CN101848335B - Imaging apparatus and real-time view-finding display method - Google Patents

Imaging apparatus and real-time view-finding display method Download PDF

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Publication number
CN101848335B
CN101848335B CN2010101136602A CN201010113660A CN101848335B CN 101848335 B CN101848335 B CN 101848335B CN 2010101136602 A CN2010101136602 A CN 2010101136602A CN 201010113660 A CN201010113660 A CN 201010113660A CN 101848335 B CN101848335 B CN 101848335B
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camera
taken
photograph
view data
image
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CN101848335A (en
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铃木猛士
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Olympus Corp
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Olympus Imaging Corp
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Abstract

The invention provides an imaging apparatus and a real-time view-finding display method which display real captured images of users by means of an electronic viewfinder in an environment of low illuminance. The imaging apparatus has: imaging portions (102, 105, 110, 131 and the like) generating image data according to captured optical images; illuminating portions (106, 110 and the like) illuminating captured objects; electronic viewfinder (110, 132, 133, 141, 143, 144 and the like) for reproducing captured images; color information analyzing portions (121, 124, 123 and the like) for analyzing the color information included in the image data generated by the illuminated captured optical images in imaging portions; and color information correcting portions (123 and the like) for correcting the color information of the browsing image data generated by the captured optical images by means of the image data color information when the illuminating portions are not driven and reproducing the browsing image data (second image data) after correction on the electronic viewfinder.

Description

Camera and real-time view-finding display method
Technical field
The present invention relates to camera and real-time view-finding display method, especially, relate to and have roughly camera and the real-time view-finding display method that reproduces the electronic viewfinder of the view data that generates by imaging apparatus in real time.
Background technology
In recent years digital still image camera or digital video camera (below; Merge both and abbreviate digital camera as) in; Replacement is observed the general view finder of camera coverage via camera lens, adopts roughly in real time the so-called electronic viewfinder that on liquid crystal panel etc., shows the electronic image of being obtained by imaging apparatuss such as CCD (Charge Coupled Device) arrays.
And, following technology is for example disclosed in the patent documentation 1 shown in following: remote operation with monitor on, overlapping demonstration realtime graphic and CG (ComputerGraphics) image that obtains through three-dimensional artificial.
[patent documentation 1] TOHKEMY 2003-271993 communique
Here, for example under low-light (level) environment such as night photography or the photography of dark portion, compare during with photography under the bright place, the light quantity of imaging apparatus that incides digital camera is little.Therefore, at the roughly real-time image that shows on the electronic viewfinder of digital camera (below be called the live view image) almost near black and white.Therefore this is because light quantity is very few, can't obtain colouring information according to the picture signal that is obtained by imaging apparatus causes.
Therefore, in the photography under the low-light (level) environment, the live view image that on electronic viewfinder, shows is different greatly with the color that actual quilt is taken the photograph body, and existence can't show the problem of being taken the photograph the body image really to the user.
Summary of the invention
Therefore, the present invention is in view of the above problems and accomplishes, and its purpose is, is provided under the low-light (level) environment also can show camera and the real-time view-finding display method of being taken the photograph the body image really to the user via electronic viewfinder.
In order to reach this purpose; Camera of the present invention has: the optical image of taking the photograph body according to the quilt in the image pickup scope generate view data image pickup part, taken the photograph the Lighting Division that body throws light on and reproduced the said electronic viewfinder of being taken the photograph the view data of body that generates by said image pickup part said; This camera is characterised in that; This camera has: the colouring information analysis portion, and it is analyzed the 1st colouring information that comprises in the 1st view data that generates according to the said optical image of being taken the photograph body by said Lighting Division illumination at said image pickup part; And colouring information correction portion; It is not when driving said Lighting Division; Utilize the 2nd colouring information of the 2nd view data that said the 1st colouring information generates according to the said optical image of being taken the photograph body said image pickup part to proofread and correct, said the 2nd view data after said electronic viewfinder reproduces said the 2nd colouring information proofreaied and correct.
The camera of the invention described above is characterised in that; Said camera has is taken the photograph the body identification part; This quilt is taken the photograph the body identification part and the quilt that in said the 1st view data and said the 2nd view data, comprises is taken the photograph body is discerned; Said colouring information analysis portion is to being taken the photograph by said that in said the 1st view data that identifies the body identification part each is said is taken the photograph body; Analyze said the 1st colouring information, said colouring information correction portion utilizes said the 1st colouring information that said the 2nd colouring information is proofreaied and correct to by said each said body of being taken the photograph of being taken the photograph in said the 2nd view data that identifies the body identification part.
The camera of the invention described above is characterised in that; Said camera has camera shooting schema management portion; This camera shooting schema management portion manages the opening/closing of the camera shooting pattern that on said electronic viewfinder, shows the said image of being taken the photograph body; When said camera shooting schema management portion has opened said camera shooting pattern; Said Lighting Division and said image pickup part carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
The camera of the invention described above is characterised in that; Said camera has posture detecting part; This posture detecting part detect said image pickup part towards variation; Said posture detecting part detect said image pickup part towards variation the time, said Lighting Division and said image pickup part carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
The camera of the invention described above is characterised in that; Said camera has optical system; This optical system can change the zoom ratio of the optical image that incides said image pickup part; When said image pickup part generated said the 1st view data, said optical system was set to wide-angle side with said zoom ratio.
The camera of the invention described above is characterised in that; Said camera has optical system; This optical system can change the angle of visual field of the optical image that incides said image pickup part; Under the situation of the said angle of visual field that has changed said optical system, said Lighting Division and said image pickup part carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
The camera of the invention described above is characterised in that said camera has: optical system, and the light of said image pickup part is incided in its convergence; Automatic focusing portion, it automatically adjusts to said being taken the photograph on the body with the focus of said optical system; And switching part; It switches the opening/closing of said automatic focusing portion; Be switched under the situation about opening in said automatic focusing portion; Said Lighting Division and said image pickup part carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
The camera of the invention described above is characterised in that; Said camera has the variation detection unit; This variation detection unit judges that the quilt in said the 2nd view data takes the photograph body whether variation has taken place; Be judged to be quilt in said the 2nd view data at said variation detection unit and take the photograph under the situation that body taken place to change, said Lighting Division and said image pickup part carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
The camera of the invention described above is characterised in that; Said camera has Flash Mode management department; This Flash Mode management department manages the opening/closing of the Flash Mode that drives said Lighting Division; Opened under the situation of said Flash Mode in said Flash Mode management department, said Lighting Division and said image pickup part generate said the 1st view data.
And; Real-time view-finding display method of the present invention shows that on the said electronic viewfinder of the camera with image pickup part, Lighting Division and electronic viewfinder the quilt that image pickup scope comprised of said image pickup part takes the photograph the image of body; This real-time view-finding display method is characterised in that; This real-time view-finding display method comprises following steps: the 1st shooting step; In this step, drive said Lighting Division and drive said image pickup part, generate the 1st view data according to the said optical image of being taken the photograph body that is thrown light on thus; The colouring information analytical procedure in this step, is analyzed the 1st colouring information that said the 1st view data is comprised; The 2nd shooting step in this step, when not driving said Lighting Division, drives said image pickup part, generates the 2nd view data according to the said optical image of being taken the photograph body thus; The colouring information aligning step in this step, utilizes said the 1st colouring information that the 2nd colouring information of said the 2nd view data is proofreaied and correct; And the reproduction step, in this step, said the 2nd view data after reproduction is proofreaied and correct said the 2nd colouring information on the said electronic viewfinder.
The real-time view-finding display method of the invention described above is characterised in that; Said real-time view-finding display method comprises is taken the photograph the body identification step, in this step, the quilt that in said the 1st view data and said the 2nd view data, comprises is taken the photograph body discern; In said colouring information analytical procedure; To at the said said body of being taken the photograph in said the 1st view data that identifies in the body identification step of being taken the photograph, analyze said the 1st colouring information, in said colouring information aligning step; To at the said said body of being taken the photograph in said the 2nd view data that identifies in the body identification step of being taken the photograph, utilize said the 1st colouring information that said the 2nd colouring information is proofreaied and correct.
The real-time view-finding display method of the invention described above is characterised in that; Said real-time view-finding display method comprises camera shooting schema management step; In this step; Opening/closing to the camera shooting pattern that on said electronic viewfinder, shows the said image of being taken the photograph body switches, in said the 1st shooting step, in said camera shooting schema management step with said camera shooting mode switch when opening; Carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
The real-time view-finding display method of the invention described above is characterised in that; Said real-time view-finding display method comprises the posture detection step, in this step, detect said image pickup part towards variation; In said the 1st shooting step; In said posture detection step, detect said image pickup part towards variation the time, carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
The real-time view-finding display method of the invention described above is characterised in that; Said camera has optical system; This optical system can change the zoom ratio of the optical image that incides said image pickup part; In said the 1st shooting step, when generating said the 1st view data, said zoom ratio is set to wide-angle side.
The real-time view-finding display method of the invention described above is characterised in that; Said camera has optical system; This optical system can change the angle of visual field of the optical image that incides said image pickup part, in said the 1st shooting step, under the situation of the said angle of visual field that has changed said optical system; Carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
The real-time view-finding display method of the invention described above is characterised in that said camera has: optical system, and the light of said image pickup part is incided in its convergence; Automatic focusing portion, it automatically adjusts to said being taken the photograph on the body with the focus of said optical system; And switching part; It switches the opening/closing of said automatic focusing portion; In said the 1st shooting step; Switch under the situation about opening in said automatic focusing portion, carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
The real-time view-finding display method of the invention described above is characterised in that; Said real-time view-finding display method comprises the variation determination step; In this step; Judge that quilt in said the 2nd view data takes the photograph body whether variation has taken place, in said the 1st shooting step, in said variation determination step, be judged to be quilt in said the 2nd view data and take the photograph under the situation that body taken place to change; Carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
The real-time view-finding display method of the invention described above is characterised in that; Said real-time view-finding display method comprises the Flash Mode management process; In this step, the opening/closing of the Flash Mode that drives said Lighting Division is managed, in said the 1st shooting step; In said Flash Mode management process, said Flash Mode is managed under the situation about opening, generated said the 1st view data.
According to the present invention; Utilize the 1st colouring information that reproduces the 1st view data of being taken the photograph body sufficient signal strength signal intensity that color is required to be; The 2nd colouring information to reproducing the 2nd view data of being taken the photograph body inadequate signal strength signal intensity that color is required to be carries out colour correction; So, can be implemented under the low-light (level) environment and also can show camera and the real-time view-finding display method of being taken the photograph the body image really to the user via electronic viewfinder.
Description of drawings
Fig. 1 is the routine block diagram of summary internal structure that the camera of execution mode 1 of the present invention is shown.
Fig. 2 is the flow chart of the summary action when the camera shooting pattern of camera of execution mode 1 of the present invention is shown.
Fig. 3 is the flow chart of the summary action when the pseudo-color live view pattern of execution mode 1 of the present invention is shown.
Fig. 4 is the figure that is illustrated in an example of the image of obtaining when driving photoflash lamp in the execution mode 1 of the present invention.
Fig. 5 is browse graph picture and the figure of the browse graph picture after the colour correction that illustrates before the colour correction of execution mode 1 of the present invention.
Fig. 6 is the flow chart of the summary action when the pseudo-color live view pattern of variation 1-1 of execution mode 1 of the present invention is shown.
Fig. 7 is the flow chart of the summary action when the pseudo-color live view pattern of variation 1-2 of execution mode 1 of the present invention is shown.
Fig. 8 is the flow chart of the summary action when the camera shooting pattern of camera of execution mode 2 of the present invention is shown.
Label declaration
1: camera; 101: camera lens; 102: imaging apparatus; 103: actuator driving circuit; 104: actuator; 105: imaging circuit; 106: photoflash lamp; 107:EEPROM; 108: hand is trembled to proofread and correct and is used gyrosensor; 110,120:CPU; 110A: systems control division; 111: camera shooting angle of visual field decision-making function; 112: the photoflash lamp controlled function; 113: clocking capability; 121: image identification function; 122: the image compression decompressing function; 123: colouring information analysis/representational role; 124: taken the photograph the body recognition function; 125: the recording medium access function; 126: camera photosensitive degree decision-making function; 130: internal bus; The 131:A/D change-over circuit; The 132:FIFO memory; 133: frame memory; 134: record buffer memory; 135: the recording medium interface; 136: recording medium; The 141:TFT liquid crystal display drive circuit; 142: video output circuit; 143: back light unit; The 144:TFT liquid crystal panel; 145: video output terminal; 150: key matrix; 151: the first shutters; 152: the second shutters; 153: zoom button; The 161:LCD display circuit; The 162:LCD panel; 163: outside cable data I/F; 171: battery; 172: stand-by power supply; 173: power circuit; 174: test circuit for cell status; 201: the external image display unit; BK0, BK1, BK2: background; IM0: image; IM1: the browse graph picture before the colour correction; IM2: the browse graph picture after the colour correction; OB0, OB1, OB2: taken the photograph body.
Embodiment
Below, specify the best mode that is used for embodiment of the present invention with accompanying drawing.In addition, in following explanation, each figure only roughly illustrates shape, size and position relation with the degree that can understand content of the present invention, therefore, the invention is not restricted to the illustrative shape of each figure, size and position relation.
< execution mode 1 >
Below, use accompanying drawing to specify the camera of execution mode 1 of the present invention.In this execution mode; As this camera; Enumerate so-called digital still image camera or digital video camera as an example, still, the invention is not restricted to this example; For example the mobile PC (personal computer) etc. of the portable telephone of band camera or band camera, have electronic viewfinder or with the various electronic equipments of its same function in, also can use this execution mode 1.
The illustrative camera 1 of this execution mode institute is of the back; For example have: the optical image of taking the photograph body according to the quilt in the image pickup scope generates the image pickup part of view data, to being taken the photograph the Lighting Division that body throws light on and showing the electronic viewfinder of being taken the photograph the body image; Camera 1 also has: the colouring information analysis portion, and it is analyzed the 1st colouring information that comprises in the 1st view data that generates according to the optical image of being taken the photograph body by the quilt of Lighting Division illumination at image pickup part; And colouring information correction portion, it utilizes the 1st colouring information that image pickup part is proofreaied and correct according to the 2nd colouring information of the 2nd view data of the optical image generation of being taken the photograph body when not driving Lighting Division.In the electronic viewfinder of camera 1, the 2nd view data after reproduction is proofreaied and correct the 2nd colouring information.
And, camera 1 have with wireless or wired mode and external device (ED) between carry out data communication Department of Communication Force.Receive the view data of sending from Department of Communication Force through external device (ED).As external device (ED), for example can use image processing apparatus and flash memory (registered trade mark) or external HD various memories such as (hard disks) that various information processors, printer or digit apparatus etc. that personal computer or PDA (Personal Digital Assistants) etc. have Presentation Function have print engine.
Here, use accompanying drawing to specify the summary internal structure example of the camera 1 of this execution mode 1.Fig. 1 is the block diagram that the summary internal structure example of camera 1 is shown.Fig. 2 is the flow chart of the summary action when the camera shooting pattern of camera 1 is shown.The flow chart of the summary action when Fig. 3 is the pseudo-color live view pattern that illustrates among Fig. 2.
As shown in Figure 1; Camera 1 has: the optical system that constitutes by more than one camera lens 101 (below; For the ease of explanation, establishing optical system is camera lens 101), imaging apparatus 102, actuator driving circuit 103, actuator 104, imaging circuit 105, photoflash lamp 106, EEPROM (Electrically Erasable and Programmable Read Only Memory) 107, hand tremble and proofread and correct with gyrosensor 108, CPU (Central Processing Unit) 110 and 120, A/D change-over circuit 131, FIFO memory 132, frame memory (SDRAM) 133, record buffer memory 134, recording medium interface (I/F) 135, recording medium 136, TFT liquid crystal display drive circuit 141, video output circuit 142, back light unit 143, TFT liquid crystal panel 144, key matrix 150, LCD (LiquidCrystal Display) display circuit 161, LCD panel 162, battery 171, stand-by power supply 172, power circuit 173 and test circuit for cell status 174.
In above-mentioned, comprise imaging apparatus 102, imaging circuit 105, CPU 110 and A/D change-over circuit 131 in the image pickup part performance function of interior structure as the optical image generation view data (comprising browsing image data) of taking the photograph body according to the quilt in the image pickup scope.And, comprise photoflash lamp 106 and CPU 110 in interior structure as to being taken the photograph the Lighting Division performance function that body throws light on.Comprise CPU 110, FIFO memory 132, frame memory 133, TFT liquid crystal display drive circuit 141, back light unit 143 and TFT liquid crystal panel 144 and taken the photograph the electronic viewfinder performance function of body image in interior structure as demonstration.And then; Comprise image identification function 121 among the CPU 120, taken the photograph body recognition function 124 and colouring information analysis/representational role 123 in interior structure as colouring information analysis portion performance function, this colouring information analysis portion is analyzed according to the colouring information (the 1st colouring information) that the view data (the 1st view data) of being taken the photograph the optical image generation of body by the quilt of Lighting Division illumination is comprised image pickup part.And then; Among the CPU 120 comprise colouring information analysis/representational role 123 in interior structure as colouring information correction portion performance function; This colouring information correction portion is not when driving Lighting Division; Utilize the colouring information (the 1st colouring information) of view data (the 1st view data), image pickup part is proofreaied and correct according to the colouring information (the 2nd colouring information) of the browsing image data (the 2nd view data) of the optical image generation of being taken the photograph body.Therefore, the browsing image data (the 2nd view data) after the electronic viewfinder reproduction is proofreaied and correct colouring information (the 2nd colouring information) shows the user.
Particularly, camera lens 101 forms the optics shot object image on the sensitive surface of imaging apparatus 102.Imaging apparatus 102 carries out the optics shot object image that on sensitive surface, forms through camera lens 101 is converted into the opto-electronic conversion processing of the signal of telecommunication, generates the signal of telecommunication thus.This imaging apparatus 102 can be used and can carry out solid-state imager, for example CCD (Charge Coupled Device), CMOS (Complementary Metal Oxide Semiconductor) or other various imaging apparatuss that high speed is read.
Imaging circuit 105 is read and the corresponding signal of telecommunication of in each photo-electric conversion element of imaging apparatus 102, accumulating of electric charge, and as picture signal, combination has vertical synchronizing signal and horizontal-drive signal etc. in this picture signal.In addition, the picture signal after just having read is an analog signal.105 pairs of picture signals of being read of imaging circuit are carried out various analog, and the picture signal after handling is input to A/D change-over circuit 131.131 pairs of analog picture signals from imaging circuit 105 outputs of A/D change-over circuit are carried out the A/D conversion process.Thus, convert analog picture signal into DID.
Suitably be input to CPU 120, frame memory 133, FIFO (First-In First-Out) memory 132 or record buffer memory 134 from the view data of A/D change-over circuit 131 outputs.A/D change-over circuit 131, CPU 120, frame memory 133, FIFO memory 132 and record buffer memory 134 for example interconnect via internal bus 130.
Frame memory 133 is to each frame, and interim storage is carried out the view data (also can comprise the various data relevant with this view data etc.) after the Digital Signal Processing by CPU 120.This frame memory 133 for example can be used SDRAM semiconductor memory components such as (Synchronous DRAM) etc.
CPU 120 mainly is made up of a plurality of integrated circuits of carrying out the signal processing control that view data or various data are handled, to carrying out various Digital Signal Processing from the DID of A/D change-over circuit 131 inputs.That is, CPU 120 realizes implementing the more than one function of various signal processing to be stored in view data in the frame memory 133 temporarily.In this function, for example have image identification function 121, image compression decompressing function 122, colouring information analysis/representational role 123, taken the photograph body recognition function 124, recording medium access function 125 and camera photosensitive degree decision-making function 126 etc.
Image compression decompressing function 122 is carried out as inferior various processing: reads the view data that is stored in the frame memory 133 etc. and for example carries out JPEG processed compressed etc., or the decompression of the compressing image data that carries out reading from recording medium 136.Image identification function 121 extracts the characteristic point in the image according to the variation of color that view data comprised etc., comes zone in the recognition image etc. according to this extraction result.Taken the photograph body recognition function 124 according to by the configuration in the zone of image identification function 121 identifications etc., the quilt that is comprised in the recognition image is taken the photograph the shape of body etc.Colouring information analysis/representational role 123 for example confirms to be taken the photograph by the quilt of being taken the photograph 124 identifications of body recognition function each regional colouring information of body, and the same corresponding region of being taken the photograph body that texture and other images comprised of this color or pattern is complementary.The visit of 135 pairs of recording mediums 136 of recording medium access function 125 controlling recording Media Interface Connectors.Camera photosensitive degree decision-making function 126 is according to the DID from 131 outputs of A/D change-over circuit, and whether the light quantity of judging the optical image that incides imaging apparatus 102 is less than pre-set threshold (common minimum photosensitivity).In addition, common minimum photosensitivity is the MIN value of the desired lightness of picture signal that obtains through photography and color etc.Therefore, common minimum photosensitivity is set at following value: under the situation that obtains this camera photosensitive degree more than common minimum photosensitivity, do not need photoflash lamp just can access the picture signal of abundant lightness and color etc.
FIFO memory 132 is as VRAM performance function this picture signal of adhoc buffer when various display unit are exported the picture signal of display object frames, so-called.
In addition; In camera 1; Comprise above-mentioned camera lens 101, imaging apparatus 102, imaging circuit 105, A/D change-over circuit 131, CPU 120 and frame memory 133 in interior structure, realization will convert the signal of telecommunication into by the optical image that the first-class image pickup optical system that constitutes of optical frames forms and generate the image unit of picture signal on the sensitive surface of imaging apparatus.And camera 1 can also have the collection sound function that is made up of microphone etc. of information beyond the picture signal of obtaining, for example voice signal etc. etc.
TFT liquid crystal display drive circuit 141 is according to the picture signal that for example is directed against every line output from FIFO memory 132, drive TFT liquid crystal panel 144.TFT liquid crystal panel 144 is driven by TFT liquid crystal display drive circuit 141, thus, the image of display object and various information etc. is shown.This TFT liquid crystal panel 144 uses and can carry out the colored panel that shows.And back light unit 143 is located at the rear side of TFT liquid crystal panel 144, from rear side TFT liquid crystal panel 144 is thrown light on.
Video output circuit 142 will convert the for example vision signal of NTSC (National Television System Committee) form from the picture signal of FIFO memory 132 into.And, the vision signal of video output circuit 142 after the external device (ED) that is connected with video output terminal 145 (for example external image display unit 201 etc.) output conversion.In addition, video output terminal 145 is that the transmission medium that is connected with vision signal is the splicing ear of vision cable equisignal line.
And; In this execution mode 1; Comprise above-mentioned FIFO memory 132, TFT liquid crystal display drive circuit 141, TFT liquid crystal panel 144 and back light unit 143 in interior structure, realize through reproducing the view data that generates by image unit showing and taken the photograph the still image of body or the display unit of dynamic image to the user.
Record buffer memory 134 is be kept at the buffer memory (interim storage area) that picture signal in the frame memory 133 etc. is used in recording medium 136 time or when recording medium 136 is read view data and be kept at the frame memory 133 etc. as Imagery Data Recording temporarily temporarily.
Recording medium interface (I/F) the 135th is used for the stores processor of subtend recording medium 136 storing image datas etc., reads the circuit that processing etc. is controlled of view data etc. from recording medium 136.
Recording medium 136 is recording image data and other various memory of data.This recording medium 136 for example can use the non-volatile memory medium of the storage card etc. of thin sheet form or card shape.In addition, as recording medium 136, also can use with respect to camera 1 equipment such as grade loading and unloading freely parts or be fixedly installed on parts arbitrarily such as parts in the circuit of device interior such as camera 1.
And, comprise above-mentioned record buffer memory 134, recording medium interface 135, recording medium 136 in interior structure, realize the memory cell of memory image signal various information such as (comprising view data).
CPU 110 sets as main (main) CPU.This CPU 110 controls each circuit of camera 1 inside and controls each structural portion to realize the so-called main control unit performance function of various functions as unified.Therefore, CPU 110 has the whole systems control division 110A of control system through each inner structural portion of suitable control (control) camera l.
The various functions that systems control division 110A realization is controlled the action of camera 1.As this function, for example exist to judge image pickup part the angle of visual field camera shooting angle of visual field decision-making function 11l, management and control Flash Mode opening/closing photoflash lamp controlled function 112 and at the clocking capability 113 of 1 internal control time of camera etc.And, in addition, in systems control division 110A, realize: via the function of the input and output of outside cable data I/F 163 control datas; Show that on LCD panel 162 grades main power source is the function of the surplus of battery 171; The function of the various photography conditions when setting utilizes camera unit to carry out the photography action; Picture signal that merga pass photography action obtains and the various information (related information data) that are associated with picture signal generate the function of the image file that comprises view data; The function that to manage as audio files through the voice signal that sound-recording function is obtained; Various data files according to being recorded in the recording medium are carried out album functions or printing function, perhaps register to set to generate various registration setting datas etc. and it is stored in the function in the recording medium; Carry out in recording medium 136, writing down the function of the control of image file, audio files or the registration setting data etc. that are generated with appropriate format; Make the function of display unit Visual Display based on the image or the related information of image file; Make loud speaker etc. (not shown) output based on the function of the sound of audio files etc., be used for various functions that the exercises and the various function of camera 1 are controlled.
In addition, camera 1 can also have be used for wireless mode and have a radio communication function that carries out the transmitting-receiving of data-signals such as image file between the external device (ED) (not shown) of radio communication function.In realizing the mode of this radio communication function, for example exist based on the light wireless connections of Wireless USB (WUSB) mode, ultra broadband (UWB) wireless connections mode, IrDA (Infrared DataAssociation) mode etc.
Actuator 104 is to be used for carrying out the drive source that auto-focus is regulated (focusing (AF) automatically) action and zoom action etc. through driving camera lens 101.Actuator driving circuit 103 is the circuit that come driving actuator 104 according to the control of CPU 110.
That is, comprise actuator 104 and actuator driving circuit 103, as through making camera lens 101 move the automatic focusing action of carrying out shot object image or become the lens driving unit performance function of doubly action etc. along its optical axis in interior structure.
And; EEPROM 107 is non-volatile memory mediums of various setting datas or the inherent data of the data etc. that are used for storing communication setting information that preservation waits, is used for communicating with external device (ED) by the handling procedure (application software) that CPU 110, CPU 120 carry out etc., camera 1 etc., brings into play function as the communication setting memory.It is known flash memory (Flash ROM) etc. that this EEPROM 107 for example can use the erasable nonvolatile memory that removes.
And photoflash lamp 106 is to being taken the photograph the light source of the light that body throws light on, for example by xenon lamp or LED formations such as (Light Emitting Diode) in when photography radiation.Hand is trembled to proofread and correct with gyrosensor 108 and is detected the inclination direction of generation in camera 1 and the angular speed of pitch orientation, detects the shake of camera 1 according to detected angular speed.
Key matrix 150 comprises various console switchs and the action button etc. of the camera 1 of first shutter 151 and second shutter 152 etc.In addition, first shutter 151 for example is to detect the key partly pressed of user to shutter release button (not shown), second shutter 152 for example be detect the user to shutter release button entirely by key.For example detect through first shutter 151 shutter release button half by situation under, carry out focusing action automatically through CPU 110.On the other hand, for example detect through second shutter 152 shutter release button entirely by situation under, carry out the shooting action through CPU 110.
And, in other functional units that key matrix 150 is comprised, for example comprise the power knob that the power supply status of camera 1 is switched to the state of being switched on or switched off; When action photography during as the zoom button performance function of change photography multiplying power, in reproducing movement as the enlarged and displayed of reproduced image or dwindle the zoom button (TW button) 153 of the demonstration switching push button performance function of demonstration etc.; Access a plurality of various action buttons that menu screen etc. distributes various functions; Carry out four directions that the selection in the menu screen etc. sets to options button (being also referred to as cross key); The OK button that the project of using various action buttons to select is determined indicate etc.
And, in this key matrix 150, comprise above-mentioned various functional unit, with these functional units produce linkedly respectively the regulation index signal switch block, pass on from the circuit of the index signal of each switch block etc.And the user is through operating, to the various index signals of CPU 110 enter key matrixes 150 generations.
LCD display circuit 161 drives LCD panel 162 according to the control from CPU 110, on LCD panel 162, shows various information thus.LCD panel 162 is for example by small-sized liquid crystal indicator formations such as (LCD); According to the driving of LCD display circuit 161, the various set informations of the information that shutter speed when the pattern information of the photography conditions that demonstration has been set in camera 1, for example photograph mode etc., the number information that can be stored in the image in the recording medium 136, photography or f-number etc. are relevant with exposure etc.
Outside cable data interface (I/F) the 163rd is used between camera 1 and external device (ED) (not shown), carrying out the connecting interface of the transmission (transmitting-receiving) of view data etc.This outside cable data I/F 163 for example can use the interface according to USB (Universal Serial Bus) standard or IEEE1394 standard etc.In this execution mode, enumerate use according to the interface of USB standard example as the situation of outside cable data I/F 163.
Battery 171 is master (main) power supplys of camera 1.This battery 171 is for example used the secondary cell that waits primary cell or chargeable storage battery etc. of dry cell etc.Stand-by power supply 172 is for all the time to supply capabilities such as the internal storage of camera 1 or internal clockings and pair (sub) power supply that is provided with.From the electric power of this stand-by power supply 172 for example with acting on the various set points that keep in the camera 1 and date temporal information etc. or the electric power of the temporal information that on LCD panel 162 etc., shows date all the time.
Power circuit 173 is suitably supplied with the electric power from battery 171 or stand-by power supply 172 according to the control from CPU 110 to camera 1 each inner circuit.Test circuit for cell status 174 is according to from the supply voltage of battery 171 etc., detects the state of the surplus etc. of battery 171, to CPU 110 these testing results of output.
In addition, do not have the structure of associated parts to be and the common general roughly the same structures of camera such as digital still image camera, omit its detailed icon and explanation with the present invention.
Then, specify the action of the camera 1 of this execution mode 1 with reference to Fig. 2 and Fig. 3.Wherein, In following explanation, the action (action during the camera shooting pattern) when being conceived on the TFT liquid crystal panel 144 as the part performance function of electronic viewfinder, roughly show in real time image from imaging apparatus 102 (below be called the browse graph picture) describes.Other actions can be and the general roughly the same actions of camera such as digital still image camera usually.For example, the active after camera 1 starting is done with general usually cameras such as digital still image camera roughly the same.Therefore, below, be purpose with the simplified illustration, omit its detailed icon and explanation.
When power knob in user's operation keys matrix 150 or lens cap etc., the action (camera shooting schema management step) of camera 1 when initiatively making the camera shooting pattern shown in Figure 2 of starting in the flow process.In addition, the camera shooting pattern is to go up at electronic viewfinder (particularly the TFT liquid crystal panel 144) to show the pattern of being taken the photograph the body image.For example in CPU 110, the opening/closing of this camera shooting pattern is managed.In other words, the CPU 110 camera shooting schema management portion performance function of managing as the opening/closing of camera photograph mode.
In the action when the camera shooting pattern, as shown in Figure 2, at first, camera 1 is carried out initialization process (step S101) under the control of CPU 110.Particularly, for example CPU 110 makes camera lens 101 move to initial position, and refreshes imaging apparatus 102 through actuator driving circuit 103 driving actuator 104.
Then, the camera 1 executive real-time photography (step S102) of finding a view.Particularly, under the control of CPU 110, drive imaging circuit 105, read and the corresponding signal of telecommunication of electric charge accumulation amount, generate analog picture signal, this picture signal is input to A/D change-over circuit 131 from imaging apparatus 102.131 pairs of analog picture signals of being imported of A/D change-over circuit are carried out the A/D conversion process, generate DID thus.View data after the A/D conversion is directly inputted to FIFO memory 132 through the total line traffic control based on internal bus 130, perhaps is input to FIFO memory 132 after the Digital Signal Processing by CPU 120 enforcement regulations.On the other hand, drive TFT liquid crystal display drive circuit 141 under the control of CPU 110 is read view data to every row from FIFO memory 132, be entered into TFT liquid crystal panel 144.At this moment, CPU 110 lights back light unit 143.Thus, on TFT liquid crystal panel 144, roughly show image in real time, as the browse graph picture based on the view data of reading from imaging apparatus 102 as the part of electronic viewfinder.
Then, camera 1 is according to the view data that in the live view photography of step S102, generates, and whether the camera photosensitive degree of judging imaging apparatus 102 is less than predefined common minimum photosensitivity (step S103).Particularly, under the control of internal bus 130, will be input to CPU 120 from the DID of A/D change-over circuit 131 outputs.CPU 120 starting camera photosensitive degree decision-making functions 126 carry out this action; Thus; Calculate the light quantity of the optical image that incides imaging apparatus 102 according to the view data of being imported, judge that whether the camera photosensitive degree of obtaining according to this calculated value is less than predefined common minimum photosensitivity.
Result of determination at step S103 is that (step S103: not), camera 1 is transferred to common live view pattern, and carrying out should action (step S104) under the situation more than the common minimum photosensitivity for the camera photosensitive degree.In common live view pattern, the picture signal that obtains from imaging apparatus 102 is input to TFT liquid crystal display drive circuit 141 via A/D change-over circuit 131 and FIFO memory 132.Therefore, show directly that on TFT liquid crystal panel 144 this image is as the browse graph picture.
On the other hand, be (step S103: be) under the situation of camera photosensitive degree less than common minimum photosensitivity in the result of determination of step S103, camera 1 is transferred to pseudo-color live view pattern, and carrying out should action (step S105).In addition, below, the details of pseudo-color live view pattern is described with reference to Fig. 3.
After the action when the pseudo-color live view pattern of the common live view pattern of execution in step S104 or step S105, camera 1 returns initiatively and does.
Action when then, using Fig. 3 to specify the pseudo-color live view pattern shown in the step S105 of Fig. 2.In the action when pseudo-color live view pattern, as shown in Figure 3, at first, camera 1 is set to wide-angle side (step S111) with zoom ratio under the control of CPU 110.That is, when image pickup part generated view data (the 1st view data), the optical system that comprises camera lens 101 was set to wide-angle side with zoom ratio.Particularly, for example CPU 110 makes camera lens 101 move to wide-angle side through actuator driving circuit 103 driving actuator 104.Thus, on the sensitive surface of imaging apparatus 102, form under the technical conditions of camera 1 optical image of wide-angle.
Then, camera 1 driving photoflash lamp 106 (step S112) under the control of CPU 110, particularly photoflash lamp controlled function 112.Thus, the camera coverage to camera 1 throws light at least, and, on the sensitive surface of imaging apparatus 102, be formed for the optical image of the abundant light quantity of reproducing color therewith information.
Then, camera 1 drives imaging circuit 105 under the control of CPU 110, reads picture signal (step S113: the 1st shooting step) from imaging apparatus 102 thus.At this moment, the control through step S112 drives photoflash lamp 106, so, on imaging apparatus 102, form the optical image of abundant light quantity.Therefore, the picture signal of the image I M0 that reads from imaging apparatus 102 is as shown in Figure 4, has the color that reproduction taken the photograph body OB0 and background BK0 and is required to be sufficient signal strength signal intensity (colouring information).In addition, Fig. 4 is the figure that the example of the image I M0 that obtains when driving photoflash lamp 106 is shown.And the picture signal of being read is input to after A/D change-over circuit 131 carries out the A/D conversion process, outputs to internal bus 130 as DID (the 1st view data).Internal bus 130 total line traffic control according to the rules is input to CPU 120 with DID.
Like this; In this execution mode; At CPU 110 (camera shooting schema management portion) when opening the camera shooting pattern; Lighting Division and image pickup part carry out at least once handling as follows: taken the photograph body and throw light on said, and generate view data (the 1st view data) according to the optical image that the quilt that is thrown light on is taken the photograph body.
Then; Camera 1 is to the view data that is input to CPU 120; Each that extract that this view data comprises taken the photograph the colouring information (the 1st colouring information) in body (or its zone), for example it is stored in (step S114: the colouring information analytical procedure) in not shown high-speed cache etc.Particularly, at first, CPU 120 accesses image identification function 121, makes this image identification function 121 extract the characteristic point in the image according to the component of the color that view data comprised and gray scale etc., extracts zone in the recognition image as a result etc. according to this.Then, CPU 120 accesses and is taken the photograph body recognition function 124, makes this quilt take the photograph body recognition function 124 according to by the configuration in the zone of image identification function 121 identifications etc., and the quilt that is comprised in the recognition image is taken the photograph (being taken the photograph the body identification step) such as the shapes of body.Then, CPU 120 accesses colouring information analysis/representational role 123, makes this colouring information analysis/representational role 123 confirm to be taken the photograph by the quilt of being taken the photograph 124 identifications of body recognition function each regional colouring information of body.Each regional colouring information that the quilt that obtains is thus taken the photograph body is stored in not shown high-speed cache etc. as stated.In addition, the colouring information of being stored also comprises the shape information of being taken the photograph body, the information of for example color region.
Then, camera 1 through actuator driving circuit 103 driving actuator 104, makes camera lens 101 return initial position (step S115) under the control of CPU 110 thus.
Then, camera 1 drives imaging circuit 105 under the control of CPU 110, reads picture signal as browse graph picture (the 2nd view data) (step S116: the 2nd shooting step) from imaging apparatus 102 thus.At this moment, do not drive photoflash lamp 106, so the light quantity of the optical image that on the sensitive surface of imaging apparatus 102, forms is little.Therefore, the browse graph before the colour correction of reading from imaging apparatus 102 shown in Fig. 5 (a), becomes the required inadequate signal strength signal intensity of color (colouring information) that body OB1 and background BK1 are taken the photograph in reproduction as the signal strength signal intensity (colouring information) of the picture signal of IM1.In addition, Fig. 5 illustrates the figure of browse graph before the colour correction of this execution mode browse graph after as IM1 and colour correction as IM2 (with reference to Fig. 5 (b)).And the entity that the quilt among Fig. 5 (a) is taken the photograph body OB1 and background BK1 is identical with the entity that the quilt among Fig. 4 and Fig. 5 (b) is taken the photograph body OB0, OB2 and background BK0, BK2.And then the picture signal of in step S116, reading is input to after A/D change-over circuit 131 carries out the A/D conversion process, is input to internal bus 130 as DID.Internal bus 130 total line traffic control according to the rules is input to CPU 120 with DID.
Then, camera 1 is carried out the graphical analysis (step S117) of the view data that is input to CPU 120.In addition,, will in this step S117, the view data as analytic target be called browsing image data, will be called the browse graph picture based on the image of this view data for the ease of explanation.In step S 117; Particularly, at first, CPU 120 accesses image identification function 121; Make this image identification function 121 extract the characteristic point in the image, extract zone in the recognition image as a result etc. according to this according to the component of the color that browsing image data comprised and gray scale etc.Then, CPU 120 accesses and is taken the photograph body recognition function 124, makes this quilt take the photograph body recognition function 124 according to by the configuration in the zone of image identification function 121 identifications etc., and the quilt that is comprised in the identification browse graph picture is taken the photograph the shape of body etc.
Then; Camera 1 reads out in each of storing among the step S114 and is taken the photograph the colouring information (the 1st colouring information) in body (or its zone), the colouring information of being read and the quilt of in the graphical analysis of step S117, confirming is taken the photograph body (or its zone) check (step S118).Particularly; CPU 120 accesses colouring information analysis/representational role 123; And; Read out in each of storing among the step S114 and taken the photograph the colouring information in body (or its zone), make colouring information analysis/representational role 123 confirm to be taken the photograph that body recognition function 124 discerns that each is taken the photograph the colouring information in body (or its zone) in this step S117.
Each colouring information of being taken the photograph body (or its zone) really usual practice as realizing as follows: between the browsing image data of the view data of step S114 and this step S117, calculate each regional dynamic vector; Between view data and browse graph picture, confirm corresponding zone according to this dynamic vector, confirm the colouring information of this corresponding region according to the colouring information of in step S114, storing.
Then; Camera 1 is taken the photograph the colouring information (the 1st colouring information) in body (or its zone) according to each that in step S118, confirm, in step S116 as browse graph look like to read view data comprised that each colouring information (the 2nd colouring information) of being taken the photograph body (or its zone) is proofreaied and correct (step S119: the colouring information aligning step).Thus; As the browse graph before the colour correction shown in Fig. 5 (a) as the browse graph of IM1 after the colour correction shown in Fig. 5 (b) as IM2, the browse graph of demonstration on as the TFT liquid crystal panel 144 of the part of electronic viewfinder is looked like to carry out colour correction (reproduction step).In addition; Here; Each colouring information of being taken the photograph after the correction in body (or its zone) can carry out various distortion, and the color of for example taking the photograph body (or its zone) for the information of each the regional average color in the view data, the quilt that will in step S114, confirm directly is used as the information of texture etc.And the browsing image data after the colour correction is buffered in the FIFO memory 132 via internal bus 130 temporarily.Then, drive TFT liquid crystal display drive circuit 141 under the control of CPU 110 is read browsing image data to every row from FIFO memory 132, according to this browsing image data drive TFT liquid crystal panel 144.Thus, the browse graph after display color on the TFT liquid crystal panel 144 is proofreaied and correct is as IM2 (with reference to Fig. 5 (b)).
Then, to detect the posture (in other words for imaging apparatus 102 towards) of camera 1 self be camera pose information (step S120: the posture detection step) for camera 1.That is, the camera 1 of this execution mode have to image pickup part towards the posture detecting part that detects of variation.This camera pose detection of information for example can realize through the whole bag of tricks such as following methods: confirm the camera pose of camera 1 according to the browsing image data that in step S116, is taken into, thereby judge the method whether this posture significantly changes; Tremble to proofread and correct and be used for posture detection being located at hand in the camera 1, detect the method etc. of the posture of camera 1 with gyrosensor 108 (with reference to Fig. 1).
Then; Camera 1 judges whether camera pose information surpasses the predetermined limit (threshold value), be camera 1 photography direction towards or the composition of the optical image that on imaging apparatus 102, forms whether significantly change (step S121); Under the situation that the variation of camera pose oversteps the extreme limit (step S121: be); Return step S111, the view data during once more according to driving photoflash lamp 106 obtains the colouring information that each is taken the photograph body (or its zone).
Promptly; In this execution mode 1; Posture detecting part detect image pickup part towards the situation of variation under; Lighting Division and image pickup part carry out at least once handling as follows: thrown light on to taking the photograph body, and generate view data (the 1st view data) according to the optical image that the quilt that is thrown light on is taken the photograph body, obtain its colouring information (the 1st colouring information).
But; The invention is not restricted to the situation that above-mentioned camera pose changes; For example also can constitute, detect when having changed the situation etc. of the zoom ratio or the angle of visual field with manual or automatic mode, Lighting Division and image pickup part carry out at least once handling as follows: thrown light on to taking the photograph body; And generate view data (the 1st view data) according to the optical image that the quilt that is thrown light on is taken the photograph body, obtain its colouring information (the 1st colouring information).
On the other hand; If the result of determination of step S121 is variation (the step S121: not) of the camera pose that do not overstep the extreme limit; Then camera 1 is judged the end indication (step S122) of whether having imported the action of the browse graph picture after display color on the TFT liquid crystal panel 144 is proofreaied and correct from for example key matrix 150; (step S122: not), return step S116, obtain new browse graph picture under the situation of the end indication of not importing this browse graph picture demonstration; After it is carried out colour correction, the browse graph picture after display color on the TFT liquid crystal panel 144 is proofreaied and correct.Thus, the browse graph picture after display color is proofreaied and correct on as the TFT liquid crystal panel 144 of the part of electronic viewfinder is as the live view image.On the other hand, under the situation of having imported the end indication that the browse graph picture shows (step S122: be), the action when camera 1 returns the camera shooting pattern of Fig. 2.
That kind as described above; In this execution mode 1; Utilize the colouring information (the 1st colouring information) that reproduces the view data (the 1st view data) of being taken the photograph body sufficient signal strength signal intensity that color is required to be that comprises background, the colouring information (the 2nd colouring information) that reproduction is comprised the browsing image data (the 2nd view data) of being taken the photograph body inadequate signal strength signal intensity that color is required to be of background carries out colour correction.Its result in this execution mode, also can show the user via electronic viewfinder under the low-light (level) environment and taken the photograph the body image really.
And, can on electronic viewfinder, show the identical image of image when driving photoflash lamp 106, so, can reduce the image when being taken into image and the image that is taken between the difference of tone.Its result also can realize uncomfortable operability seldom to the user even can provide in the dark.
In addition, the quilt among the CPU 120 is taken the photograph body recognition function 124 and is taken the photograph the quilt that body discerns as the quilt that view data (the 1st view data) and browsing image data (the 2nd view data) are comprised and take the photograph body identification part performance function.Therefore, colouring information extraction portion analyzes colouring information (the 1st colouring information) to being taken the photograph body by each quilt in the view data (the 1st view data) of being taken the photograph the identification of body identification part.And; Colouring information correction portion utilizes the colouring information (the 1st colouring information) of view data (the 1st view data) that colouring information (the 2nd colouring information) is proofreaied and correct to being taken the photograph body by each quilt in the browsing image data (the 2nd view data) of being taken the photograph the identification of body identification part.
(variation 1-1)
The renewal of in addition, being taken the photograph the colouring information of body is not limited to the situation (the step S 121 of Fig. 3: be) that the variation of camera pose oversteps the extreme limit.For example also can constitute, when the user aims at specific quilt and takes the photograph body, upgrade the colouring information that this quilt is taken the photograph body.Below, the variation 1-1 as this execution mode 1 describes with this situation.When in addition, body is taken the photograph in aiming for example is that first shutter 151 detects partly on time waiting of shutter release button.
Fig. 6 is the flow chart of the summary action when the pseudo-color live view pattern of this variation 1-1 is shown.In addition, the structure of camera 1 and the action when initiatively doing with the camera shooting pattern thereof are identical with above-mentioned execution mode 1, so, detailed here.
As shown in Figure 6; In the action when the pseudo-color live view pattern of this variation 1-1; At first; Step S111～the S121 of the action during with shown in Figure 3 pseudo-color live view pattern is same, and camera 1 is being according to being set to the view data that obtains under the state of wide-angle side with camera lens 101, and each that obtains that this view data comprises taken the photograph the colouring information of body (or its zone) and stored; Then, the quilt that uses the colouring information stored that the browse graph picture of obtaining is successively comprised is taken the photograph the color of body (or its zone) and is carried out colour correction.
Then; Whether first shutter 151 in the camera 1 decision bond matrix 150 detects half of shutter release button (not shown) and presses (step S131); Detect half by situation under (step S131: be); Driving photoflash lamp 106 under the control of CPU 110, particularly photoflash lamp controlled function 112 is being optimal luminescent amount (step S132) to taking the photograph body as the quilt of the target of automatically focus (AF).Particularly, utilize and the common identical action of automatic focusing action, confirm that the quilt that image pickup scope comprises takes the photograph body, from the table that the luminous quantity of registration is in advance managed, obtain to this quilt and take the photograph the luminous quantity that body is the photoflash lamp 106 of the best.
In addition, the photoflash lamp controlled function 112 through CPU 110 and comprise CPU 120, actuator driving circuit 103, actuator 104 in interior automatic focusing portion is carried out automatic focusing action.Promptly; Confirm to be taken the photograph body through the graphical analysis among the CPU 120; The photoflash lamp controlled function 112 automatic driving actuator drive circuits 103 of CPU 110 are controlled the position of actuator 104 on optical axis, so that the focusing of the focus of camera lens 101 is taken the photograph on the body at this quilt of confirming.
And, whether detect partly pressing of shutter release button (not shown) through first shutter 151, switch the opening/closing of automatic focusing portion.That is, first shutter 151 in the key matrix 150 and the switching part performance function of CPU 110 as the opening/closing of the automatic focusing of switching portion.
As stated, when obtaining when being taken the photograph the optimal luminescent amount of body, then, the photoflash lamp controlled function 112 of CPU 110 drives photoflash lamp 106 with determined luminous quantity.In addition, the result of determination of step S131 for do not detect through first shutter 151 half by situation under (step S131: not), camera 1 is transferred to step S122.
Then, camera 1 drives imaging circuit 105 under the control of CPU 110, read picture signal (step S133) from imaging apparatus 102 thus.At this moment, the controlling and driving through step S132 photoflash lamp 106, so, the optical image of the abundant light quantity of imaging on imaging apparatus 102.Therefore, the picture signal of the image of reading from imaging apparatus 102 and situation shown in Figure 4 are same, have the color that reproduction taken the photograph body and background and are required to be sufficient signal strength signal intensity.And the picture signal of being read is input to after A/D change-over circuit 131 carries out the A/D conversion process, outputs to internal bus 130 as DID.Internal bus 130 total line traffic control according to the rules is input to CPU 120 with DID.
Then, camera 1 is same with step S114, and to the view data that is input to CPU 120, each that extract that this view data comprises taken the photograph the colouring information in body (or its zone), for example it is stored in the not shown high-speed cache etc. (step S134).Then, camera 1 returns step S116.
As stated; In this variation 1-1; Switch under the situation about opening in automatic focusing portion; Lighting Division and image pickup part carry out at least once handling as follows: thrown light on to taking the photograph body, and generate view data (the 1st view data) according to the optical image that the quilt of illumination is taken the photograph body, obtain colouring information (the 1st colouring information).Thus, the situation to the user hopes to discern the most correct color of being taken the photograph body can show more accurate colouring information.
In addition, other structures are identical with above-mentioned execution mode 1 or its variation with action and effect.
(variation 1-2)
And then, for example also can constitute, the quilt that image comprised take the photograph body when changing or being taken the photograph body itself and be replaced by other and taken the photograph body, upgrade the colouring information of being taken the photograph body.Below, the variation 1-2 as this execution mode 1 describes with this situation.
Fig. 7 is the flow chart of the summary action when the pseudo-color live view pattern of this variation 1-2 is shown.In addition, the structure of camera 1 and the action when initiatively doing with the camera shooting pattern thereof are identical with above-mentioned execution mode 1, so, detailed here.
As shown in Figure 7; In the action when the pseudo-color live view pattern of this variation 1-2; At first; Step S111～the S121 of the action during with shown in Figure 3 pseudo-color live view pattern is same, and camera 1 is being according to being set to the view data that obtains under the state of wide-angle side with camera lens 101, and each that obtains that this view data comprises taken the photograph the colouring information of body (or its zone) and stored; Then, the quilt that uses the colouring information stored that the browse graph picture of obtaining is successively comprised is taken the photograph the color of body (or its zone) and is carried out colour correction.
Then, the similarity of being taken the photograph between the body by the quilt that view data comprised of taking the photograph body and in step S113, obtain that browsing image data comprised that in step S116, obtains of 1 pair of camera is discerned (step S141).Particularly, the browsing image data that will in step S116, obtain via internal bus 130 is input to CPU 120.After CPU 120 is transfused to browsing image data; At first access image identification function 121; Make this image identification function 121 extract the characteristic point in the image, extract zone in the recognition image as a result etc. according to this according to the component of the color that view data comprised and gray scale etc.Then, CPU 120 accesses and is taken the photograph body recognition function 124, makes this quilt take the photograph body recognition function 124 according to by the configuration in the zone of image identification function 121 identifications etc., and the quilt that is comprised in the recognition image is taken the photograph the shape of body etc.Then; CPU 120 accesses colouring information analysis/representational role 123; The shape etc. that makes 123 pairs of this colouring information analysis/representational roles taken the photograph body by the shape of being taken the photograph body that browsing image data comprised of being taken the photograph 124 identifications of body recognition function etc. and the quilt that in step S114, comprised with colouring information image stored data compares, and discerns similarity (perhaps also can be the degree of correlation) according to this comparative result.
Then; Camera 1 judges whether the similarity of in step S141, discerning surpasses pre-set threshold (step S142: change determination step); Surpassing under the situation of threshold value (step S142: be); Same with the action of the step S132 that in above-mentioned variation 1-1, uses Fig. 6～S134 explanation, drive photoflash lamp 106 and also take out view data, obtain the colouring information that this view data comprises and store.Then, camera 1 returns step S116.In addition, the result of determination at step S142 is that similarity is that (step S142: not), camera 1 is transferred to step S122 under the situation below the threshold value.
Promptly; In this variation; Comprise image identification function 121 among the CPU 120, taken the photograph body recognition function 124 and colouring information analysis/representational role 123, as judging that the quilt in the browsing image data (the 2nd view data) takes the photograph the variation detection unit performance function whether body changes in interior structure.
As stated; In this variation 1-2; Quilt in that the variation detection unit is judged to be in the browsing image data (the 2nd view data) is taken the photograph under the situation of body variation; Lighting Division and image pickup part carry out at least once handling as follows: thrown light on to taking the photograph body, and generate view data (the 1st view data) according to the optical image that the quilt of illumination is taken the photograph body, obtain colouring information (the 1st colouring information).When thus, the quilt in the browse graph picture is taken the photograph body and significantly changed etc., when being difficult to proofread and correct the colouring information of being taken the photograph body, can upgrade colouring information automatically.
In addition, other structures are identical with above-mentioned execution mode 1 or its variation with action and effect.
< execution mode 2 >
And, in above-mentioned execution mode 1, with user's consciousness irrespectively, photoflash lamp 106 is luminous automatically.But, according to the photography situation, exist the user hope to avoid photoflash lamp 106 in the luminous situation of unconscious timing, hope to avoid the luminous situation etc. of photoflash lamp 106 itself.In order to tackle this situation, for example can constitute, be set under the situation about opening at the Flash Mode of camera 1, carry out the pseudo-color live view pattern shown in the above-mentioned execution mode 1.Below, as execution mode 2 of the present invention, use accompanying drawing to be elaborated this situation.In addition, Flash Mode is following pattern: when photography, second shutter 152 detect shutter release button entirely on time, carry out 106 pairs of quilts of driving photoflash lamp and take the photograph the action that body throws light on.And, below for easy, omit the structure identical and the detailed description of action with above-mentioned execution mode 1 or its variation.
The camera of this execution mode 2 can adopt the structure identical with the illustrative camera of 1 of above-mentioned execution mode 1.Therefore, in this execution mode 2, Applied Photography device 1 describes.
Fig. 8 is the flow chart of the summary action when the camera shooting pattern of camera 1 of this execution mode 2 is shown.As shown in Figure 8; When the power knob in user's operation keys matrix 150 or lens cap etc.; The identical action of action when camera 1 is carried out the camera shooting pattern of explaining with the step S101～S103 that in above-mentioned execution mode 1, uses Fig. 2; Thus, judge that current camera photosensitive degree is whether less than as common minimum photosensitivity and preset threshold.
Result of determination at step S103 is that (step S103: not), camera 1 is transferred to common live view pattern, and carrying out should action (step S104) under the situation more than the common minimum photosensitivity for the camera photosensitive degree.On the other hand, be (step S103: be) under the situation of camera photosensitive degree less than common minimum photosensitivity in the result of determination of step S103, camera 1 is judged whether Flash Mode is set at and is opened (step S201).For example the photoflash lamp controlled function 112 of CPU 110 can be carried out this judgement thus with reference to the setting data that is stored in the camera 1 in EEPROM 107 grades.
Result of determination at step S201 is that Flash Mode is set at (step S201: be) under the situation about opening, and camera 1 is transferred to pseudo-color live view pattern, and carrying out should action (step S105).On the other hand, be not set at (step S201: deny) under the situation about opening at Flash Mode, camera 1 is transferred to common live view pattern, and carrying out should action (step S104).In addition, the action of the action during pseudo-color live view pattern during with live view pattern usually is identical with above-mentioned execution mode 1 or its variation, so, detailed here.And after transferring to pseudo-color live view pattern or after transferring to common live view pattern, camera 1 returns initiatively and does.
In addition, in Flash Mode, for example whether the camera photosensitive degree of basis judgement in camera photosensitive degree decision-making function 126 is lower than the next transfer automatically of common minimum photosensitivity, or passes through user's operation manual transfer.For example in the photoflash lamp controlled function 112 of CPU 110, the opening/closing of this Flash Mode is managed (Flash Mode management process).In other words, the photoflash lamp controlled function 112 of CPU 110 is as the Flash Mode management department performance function that the opening/closing of Flash Mode is managed.
As stated, in this execution mode 2, open under the situation of Flash Mode at CPU 110 (Flash Mode management department), Lighting Division and image pickup part generate view data (the 1st view data), obtain colouring information (the 1st colouring information).Thus, in the time need not driving photoflash lamp 106 or not hope to drive photoflash lamp 106, can avoid driving automatically the situation of photoflash lamp 106.
In addition, other structures are identical with above-mentioned execution mode 1 or its variation with action and effect.
And above-mentioned execution mode only is used for the example of embodiment of the present invention, the invention is not restricted to this; The situation of carrying out various distortion according to specification etc. is also contained in the scope of the present invention; And then, can know according to above-mentioned record, can comprise other various execution modes within the scope of the invention.For example; In above-mentioned each execution mode and variation thereof, enumerated the example that carries out the situation of colour correction when photograph under whole disappearance of colouring information or the low lighting environment that reduces (for example dark place) etc., still; The invention is not restricted to this; For example, in the photography under the part of the medium color component of water disappearance or the environment that reduces, also can use the present invention.

Claims (8)

1. camera; This camera has: the optical image of taking the photograph body according to the quilt in the image pickup scope generate view data image pickup part, taken the photograph the Lighting Division that body throws light on and reproduced the said electronic viewfinder of being taken the photograph the view data of body that generates by said image pickup part said
This camera is characterised in that,
This camera has:
The colouring information analysis portion, it is analyzed the 1st colouring information that comprises in the 1st view data that generates according to the said optical image of being taken the photograph body by said Lighting Division illumination at said image pickup part;
Colouring information correction portion, it utilizes the 2nd colouring information of the 2nd view data that said the 1st colouring information generates according to the said optical image of being taken the photograph body said image pickup part to proofread and correct when not driving said Lighting Division; And
Taken the photograph the body identification part, it is taken the photograph body to the quilt that in said the 1st view data and said the 2nd view data, comprises and discerns,
Said the 2nd view data after said electronic viewfinder reproduction is proofreaied and correct said the 2nd colouring information; Said colouring information analysis portion is to being taken the photograph by said that in said the 1st view data that identifies the body identification part each is said is taken the photograph body; Analyze said the 1st colouring information; Said colouring information correction portion utilizes said the 1st colouring information that said the 2nd colouring information is proofreaied and correct to by said each said body of being taken the photograph of being taken the photograph in said the 2nd view data that identifies the body identification part.
2. camera according to claim 1 is characterized in that,
Said camera has camera shooting schema management portion, and this camera shooting schema management portion manages the opening/closing of the camera shooting pattern that on said electronic viewfinder, shows the said image of being taken the photograph body,
When said camera shooting schema management portion opens said camera shooting pattern; Said Lighting Division and said image pickup part carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
3. camera according to claim 1 is characterized in that,
Said camera has posture detecting part, this posture detecting part detect said image pickup part towards variation,
Said posture detecting part detect said image pickup part towards variation the time; Said Lighting Division and said image pickup part carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
4. camera according to claim 1 is characterized in that,
Said camera has optical system, and this optical system can change the zoom ratio of the optical image that incides said image pickup part,
When said image pickup part generated said the 1st view data, said optical system was set to wide-angle side with said zoom ratio.
5. camera according to claim 1 is characterized in that,
Said camera has optical system, and this optical system can change the angle of visual field of the optical image that incides said image pickup part,
Under the situation of the said angle of visual field that has changed said optical system, said Lighting Division and said image pickup part carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
6. camera according to claim 1 is characterized in that,
Said camera has:
Optical system, the light of said image pickup part is incided in its convergence;
Automatic focusing portion, it automatically adjusts to said being taken the photograph on the body with the focus of said optical system; And
Switching part, it switches the opening/closing of said automatic focusing portion,
Be switched under the situation about opening in said automatic focusing portion, said Lighting Division and said image pickup part carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
7. camera according to claim 1 is characterized in that,
Said camera has the variation detection unit, and this variation detection unit judges that the quilt in said the 2nd view data takes the photograph body whether variation has taken place,
Being judged to be quilt in said the 2nd view data at said variation detection unit takes the photograph under the situation that body taken place to change; Said Lighting Division and said image pickup part carry out at least once handling as follows: taken the photograph body and throw light on said, and generate said the 1st view data according to the optical image that the quilt of this illumination is taken the photograph body.
8. camera according to claim 1 is characterized in that,
Said camera has Flash Mode management department, and this Flash Mode management department manages the opening/closing of the Flash Mode that drives said Lighting Division,
Opened under the situation of said Flash Mode in said Flash Mode management department, said Lighting Division and said image pickup part generate said the 1st view data.
CN2010101136602A 2009-03-24 2010-02-05 Imaging apparatus and real-time view-finding display method Expired - Fee Related CN101848335B (en)

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