 10, processing unit 20 is the exposed image summation that captured within a period of time of control display unit 40 instant playback image acquisition units 10 sustainably.For example, if the image capture unit of the present embodiment 1 is digital camera.When a target image 60 was carried out the shooting of time exposure, between the exposure period of digital camera, image acquisition unit 10 captured exposed image 70 sustainably between exposure period as the user.If the electric charge of image acquisition unit 10 is not eliminated after the exposed image information output, a plurality of exposed images 70 that processing unit 20 can control display unit 40 show image acquisition units 10 capture between exposure period.In this case, be 10 seconds if set between exposure period, the user see when the 5th second the exposed image that display unit 40 shows be between exposure period in the image summation of the 0th second to the 5th second.But not as limit, the time for exposure of the present invention can be 1～30 second.
The exposed image 70 of the present embodiment by immediately watching image acquisition unit 10 to be captured between exposure period, during the exposure effect wanted when the user is selected, processing unit 20 can be controlled optionally storage and display unit 40 shown exposed image 70 instantly of memory cell 30.
Further, image capture unit 1 also can comprise the first trigger switch 50, the second trigger switch 51 and the 3rd trigger switch 52, the first trigger switch 50, the second trigger switch 51 and the 3rd trigger switch 52 can be arranged at respectively target image 60 and image acquisition unit 10 between and be electrically connected to processing unit 20, whether can be sent on image acquisition unit 10 in order to the light of controlling target image 60 respectively.Wherein, when the first trigger switch 50 is activated, be between the beginning exposure period.If when the second trigger switch 51 is activated, finish between exposure period, this moment, processing unit 20 can be controlled memory cell 30 storages via the exposed image 70 that exposes between exposure period.
In addition, if between exposure period, when the 3rd trigger switch 52 was activated, processing unit 20 can be controlled the exposed image 70 that memory cell 30 storages are exposed between 52 starting periods by the first trigger switch 50 to the 3rd trigger switches.No matter be noted that between exposure period at this and closed or autoshutdown by the second trigger switch 51, when processing unit 20 all can finish between exposure period, control store unit 30 storages were via the exposed image 70 that exposes between exposure period.
Then please refer to Fig. 1 to Fig. 2, Fig. 2 is the system block diagrams for the second embodiment of image capture unit of the present invention.As shown in the figure, each element start of the image capture unit 2 of the present embodiment, its to above-mentioned the first example in the described similar elements of image capture unit to make flowing mode similar, therefore do not give unnecessary details at this.So, it is worth mentioning that, in the present embodiment, image capture unit 2 can comprise setup unit 200 between image acquisition unit 110, processing unit 120, display unit 130, memory cell 140, the first trigger switch 150, the second trigger switch 151 and the 3rd trigger switch 152, the digital converting unit 180 of analogy, set of lenses 190 and exposure period.Wherein, analogy digital efm 180 be electrically connected at image acquisition unit 110 and processing unit 120 between.In addition, processing unit 120 also is electrically connected setup unit 200 between memory cell 130, display unit 140, set of lenses 190, the first trigger switch 150, the second trigger switch 151, the 3rd trigger switch 152 and exposure period.Wherein, set of lenses 100 can be controlled by processing unit 120, with the image focusing of automatically wish being taken.
The image capture unit 2 of the present embodiment can be digital camera or has the hand-hold electronic device of camera function, but not as limit.Image acquisition unit 110 can be sensitization coupling element (Charged-Coupled Device, CCD), CMOS (Complementary Metal Oxide Semiconductor) (Complementary Metal-Oxide-Semiconductor, CMOS) or other various image sensors.
The digital converting unit 180 of analogy is electrically connected image acquisition unit 110, is converted to digital signal in order to the signal of video signal that image acquisition unit 110 is captured.It is worth mentioning that, when the image acquisition unit 110 of the present embodiment can be set an image data output of every do for, just remove the image information on image acquisition unit 110; Or can set the output of image data of every work for the time, keep the image information on image acquisition unit 110.
Between exposure period of the present invention, setup unit 200 is used for setting time for exposure length.Wherein, time for exposure length comprised between first period, the second phase and the third phase, and first period is less than the second phase, and the second phase is less than between the third phase.
Furthermore, when time for exposure length during in the second phase, but the first trigger switch 50 and the 3rd trigger switch 52 are starting state, and the second trigger switch 51 is can not starting state, and processing unit 120 the second phase can control display unit 140 continue to show that a plurality of exposed images 170 to the second phases finish.
And, when the time for exposure, length was between the third phase, but the first trigger switch 50 and the second trigger switch 51 are starting state, and the 3rd trigger switch 52 is can not starting state, and processing unit 120 can control display unit 140 till the first trigger switch 50 is activated a plurality of exposed image 170 to second trigger switches 51 of rear lasting demonstration and is activated.
More specifically, image acquisition unit 110 (as CCD or CMOS) can be set for and finish image information output and just remove electric charge on CCD or CMOS, or the electric charge that can set on CCD or CMOS can not be eliminated after image information output.
Thus, be retained after the exposed image information output by the electric charge on setting of image acquisition unit 110, processing unit 120 is the exposed image summation that captured within a period of time of control display unit 140 instant playback image acquisition units 110 sustainably.For example, if the image capture unit of the present embodiment 2 is digital camera.When a target image 160 was carried out the shooting of time exposure, between the exposure period of digital camera, image acquisition unit 110 captured exposed image 170 sustainably between exposure period as the user.If the electric charge of image acquisition unit 110 is not eliminated after image information output, the exposed image 170 that processing unit 120 can control display unit 140 show image acquisition units 110 capture between this exposure period.In this case, be 10 seconds if set between exposure period, the user see when the 5th second the exposed image that display unit 140 shows be between exposure period in the exposed image summation of the 0th second to the 5th second.
Then, please in the lump with reference to figure 2 and Fig. 3, Fig. 3 is the operational flowchart for the second embodiment of image capture unit of the present invention.As shown in the figure,, can preset time for exposure length (as between first period, the second phase or the third phase) and target image 160 is taken via setup unit between exposure period 200 when 2 pairs of target images 160 of the image capture unit that utilizes the present embodiment are taken as the user.In the present embodiment, first period can be general screening-mode S11, and the second phase can be slow-speed shutter Mode S 12, and can be B shutter mode S13 between the third phase.Wherein, B shutter mode S13 refers to the time for exposure of manual manipulation camera, and it is a scheduled time that 12 of slow-speed shutter Mode S refer to set the time for exposure, for example setting the time for exposure is 30 seconds, be the autoshutdown shutter after 30 seconds, the scheduled time can be 1～30 second, but not as limit.And, the identical triggering state of same shutter is in different time for exposure length (as between first period, the second phase or the third phase), have different feature paths, for example start the first trigger switch 50, start the second trigger switch 51 or start the 3rd trigger switch 52, therefore, the present invention can by under different time for exposure length, utilize shutter release button to switch the first trigger switch 50, the second trigger switch 51 or the 3rd trigger switch 52.
At first, first so that target image 160 is carried out B shutter mode S13 as example.The present embodiment starts between exposure period by starting the first trigger switch 51, processing unit 120 is between exposure period, control display unit 140 show image acquisition units 110 show the exposed image 170 of corresponding target image 160, can make the user be able at the display unit 140 previews exposed image that image acquisition unit 110 captures between exposure period.
Be applied in practical operation, the user can further select to open exposure preview function S21 after determining to use B shutter mode S13.Under the situation of opening exposure preview function S21, press shutter and start the first trigger switch 51, carry out shutter and discharge S31, namely start between exposure period.At this moment, processing unit 120 can be controlled exposure that display unit 140 shows the current target images of taking 160 S41 as a result.When the exposure result of target image 160 arrives the state of user's expection, can press again shutter to start the second trigger switch 51, close shutter and discharge S61, namely close between exposure period, and carry out step S71: the exposed image 170 between the storage exposure period is to memory cell 130.
In addition, if after the user determines to use slow-speed shutter Mode S 12, can further select to open exposure preview function S21 or open exposure continuous shooting function S22.If select to open exposure preview function S21, carry out S21 to the operating process of S51.If select to open exposure continuous shooting function S22, press shutter and start the first trigger switch 50, carry out shutter and discharge S32, namely start between exposure period.At this moment, processing unit 120 can be controlled exposure that display unit 140 shows the current target images of taking 160 S42 as a result, and by often starting the 3rd trigger switch 52 by a shutter, can carry out step S52 and store the exposed image 170 of current institute preview to memory cell 130.It should be noted that shutter can't start the second trigger switch 51, and closes shutter slow-speed shutter Mode S 12 times.And display unit 140 can continue to show the exposure result of the current target image of taking 160, until after having spent a scheduled time, shutter is autoshutdown S62, and carries out step S71: the exposed image 170 between the storage exposure period is to memory cell 130.
When this is noted that exposure that the present invention wants filmed image in preview as a result, can take just current exposure result to be presented on display unit in every 1 second or every 0.5 second.Thus, the exposed image 170 that is presented on display unit 140 can be kept higher resolution.
Except B shutter mode S13 and slow-speed shutter Mode S 12, the present embodiment also can carry out general screening-mode S11, namely press shutter and start the first trigger switch 50, carry out shutter and discharge S33, namely start between exposure period, follow shutter autoshutdown S62, and carry out step S71: store the exposed image 170 of current institute preview to memory cell 130.
Then please refer to Fig. 4, be the flow chart of steps for an embodiment of image acquisition method of the present invention, and see also Fig. 1 to Fig. 3.As shown in the figure, at first carry out step S110: utilize image acquisition unit to capture exposed image between exposure period.Then, carry out step S111: utilize the processing unit exposed image that control display unit show image acquisition unit captures between exposure period.Then, carry out step S112: utilize the shown exposed image of memory cell selecting ground storage and display unit.Thus, by image acquisition method of the present invention, the user can transmission display the unit watch the present instant exposure result of wanting filmed image, and the exposed image that selection institute wish is stored is stored to memory cell.
Furthermore, image acquisition method of the present invention preferably also can comprise step S113: before finishing between exposure period, store a plurality of exposed images at least wherein one, and close shutter.Namely, when image capture unit of the present invention is in B shutter mode S13, in between exposure period, processing unit 120 can be controlled the exposure result that display unit 140 shows the current target image of taking 160, and when the exposure result of target image 160 arrives the state of user's expection, can press again shutter to start the second trigger switch 51, namely close S61 between exposure period, and the exposed image 170 of storage between exposure period be to memory cell 130, and close shutter.
Moreover in step S113, but the electric charge on processing unit 20 setting of image acquisition units 10 (as CCD or CMOS) can not be eliminated after the exposed image information output.
In addition, image acquisition method of the present invention preferably also can comprise step S114: between exposure period a plurality of images of storage at least wherein one, and close shutter when finishing between exposure period.that is to say, when image capture unit of the present invention is in slow-speed shutter Mode S 12, processing unit 120 can be controlled the exposure result that display unit 140 shows the current target image of taking 160, and by often starting the 3rd trigger switch 52 by a shutter, can store the exposed image 170 of current institute preview to memory cell 130, and display unit 140 also can continue to show the exposure result of the current target image of taking 160, until after having spent a scheduled time, shutter is autoshutdown, and store exposed image 170 between exposure period to memory cell 130.
Thus, the user is by image acquisition method of the present invention, though can ground the exposure result of the image taken of preview institute wish, when seeing that the exposure liked is as a result, just press shutter and immediately store.
In sum, image capture unit of the present invention and image acquisition method, can by processing unit control display unit immediately show want the exposure result of filmed image, make user's preview exposed image in advance, then determine to want to be filmed and to be stored in memory cell.Therefore, by image capture unit of the present invention and image acquisition method, when user's wish is taken when needing the image effect of time exposure, for example when star rail or current waterfall, can easy time for exposure Selective storage photo in office.Thus, can reduce the bad situation of effect that causes taking pictures because selecting the wrong time for exposure.
The above is only illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should be contained in appending claims.
Claims (12)
1. an image capture unit, is characterized in that, comprises:
Image acquisition unit, a plurality of exposed images of acquisition between exposure period;
Display unit;
Processing unit is electrically connected described image acquisition unit and described display unit, and described processing unit is controlled described display unit and shown described a plurality of exposed images between described exposure period; And
Memory cell is electrically connected described processing unit, and via the control of described processing unit, optionally stores described a plurality of exposed image.
2. image capture unit as claimed in claim 1, is characterized in that, also comprises setup unit between exposure period, in order to set time for exposure length.
3. image capture unit as claimed in claim 2, it is characterized in that, also comprise the first trigger switch, the second trigger switch and the 3rd trigger switch, when described the first trigger switch is activated, being to start between described exposure period, when described the second trigger switch is activated, is to finish between described exposure period and the described cell stores exposed image of described processing unit control, and when described the 3rd trigger switch was activated, described processing unit was controlled described cell stores exposed image.
4. image capture unit as claimed in claim 3, is characterized in that, described time for exposure length comprised between first period, the second phase and the third phase, and wherein said first period is less than the described second phase, and the described second phase is less than between the described third phase.
5. image capture unit as claimed in claim 4, it is characterized in that, when described time for exposure length during in the described second phase, but described the first trigger switch and described the 3rd trigger switch are starting state, and described the second trigger switch is can not starting state, and described processing unit can be controlled described display unit in the described second phase and continues to show that described a plurality of exposed images to the described second phase finishes.
6. image capture unit as claimed in claim 4, it is characterized in that, when described time for exposure length is between the described third phase, but described the first trigger switch and described the second trigger switch are starting state, and switch is sent out for can not starting state by described the 3rd place, and described processing unit can be controlled described display unit till described the first trigger switch is activated the described a plurality of exposed images of rear lasting demonstration to described the second trigger switch and is activated.
7. image capture unit as claimed in claim 4, is characterized in that, described image acquisition unit is when the described a plurality of image of described cell stores, and the electric charge that described image acquisition unit comprises can be cleared or not be cleared.
8. image capture unit as claimed in claim 7, is characterized in that, when described image acquisition unit was activated at described the 3rd trigger switch, the electric charge that described image acquisition unit comprises was not for being cleared.
9. an image acquisition method, is characterized in that, comprises the following step:
A plurality of exposed images of acquisition between exposure period;
Show described a plurality of exposed images between described exposure period; And
Optionally store described a plurality of exposed image.
10. image acquisition method as claimed in claim 9, is characterized in that, before described method also is included between described exposure period and finishes, store described a plurality of exposed images at least wherein one, and close shutter.
11. image acquisition method as claimed in claim 10 is characterized in that, described method also is included between described exposure period, does not empty to capture the electric charge of one of described a plurality of exposed images image acquisition unit.
12. image acquisition method as claimed in claim 9 is characterized in that, described method also be included between described exposure period the described a plurality of images of storage at least one of them, and close shutter when finishing between described exposure period.
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Application publication date: 20131106 |