TWI243595B - Digital camera for recording three dimension images - Google Patents

Abstract

A digital camera for recording three dimension (3D) images is disclosed. The camera is a traditional digital camera equipped with a parallax function having maximum tolerance. The panel of the camera displays a hairline with graduations, a parallax reference with graduations, a horizontal level, two parallax calibration lines with graduations, right-left overlapped images. It also has the functions of image transmission between two cameras, a synchronized shutter, and other auxiliary functions. By the equipped functions, a traditional digital camera is upgraded to be a 3D digital camera. By using one 3D digital camera, the two images of the same target are recorded from different positions, or the two images of the same target are recorded by using two 3D digital cameras, which satisfies the requirement of taking perfect 3D pictures simply and quickly.

Description

1243595

Field of the Invention: The present invention is a digital camera that can stand upright. Adding some cameras to upgrade to a 3D digital camera, it reaches the road, and meets the simple and fast shooting of body images. The traditional digital camera requires two-shot, or two-shot single-shot perfect three-dimensional photos. Description of related skills:

As shown in the figure- *, the key to taking a perfect stereo photo is how to properly set the stereo base 14 and the convergence angle of the left and right cameras 12, 13 according to the distance 11 from the subject 10. c〇nvergence angle) 15 in order to obtain left and right stereo photos with appropriate parallax. As shown in FIG. 2, when using a conventional stereo camera 20 to capture stereo images, a conventional technique is to fix two optical mirrors 21 and 1 head on the same camera to achieve the purpose of taking stereo photos. However, since the two optical lenses have been fixed, it is impossible to capture the best stereo effect for landmarks at different distances. For example, for a stereo camera whose optical axis center distance (S t e r e 〇 Base) 2 2 of two optical lenses is 7 cm, the most appropriate shooting distance is 5 to

10 μM, if it exceeds 10 μM, the parallax of the left and right images is insufficient, and the stereo effect cannot be displayed. In general, for a large building, it may take tens of meters away from the building to fully include the building in the lens. In this case, it is necessary to pull the stereo base to a few meters to be effective. Obtain parallax effect, so the traditional stereo camera can not achieve the purpose of shooting large buildings. Similarly, when it is necessary to take a small object (such as a flower or an insect) at a close distance (such as tens of centimeters), you must reduce the size of st e r e 〇 b a s e

Page 4123595 Case No. 91116076 Amendment V. Description of the Invention (3) Auxiliary functions such as superimposed display, image transmission between cameras, and a synchronous shutter can upgrade traditional digital cameras to 3D digital cameras, achieving single and dual cameras It can be used for shooting, or dual-camera single shooting, and meets the requirements for simple and fast shooting of perfect stereo photos. In order to further explain the present invention, the following illustrations, drawing number descriptions, and detailed descriptions of the invention are intended to be helpful to your review committee in the review work. Detailed description of the present invention: The detailed method and application device of the present invention will be described with the following drawings to facilitate your understanding of the review committee. Before describing a digital camera capable of capturing stereo images of the present invention, it is necessary to explain the environment and requirements for capturing stereo images. Generally, when shooting three-dimensional images, you must consider all three factors, such as the subject, the shooting equipment, and the viewing environment, in order to take a perfect three-dimensional image. In general, the subject may be a temple building that is a monster, or a finger-sized insect, the shooting equipment may be a single or dual digital camera, and the viewing display may be a computer monitor or a projector. The viewing distance may be tens of centimeters to several meters. Since stereo glasses or other stereo viewing equipment cannot be worn during shooting to immediately confirm the quality of the stereo effect, the photographer cannot determine from the 2D image on the digital camera's LCD screen whether a perfect stereo image is captured. Therefore, under the condition that only the LCD monitor of the digital camera itself can be used, how to provide a shooting method that can quickly determine whether the stereo effect is good or bad is a lesson to be solved by the present invention.

Page 6 1243595 _Case No. 91116076 _ Month and Day __ V. Explanation of the invention (4). The so-called π-perfect stereo image ”means that when we are viewing this virtual stereo image, we not only have to have a natural depth of field, but we can also see the depth of field at a glance, that is, without changing the focus of the crystalline lens and Under the condition of line of sight, you can clearly and comfortably understand the virtual depth of field. Therefore, when shooting stereo images, the first thing to consider is how to provide a clear, comfortable and clear virtual stereo image when displaying the stereo image. To achieve a clear goal, you must first understand what π can be combined with the depth of stereo vision π. People's perception of stereo space is to scan the smaller space through both eyes, and then connect multiple small spaces into a complete The so-called "integrable stereo vision depth π" is when our eyes fix the focus of the lens through the ciliary muscles and fix the line of sight to a certain point in the space through the extraocular muscles. In this state, the naked eye The depth of the space you can recognize. In general, the size of π fusionable stereoscopic vision depth varies depending on the observation distance (of course, it also varies from person to person). If the observation distance is in the range of tens of centimeters to 1 meter, the depth of this visual fusionable region is only Dozens of centimeters, that is, without changing the focal length and sight of the eyes, the depth we can recognize is only tens of centimeters. Generally, the depth of field of a virtual stereo image can be caused by parallax in the left and right images. The so-called parallax is the difference between the image of the same landmark on the left and right retinas, or the difference between the left and right images after imaging through a photographic lens. As shown in FIG. 4, it is assumed that the parallax between the left image 3 2 and the right image 3 3 displayed on the screen 31 is L ρ, and the two left and right images are transmitted through various

1243595 Amendment _Case No. 91116076_May 5, Description of the invention (5) Possible methods (such as LCD shutter glasses or polarized glasses), so that the left eye 3 4 can only see the left image 3 2, the right eye 3 5 The right image 3 3 is seen, and the distance between the left and right eyes (equivalent to stereobase) is Le. When the viewing distance is D e, the virtual depth presented by the left and right images is D v, then the virtual depth is D and the parallax L p, the distance between the eyes L e, and the viewing distance D 妁 The geometric relationship is: D v-D e XL p / CL e ~ Lp) For example, when the parallax L p = 3 cm, the distance between the eyes L e = 6.5 cm, and the viewing distance De = 50 cm, the virtual depth D is about 43 cm. Therefore, for a person with an eye distance of 6.5cm and a viewing distance of 50cm, when the parallax Lsen is 3c in, the virtual depth seen is 4 3 cm. When the viewing distance is in the range of 50 to 60 cm, the possible "integrable stereo vision depth π" is about 30 to 50 cm. Therefore, in order to view the virtual stereo image comfortably at a glance, the virtual image The maximum allowable virtual depth n D vma $ of π can exceed the fusion depth of stereo vision π. Therefore, according to the previous calculation results, the parallax of the left and right images needs to be limited in the range of viewing distance of 50 ~ 60 cm. Below 3 cm, 3 cm is the "allowable maximum reproduction parallax n L smax. In the following, a mathematical formula can be used to illustrate the relationship between the "allowable maximum reproducible parallax n L sma" and the distance between two eyes Le, viewing distance De, and π allowable maximum virtual depth n Dvma 妁. L smax-L e X Dvmax / (Dvmax + De) Therefore, when shooting three-dimensional images, in order to make the left and right images captured when they are reproduced on the screen, can achieve a clear effect, the allowable maximum reproduction parallax n L smax relative to π when viewing, you need to define another One π can allow the maximum shooting parallax n L cmax, in order to fully grasp the stereo photography

1243595 hold the most curtain the most

L case number 9111607fi, description of the invention (6) _ The best parallax effect when the last stereo image is reproduced Large shooting parallax "Lcmax is the left and right shadows when shooting. That is," the maximum permissible parallax allowed above. Different from. For example, when the camera ’s LCD silver size is Sc, and the screen size used for viewing is large, the LCD screen ’s large reproducible parallax “Lsmax” actually corresponds to this at the camera ^ night am ′, and the “allowable maximum shooting parallax” L ema is different. What You Can See on the Yang Screen > Sc / Sm

cmax smax

X For example ... "Allowable maximum reproduction parallax

The size of the L-screen is Sc = 1.5 ", the viewing screen size: two 'icm, the camera lens allows the maximum shooting parallax" L⑽ is 3mm. That is, when ^, 5 ”, then the maximum parallax presented under the condition of“ comfortable viewing of the virtual stereoscopic image ”can not exceed 3 mm. . Above the camera screen, the geometry that is taken into account when shooting stereoscopic images is explained under the requirements of comfortable viewing of virtual stereoscopic images at a glance. // According to the distance between the eyes, the viewing distance and the "permissible maximum virtual depth first H allowable maximum "Reproducing parallax"; then calculate the "allowable maximum parallax for parallax" based on the ratio of the screen size of the camera screen to the screen size. Η Bei, Gen invention_ ^ 疋, Ben Zeng "digital cameras that can capture stereo images First of all, the function of the maximum shooting parallax of the ancient Shizun shoot can be embedded in the digital camera, you Li, Ge Li ... Before the stereo image, the user enters the distance between the eyes and the viewing distance. "Maximum virtual depth" and the acquisition of viewing screen _ 畀 ν, "Temple parameters, to dare to be good," allows the maximum shooting parallax π. The present invention is a digital camera that can capture stereo images, according to 1 ”maximum shooting parallax this time”, and the LCD poor screen of digital cameras

Page 9 1243595 Case No. 9Π16076 A_ Brief description of the correction pattern 3 2-left image 3 3-right image 3 4-left eye 3 5-right eye 5 0-digital camera 5 1 _digital camera LCD screen 5 2- Digital camera control keys 5 3-Digital camera image transmission device 5 4-Digital camera wireless remote shutter device 5 5-Digital camera shutter 6 0-Crosshair cross-center scale 6 1-Horizontal parallax reference scale 6 2 -Major scale of horizontal parallax reference scale 6 3-Minor scale of horizontal parallax reference scale 6 4-Horizontal alignment line 6 5, 6 6-Parallax alignment line 7 1-left image 7 2-right image 7 3-left image The deepest point t 7 4-the corresponding point of the right image corresponding to the deepest point of the left image 7 5-a reference point on the left image 7 6-the corresponding point of the right image corresponding to a reference point of the left image Le-left and right Eye distance D e-viewing distance

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Claims (1)

ljilm i JL bow p rF-* i 111 1243595 _Amendment VI. Patented digital phase of the force image • It is a control on a conventional digital camera: ::: Large, the setting of parallax can be passed through The digital camera key X enters several parallaxes to count the value of the parallax. · The number of sub-meters should be the maximum allowable _, the display of the ten sub-line quasi-centered scale, which is composed of the old & A t + ^, Meng's straight line and horizontal line ", and be not on the screen of the digital camera; horizontal parallax refers to a wide range of strong-and vertical scales arranged at equal distances: ':, from several screens extending horizontally; 'It can be displayed on the digital camera. It is composed of a horizontal line. It is composed of two vertical lines. It can display the left and right images by a horizontal calibration line. It can be displayed on the digital camera screen. Two parallax calibration Line display, and it can be displayed on the screen of digital camera. — The left and right images are overlapped and displayed on the screen of the camera; the camera, or: j ::::: can send the image to other similar types together Shutter, the camera that receives the image; when the camera is used for single shooting, the shutter device can be controlled by the dual author; and the camera shutter of the 7 ^ 〇 is synchronized in a synchronous manner. The setting system 4 is a dual-camera single-shot stereo camera ^, which can provide users with dual-camera single-shot or perfect stereo photos, and meet the simple and fast shooting i page 17 1243595 Amendment Month No. 911160 6. Scope of Patent Application 2. A digital camera capable of capturing stereo images as described in item 1 of the scope of patent application, wherein the display of the maximum permissible parallax value is displayed by means of a scale. On the screen of a digital camera for reference in 3D photography. 3. A digital camera capable of shooting stereoscopic images as described in item 1 of the scope of patent application, wherein the parallax parameter of the maximum allowable shooting parallax is the binocular distance, the viewing distance, the maximum allowable virtual depth, and the digital camera screen Size and viewing screen size, the calculation method of the allowable maximum shooting parallax is: where D ma γ DSS allows the maximum shooting parallax x Sc / Sm, Le: distance between binoculars x: allowable maximum virtual depth viewing distance digital camera screen Size Watch the screen size. XD vmax (D 4. A digital camera capable of capturing stereoscopic images as described in item 1 of the scope of patent application, wherein the vertical line and horizontal line formed by the crosshair cross-center scale are orthogonal to the center point of the digital camera screen. 5. A digital camera capable of capturing stereoscopic images as described in item 1 of the scope of patent application, wherein the horizontal parallax reference scale can be divided into a major scale and a minor scale, and the interval between the major scales is set to allow the maximum shooting parallax ; And the horizontal parallax reference scale can be moved up and down through the control keys on the digital camera. Page 18 Case number 1 1243595 6. Scope of patent application 6. As described in item 丨 of the scope of patent application-a stereo camera that can be photographed: where the horizontal calibration line 'can be moved through the camera image: the number key above and below. Mechanical control 7. A stereoscopic and positionable camera as described in item 1 of the scope of patent application, where the two parallax calibration lines are the number of transmissive = image control keys to move the person horizontally. 8 on a bit camera · A kind of recordable bit camera as described in item 1 of the scope of patent application, in which the left and right images are overlapped and displayed: : ^ In the case of single-camera dual-shot, one of them is to overlap with the other image being shot at the same time as the one that has been shot ^, can be the same as above; when the camera is dual-camera single-shot, make the two Digital phase = pass the image to each other, and the received image and current;; =: superimposed on the camera screen. ~ Image weight 9. A kind of recordable bit camera as described in item 丨 of the patent application scope, wherein the left and right images are superimposed on the display body: the number-interleaved format or color-separated format of the image. It is the wrong format and vertical interlaced format. The horizontal interlaced image ^: ^ is the horizontal intersecting image individually scanned on an odd number of scan lines and even numbers ^ ^ 疋 The left and right images are directly interlaced. The left and right images are individually formatted as = Line, the vertical vertical scanning line, the so-called staggered pattern is the left, ^ ^ and even number of the odd number of scanning lines and even number of scanning lines, ^ single image scanning, the left and right images are scanned with different primary colors. ^ ^ Color separation format is ΪΜΓΊΗ page 19