CN101582985B

CN101582985B - Digital scene-touching technique camera

Info

Publication number: CN101582985B
Application number: CN2008101826051A
Authority: CN
Inventors: 王玉龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-09
Filing date: 2008-12-09
Publication date: 2011-07-27
Anticipated expiration: 2028-12-09
Also published as: CN101582985A

Abstract

The invention relates to a digital scene-touching technique camera, which consists of a lens clamping seat and a scene-touching plate and is characterized in that: 1, the lens clamping seat can be connected with various photographic lenses rotatablely; 2, random multipoint light metering and random multipoint focusing can be achieved on the scene-touching plate through a mouse pointer or a touch-pen; 3, a suitable aperture is matched automatically according to a selected focal point to ensure that the focal point is in the range of the depth of scene; 4, one point is selected in a highlight area automatically as an upper initial point, one point is selected in a shadow area automatically as a lower initial point, and an exposure value is locked to perform average light metering in the areas; 5, the lens clamping seat can be connected with large and medium picture cameras and is used as a digital back; 6, the large picture camera is provided with a special belt cavity, and the lens clamping seat can perform parallel translation upwards, downwards, leftwards and rightwards to shoot digital slices; and 7, the lens clamping seat and the scene-touching plate are configured with standardparts, are matched with configuration combinations of an image sensor and the like automatically according to needs, and can be updated without changing a shell to achieve the aim of reducing the usecost.

Description

The digital scene-touching technique camera

Technical field

The present invention relates to a kind of camera, relate in particular to a kind of can be connected with various camera lenses, camera of supporting average metering and emphasis photometry.

Background technology

Camera has only the history in 169 years.Briefly, camera development has four periods: 19 end of the centurys are to early in the twentieth century, and photographer spreads upon photosensitive material at the scene and on glassly takes pictures then, and we claim the scene to film, take and flushing was first period; The thirties in 20th century, the douching technique that uses large-scale page or leaf sheet camera (8X10,4X5) and simplify is produced levels are rich, and the photo of contrast exquisiteness was second period; After the 1950's, along with the invention of 120,135 cameras and colour film with popularize, make shutterbugs' extend over the entire globe, this is the 3rd period of film camera development in an all-round way; At the beginning of 20 end of the centurys to 21 century, digital camera occurs, along with the technology fast development, and the continuous reduction of manufacturing cost and selling price, popularity has replaced traditional film camera substantially, and this was the 4th period, and actual is the primary stage of digital camera development.The main universal type of selling is low pixel (500-1200 ten thousand pixels) on the market digital card camera, portable machine and digital Dan Fanji.The digital camera (2200-5600 ten thousand pixels) of middle picture is expensive digital camera back (price is more than 250,000 yuan).The big picture special digital camera of high pixel substantially also is a blank.

At present, the light measurer of camera mainly contains average metering, some photometry and emphasis photometry.Average metering is picture to be divided into 5 divide photometry equally.Point photometry and emphasis photometry all are that photometry point or part are located at the picture middle position.Want when picture central authorities part is in addition carried out photometry, photometry is carried out at the center that must temporarily photometry partly be moved on to picture, locking control again, and composition is taken again, the very loaded down with trivial details and trouble of operation sequence.

The maximum characteristics of electronic digital product are to upgrade very soon, and digital camera is no exception.The digital camera that flower hundreds of thousands unit buys just falls behind more than a year and should eliminate.The present invention is with lens clamping seat, image sensor, image processor, storage card and touch separately combination such as scape plate, having solved the problem that this updating component is only changed in upgrading well.

Summary of the invention

The problem to be solved in the present invention mainly contains following:

1, lens clamping seat and touch scape plate separated into two parts had both low-costly solved the incompatible problem of each producer's phtographic lens interface, had solved the heat dissipation problem of high pixel image sensor, high image resolution image processor and Micr CPU again;

2, the LCD of touching on the scape plate is bigger than the display image area of digital camera or DIGITAL-MODUL-R, the definition height.Any some average metering, the troublesome operations problem in the time of can solving part photometry beyond the central authorities.The image optimization processor that built-in heat radiation is good can improve the accuracy of photometry and exposure, white balance, and dynamic optimization program and color rendition ability make storage speed and image quality significantly promote.

3, no matter be professional photographer or amateur photographer, use the scape plate that touches of the present invention to take pictures, simple to operate, easy, convenient, fast and directly perceived, the photographer of the experience of not photographing also can take desirable good photo, and this is a main feature of the present invention.

4, lens clamping seat is installed on traditional big-and-middle picture film camera and can moves the orientation as upper and lower, left and right, reaches to enlarge the purpose that image sensor is taken area and reduced use cost.

For addressing the above problem, the invention provides a kind of digital scene-touching technique camera, it comprises lens clamping seat and touches two parts that the scape plate separates, wherein lens clamping seat can be connected with various phtographic lenses, it is characterized in that: by lens clamping seat with touch being connected of scape plate, LCD shows shot image signals in real time, and touch-screen is installed on LCD, the operation indication that enough this touch-screens of energy are found a view, adjust, taken and store; Use any selection of mouse pointer what time to click in the live view picture signal on LCD, instant playback goes out the exposure shutter speed value and the f-number of this position on each clicked point, demonstrate the average metering value of this some position simultaneously at one jiao of big word of LCD, by live preview to picture, can select repeatedly to adjust, determine final exposure value; Can also take up an official post in LCD by mouse pointer and be intended to the highlights selection a bit, lock high light and partly go up the initial point light value, select a bit arbitrarily in dark portion again, the locking low light partly descends the initial point light value, press the emphasis photometry at zone line then, brightness, color, the contrast range of assessment image, the live preview effect is selected repeatedly and is adjusted.

Description of drawings

Fig. 1 is the lens clamping seat block diagram of expression digital scene-touching technique camera of the present invention;

Fig. 2 be the digital scene-touching technique camera touch scape plate circuit structure block diagram;

Fig. 3 be the digital scene-touching technique camera touch scape plate surface structure end view;

Fig. 4 is the picture structure figure of digital scene-touching technique camera explanation;

4-A, click be (field or frame) a bit, shows some positions light value.

4-B, click at 2 when above, the big word in the lower left corner shows the average metering value.

4-C, shooting picture live preview effect.

Fig. 5 is the picture structure figure of digital scene-touching technique camera explanation;

Initial point in 5-A, the locking highlight exposure.

Initial point under 5-B, the locking shadow exposure.

H zone emphasis photometry preview after 5-C, the locking light and shade part.

The later H zone emphasis light value T100/F8 of initial point T250/F11 and dark subordinate's initial point T30/F5.6 on 5-D, the locking highlights.

Fig. 6 is the picture structure figure of digital scene-touching technique camera explanation.

Embodiment:

Fig. 1 is a lens clamping seat circuit structure block diagram of the present invention.In the figure, 1-2 represents the camera shooting camera lens, is radiated on the shooting face of image sensor 1-4 by phtographic lens 1-2 from the image light of subject 1-1, and picture signal is removed by line socket 1-6 line or wireless launcher 1-5 output is arranged.

Fig. 2 is the circuit structure block diagram that touches the scape plate.After this picture signal process line socket or wireless signal receiver 2-1 receive, be provided for A/D change-over circuit 2-4 through signal amplifier 2-2, signal processor 2-3 again, and carry out digital conversion with predetermined figure place.View data after this digital conversion is written into image memory (frame holder) 2-6 through switch 2-5.The view data that is written into this image memory 2-6 is provided for image recording structure 2-7 and is recorded.In addition, in the recording medium of this image recording structure 2-7, use hard disk or CF card.In addition, write among people's image memory 2-6 through switch 2-5 from the regenerated signal of this image recording structure 2-7.

View data in being written into image memory 2-6 is provided for blender 2-8, mixes the signal from figure holder 2-11, text holder 2-12.In addition, in figure holder 2-11, there are display speed T, the aperture F etc. of the click location of using stylus and touch-screen appointment.In addition, in text holder 2-12, storing the indication and the explanatory notes such as state of operation.Signal from this blender 2-8 is provided for D/A translation circuit 2-9, and the view data behind the analog converting is provided for LCDs (LCD) 2-10.

Therefore, in this device, the view data of being absorbed with the image sensor 1-4 in the lens clamping seat is written among the image memory 2-6.To synthesize the image from figure holder 2-11, text holder 2-12 then in this image, this image is presented among the LCDs 2-10.In addition, the view data that is written among this image memory 2-6 is recorded in the recording medium of image recording structure 2-7.And then, being written into image memory 2-6 from the regenerated signal of this image recording structure 2-7 through switch 2-5, this image is shown in LCDs 2-10.

And, be provided with touch-screen 2-19 in the front of the display surface of this LCDs 2-10.In addition, near the display surface of LCDs 2-10, be provided with mains switch 2-20.Be provided for system control device 2-21 on the printed circuit board (PCB) from the signal of these touch-screens 2-19.

In addition, the subregion that the view data that is written into image memory 2-6 is provided on the picture to be clicked cut holder 2-13, the signal that goes out holder 2-13 from this section is provided for light measuring circuit 2-14.Signal from these light measuring circuits 2-14 is provided for system control device 2-21.

And, be provided for signal processing circuit 2-3, A/D change-over circuit 2-4, image memory 2-6, image recording structure 2-7, figure holder 2-11, text holder 2-12, cut holder 2-13 and light measuring circuit 2-14 from the control signal of this system control device 2-21.Simultaneously, offer camera lens system control circuit 1-3 and image sensor control circuit 1-4.

In addition,, offer earlier and cut memory 2-13, cut memory 2-13 and offer light measuring circuit 2-14 again from the subregion photometry signal that LCD 2-10 is clicked by mouse pointer or touch-screen 2-19 is clicked by stylus.Light measuring circuit sends a some photometry, average metering 2-15 order, through+/-numerical value adjusting device 2-17 adjusts control repeatedly, and final exposure value is determined 2-18, offers system control device 2-21.

And, from LCD 2-10 is clicked by mouse pointer or touch-screen 2-19 is clicked by stylus free highlights zone a bit, select a bit locked in dark portion zone again, through+/-numerical value adjusting device 2-17, the live preview contrast is selected, change the zones of different contact, final exposure value is determined 2-18, offers system control device 2-21.

Fig. 3 be expression digital scene-touching technique camera of the present invention touch scape plate portion surface structure end view.In the figure, be provided with LCD 3-2, be provided with touch-screen 3-3 in the front of this LCD in the front of main body 3-1.In addition, be provided with mains switch 3-4 in the display surface side of LCD 3-2.Felt pen 3-5 band function key 3-6.

Fig. 4 is the photometry region indicator diagram of some photometry.In Fig. 4-A, if touching any click a bit (as sky) on the shown picture of scape plate, instant playback goes out photometry velocity amplitude and f-number near clicked point.In Fig. 4-B, select several zones of diverse location to click, instant playback goes out the shutter speed value and the f-number of each clicked position, and demonstrates the average metering value for one jiao in LCD simultaneously.By live preview to picture, can select repeatedly to adjust, determine desirable final exposure value.

In addition, average metering and emphasis photometry are arranged in photometry.So-called average metering is that the average light quantity of measuring the view data of the photometry region of being formulated is determined exposure data.In addition, so-called emphasis photometry is the method that the average light quantity of the view data light quantity of the photometry region after the weighting and all images data light quantity is determined exposure.When exposure is determined,,, obtain shutter speed and determine exposure then according to the aperture size of obtaining several contact positions in the average metering value of some if specified above-mentioned Multi spot metering.And, if exposure is determined, just set aperture and shutter speed.

In addition, when specifying, for example adopt Multi spot metering, from predetermined a plurality of area metering data, obtain exposure data in the zone that does not have the part photometry.

Fig. 5 is locking highlight exposure top dead-centre 5-A and dark subordinate dead point 5-B, makes the development and change no longer up and down of two auroral lines.Get a kind of new-type Exposure Metering of Fig. 5-D zone line H emphasis photometry (telling 10 grades approximately) then.The T250F11 shown in some Fig. 5-A is selected in highlights zone at picture, as initial point locking on the highlights regional exposure.Select 1 T30F5.6 in the dark portion of Fig. 5-B zone again, as initial point locking under the dark portion regional exposure.Fig. 5-C is the H zone emphasis photometric range of reserving.Emphasis light value T100F8 is measured in H zone in Fig. 5-D.This emphasis Exposure Metering can prevent effectively that highlight area from overflowing and dark portion zone is serious under-exposed, keep picture contrast, color, hue and luminance enrich level.

Fig. 6 is that lens clamping seat is used the moving direction schematic diagram as DIGITAL-MODUL-R on big picture camera.Move 8 times upper and lower, left and right, exposes 9 times, can take the digital image contact pin of high definition.

Because the present invention has adopted touch-screen to carry out the indication of some photometry operation, therefore the photometry of the part beyond the central authorities of picture can very easily be carried out.In addition, the exposure of all right locked light and shade part is initial point up and down, prevents that effectively highlight area from overflowing and dark portion is regional serious under-exposed.

Image light from subject 1-1 is radiated on the shooting face of image sensor 1-4 through phtographic lens 1-2, connect this picture signal and be written into video memory 2-6 through amplifier 2-2, signal processing circuit 2-3, A/D varying circuit 2-4, switch 2-5, this view data is provided for image recording structure 2-7 and carries out record.View data is provided for blender 2-8, and mixing is from the signal of graphic memory 2-11, text internal memory 2-12, be provided for LCD 2-10 through D/A analog signal conversion 2-9, front at the display surface of this LCD 2-10 is provided with touch-screen 2-19, and is provided with mains switch nearby.Signal from them is provided for system control device 2-21.In addition, view data is through cutting memory 2-13, point or average metering circuit 2-15, dark space, clear zone initial point lock-in circuit 2-16 and be provided for positive and negative correction number value adjuster up and down, determine final exposure value, offer system control device 2-21, this control signal is provided for phtographic lens control circuit 1-3 and image sensor control circuit 1-4.

Since the present invention, the indication of having adopted lens clamping seat and touch-screen to operate, so Multi spot metering, regulation and control exposure and the shooting contact pin of part can very easily be carried out beyond the central authorities of picture.

Claims

1. digital scene-touching technique camera, it comprises lens clamping seat and touches two parts that the scape plate separates, wherein lens clamping seat can be connected with various phtographic lenses, it is characterized in that: by lens clamping seat with touch being connected of scape plate, LCD shows shot image signals in real time, touch-screen is installed, the operation indication that enough this touch-screens of energy are found a view, adjust, taken and store on LCD; Use any selection of mouse pointer what time to click in the live view picture signal on LCD, instant playback goes out the exposure shutter speed value and the f-number of this position on each clicked point, demonstrate the average metering value of this some position simultaneously at one jiao of big word of LCD, by live preview to picture, can select repeatedly to adjust, determine final exposure value; Can also take up an official post in LCD by mouse pointer and be intended to the highlights selection a bit, lock high light and partly go up the initial point light value, select a bit arbitrarily in dark portion again, the locking low light partly descends the initial point light value, press the emphasis photometry at zone line then, brightness, color, the contrast range of assessment image, the live preview effect is selected repeatedly and is adjusted.