CN101355651A - Image pickup device - Google Patents
Image pickup device Download PDFInfo
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- CN101355651A CN101355651A CNA2008101272493A CN200810127249A CN101355651A CN 101355651 A CN101355651 A CN 101355651A CN A2008101272493 A CNA2008101272493 A CN A2008101272493A CN 200810127249 A CN200810127249 A CN 200810127249A CN 101355651 A CN101355651 A CN 101355651A
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Abstract
The invention provides a camera device capable of obtaining images by using a plurality of photographing conditions before photographing and capable of photographing expected images by users reliably according to set photographing conditions. An image sensor (15) is driven by different photographing conditions aiming at each photographing frame. A plurality of image data obtained is processed in an image process circuit (28). A plurality of browsing images are displayed on an LCD (33) according to image data for a plurality of browsing images obtained in the image process circuit (28). Therefore, under a condition that exposure time is changed, result photographing with different photographing conditions previously can be determined on the LCD (33) to photograph expected images by users.
Description
Technical field
The present invention relates to a kind of camera head, relate in particular to before the still image photography and can browse the camera head that picture shows.
Background technology
In recent years, have that will to drive the camera head of browsing menu display function (for example, digital camera) that image that imaging apparatus obtains is presented on the display parts such as LCD in real time before photography increasing.In addition, following Electrofax has been proposed: during browsing picture and show before photography in patent documentation 1, be simultaneously displayed on a plurality of images that applied various image processing such as white balance processing under a plurality of different conditions, and can be with according to the photography conditions of selected image therefrom, the still image after carrying out is taken.In above-mentioned patent documentation 1, before photography, can be once a plurality of images of the situation that is equivalent to take under a plurality of different photography conditions be confirmed.
[patent documentation 1] TOHKEMY 2002-142148 communique
Herein, in patent documentation 1, be not the actual obtained result that photographs to be browsed picture show, but utilize image processing such as white balance or γ correction to generate the image that when still image is photographed, obtains and show.But, because the time for exposure when not having to consider to make the preceding time for exposure of photography with photography is consistent, so the time for exposure of the time for exposure of the image that shows before photography and the image the time obtained in photography is when inconsistent, even photograph with the photography conditions of setting before photography, having obtained image is not the desirable situation of user yet.
Summary of the invention
The present invention finishes in view of above situation, its purpose is to provide a kind of camera head, this camera head can be confirmed before photography with a plurality of different obtained images of photography conditions, and can photograph reliably to the desirable image of user according to the photography conditions of having set.
To achieve these goals, the camera head of the present invention the 1st aspect has in subject being photographed with the camera head that obtains still image: image unit, and it is made a video recording to subject; Control unit, it works above-mentioned image unit under a plurality of different photography conditions; And the windows display unit, its simultaneously dynamic image show above-mentioned image unit worked under above-mentioned a plurality of different photography conditions and a plurality of images of obtaining.
Can provide a kind of camera head according to the present invention, this camera can be confirmed the photographic effects based on a plurality of photography conditions before photography, and can clap the desirable image of shadow user reliably according to the photography conditions that sets.
Description of drawings
Fig. 1 is the block diagram that illustrates as the structure of the digital camera of an example of the camera head of first embodiment of the invention.
Fig. 2 shows the figure of the buffer storage of SDRAM.
Fig. 3 shows the figure of each action when browsing the picture demonstration.
Fig. 4 is the figure that the example of browsing the picture demonstration in first execution mode is shown.
Fig. 5 show in first execution mode from browsing the flow chart that picture is shown to the flow process of still image photography.
Fig. 6 is the figure that the example of browsing the picture demonstration in second execution mode is shown.
Fig. 7 show in the 3rd execution mode from browsing the flow chart that picture is shown to the flow process of still image photography.
Fig. 8 is the figure that the example of browsing the picture demonstration in the 3rd execution mode is shown.
Fig. 9 show in the 4th execution mode from browsing the flow chart that picture is shown to the flow process of still image photography.
Figure 10 is the figure that the example of browsing the picture demonstration in the 4th execution mode is shown.
Figure 11 show in the 5th execution mode from browsing the flow chart that picture is shown to the flow process of still image photography.
Figure 12 is the figure that the example of browsing the picture demonstration in the 5th execution mode is shown.
Symbol description
12: to focus lens; 13: zoom lens 14: aperture device; 15: imageing sensor; 16: focusing control part 17:AF motor; 18: the zoom control part; 19: the zoom motor; 20: the aperture control part; 21: the aperture motor; 22: the imageing sensor driver; 23: timing generator (TG:timing generator) circuit; 24: imaging circuit; 25: bus; The 26:AE handling part; The 27:AF handling part; 28: image processing circuit; 29: compressed and decompressed portion; 30:SDRAM; 31: recording medium; The 32:LCD driver; 33:LCD; 34: flash memory; 35:CPU; 36: operating portion; 37: loud speaker; 38: power supply unit.
Embodiment
Next, with reference to accompanying drawing embodiments of the present invention are described.
[first execution mode]
At first, first execution mode of the present invention is described.Fig. 1 is the block diagram that illustrates as the structure of the digital camera of an example of the camera head of first embodiment of the invention.Digital camera shown in Figure 1 has: to focus lens 12, zoom lens 13, aperture device 14, imageing sensor 15, focusing control part 16, AF motor 17, zoom control part 18, zoom motor 19, aperture control part 20, aperture motor 21, imageing sensor driver 22, timing generator (TG:timing generator) circuit 23, imaging circuit 24, bus 25, AE handling part 26, AF handling part 27, image processing circuit 28, compressed and decompressed 29, SDRAM30, recording medium 31, lcd driver 32, LCD33, flash memory 34, CPU35, operating portion 36, loud speaker 37 and power supply unit 38.
To focus lens 12 is by the lens combination that is used to carry out focal adjustment in the photographic lens that focus lens 12 and zoom lens 13 are constituted.This is driven on the optical axis direction of representing with the diagram chain-dotted line focus lens 12, to regulate the focal position of photographic lens.Zoom lens 13 are the lens combinations that zoom is regulated of carrying out in the photographic lens.These zoom lens 13 are driven on the optical axis direction of representing with diagram one chain-dotted line, to regulate the focal length of photographic lens.Aperture device 14 constitutes switching freely, this aperture device 14 regulate via to focus lens 12 and zoom lens 13 incidents from the light of not shown subject amount of incident to imageing sensor 15.
Imageing sensor 15 will convert to from the light of not shown subject and its light quantity corresponding charge, and the electric charge after will changing is exported as the signal of telecommunication (image pickup signal).Herein, the frame frequency of the imageing sensor in the present embodiment 15 (shooting frame frequency) uses the enough big frame frequency of frame frequency (display frame frequency) with respect to LCD33.More particularly, increase the shooting frame frequency, with reach make described later browse image that the required total time for exposure of repeatedly photography (exposure) of carrying out when picture shows is shorter than demonstration one frame in LCD33 during the degree of (inverse of display frame frequency).In general, the imageing sensor that constitutes easily the CMOS mode is higher than the imageing sensor of shooting frame frequency of the imageing sensor of CCD mode, so as the imageing sensor that uses in the present embodiment, the imageing sensor of CMOS mode is more preferred than CCD mode.
Focusing control part 16 drives AF motor 17 and makes focus lens 12 mobile on optical axis direction under the control of CPU35.Zoom control part 18 drives zoom motor 19 zoom lens 13 is moved on optical axis direction under the control of CPU35.Aperture control part 20 drives aperture motor 21 and carries out the switching of aperture device 14 under the control of CPU35.
26 pairs of AE handling parts utilize each presumptive area of the view data that imaging circuit 24 obtains to calculate AE evaluation of estimate, and the AE evaluation of estimate that calculates to CPU35 output.27 pairs of AF handling parts calculate AF evaluation of estimate by each presumptive area of the view data that imaging circuit 24 obtains, and the AF evaluation of estimate that calculates to CPU35 output.CPU35 estimates the AE evaluation of estimate, and the AE that carries out the opening amount of time for exposure of control chart image-position sensor 15 and aperture device 14 according to its evaluation result handles, and the AF evaluation of estimate is estimated, controlled the AF processing that focusing control part 16 is regulated the focal position of photographic lens.
28 pairs of view data that obtain by imaging circuit 24 of image processing circuit are implemented image processing such as white-balance correction, edge treated.Compressed and decompressed 29 when document image, compress view data after image processing circuit 28 carries out image processing with predetermined compress modes such as JPEG modes.In addition, compressed and decompressed 29 when the reconstruction of image, to the compression after view data decompress.
SDRAM30 is the storage part that is stored temporarily in the deal with data that produces in each one such as imaging circuit 24, image processing circuit 28, compressed and decompressed 29.Herein, as shown in Figure 2, SDRAM30 in the present embodiment has a plurality of buffer storage (buffer 1,2,3,4).Buffer storage has the capacity that picture shows the view data of required 1 frame (1) of browsing that only can store among the LCD33, is provided with at least in aftermentioned and browses the individual buffer storage of number (being 4 herein) that can be shown to the image on the LCD33 when picture shows simultaneously.
The various control programs that flash memory 34 record is carried out through CPU35 and when carrying out various control program employed parameter etc.CPU35 carries out total control to the exercises of browsing these digital cameras such as the action of picture display action and image photography, reconstruction of image action thus according to the action that the control program that writes down in the flash memory 34 comes control chart 1 each one.Operating portion 36 is connected on the CPU35, and gives various indications to CPU35.CPU35 carries out exercises control according to the instruction content of operating portion 36.
Below, the action of digital camera shown in Figure 1 is described.Action during in addition herein, especially to browsing picture and show in the digital camera shown in Figure 1 describes.What is called is browsed picture and is shown as before photography when waiting and makes imageing sensor 15 continuous operations, make the image (browse graph picture) that obtains through the continuous operation of imageing sensor 15 be presented at action on the LCD33 as dynamic image.Browsing in the picture demonstration of present embodiment, according to each display frame, photography under a plurality of photography conditions (time for exposure) that carry out when still image is photographed actual set and obtain shows many images of obtaining thus simultaneously at the enterprising action attitude of LCD33 image.
Fig. 3 shows the figure of each action when browsing the picture demonstration.Herein, the example of Fig. 3 is to changing the time for exposure of imageing sensor 15 into as photography conditions the example of four kinds of A, B, C, D.In the present embodiment, will be made as A=1/125 second, B=1/250 second, C=1/500 second, D=1/1000 second as an example the time for exposure.If f-number is equally photographed (exposure), then the exposure of the browse graph picture of obtaining by each exposure differs 1 grade (1EV) one by one.
In addition, in the present embodiment, utilize the electronic shutter action of imageing sensor 15 and the time for exposure of imageing sensor 15 is changed.The electronic shutter action is following action, discharges the electric charge that is accumulated in the imageing sensor 15 in the moment of having passed through the time for exposure of wishing, does not need mechanical shutter thus, just imageing sensor 15 can be modeled as the shading state.In addition, carry out this electronic shutter action according to timing signal from TG circuit 23.That is, in the present embodiment,, make imageing sensor 15 with different time for exposure work at each shooting frame by changing the timing of output from the timing signal of TG circuit 23 according to each shooting frame.
When the timing signal from TG circuit 23 outputs to imageing sensor driver 22, the beginning exposure in the frame of respectively making a video recording.In addition, when passing through the time for exposure of setting in each shooting frame, timing signal is output to imageing sensor driver 22 and imaging circuit 24 at every turn.Thus, carry out reading of the picture signal that produces by imaging circuit 24, and carry out the discharge of accumulating electric charge of imageing sensor 15, to finish exposure at its shooting frame.Then, output is carried out the shooting of next shooting frame then from the timing signal of TG circuit 23.In imaging circuit 24, picture signal is implemented CDS processing, AGC processing and ADC processing etc.The view data that obtains by imaging circuit 24 is stored among the SDRAM30 via bus 25.
The view data that is stored among the SDRAM30 is read by image processing circuit 28.And, in image processing circuit 28, view data is implemented to regulate size (dwindling) processing etc. show required processing in order to browse picture, generate and browse picture display image data (A, B, C, D).Handling browse the picture display image data A, B, C, D obtain in image processing circuit 28 is stored in the buffer 1,2,3,4 of SDRAM30 successively.
Herein, the picture size of browsing the picture display image data changes according to the number of the browse graph picture that shows simultaneously on LCD33.For example, on LCD33, show 4 simultaneously when browsing image A, B, C, D, each picture size of browsing the picture display image data is reduced into common demonstration with 1/4 of size.
In the time of in browsing the buffer 1,2,3,4 that view data that picture uses is stored in SDRAM30,, read to be stored in and browse the picture view data in each buffer storage by lcd driver 32.In addition, the picture of browsing that these are read is simultaneously displayed on the LCD33 as shown in Figure 4 with view data.
In the present embodiment, a succession of action shown in Figure 3 is made as 1 group of action, and, browses picture and show by carrying out this group action repeatedly.In addition, show simultaneously 4 browse graphs obtaining with above-mentioned 4 kinds of photography conditions as the time, be made as 120fps by shooting frame frequency with imageing sensor 15, on one side can carry out exposure according to the above-mentioned time for exposure, Yi Bian the display frame frequency of LCD33 is remained 30fps.By using such imageing sensor 15, can on LCD33, show the image that photography conditions is different simultaneously, and show the picture of browsing of the nature do not have visual discomfort.
Fig. 5 show in the present embodiment from browsing the flow chart that picture is shown to the flow process of still image photography.In addition, the processing of Fig. 5 is the processing of carrying out according to the control of CPU35.
Accept the power connection operation of digital camera or to the transfer operation of still image photograph mode etc., the processing of beginning Fig. 5.In Fig. 5, CPU35 moves TG circuit 23, image processing circuit 28, lcd driver 32 etc. as shown in Figure 3, shows a plurality of browse graph pictures (step S1) simultaneously on LCD33.Herein, when this browsed the picture demonstration, CPU35 was by lcd driver 32, the overlapping LCD33 of being presented at of frame 33b that makes photography conditions (time for exposure) 33a of each browse graph picture and be used to confirm the browse graph picture of the current selection of user.The browse graph picture that user's operating operation portion 36 moves frame 33b to select desirable photography conditions.In addition, as the operating portion that is used to select the browse graph picture, for example considered the operating portion that cross key is such, but be not limited thereto.For example, by touch panel is set on LCD33, LCD33 is become be used to carry out the operating portion that the browse graph picture is selected.
CPU35 judges whether the user has carried out the selection (step S2) of browse graph picture, when having carried out the selection of browse graph picture, and the photography conditions (step S3) when will the photography conditions corresponding being set at the still image photography with selected browse graph picture.Then, CPU35 judges whether by the user operation of operating portion 36 have been indicated the execution (step S4) of still image photography.In the judgement of step S4, when the still image photography was not carried out in indication, CPU35 judged whether to have been undertaken by user's operation the change indication (step S5) of photography conditions.In the judgement of step S5, when the change indication of not carrying out photography conditions, CPU35 is the judgement of execution in step S4 once more.On the other hand, in the judgement of step S5, when the change indication of having carried out photography conditions, carry out the selection of browse graph picture in order to make the user, CPU35 is the processing of execution in step S1 once more.
In addition, in the judgement of step S4, when having indicated the photography of execution still image, CPU35 carries out still image photography (step S6).That is, CPU35 calculates the f-number that can obtain the such aperture device of correct exposure amount 14 in step S3 with the photography conditions of setting (time for exposure), and controls aperture control part 20 according to the f-number of being calculated, to regulate aperture device 14.
Then, CPU35 controls TG circuit 23 and drives imageing sensor 15.In addition, CPU35 compresses in compressed and decompressed 29 handle the view data that obtains via imageing sensor 15 in image processing circuit 28 after, and is recorded in the recording medium 31.
As described above, according to first execution mode, by making imageing sensor 15 with different a plurality of photography conditions work and make actual photographed image on LCD33, browse picture to show, can reduce to the user and bring following discontented possibility when picture shows browsing: promptly simulating " the actual image of clapping shadow is different with predetermined picture " the such problem that produces when having made the image that obtains by photography by image processing.
In addition, can once look like to compare, can discern difference so simply because of the different images that cause of photography conditions to the different a plurality of browse graphs of photography time.Can carry out the setting of photography conditions simply thus.
, in above-mentioned example, be illustrated herein, but, white balance, photography sensitivity, f-number etc. arranged as other photography conditions that when still image is photographed, can set to changing the example of time for exposure as photography conditions.Even the method for above-mentioned first execution mode also can be suitable for for these photography conditions.For example, when a plurality of browse graph pictures that changed white balance are shown, in imaging circuit 24, the output (for example: R, G, B) of imageing sensor 15 is carried out AGC when handling, can change the gain of each color according to each frame of making a video recording.In addition, for photography sensitivity, can change in imaging circuit 24 according to each frame of making a video recording the gain of AGC when handling (under the situation of photography sensitivity, being made as the gain of all colours identical) carried out in the output of imageing sensor 15.In addition,, do not need the Mechanical Driven as liquid crystal shutter in the front of imageing sensor 15 for f-number, can be provided with can high speed motion shutter.Because under which kind of situation, do not need to generate image,, can reduce the processing time and consume electric power so compare with the image that simulation generates the result that is equivalent to photograph by image processing circuit 28.
In addition, in above-mentioned example, the browse graph that is simultaneously displayed on the LCD33 is looked like to be made as 4 kinds, but be not limited thereto.If shorten the time for exposure in each shooting frame, also can show the browse graph picture more than 4 kinds simultaneously.On the contrary, by reducing the quantity of the browse graph picture that shows simultaneously, can prolong the time for exposure of a frame that shows simultaneously.
[second execution mode]
Next second execution mode of the present invention is described.In the above-described first embodiment, photograph and a plurality of browse graph pictures of obtaining and be illustrated on LCD33, showing simultaneously with the example that the photography conditions corresponding with the browse graph picture of therefrom selecting carries out still image photography thereafter with a plurality of different photography conditions.Relative therewith, second execution mode is the example that the photography conditions of the browse graph picture that can select the method for utilizing first execution mode carries out fine adjustment.In addition, the structure of camera head is illustrated in Fig. 1, so omit its explanation.
Fig. 6 shows the figure that is simultaneously displayed on the browse graph picture on the LCD33 when picture shows that browses in second execution mode.Herein, from the browse graph picture of Fig. 4, select any one browse graph as the time carry out second execution mode the picture of browsing show.In second execution mode, when select according to the illustrated method of first execution mode any one browse graph as the time, in next display frame, set the photography conditions (time for exposure) of next display frame once more by CPU35, so that obtain selected browse graph picture and look like to make exposure to increase and decrease the fine adjustment amplitude of being scheduled to and the browse graph picture that obtains with respect to this browse graph.
For example, Fig. 6 is illustrated in the browse graph picture that is presented at when selecting to browse image B (1/250 second time for exposure) and the fine adjustment amplitude being set at 1/3 grade on the LCD33.At this moment, browse image B ' and browse image B " with browse image B and be presented at jointly on the LCD33, this browses image B ' prolonged the time for exposure so that exposure with respect to browse graph as B ultrasonic go out 1/3 grade (+1/3EV) obtain; This browses image B " shorten the time for exposure so that exposure (1/3EV) is obtained for 1/3 grade with respect to browsing the image B reduction.In addition, identical with first execution mode, regularly control the time for exposure by adjusting from the output of the timing signal of TG circuit 23.
In addition, during browsing picture and show in second execution mode, also show the adjusting rod 33c that is used for visuognosis fine adjustment amplitude.This adjusting rod 33c represents with respect to the current fine adjustment amplitude of browsing image B with the length of central portion.For example, when the fine adjustment amplitude was 1/3 grade, the length of central portion was 1/3 of entire length.
In addition, the browse graph during fine adjustment as selection and the processing of browse graph picture after selecting with illustrated in step S2～S6 of Fig. 5, so detailed.
As previously discussed, according to second execution mode, the browse graph picture of the photography conditions of wishing with respect to the user, fine adjustment photography conditions further in addition, can show simultaneously and reflect that it regulates result's browse graph picture in real time.Therefore, can photograph to still image with the photography conditions of further reflection user view.
In addition, in second execution mode, showing the fine adjustment amplitude is 1/3 grade example, but is not limited thereto.For example, also can make the fine adjustment amplitude for ± 1/2 grade, ± 1/4 grade.That is, the fine adjustment amplitude can be for satisfying any amplitude of-1 grade＜fine adjustment amplitude＜+1 grade.
[the 3rd execution mode]
Below, third embodiment of the invention is described.The 3rd execution mode is the execution mode that can change the fine adjustment amplitude in second execution mode in browsing the picture demonstration.
Fig. 7 show in the present embodiment from browsing the flow chart that picture is shown to the flow process in still image when photography.Fig. 7 has carried out the processing that the browse graph picture selects the back to carry out in the step S2 of Fig. 5.
When by in the first embodiment the explanation method select any one browse graph as the time, in next display frame, CPU35 regulates the time for exposure of imageing sensor 15, so that obtain browse graph picture that the user selects, look like to make exposure reduce the browse graph picture of predetermined fine adjustment amplitude and make exposure improve the browse graph picture of predetermined fine adjustment amplitude, make a plurality of browse graph pictures of obtaining thus shown in Fig. 8 (a) or Fig. 8 (b), be simultaneously displayed on LCD33 and go up (step S11) with respect to this browse graph.Herein, Fig. 8 (a) illustrates the browse graph picture that the fine adjustment amplitude shows in the time of ± 2/3 grade, and Fig. 8 (b) illustrates the browse graph picture that the fine adjustment amplitude shows in the time of ± 1/3 grade.In the 3rd execution mode, when carrying out browsing picture and show as Fig. 8 (a) or Fig. 8 (b), operate the length of regulating adjusting rod 33c by the user, thus can ± 1/3 grade and ± change the fine adjustment amplitude between 2/3 grade.
Behind the browse graph picture that has shown as Fig. 8 (a) or Fig. 8 (b), CPU35 judges whether the user has carried out the selection (step S12) of browse graph picture.In the judgement of step S12, when not carrying out the selection of browse graph picture, CPU35 judges whether the user has carried out the alter operation (step S13) of fine adjustment amplitude.The modification of this fine adjustment amplitude in addition, when being provided with touch panel on LCD33, also can change the fine adjustment amplitude by the central part that touches adjusting rod 33c as carrying out by the operating portion by cross key.
In the judgement of step S13, when not carrying out the alter operation of fine adjustment amplitude, CPU35 turns back to step S12 and carries out standby.On the other hand, in the judgement of step S13, when having carried out the alter operation of fine adjustment amplitude,, the photography conditions of the browse graph picture that shows is set (step S14) once more in next display frame according to fine adjustment amplitude after changing., return step S11, show when carrying out the browse graph picture with the photography conditions of setting once more thereafter.For example, the fine adjustment amplitude from ± 2/3 grade be altered to ± 1/3 grade the time, in next display frame, obtain browse image B, prolonging exposure time so that exposure with respect to browse graph as B ultrasonic go out 1/3 grade and obtain browse image B ' and shorten the time for exposure so that exposure with respect to browse image B reduce by 1/3 grade and obtain browse image B ", and the browse graph that these obtain looked like to be simultaneously displayed on the LCD33.In addition, by following the length that shortens the central portion of adjusting rod 33c in this, to user notification fine adjustment amplitude from ± 2/3 grade be altered to ± 1/3 grade.Thus, the picture of browsing as Fig. 8 (a) is presented at and switches to the such picture of browsing of Fig. 8 (b) in next display frame and show, browses image B ' become the browse graph picture darker than Fig. 8 (a), browse image B " become the browse graph picture brighter than Fig. 8 (a).
In addition, in the judgement of step S12, under the situation of the selection of having carried out the browse graph picture, the photography conditions (step S15) in the time of will being set at the still image photography corresponding to the photography conditions of selected browse graph picture.Then, CPU35 judges whether by the user execution still image photography (step S16) have been indicated in the operation of operating portion 36.In the judgement of step S16, when the still image photography was not carried out in indication, CPU35 judged whether to have carried out the change indication (step S17) of photography conditions.In the judgement of step S17, when the change indication of not carrying out photography conditions, CPU35 is the judgement of execution in step S16 once more.On the other hand, in the judgement of step S17, when the change indication of having carried out photography conditions, carry out the selection of browse graph picture in order to make the user, CPU35 is the processing of execution in step S11 once more.In addition, in the judgement of step S17, when having indicated the photography of execution still image, CPU35 carries out still image photography (step S18).
As discussed above, according to the 3rd execution mode, can change the fine adjustment amplitude, so, compare the still image that can take under the photography conditions that has further reflected user view with second execution mode.That is, can change meticulously by the method for the 3rd execution mode with the rough photography conditions of setting of the method for first execution mode.
Herein, the change amount with the fine adjustment amplitude of having illustrated in the 3rd execution mode is as each 1/3 grade example, but is not limited thereto.For example, also can make the change amount when the fine adjustment amplitude is ± 1/4 grade is each 1/4 grade.
In addition, the change of fine adjustment amplitude is not limited to adjusted bar 33c, also can carry out in menu screen of digital camera etc.
[the 4th execution mode]
Below, four embodiment of the invention is described.Example to change fine adjustment amplitude in the 3rd execution mode is illustrated, but in the 4th execution mode to the photography conditions (time for exposure) of the browse graph picture that do not change the fine adjustment amplitude, will show simultaneously without exception mobile phase with the example of change amount.
Fig. 9 show in the present embodiment from browsing the flow chart that picture is shown to the flow process of still image photography.Fig. 9 is the processing of carrying out behind the selection browse graph picture in the step S2 of Fig. 5.
The method that illustrates in according to first execution mode selected any one browse graph as the time, in next display frame, CPU35 regulates the time for exposure of imageing sensor 15, so that obtain browse graph picture that the user selects, look like to make exposure reduce the browse graph picture of predetermined fine adjustment amplitude and make exposure improve the browse graph picture of predetermined fine adjustment amplitude, make a plurality of browse graph pictures of obtaining shown in Figure 10 (a) or Figure 10 (b), be simultaneously displayed on LCD33 thus and go up (step S21) with respect to this browse graph.In the 4th execution mode, Figure 10 (a) or Figure 10 (b) such browse picture and show the time, move the position of the central portion by making adjusting rod 33c, can change the photography conditions of all browse graph pictures that show simultaneously on same direction according to its amount of movement.
After having shown the such browse graph picture of Figure 10 (a) or Figure 10 (b), CPU35 judges whether the user has carried out the selection (step S22) of browse graph picture.In the judgement of step S22, when not carrying out the selection of browse graph picture, CPU35 judges whether the user has carried out the move operation (step S23) of photography conditions.In the judgement of step S23, when not carrying out the move operation of photography conditions, CPU35 turns back to step S22 standby.On the other hand, in the judgement of step S23, when having carried out the move operation of photography conditions, be set in the photography conditions (step S24) of the browse graph picture that shows in next display frame according to moving direction.Afterwards, return step S21, show when carrying out the browse graph picture with the photography conditions of setting once more.For example, when moving direction is positive direction (for example right), set photography conditions once more, so that browse image B, browse image B ' and browse image B " photography conditions (time for exposure) increase and the corresponding amplitude of amount of movement (in the occasion of time for exposure, the time for exposure prolongs).In addition, the position of the central portion of adjusting rod 33c is moved, come to have carried out moving of photography conditions to user notification by following in this.Thus, the picture of browsing as Figure 10 (a) is presented at and switches to the such picture of browsing of Figure 10 (b) in next display frame and show, it shows that browse graph than Figure 10 (a) is as bright browse graph picture.On the contrary, when moving direction is negative direction (for example left to), set photography conditions once more, so that browse image B, browse image B ' and browse image B " photography conditions reduce and the corresponding amplitude of amount of movement.
In addition, in the judgement of step S22, under the situation of the selection of having carried out the browse graph picture, the photography conditions (step S25) when will the photography conditions corresponding being set at the still image photography with selected browse graph picture.Then, CPU35 judges whether by the user execution still image photography (step S26) have been indicated in the operation of operating portion 36.In the judgement of step S26, when the still image photography was not carried out in indication, CPU35 judged whether to have carried out the change indication (step S27) of photography conditions.In the judgement of step S27, when the change indication of not carrying out photography conditions, CPU35 is the judgement of execution in step S26 once more.On the other hand, in the judgement of step S27, when the change indication of having carried out photography conditions, in order to allow the user carry out the selection of browse graph picture, CPU35 is the processing of execution in step S21 once more.In addition, in the judgement of step S27, when having indicated the photography of execution still image, CPU35 carries out still image photography (step S28).
As described above,, the user is browsed the picture demonstration with the result that exposure increases change (perhaps reducing change), therefore understand operation easily intuitively according to the 4th execution mode.
Herein, the method for the 4th execution mode also can also be used with the method for the 3rd execution mode.
[the 5th execution mode]
Below, fifth embodiment of the invention is described.The 5th execution mode is for estimating browsing each the browse graph picture that shows simultaneously in the picture demonstration and recommending to show the example that is judged as with the captured browse graph picture of wherein best photography conditions before photography in digital camera.
Figure 11 show in the present embodiment from browsing the flow chart that picture is shown to the flow process of still image photography.Accept the power connection operation of digital camera or after still image photograph mode transfer operation etc., the processing of beginning Figure 11.In Figure 11, CPU35 moves TG circuit 23, image processing circuit 28, lcd driver 32 etc. as shown in Figure 3, shows a plurality of browse graph pictures (step S31) simultaneously on LCD33.Next, CPU35 estimates the photography conditions separately of a plurality of browse graph pictures that show simultaneously, and selects the browse graph picture (step S32) of wherein best photography conditions.The photography conditions of Ping Jiaing is the exposure (being the time for exposure) of each browse graph picture and the white balance of each browse graph picture etc. herein.For example, when estimating the time for exposure of each browse graph picture, obtain the AE evaluation of estimate that the position (can detect according to the AF evaluation of estimate that calculates) that has main subject in each browse graph picture is located in AF handling part 27, and the browse graph that AE evaluation of estimate that will this main subject position approaches the value corresponding with the correct exposure amount that sets according to each digital camera most looks like to be set at optimized image.In addition, when estimating the white balance of each browse graph picture, carry out known facial the detection in the main subject position of each browse graph picture, the browse graph that the rgb value of facial parts is approached the rgb value of the skin color set according to each digital camera most looks like to be set at the browse graph picture of white balance the best.
In step S32, after having selected the browse graph picture of best photography conditions, CPU35 controls lcd driver 32, overlaps on the browse graph picture of selecting as the best achievement in cinematography condition (step S33) will recommend to show.Figure 12 is the figure that is illustrated in the example when recommending to show on the browse graph picture.Figure 12 illustrates following example, carries out the evaluation of time for exposure as photography conditions, and the result of this evaluation selects to browse the browse graph picture of image C as optimum exposure time.As shown in figure 12, in the present embodiment, show that as recommending it similarly is to show (being shown as literal " recommendation " in the example of Figure 12) 33d and represent to recommend the demonstration 33e of the reason of its browse graph picture with the literal that the best achievement in cinematography condition is taken which browse graph is shown.And, demonstration 33e as the expression rationale for the recommendation, for example in Figure 12, show (example at Figure 12 is literal demonstration " exposure ") as the literal of the photography conditions of the benchmark of estimating the browse graph picture except being used for representing, also flicker shows the outline portion of main subject, which in the expression picture partly to be best photography conditions with.
After having carried out recommending to show in step S33, CPU35 makes inner not shown timer begin counting (step S34).This timer is to be used for timer that the stand-by period that arrives before the photography conditions automatic setting is counted.After the counting of timer began, CPU35 judged whether the user has carried out the selection (step S35) of browse graph picture.In the judgement of step S35, selected browse graph as the time, CPU35 resets timer (step S36), the photography conditions (step S37) the when photography conditions of the browse graph picture that will select corresponding to the user is set at the still image photography then.
On the other hand, in the judgement of step S35, when the user did not carry out the selection of browse graph picture, CPU35 judged whether timer has counted the scheduled time (step S38).In the judgement of step S38, during the scheduled time, return step S35 in timer no count still, CPU35 judges once more whether the user has carried out the selection of browse graph picture.On the other hand, in the judgement of step S38, when timer has been counted the scheduled time, CPU35 will with as the best achievement in cinematography condition and the photography conditions (step S39) of the corresponding photography conditions of the browse graph picture that the user is recommended when being set at the still image photography.That is, after having carried out recommending demonstration, when the user does not carry out the selection of browse graph picture in the given time, be automatically made photography conditions as the browse graph picture of having recommended of the best achievement in cinematography condition.In addition, when in step S39, having carried out the automatic setting of photography conditions, also can utilize the order that for example will carry out automatic setting to be shown to LCD33 and go up to user notification.
After setting photography conditions, CPU35 judges whether the operation to operating portion 36 by the user, has indicated execution still image photography (step S40).In the judgement of step S40, when the still image photography was not carried out in indication, CPU35 judged whether to have been undertaken by user's operation the change indication (step S41) of photography conditions.In the judgement of step S41, when the change indication of not finishing photography conditions, CPU35 is the judgement of execution in step S40 once more.On the other hand, in the judgement of step S41, when the change indication of having carried out photography conditions, carry out the selection of browse graph picture in order to make the user, CPU35 is the processing of execution in step S31 once more.
In addition, in the judgement of step S41, when having indicated the photography of execution still image, CPU35 carries out still image photography (step S42).That is, CPU35 calculates the f-number of obtaining the such aperture device of correct exposure amount 14 in step S37 or step S39 with the photography conditions of setting (time for exposure), controls aperture control part 20 and regulates aperture device 14 according to the f-number of calculating.Then, CPU35 controls TG circuit 23 and drives imageing sensor 15.In addition, CPU35 compresses in compressed and decompressed 29 handled the view data that obtains by imageing sensor 15 in image processing circuit 28 after, and is recorded in the recording medium 31.
As discussed above, according to the 5th execution mode, except the effect identical with first execution mode, also when browsing the picture demonstration, differentiate the browse graph picture of the best achievement in cinematography condition by digital camera, look like to recommend to show at the browse graph that is determined, so the user not only can it is also conceivable that photography conditions is set in the judgement of digital camera according to the judgement of self.
Describe the present invention based on above execution mode, but the present invention is not limited to above-mentioned execution mode, obviously can in purport scope of the present invention, carries out various distortion or application.
In addition, comprise other invention of various levels in the above-mentioned execution mode, can extract various inventions according to the appropriate combination of disclosed a plurality of constitutive requirements.For example, some structure important document of deletion also can address the above problem from the entire infrastructure important document shown in the execution mode, under the situation that can access above-mentioned such effect, also can extract the structure of having deleted these constitutive requirements and be used as invention.
Claims (14)
1. a camera head is photographed to obtain still image to subject, it is characterized in that,
This camera head has:
Image unit, it is made a video recording to subject;
Control unit, it makes above-mentioned image unit carry out work under a plurality of different photography conditions; And
The windows display unit, its simultaneously dynamic image show above-mentioned image unit worked under above-mentioned a plurality of different photography conditions and a plurality of images of obtaining.
2. camera head according to claim 1 is characterized in that,
This camera head also has imaging condition setting unit, and it selects in the above-mentioned a plurality of dynamic images that are shown any one, sets the photography conditions that is used for being undertaken by above-mentioned image unit the still image photography,
Above-mentioned control unit is worked above-mentioned image unit under the photography conditions of above-mentioned setting, carry out the still image photography by above-mentioned image unit.
3. camera head according to claim 2 is characterized in that,
This camera head also has record cell, the still image that its record is obtained by above-mentioned image unit by the photography of the still image under the photography conditions of above-mentioned setting.
4. camera head according to claim 1 is characterized in that,
Above-mentioned imaging conditions comprises the time for exposure of above-mentioned image unit.
5. camera head according to claim 4 is characterized in that,
Above-mentioned imaging conditions also comprise in the f-number of the sensitivity of the white balance of the dynamic image of obtaining by above-mentioned image unit, above-mentioned image unit and above-mentioned image unit at least any one.
6. camera head according to claim 2 is characterized in that,
After utilizing above-mentioned imaging condition setting unit to set above-mentioned photography conditions, above-mentioned control unit makes above-mentioned image unit carry out at the photography conditions of above-mentioned setting with by the photography conditions to above-mentioned setting carrying out work once more under a plurality of photography conditions that fine adjustment obtains
Above-mentioned windows display unit will make the image that above-mentioned image unit obtains carrying out work once more under the photography conditions of above-mentioned setting and make above-mentioned image unit undertaken by the photography conditions to above-mentioned setting carrying out a plurality of images that work obtains once more under a plurality of photography conditions that fine adjustment obtains, show once more as dynamic image simultaneously
Above-mentioned imaging condition setting unit is selected any one in a plurality of dynamic images that above-mentioned quilt shows once more, sets the photography conditions that is used for being undertaken by above-mentioned image unit the still image photography once more.
7. camera head according to claim 6 is characterized in that,
This camera head also has record cell, and this recording unit records is photographed by the above-mentioned photography conditions of setting once more still image down, the still image that is obtained by above-mentioned image unit.
8. camera head according to claim 6 is characterized in that,
This camera head also has fine adjustment amplitude change unit, and it is used for changing the fine adjustment amplitude of above-mentioned fine adjustment.
9. camera head according to claim 6 is characterized in that,
This camera head also has photography conditions change unit, its be used for to the photography conditions of above-mentioned setting with carry out the identical variable quantity of a plurality of photography conditions changes that fine adjustment obtains by photography conditions to above-mentioned setting.
10. camera head according to claim 1 is characterized in that,
This camera head also has the optimized image evaluation unit, and it estimates the photography conditions separately of above-mentioned a plurality of dynamic images, and selects the dynamic image of the best achievement in cinematography condition according to this evaluation result,
Above-mentioned windows display unit shows overlapping recommendation of dynamic image of the best achievement in cinematography condition of selecting by above-mentioned optimized image evaluation unit when showing above-mentioned a plurality of dynamic image.
11. camera head according to claim 10 is characterized in that,
Above-mentioned recommendation shows and comprises: the demonstration of the reason of the demonstration of order of dynamic image of above-mentioned the best achievement in cinematography condition and the dynamic image that above-mentioned the best achievement in cinematography condition is recommended in expression is recommended in expression to the user.
12. camera head according to claim 11 is characterized in that,
Expression recommends the literal that is shown as of order of the dynamic image of above-mentioned the best achievement in cinematography condition to show, the photography conditions that the demonstration of representing the reason of above-mentioned recommendation comprises the main subject in the above-mentioned dynamic image of expression is the demonstration of the order of suitable photography conditions.
13. camera head according to claim 10 is characterized in that,
This camera head also has imaging condition setting unit, and it selects in the above-mentioned a plurality of dynamic images that are shown any one, sets the photography conditions that is used for being undertaken by above-mentioned image unit the still image photography,
When having carried out having selected in the given time after above-mentioned recommendation shows beginning any above-mentioned a plurality of dynamic image, above-mentioned control unit is worked above-mentioned image unit under the photography conditions of this setting, carry out the still image photography by above-mentioned image unit, when having carried out not selecting in the given time after above-mentioned recommendation shows beginning any above-mentioned a plurality of dynamic image, above-mentioned control unit is worked above-mentioned image unit under the photography conditions of above-mentioned the best, carry out the still image photography by above-mentioned image unit.
14. camera head according to claim 10 is characterized in that,
As above-mentioned photography conditions, above-mentioned optimized image evaluation unit estimate the time for exposure of above-mentioned image unit and the white balance of the dynamic image that obtains by above-mentioned image unit at least any one, select the dynamic image of above-mentioned the best achievement in cinematography condition.
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| JP2007-193592 | 2007-07-25 | ||
| JP2007193592A JP2009033338A (en) | 2007-07-25 | 2007-07-25 | Imaging device |
| JP2007193592 | 2007-07-25 |
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| CN101355651B CN101355651B (en) | 2015-09-09 |
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| CN101355651B (en) | 2015-09-09 |
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