CN1221127C - Camera and camera system - Google Patents
Camera and camera system Download PDFInfo
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- CN1221127C CN1221127C CN 03138093 CN03138093A CN1221127C CN 1221127 C CN1221127 C CN 1221127C CN 03138093 CN03138093 CN 03138093 CN 03138093 A CN03138093 A CN 03138093A CN 1221127 C CN1221127 C CN 1221127C
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Abstract
To provide a camera and a camera system which have a function of storing high-definition image data, while being capable of recognizing a display image of smooth movement with an external device in photographing. The camera is provided with an imaging means 22 for imaging an object to obtain an electronic image, an image processing means 23 for processing a signal output from the means 22 to generate digital image data, a reduction means 24 for applying compression processing or decimation processing to the image data output from the means 23, and a communication means 25 for transmitting the image data to the external device. In this camera, the means 24 sets a compression rate of the image data before inputting an imaging command signal so that the rate is higher than that after inputting the imaging command signal or the decimation amount is large.
Description
Technical field
The present invention relates to a kind of camera arrangement, be specifically related to a kind of camera arrangement that external device (ED) and camera and external device (ED) can intercom mutually that has.
Background technology
Following so-called digital camera is well-known, it will be by the subject body image of photographic optical system imaging, use imaging apparatus such as CCD to carry out opto-electronic conversion, and the view data that will change back output convert digital signal to and carries out various processing and then store as DID.
The image that this digital camera generally obtains shooting is stored in fixed configurations in camera or in the memory element that can freely plug, but, because the memory capacity that can be configured in the camera is limited, so the photo number that existence can be taken is subjected to the problem of the capacity limit of memory element.
So the spy opens flat 11-284894 communique and has proposed a kind of invention.This invention simultaneously, is deleted the view data that has transmitted from the storage of camera mounted inside, thereby is eliminated the lack of memory capacity when photographing by shot image data is sent to the external device (ED) with jumbo storage medium by wireless communication unit.In addition, the technology of carrying out the fast gate control of camera according to from the release signal of remote controller is disclosed, but, use a teleswitch when photographing, as when photographing with automatic timer, because the cameraman becomes the part of subject, can't confirm composition or decision shutter problem regularly by cameraman oneself so exist.
So the spy opens flat 5-72608 communique and has proposed a kind of invention.This invention will send to remote control with the image that digital camera is taken before shutter action, can be by the image displaying part prior confirmation subject body image of remote control.
Therefore, by the spy being opened the technical combinations that the image storage technique that proposes in the flat 11-284894 communique and above-mentioned spy drive the remote control that proposes in the flat 5-72608 communique, can realize having concurrently the external device (ED) of the prior confirmation function of remote operation function, the subject body image of camera, the jumbo image data storing function after taking.
But digital camera is in recent years pursued high image quality, makes that the data volume of an image is very big, so, generally shot image data is carried out the JPEG compression and handle, reduce data quantity stored.
But, the relation that the picture quality of compressed image and data volume are inversely proportional to, if compression ratio is provided with highly, data volume can reduce, but the picture quality variation if compression ratio is provided with lowly, can obtain the high image of fineness, but data volume increases.
Therefore, if compression ratio is provided with highly, call duration time to external device (ED) shortens, but, can only the serious image of memory image deterioration in the image store storage, on the other hand, if compression ratio is provided with lowly, can store the high image of fineness, still, will be elongated to the call duration time of external device (ED).
Owing to open flat 5-72608 communique and special opening in the invention that proposes in the flat 11-284894 communique above-mentioned spy, with the communication means of external device (ED) in do not consider the problems referred to above point, so, when image that external device (ED) communication is taken, need for a long time, very inconvenient for the cameraman, in addition, lose the possibility of precious shutter chance in addition.
In addition, put in view of the above problems the spy and open in the flat 11-174576 communique in the invention disclosed, though when the image that will take sends to external communication device, carrying out 2 values handles, improved communication speed, but 2 value processed images are difficult to see, can not reach the purpose of the convenience when improving the decision composition.
Summary of the invention
The present invention puts in view of the above problems and makes, and purpose provides a kind of camera and camera arrangement that can externally install the display image of confirming smooth change and have the function of the high view data of storage fineness when photography.
To achieve the above object, according to camera arrangement of the present invention, to send to external device (ED) with the view data of camera, in this external device (ED), show and store, it is characterized in that: described camera has makes it be less than the downsizing unit of the data volume of storage usefulness image to showing to handle with the data volume of image, described external device (ED) has: image control unit, and it judges that according to data volume or identification code the view data that sends from described camera is to show with image or storage image; Display unit, it shows that being judged to be by described image control unit is the view data that shows with image; And memory cell, it is the view data of storage with image that its storage is judged to be by described image control unit.
Feature of the present invention also is: described demonstration image is higher or remove the view data that amount is Duoed with the compression ratio of image than described storage.
Description of drawings
Fig. 1 is the perspective view that the camera of the expression one embodiment of the present invention of seeing from the left oblique upper of rear side is shown.
Fig. 2 is the perspective view that the external device (ED) in the camera arrangement of representing one embodiment of the present invention is shown.
Fig. 3 is the block diagram of circuit structure that the camera of Fig. 1 is shown.
Fig. 4 is the block diagram of circuit structure that the external device (ED) of Fig. 2 is shown.
Fig. 5 is the flow chart that the action of the camera in the explanation one embodiment of the present invention is shown.
Fig. 6 is the flow chart that the action of the external device (ED) in the camera arrangement that one embodiment of the present invention is described is shown.
Fig. 7 is illustrated in the block diagram that is built-in with the circuit structure of interim memory unit and alarm features in the camera of representing one embodiment of the present invention.
Embodiment
Below, with reference to figure, embodiments of the present invention are described.
Fig. 1 is the perspective view that the camera of the expression one embodiment of the present invention of seeing from the left oblique upper of rear side is shown, and Fig. 2 is the perspective view that the external device (ED) in the camera arrangement of one embodiment of the present invention of camera that expression has Fig. 1 is shown.
As shown in Figures 1 and 2, camera arrangement of the present invention is by the subject digital camera that imaging is taken on imaging apparatuss such as CCD 1 (hereinafter referred to as camera) being reached external device (ED) 11 formations that intercom mutually and carry out information exchange with this camera 1 by photographic optical system.
Above-mentioned camera 1 have be used for the taking lens 2 of subject imaging on the sensitive surface of above-mentioned imaging apparatus, be used for to the various information of the image that comprises shooting carry out radio communication antenna 3, be used to import release-push 4, the optical finder 5 of indication shooting action.
Said external device 11 has the display unit 12 that is made of LCD etc. that is used to show electronic image and other various information, be used for carrying out the antenna 14 of radio communication, for example with above-mentioned camera 1, the storage card 16 that constitutes by flash memory etc., be used for can be freely plug the card insertion section 15 of this storage card of installation, comprise the action button 17 that is used to operate this external device (ED) 11 and shows the button of indication, the straighforward operation button 18 that is used to make above-mentioned camera 1 execution release movement.
Here, in the camera and camera arrangement of the one embodiment of the present invention that expression is made of above-mentioned camera 1 and external device (ED) 11, in its use form, have 3 kinds of following method for imaging.
(1) under the state of viewing optics view finder 5, the composition of decision subject, the commonness photograph of photographing by the pressing operation of release-push 4.
(2) viewing optics view finder 5 not, in the subject body image that on seeing display unit 12, shows, the no view finder photography of photographing by the pressing operation of release-push 4.
(3) viewing optics view finder 5 not, in the subject body image that shows on seeing display unit 12, the pressing operation by straighforward operation button 18 makes camera carry out the remote control photography of photography action.
And above-mentioned 3 kinds of method for imaging are not special the settings, if the cameraman directly carries out the push action of above-mentioned release-push 4, then carry out commonness photograph; If replace above-mentioned release-push 4 to carry out the push action of above-mentioned RPB 18, then carry out the remote control photography; If operate above-mentioned the Show Button 17 above-mentioned display unit 12 is set to show state and carries out the push action of above-mentioned release-push 4, then do not have view finder and take.
Internal structure and action with regard to above-mentioned camera 1 describes below, and Fig. 3 illustrates the block diagram of the circuit structure of the camera of representing one embodiment of the present invention.
As shown in Figure 3, above-mentioned camera 1 is made of functional unit 21, shooting part 22, image processing parts 23, downsizing parts 24, communication component 25, the output of aforesaid operations parts 21 respectively with the input of above-mentioned shooting part 22, and the input of above-mentioned downsizing parts 24 be connected, the output of above-mentioned shooting part 22 is connected with the input of above-mentioned image processing parts 23.And the output of these image processing parts 23 is connected with the input of above-mentioned downsizing parts 24, and the output of these downsizing parts 24 is connected with above-mentioned communication component 25.And, the output of above-mentioned communication component 25 with carry out the above-mentioned antenna 3 of radio communication, the input of above-mentioned shooting part 22 and the input of above-mentioned downsizing parts 24 with the communication component 31 (with reference to Fig. 4) of said external device 11 described later and be connected.
Aforesaid operations parts 21 are to be used for the parts that the cameraman manually carries out various operation inputs, constitute by above-mentioned release-push 4 or other button classes (not shown) of being configured on the outer dress face of above-mentioned camera 1, when above-mentioned release-push 4 has been carried out pressing operation, release signal is outputed to above-mentioned shooting part 22.
Above-mentioned shooting part 22 is made of above-mentioned camera lens 2 and not shown imaging apparatus etc., after the mains switch of above-mentioned camera 1 (not shown) is connected, repeat the shooting action continuously, in addition, according to release signal from aforesaid operations parts 21, be used for shooting, and output to above-mentioned image processing parts 23 at memory unit storage subject body image described later.
Above-mentioned image processing parts 23 are made of A/D change-over circuit, digital signal processing circuit etc., to be converted to numerical data from the output signal of above-mentioned shooting part 22 by above-mentioned A/D circuit, to carry out the image processing that digitized view data is carried out appointments such as brightness or color balance adjustment by this A/D change-over circuit by above-mentioned digital signal processing circuit, output to above-mentioned downsizing parts 24.
Above-mentioned downsizing parts 24 have the compressor circuit that compresses by known JPEG mode from the view data of above-mentioned image processing parts 23 outputs, will compress resulting output and output to above-mentioned communication component 25.
Above-mentioned communication component 25 as inscape, will carry out above-mentioned antenna 3 wireless transmission, receive the remote signal from said external device 11 to said external device 11 described later by the view data of above-mentioned downsizing parts 24 compressions.
Here, above-mentioned downsizing parts 24 have following function: according to the above-mentioned release signal of the output of the pressing operation by above-mentioned release-push 4 or from the remote signal of said external device 11 described later, the compression ratio of change view data, particularly, above-mentioned release-push 4 is being carried out the pressing operation reception from the release signal of aforesaid operations parts 21 or before by the remote signal of above-mentioned communication component 25 receptions from said external device 11, compress processing to setting (paying attention to reducing the setting of data capacity) with high compression rate from the view data of above-mentioned image processing parts 23 outputs, on the other hand, after receiving above-mentioned release signal or remote signal (shooting index signal), the picture number of above-mentioned image processing parts 23 outputs is set (paying attention to the setting of high precise image) with little compressible and is compressed processing.Then, will send to above-mentioned external device (ED) 11 at any time by above-mentioned communication component 25 by the view data of above-mentioned downsizing parts 24 compressions.
In addition, the reason that changes the compression ratio of above-mentioned downsizing parts 24 according to situation is based on following consideration, because before receiving above-mentioned release signal or remote signal, view data is used for prior confirmation and shows usefulness, so reduce the view data capacity, communication speed is shortened, and after receiving release signal or remote signal, above-mentioned view data is the data of storage usefulness, so, preferably reduce compression ratio in order to obtain the high view data of fineness.
Internal structure and action to said external device 11 describes below, and Fig. 4 illustrates the block diagram of the circuit structure of the external device (ED) in the camera arrangement of representing one embodiment of the present invention.
As shown in Figure 4, said external device 11 has remotely controlling functional, image memory function, image display function, is made of communication component 31, image control components 32, memory unit (plug-in) 33, read-out element 34, display unit 35, demonstration indicating device 36, straighforward operation parts 37.The input of above-mentioned communication component 31 be connected with above-mentioned antenna 14 that the above-mentioned communication component 25 (with reference to Fig. 3) of above-mentioned camera 1 carries out radio communication, and connecting the output of above-mentioned straighforward operation parts 37, the output of above-mentioned communication component 31 is connected with the input of above-mentioned image control components 32, in addition, the output of above-mentioned image control components 32 is connected with the input of above-mentioned memory unit 33 and the input of above-mentioned display unit 35 respectively, the output of the output of above-mentioned memory unit 33 and above-mentioned demonstration indicating device 36 is connected with the input of above-mentioned read-out element 34, and the output of above-mentioned read-out element 34 is connected with the input of above-mentioned display unit 35.
Above-mentioned communication component 31 as inscape, receives above-mentioned antenna 14 view data of coming from above-mentioned camera 1 wireless transmission and outputs to above-mentioned image control components 32, sends remote signal from above-mentioned straighforward operation parts 37 according to the pressing operation of straighforward operation button 18 described later to the above-mentioned communication component 25 (with reference to Fig. 3) of above-mentioned camera 1.
Above-mentioned image control components 32 carries out outputing to by the view data that above-mentioned communication component 31 receives control that above-mentioned memory unit 33 described later stores, above-mentioned view data is outputed to above-mentioned display unit 35 described later directly shows.
Above-mentioned memory unit 33 according to the control of above-mentioned image control components 32, is stored above-mentioned view data by above-mentioned card insertion section 15, freely be installed on said memory card 16 formations such as (all with reference to Fig. 2) of this insertion section 15 with plugging.
Above-mentioned read-out element 34 is read the above-mentioned view data that is stored in the above-mentioned memory unit 33 according to the indication of above-mentioned demonstration indicating device 36 described later, outputs to above-mentioned display unit 35.
Above-mentioned display unit 35 shows above-mentioned view data of being read and being exported by above-mentioned read-out element 34 or the above-mentioned view data of directly exporting from above-mentioned image control components 32, is equivalent to above-mentioned display unit 12 (with reference to Fig. 2).
Above-mentioned demonstration indicating device 36 inputs are used to make the index signal of above-mentioned display unit 35 display images, are equivalent to aforesaid operations button 17 (with reference to Fig. 2).
Above-mentioned straighforward operation parts 37 output to above-mentioned communication component 31 according to the pressing operation from above-mentioned straighforward operation button 18 (with reference to Fig. 2) with remote signal, and remote signal is sent to above-mentioned camera 1.
Here, 32 pairs of above-mentioned memory unit 33 storages of above-mentioned image control components are carried out switching controls from the action of the view data of above-mentioned communication component 31 outputs and the 2 classes action that above-mentioned display unit 35 is shown, judge the switching of this control according to image data amount.Just, the above-mentioned image data amount that receives is compared with the designated value of regulation, if more than designated value then be judged as storage and use view data, if be less than designated value then be judged as the demonstration image.Therefore, be above-mentioned storage when using view data when being judged as, above-mentioned view data is sent to above-mentioned memory unit 33 and stores.On the other hand, when being judged as when being display image data, above-mentioned view data is sent to above-mentioned display unit 35, shows with visual state.
Therefore, though the cameraman do not note, on this external device (ED) 11, can carry out automatic and suitable division to the data of sending.
Below, describing with regard to the action of the integral body of above-mentioned camera 1, Fig. 5 is the flow chart that the action that describes above-mentioned camera in detail is shown.
As shown in Figure 5, above-mentioned camera 1, after connecting not shown mains switch and finishing initialization, carry out the shooting action at step S1 by above-mentioned shooting part 22, transfer to step S2, at step S2, to the view data that obtains by above-mentioned shooting action, by the image processing that above-mentioned image processing parts 23 carry out appointment, then, transfer to step S3.
At step S3, the view data that will carry out image processing at above-mentioned steps S2 is compressed with high compression rate by above-mentioned downsizing parts 24, transfers to step S4.At step S4, will send to said external device 11 with the view data that above-mentioned high compression rate has carried out compression by above-mentioned communication component 25, transfer to step S5.
Then at step S5, judge whether above-mentioned release-push 4 is pressed and has imported signal, perhaps whether imported remote signal from said external device 11 by above-mentioned communication component 25.At this step S5, when the input of release signal or remote signal all is judged as " nothing ", turn back to above-mentioned steps S1, repeat action from step S1 to step S4, carry out above-mentioned shooting action repeatedly.On the other hand, when above-mentioned release signal or remote signal are judged as " having ", transfer to step S6, execution is used to obtain the shooting action of storage with view data.
After step S6 carries out the shooting action, transfer to step S7, for shot image data being made the high view data of fineness, by above-mentioned downsizing parts 24 above-mentioned view data is compressed with little compressible, transfer to step S8, at step S8, send to said external device 11 by above-mentioned communication component 25.Then, return step S1 once more.
In addition, above-mentioned camera 1 under the state of power connection, the action of repeating step S1～step S8.
Below, describing with regard to the molar behavior of said external device 11, Fig. 6 is the flow chart that the action that describes the said external device in detail is shown.
As shown in Figure 6,, receive the view data of sending, transfer to step S10,, judge that by above-mentioned image control components 32 whether the data volume that receives is more than the designated value of stipulating at step S10 from above-mentioned camera 1 by above-mentioned communication component 31 at step S9.If the judged result of step S10 is more than designated value, then transfer to step S11, store above-mentioned memory unit 33 into, then, move to step S13.On the other hand,, then be branched off into step S12, carry out image by above-mentioned display unit 35 and show, move to step S13 if be less than designated value.
Then in step S13, judge whether above-mentioned the Show Button 17 is pressed, if be pressed then transfer to step S14, read the image of storage in the above-mentioned memory unit 33 with above-mentioned read-out element 34 by display subroutine, step S15 is transferred in the action that execution shows on above-mentioned display unit 35.On the other hand, if step S13 does not push above-mentioned the Show Button 17, then jump to step S15.
Below, at step S15, judge whether above-mentioned straighforward operation button 18 is pressed, if be pressed then transfer to step S16, remote signal (release signal) is sent to above-mentioned camera 1 by above-mentioned communication component 31, turn back to step S9 once more.On the other hand, if be not pressed, turn back to the processing of step S9 at step S15 straighforward operation button 18.
In addition, said external device 11 under the state of power connection, the action of repeating step S9～step S16.
Representing like this in the camera and camera arrangement of one embodiment of the present invention, has following function, promptly, by downsizing parts 24 built-in in the camera 1, if confirm the view data of usefulness, then set (paying attention to reducing the setting of data capacity) and compress processing with high compression rate, on the other hand, if the view data of storage usefulness, then set (paying attention to the setting of high precise image) and compress processing with little compressible, communication component 25 by camera sends to external device (ED) 11 with view data, in addition, also has following function, promptly, built-in image control components 32 in the said external device 11, compression ratio according to the view data that sends by above-mentioned communication component 23, automatically judge it is to built-in above-mentioned memory unit 33 with above-mentioned image data storage, still be shown to above-mentioned display unit 35, so, during the composition of the image when externally device is confirmed photography etc., the call duration time of above-mentioned camera 1 and said external device can be shortened, the display image of smooth change can be confirmed.In addition, when confirming recording view data, owing to data are compressed, so, also can shorten call duration time though be the high view data of fineness.
In addition, in the present invention,,, can change the amount of view data, still, be not limited thereto, remove between can certainly implementing above-mentioned view data and handle, carry out downsizing by the change JPEG compression ratio in when compression with above-mentioned downsizing parts 24.In this case, before input shooting index signal, reduce data volume by removing amount between increasing, after input shooting index signal, as long as will between remove amount and reduce.
And then the camera 1 among the present invention is not that the view data of will make a video recording is saved in the above-mentioned camera 1, but is sent to external device (ED) 11, so have above-mentioned camera 1 advantage of simple structure, still, on the other hand, when having communication failure, the problem that data can be lost.
Therefore,, as shown in Figure 7, can in above-mentioned camera 1, dispose the interim memory unit 26 that the memory by low capacity constitutes, when communication failure, view data is kept in the above-mentioned interim memory unit 26 temporarily in order to address this problem.Certainly, meanwhile, can be in above-mentioned camera 1 built-in alarm features 27, during communication failure, after storing above-mentioned interim memory unit 26 into, warn demonstration by above-mentioned alarm features 27, communication failure is notified to the cameraman.
In addition, external device (ED) 11 among the present invention is according to the amount of the view data of sending from camera body 1, judge that this view data is to store with data or show to use data, but, also can be by camera body 1 additional identification code when sending this view data, external device (ED) judges it is any view data by judging this identification code.
As mentioned above, according to the present invention, can provide a kind of camera and camera arrangement, it can confirm the display image of smooth change with external device (ED) when photography, have the function of the high view data of storage fineness simultaneously.
Claims (2)
1. a camera arrangement will send to external device (ED) with the view data of camera, show in this external device (ED) and store, and it is characterized in that:
Described camera has makes its downsizing unit that is less than the data volume of storage usefulness image to showing to handle with the data volume of image,
Described external device (ED) has: image control unit, and it judges that according to data volume or identification code the view data that sends from described camera is to show with image or storage image; Display unit, it shows that being judged to be by described image control unit is the view data that shows with image; And memory cell, it is the view data of storage with image that its storage is judged to be by described image control unit.
2. camera arrangement as claimed in claim 1 is characterized in that:
Described demonstration image is higher or remove the view data that amount is Duoed with the compression ratio of image than described storage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002160554A JP2004007273A (en) | 2002-05-31 | 2002-05-31 | Camera and camera system |
| JP160554/2002 | 2002-05-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1463140A CN1463140A (en) | 2003-12-24 |
| CN1221127C true CN1221127C (en) | 2005-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03138093 Expired - Fee Related CN1221127C (en) | 2002-05-31 | 2003-05-28 | Camera and camera system |
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| Country | Link |
|---|---|
| JP (1) | JP2004007273A (en) |
| CN (1) | CN1221127C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6213817B2 (en) | 2012-09-03 | 2017-10-18 | パナソニックＩｐマネジメント株式会社 | Electronic devices that can send images |
-
2002
- 2002-05-31 JP JP2002160554A patent/JP2004007273A/en active Pending
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2003
- 2003-05-28 CN CN 03138093 patent/CN1221127C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004007273A (en) | 2004-01-08 |
| CN1463140A (en) | 2003-12-24 |
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