CN1713222A - Method for acquiring three-dimensional digital image - Google Patents

Abstract

A method for obtaining stereo digital image includes using normal digital camera to shoot one viewpoint at two different angles for obtaining two frames of images in different angle, using special software to process these two images and wearing on special 3D eyeglass for viewing true 3D images.

Description

A kind of method that obtains the 3-D digital image

Technical field

This be a kind of application all kinds of images field, can utilize ordinary digital camera to obtain the method for 3-D digital image.

Background technology

Along with development of science and technology and raising, digital product also becomes increasingly abundant and is various, in recent years, digital camera has become wherein one of most important kind, more and more meticulousr by the image that it absorbs, gradually substitute traditional camera work, but no matter be traditional camera work or modern numeral taking photo technology, the image that is obtained is a plane picture, lack level, the objective reality that can not comprehensively reflect actual object, several special pickup images also once appearred in the past to obtain the method for stereo-picture, the method of obtaining and watching such as three-dimensional film, be with various visual angles take and and by the polarisation lens shooting, viewers wear polarisation eyes obtain the method for visual stereoeffect image, but above method all has its weak point, and domestic consumer can not arbitrarily take, thereby stereoscopic photograph does not now also get their way into people's lives veritably.

Summary of the invention

Purpose of the present invention just provides a kind ofly can utilize ordinary digital camera, obtain the method for three-dimensional image easily.

Purpose of the present invention realizes by such method: take with ordinary digital camera, before shooting, choose viewpoint and visual angle, from two different angles the object of same viewpoint is taken respectively, so just can obtain the image of same object two width of cloth different angles, the subject image that is equivalent to the seen different angles of people's right and left eyes in fact, the image of these two width of cloth different angles is input in the computer, software by special use is handled accordingly, software processes mainly is that the same area with two width of cloth images aligns, and on screen, show the image that the left and right sides is different in turn or add colour filter, put on special observation glasses again, because the effect or the colour filter effect of people's persistence of vision, people's right and left eyes just can see be equivalent to about two effects of looking, also just can reproduce real 3-D effect.

Advantage of the present invention and effect are: the user can use ordinary digital camera to absorb object information easily at any time, accurately reproduces actual 3-D effect, and cost is cheaper, and is convenient and swift, is easy to popularize.

Description of drawings

Accompanying drawing 1 is a kind of vision synoptic diagram that obtains the method for 3-D digital image that the present invention proposes.

Accompanying drawing 2 is a kind of schematic flow sheets that obtain the method for 3-D digital image that the present invention proposes.

Embodiment

Below in conjunction with drawings and Examples principle of work of the present invention is described.

Basic structure of the present invention mainly is made up of digital camera, special software, observation glasses.

Here the simple explanation ultimate principle of three-dimensional imaging once, people's eyes are when watching attentively object, because the distance between left eye and the pupil of right eye, be approximately 5cm, left eye and right eye will produce the image of the identical viewpoint of different visual angles to an object (same viewpoint in other words conj.or perhaps), these two different visual image signals, the acceptance of process brain and processing have just formed the stereoscopic visual effect of a three-dimensional, just we the image of the actual object of seeing, so, form the effect of the image of a solid, will allow two eyes receive the image of the identical viewpoint of different visual angles of object simultaneously.The related ultimate principle of this invention also is like this, and two width of cloth images of the same viewpoint that digital camera photographs, different angles as long as the angle of selecting is suitable, just are equivalent to two being seen effects of eyes of people, as shown in Figure 1.

Directly two width of cloth images by the same object that digital camera obtained also are not to observe directly three-dimensional image, also to can obtain stereo-picture true to nature through handling, also preserve through transferring to computer by the image that above-mentioned digital camera obtained, as JPG, BMP, GIF or other picture format, see that stereo-picture also will observe through the processing of software and with special glasses, here software is done an explanation, the software supporting with this digital camera is a kind of image processing software, be to be used for handling the image that the present invention obtains specially, because be captured at twice image; between the two Bi images error is arranged certainly, the center viewpoint can not be in a fixing zone, so software processes mainly is that two width of cloth image same area are aligned, the correspondence position of the image that obtained for twice is aligned, like this, just can obtain corresponding three-dimensional image effect by the processing of back.We know, the image of the identical viewpoint of different visual angles of the same object that is obtained in front, also must send into corresponding right and left eyes respectively and not disturb the reproduction that just can realize stereo-picture mutually, for example, to send into left eye to the image that is obtained for the first time, the image that is obtained is for the second time sent into right eye, and left eye and right eye mutual interference and keep separately image mutually, so just can realize the reproduction of stereo-picture, in the present invention, realization is sent into the image of left and right sides respectively in the eyes of the left and right sides and is gone, two kinds of methods can have been adopted respectively, a kind of is the complementary color method, another kind is mutual method, the ultimate principle of complementary color method is, by software the image that is obtained being added colour filter handles, respectively in addition different Transparent color, and two Transparent color are complementary color each other, for example on the image in the left side that is obtained for the first time, add red Transparent color, on the image right that is obtained for the second time, add the green transparent look, and two width of cloth image alignments are stacked up, so, when the observer goes to observe image with the transparent glasses of corresponding color respectively again, just can see different effects, such as go to observe with red transparent glasses, just be merely able to see the picture signal in left side substantially, if when going to observe with the glasses of green transparent, just be merely able to see the picture signal on right side basically, if we added two width of cloth image overlay of crossing colour filter above being incited somebody to action by software, initial point correspondence during stack, and with corresponding left side is red transparent, and the right side is the coloured spectacles of green transparent when going to observe, because left eye is only to see the image of the object that is obtained for the first time, right eye is only to see the image that is obtained for the second time, here just formed the sensation of a stereo-picture, feeling that just color is abundant inadequately, is can lose some color generation because cross goggles with color filter here.Here related glasses are special both sides observation glasses of complementary color each other.

Except above-mentioned complementary color method and coloured spectacles, can also realize with another method, can make effect more true to nature.We know, people's eyes have a characteristic, be exactly " persistence of vision ", for the visual signal of being seen, even blackout, in people's eyes, also can retain the time of about 1/12nd to ten sixth second, if the image of taking was continuously play with the proper speed time, promptly can form the continuous effect of picture, film is just based on this principle, we can utilize this characteristics fully, if the image that is obtained the same viewpoint of same object different visual angles by digital camera is shown, the image that shows a side wherein earlier, deliver in the eyes of a corresponding side, and shelter from the eyes of an other side, in the time that does not also have to disappear in visual persistence effect, time was less than one of 16 seconds, closing this width of cloth image shows, and then the image that shows opposite side, current only to allow the eyes of opposite side see this width of cloth image, allowing the eyes of a side noted earlier be blocked becomes and can not see, this has in fact accomplished to allow the eyes of homonymy not see the image at respective side visual angle, so just can form the sensation of stereo-picture, for example, that is to say, can be in a time cycle, can on display screen, show earlier by the image that obtains the same viewpoint in visual angle, left side for the first time, the demonstration time can be set at about demonstration sixtieth second, a refresh cycle that just is equivalent to general computer monitor, in this time period, right eye is blocked, only allow observer's left eye see the image that this shows, second sixtieth second, demonstration is by the image that is obtained for the second time, it also is the preceding piece image same position that is presented on the screen, the length of demonstration time is the same with the last width of cloth, it also is sixtieth second, in this time period, observer's left eye is blocked, only to allow observer's right eye see the image that this shows, because the effect of persistence of vision, though in fact observer's left eye does not see any image in this time period, but still can feel to have the signal of image to exist, and right eye also can be observed by the picture signal of being obtained for the second time that shows on screen, spent this time period, promptly enter the 3rd sixtieth of next cycle second, the image that shows the left side again, close the glasses on right side, promptly repeat above-mentioned process again repeatedly, observer's right eye will be blocked, but because the effect of persistence of vision, still can feel picture signal, so continuous repetition, so what observer's right and left eyes was accepted respectively is the picture signal of the same viewpoint in corresponding visual angle, do not produce mutually yet and disturb, be continuous on visual sense feeling, formed the 3-D view of lively solid, when software carries out the image transitions demonstration, machine video card or can produce a synchronizing signal simultaneously by software, this provide to supporting being used for specially observe the image observation glasses.

The related here observation glasses that are used for blocking respectively right and left eyes, what adopted in the present embodiment is the liquid crystal light valve glasses, its two eyeglasses are independently, can carry out opening and closing respectively in the different time, when the liquid crystal light valve eyes are opened, present transparent state, when the liquid crystal light valve eyes are closed, what present is dark state, and when the left side eyeglass open and the time, the eyeglass on right side is closed, equally, when the right side eyeglass is opened, the left side eyeglass is closed, like this, in software in the image transitions, or in the specific time, can provide a switching signal by software, also can provide a synchronizing signal by machine, reach this glasses by connecting line or wireless signal without any other additional integrated circuit board, connecting line can be USB here, standard interfaces such as PS/2, connecting line also can the audio output signal line, the wireless signal mode can be an infrared mode, can be the RF mode also, finish corresponding automatic switching, promptly when display screen show be the picture signal of the same viewpoint in visual angle, left side the time, open the eyeglass in left side simultaneously, and the eyeglass on right side closed, when display screen show be the picture signal of the same viewpoint in visual angle, right side the time, open the eyeglass on right side, and the eyeglass in left side closed simultaneously, so constantly repeat, just can form complete sum continuous images signal, because eye storage characteristic, the observer just can observe lively real stereo-picture, and without any color lose.

The workflow of this invention as shown in Figure 2, at first choose the object that to take, select, adjust the viewpoint position of the left and right sides, press the shutter of digital camera then, the image of the same viewpoint of picked-up object left and right sides different visual angles, two width of cloth images with the same viewpoint of different visual angles of the same object that obtained are transferred to computer then, in computer, can select the different modes of watching in the software interface of special use, a kind of is interactive, a kind of is the complementary color formula, wherein interactive mode is that the cycle shows in turn fast on screen for the image of the identical viewpoint of two width of cloth different visual angles that will be obtained, can produce signal by the machine video card, also can all can produce a same synchronizing signal by software, be transferred to corresponding liquid crystal glasses, the eyeglass of glasses is under the effect of synchronizing signal, the corresponding shown image of left and right sides eyeglass takes turns opening and closing, like this, when display screen show be the image of the same viewpoint in visual angle, left side the time, observer's left eye just can be seen the image of the same viewpoint in object visual angle, left side, and right eye has been blocked, when display screen show be the image of the same viewpoint in visual angle, right side the time, observer's the image that can just can see the same viewpoint in visual angle, object right side, and simultaneously left eye is blocked and has leant on, this is the quick conversion of carrying out in the effective time of persistence of vision, in observer's sensation, promptly formed the sensation of stereo-picture, shown in right side flow process among the figure.The another kind of mode that obtains stereo-picture is the complementary color formula, obtain the image of the same viewpoint of same object different visual angles at computer after, the special software important plan looks like to add colour filter to be handled, promptly two width of cloth images to the same viewpoint of different visual angles increase the Transparent color processing, the left and right sides is added different Transparent color respectively, and complementary color each other, again on the computer screen that two width of cloth image overlay are got up to show, the observer wears the glasses with add complementary color corresponding color, the image that comes observation post to show, because two eyeglasses are complementary color each other, observer's left eye and right eye are merely able to see a corresponding left side respectively, the image on right side be can't see the image of opposite side substantially, watches the sensation that promptly can form stereo-picture like this, just color is incomplete, and the user can select different view modes and glasses to observe stereo-picture.

Above-mentioned method can make ordinary consumer use ordinary digital camera just can easily obtain and watch three-dimensional image true to nature, and equipment is simple, and is easy to operate, and stereoeffect is strong.

Claims (4)

1, a kind of method that obtains the 3-D digital image mainly is made up of digital camera, special software, observation glasses.Its principal character is: take with ordinary digital camera, before shooting, choose viewpoint and visual angle, from two different angles the object of same viewpoint is taken respectively, so just can obtain the image of same object two width of cloth different angles, the image of these two width of cloth different angles is handled accordingly by the software of special use, software processes mainly is that the same area with two width of cloth images aligns, and on screen, show the image that the left and right sides is different in turn or add colour filter, put on the observation glasses again and just can reproduce real 3-D effect.

2, a kind of method that obtains the 3-D digital image according to claim 1, it is characterized in that: observing glasses is a kind of liquid crystal light valve glasses, its two eyeglasses are independently, can carry out opening and closing respectively in the different time, when the liquid crystal light valve eyes are opened, present transparent state, when the liquid crystal light valve eyes were closed, what present was dark state.

3, a kind of method that obtains the 3-D digital image according to claim 1 is characterized in that: observing glasses is a kind of red green mirror of the shape that is translucent, and two kinds of colors complementary color each other.

4, a kind of method that obtains the 3-D digital image according to claim 1, it is characterized in that: special software or machine video card can produce a synchronizing signal and offer the observation glasses, can reach corresponding observation glasses by various output interfaces, connecting line or wireless signal.