Stereoscopic imaging device

Abstract

A stereoscopic photographic device includes a first camera, a second camera and a controller. The first camera is used for shooting an object to obtain a first image of the object. The second camera is used for shooting the object to obtain a second image of the object. The controller is electrically connected to the first camera and the second camera. The controller synthesizes the first image and the second image to generate a stereoscopic image of the object. By means of the controller, the first camera and the second camera are controlled so that the inclination angle between the optical axis of the first camera and the optical axis of the second camera is larger than 0. Alternatively, the controller image-processes the first image and the second image such that the processed first image and the processed second image are equivalent to the image captured at an inclination angle greater than 0 between the optical axis of the first camera and the optical axis of the second camera.

Description

Technical Field

[0001] The present invention relates to a photographic device, in particular to a stereoscopic photographic device. Background Art

[0002] The principle of human eyes to perceive stereoscopic vision is that there is a distance between the left and right eyes, so the left and right eyes see different images. Based on this principle, the stereoscopic photography devices on the market use two cameras to shoot objects in a way that the optical axes are parallel, and then the captured images are combined into a stereoscopic image.

[0003] However, the stereoscopic images captured by the stereoscopic photography devices currently on the market have the following problems. When the stereoscopic images are presented (for example, through a 3D display), there is a problem of mismatch between the vergence of the eyes and the accommodation of the eyes, namely, vergence-accommodation conflict (VAC), which causes visual fatigue and physical discomfort. In addition, the shooting method of the above-mentioned stereoscopic photography devices cannot display the stereoscopic images behind the screen and is not suitable for close-up shooting. Summary of the invention

[0004] The present invention provides a stereoscopic photography device, which can effectively reduce the problem of visual convergence adjustment conflict of stereoscopic images and provide good stereoscopic visual effect.

[0005] One embodiment of the present invention provides a stereoscopic photography device, which includes a first camera, a second camera and a controller. The first camera is used to shoot at an object to obtain a first image of the object. The second camera is used to shoot at an object to obtain a second image of the object. The controller is electrically connected to the first camera and the second camera. The controller synthesizes the first image and the second image to generate a stereoscopic image of the object. By means of the controller, the first camera and the second camera are controlled so that the inclination angle of the optical axis of the first camera and the optical axis of the second camera is greater than 0. Or, the controller processes the first image and the second image so that the processed first image and the processed second image are equivalent to the image taken when the inclination angle of the optical axis of the first camera and the optical axis of the second camera is greater than 0.

[0006] Based on the above, the first camera and the second camera in the stereoscopic photography device can be controlled so that the inclination angles of the optical axes of the first camera and the second camera are greater than 0; or, the controller processes the first image and the second image so that the processed first image and the processed second image are equivalent to the image captured when the inclination angles of the optical axes of the first camera and the second camera are greater than 0. Therefore, the stereoscopic photography device can present the stereoscopic image in front of or behind the 3D screen, and the stereoscopic photography device can be suitable for close-up photography. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 is a schematic diagram of a stereoscopic photography device according to an embodiment of the present invention;

[0008] Figure 2 is a schematic diagram of a stereoscopic image captured by a stereoscopic photography device relative to two eyes according to an embodiment of the present invention;

[0009] Figure 3 is a schematic diagram of an object relative to a first camera and a second camera when a stereoscopic photography device is photographing an object according to an embodiment of the present invention;

[0010] Figure 4 is a stereoscopic photographing device according to an embodiment of the present invention, wherein Z con The curve of baseline length versus parallax when the value is 600mm;

[0011] Figure 5 is a schematic diagram of a stereoscopic photography device according to an embodiment of the present invention;

[0012] Figure 6 is a schematic diagram of a length of a baseline relative to a shooting distance of a stereoscopic photography device according to an embodiment of the present invention;

[0013] Figure 7 is a schematic diagram of a stereoscopic photography device according to an embodiment of the present invention;

[0014] Figure 8 is a flow chart of generating a stereoscopic image by a stereoscopic photography device according to an embodiment of the present invention;

[0015] Fig. 9 is a schematic diagram of a stereoscopic photography device according to an embodiment of the present invention, in which the display size corresponds to the shooting distance;

[0016] Fig.10 is a schematic diagram of a processed first image and a processed second image generated by a stereoscopic photography device according to an embodiment of the present invention;

[0017] Fig.11 It is a schematic diagram of an object relative to a first camera and a second camera when a stereoscopic photography device photographs the object according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] Figure 1 is a schematic diagram of a stereoscopic photographic device according to an embodiment of the present invention. Figure 1 An embodiment of the present invention provides a stereoscopic photography device 10, which includes a first camera 100, a second camera 200 and a controller 300.

[0019] In this embodiment, the first camera 100 and the second camera 200 may be complementary metal oxide semiconductor (CMOS) cameras or charge coupled device (CCD) cameras, but the present invention is not limited thereto. The first camera 100 is used to shoot at the object O to obtain a first image I1 of the object O. The second camera 200 is used to shoot at the object O to obtain a second image I2 of the object O.

[0020] In this embodiment, the controller 300 includes, for example, a microcontroller unit (MCU), a central processing unit (CPU), a microprocessor (microprocessor), a digital signal processor (DSP), a programmable controller, a programmable logic device (PLD) or other similar devices or a combination of these devices, and the present invention is not limited. In addition, in one embodiment, each function of the controller 300 can be implemented as a plurality of program codes. These program codes will be stored in a memory, and the controller 300 will execute these program codes. Alternatively, in one embodiment, each function of the controller 300 can be implemented as one or more circuits. The present invention is not limited to implementing each function of the controller 300 in software or hardware.

[0021] In this embodiment, the controller 300 is electrically connected to the first camera 100 and the second camera 200. The controller 300 synthesizes the first image I1 and the second image I2 to generate a stereoscopic image of the object O. The first camera 100 and the second camera 200 are controlled by the controller 300 so that the inclination angles θ1 and θ2 of the optical axis A1 of the first camera 100 and the optical axis A2 of the second camera 200 are greater than 0.

[0022] Figure 2 is a schematic diagram of a stereoscopic image captured by a stereoscopic photography device according to (for example, using) an embodiment of the present invention relative to two eyes. Figure 1 and Figure 2In this embodiment, the distances d and d' between the imaging positions D1 and D1' of the stereoscopic image SI of the object O and the display surface DP are greater than 0, wherein the intersection position P2 of the optical axis A1 of the first camera 100 and the optical axis A2 of the second camera 200 falls on the display surface DP, the display surface DP is parallel to the baseline B, and the straight line formed between the first camera 100 and the second camera 200 is the baseline B.

[0023] In a preferred embodiment, the difference between the angles α1, α1' formed by the first straight line L1, L1' and the second straight line L2 and the angle α2 formed by the third straight line L3 and the second straight line L2 falls between ±0.5 degrees, wherein the straight line formed between the imaging position D1, D1' of the stereoscopic image SI of the object O and the position of the preset left eye LE or the preset right eye is the first straight line L1, L1', the straight line perpendicular to the connection direction between the position of the preset left eye LE and the position of the preset right eye and formed in the direction of the stereoscopic image SI is the second straight line L2, and the straight line formed between the line of sight center CT of the preset left eye LE and the preset right eye on the display surface DP and the position of the preset left eye LE or the preset right eye is the third straight line L3.

[0024] Specifically, the first camera 100 and the second camera 200 shoot at the object O at positions C1 and C2, respectively, and the intersection position (i.e., the focus position) P2 of the optical axis A1 of the first camera 100 and the optical axis A2 of the second camera 200 defines the display surface DP. Figure 1 That is to say, the stereoscopic image SI synthesized by the stereoscopic photography device 10 is presented by, for example, a 3D display (but the present invention is not limited thereto), and the display surface of the 3D display is Figure 1 or Figure 2 When the stereoscopic image SI is presented, the stereoscopic image SI located between the display surface DP and the viewer will produce an effect of the image floating out of the display, while the display surface DP located between the stereoscopic image SI and the viewer will produce an effect of the image sinking into the display. For example, when the imaging position of the stereoscopic image SI is at D1, the stereoscopic image SI sinks into the display; when the imaging position of the stereoscopic image SI is at D1', the stereoscopic image SI floats out of the display. When the imaging position of the stereoscopic image SI is located on the display surface DP, the stereoscopic image SI will not present a 3D effect.

[0025] In addition, when shooting, if the object O is located between the display surface DP and the first camera 100 or the second camera 200, the stereoscopic image SI is located between the display surface DP and the viewer. Conversely, if the display surface DP is located between the object O and the first camera 100 or the second camera 200, the display surface DP is located between the stereoscopic image SI and the viewer. For example, when the display surface DP is located between the object O and the first camera 100 or the second camera 200, the imaging position of the stereoscopic image SI is at D1; when the object O is located between the display surface DP and the first camera 100 or the second camera 200, the imaging position of the stereoscopic image SI is at D1'.

[0026] Based on the above, in this embodiment, since the generated image is required to have a visual 3D effect, the condition that the distances d and d' between the imaging positions D1 and D1' of the stereoscopic image SI of the object O and the display surface DP are greater than 0 must be met, or the condition that the distance D between the position P1 of the object O and the display surface DP is greater than 0 must be met. However, in a preferred embodiment, when the difference between the angles α1 and α1' and the angle α2 falls within ±0.5 degrees, the stereoscopic photography device 10 can further effectively reduce the problem of the visual convergence adjustment conflict of the stereoscopic image SI and provide a good stereoscopic visual effect.

[0027] Table 1

[0028]

[0029]

[0030] For example, Table 1 above illustrates the values ​​of the stereoscopic image SI at imaging position D1' (the difference between the angle α1' and the angle α2 is +0.5 degrees) and imaging position D1 (the difference between the angle α1 and the angle α2 is -0.5 degrees) at different viewing distances (i.e., the distance between the human eye and the display surface DP) VD, wherein the unit of each value is mm.

[0031] Figure 3 It is a schematic diagram of an object relative to a first camera and a second camera when a stereoscopic photography device photographs the object according to an embodiment of the present invention. Figure 4 is a stereoscopic photographing device according to an embodiment of the present invention, wherein Z con The baseline length is plotted against parallax when the sensor is 600 mm. Figure 3 and Figure 4 In this embodiment, the controller 300 determines the shortest distance Z between the display surface DP and the baseline B. con, a preset viewing distance VD and a baseline function determine the length of the baseline B, wherein the preset viewing distance VD is the distance between the position of the preset left eye LE or the preset right eye and the display surface DP, and the straight line formed between the first camera 100 and the second camera 200 is the baseline B. The baseline function is:

[0032]

[0033] Where (x t -x t ') is the parallax between the first image I1 and the second image I2, x t is the distance between the imaging point IP1 of the first image I1 and the optical axis A1 of the first camera 100, x t ' is the distance between the imaging point IP2 of the second image I2 of the second camera 200 and the optical axis A2 of the second camera 200, f is the focal length of the first camera 100 and the second camera 200, B' is the length of the baseline B, Z is the shortest distance between the object O and the baseline B, and Z con It is the shortest distance between the display surface DP and the baseline B.

[0034] In this embodiment, the controller 300 further determines the shortest distance Z between the display surface DP and the baseline B. con , the preset viewing distance VD and the baseline function determine the photographable range of the object O.

[0035] For example, in Figure 4 In the figure, the vertical axis is the parallax and the horizontal axis is the length of the baseline B. When the parallax is positive, the stereoscopic image SI will sink into the display. When the parallax is negative, the stereoscopic image SI will float out of the display. Curves VD1 and VD2 both represent the straight line formed by the viewing distance VD of 600mm. Curves E1, E2, E3, E4, E5, E6, E7, E8, E9, and E10 are the baseline functions at the shortest distance Z (i.e. Figure 3 The object distance between the baseline B and the object O shown in FIG. 1 is infinity, 3000 mm, 1800 mm, 1400 mm, 380 mm, 360 mm, 330 mm, 300 mm, 260 mm, and 200 mm, respectively. For example, the intersection of the curve VD1 and the curve E4 and the intersection of the curve VD2 and the curve E5 falls on the baseline B length of 70 mm. Therefore, when Z con is 600 mm, and VD is 600 mm, the length of the baseline B can be selected to be 70 mm, and the photographable range of the object O is preferably 380 mm to 1400 mm.

[0036] Figure 5 is a schematic diagram of a stereoscopic photographic device according to an embodiment of the present invention. Figure 5The stereoscopic photographic device 10A is similar to the stereoscopic photographic device 10, and the main difference is that the stereoscopic photographic device 10A further includes a first actuator 400 and a second actuator 500. In this embodiment, the first actuator 400 and the second actuator 500 include driving devices such as motors and stepping motors.

[0037] In this embodiment, the first actuator 400 is connected to the first camera 100 and is electrically connected to the controller 300. The first actuator 400 is used to change the angle of the optical axis A1 of the first camera 100 and the position C1 of the first camera 100. The second actuator 500 is connected to the second camera 200 and is electrically connected to the controller 300. The second actuator 500 is used to change the angle of the optical axis A2 of the second camera 200 and the position C2 of the second camera 200.

[0038] In this embodiment, the controller 300 determines the distance to the object (i.e., the shortest distance Z), the preset viewing distance VD, and the preset pupil distance (e.g., Figure 2 Or the distance of the straight line IPD formed between the left eye LE and the right eye RE shown in Figure 6), control the first actuator 400 and the second actuator 500 to change the inclination angle θ1 of the first camera 100, the inclination angle θ2 of the second camera 200 or the distance between the first camera 100 and the second camera 200 (i.e., the length of the baseline B).

[0039] Figure 6 Schematic diagram of the length of the baseline relative to the shooting distance of a stereoscopic photography device according to an embodiment of the present invention. Figure 6 In this embodiment, the distance between the first camera 100 and the second camera 200 is proportional to the shooting distance. con ) is less than the viewing distance VD, the length of the baseline B can be reduced. con ”) is greater than the viewing distance VD, the length of the baseline B” can be increased.

[0040] Based on the above, in one embodiment of the present invention, since the stereoscopic camera device 10A is provided with the first actuator 400 and the second actuator 500, the stereoscopic camera device 10A can change the angle of the optical axis A1 of the first camera 100, the position C1 of the first camera 100, the angle of the optical axis A2 of the second camera 200, and the position C2 of the second camera 200 by means of the first actuator 400 and the second actuator 500. Therefore, the stereoscopic camera device 10A can change the distance and angle between the first camera 100 and the second camera 200 in accordance with the shooting distance. The other advantages of the stereoscopic camera device 10A are similar to those of the stereoscopic camera device 10, and will not be described in detail here.

[0041] Figure 7 is a schematic diagram of a stereoscopic photographic device according to an embodiment of the present invention. Figure 7 The stereoscopic photographic device 10B is similar to the stereoscopic photographic device 10A, and the main difference is that the stereoscopic photographic device 10B further includes a distance sensor 600. In this embodiment, the distance sensor 600 is, for example, a time-of-flight distance sensor, an ultrasonic sensor, an infrared distance sensor, or other distance sensors.

[0042] In this embodiment, the distance sensor 600 is electrically connected to the controller 300. The distance sensor 600 is used to sense the object distance between the baseline B and the object O (ie, the shortest distance Z).

[0043] Figure 8 is a flow chart of a stereoscopic image generated by a stereoscopic photography device according to an embodiment of the present invention. Figure 8 In this embodiment, the controller controls the first actuator 400 and the second actuator 500 according to the distance of the object, the preset viewing distance VD and the preset pupil distance to change the inclination angle θ1 of the first camera 100, the inclination angle θ2 of the second camera 200 or the distance between the first camera 100 and the second camera 200.

[0044] Based on the above, in one embodiment of the present invention, since the stereoscopic camera device 10B is provided with a distance sensor 600, the stereoscopic camera device 10B can sense the object distance between the baseline B and the object O through the distance sensor 600. Therefore, the stereoscopic camera device 10B can change the inclination angle θ1 of the first camera 100, the inclination angle θ2 of the second camera 200, or the distance between the first camera 100 and the second camera 200 according to the object distance, the preset viewing distance VD, and the preset pupil distance. The remaining advantages of the stereoscopic camera device 10B are similar to those of the stereoscopic camera device 10A, and are not described in detail here.

[0045] Fig. 9 Schematic diagram of a stereoscopic photographing device according to an embodiment of the present invention, showing the display size corresponding to the shooting distance. Fig. 9 In one embodiment, as the size of the display for presenting the stereoscopic image SI becomes larger, the stereoscopic photography devices 10, 10A, 10B are adapted to increase their shooting distance (i.e., the shortest distance Z con ). For example, area R1 is for viewing the stereoscopic image SI using a small-sized screen (such as a mobile phone, tablet, etc.), which is suitable for setting the shooting distance to 300±100mm. Area R2 is for viewing the stereoscopic image SI using a 15.6-inch screen (such as a laptop screen), which is suitable for setting the shooting distance to 600±200mm. Area R3 is for viewing the stereoscopic image SI using a large-sized screen such as a TV, which is suitable for setting the shooting distance to 900±300mm.

[0046] Fig.10 2 is a schematic diagram of a stereoscopic photography device generating a processed first image and a processed second image according to an embodiment of the present invention. Fig.11 is a schematic diagram of an object relative to a first camera and a second camera when a stereoscopic photography device according to an embodiment of the present invention is photographing an object. Fig.10 and Fig.11 In this embodiment, the controller 300 processes the first image I1 and the second image I2 so that the processed first image PI1 and the processed second image PI2 are equivalent to images captured when the inclination angles θ1 and θ2 of the optical axis A1 of the first camera 100 and the optical axis A2 of the second camera 200 are greater than 0.

[0047] In this embodiment, the optical axis A1 ′ of the first camera 100 and the optical axis A2 ′ of the second camera 200 are parallel to each other and perpendicular to the display surface DP.

[0048] In this embodiment, the processed first image PI1 is an image obtained by cutting out the portion of the first image I1 away from the photographic system center ST, and the processed second image PI2 is an image obtained by cutting out the portion of the second image I2 away from the photographic system center ST. The photographic system center ST is the center of the straight line formed between the first camera 100 and the second camera 200. For example, Fig.10 In the figure, the processed first image PI1 is the first image I1 with the left portion cut off, which is equivalent to the optical axis A1' of the first camera 100 rotating rightward to form the following Figure 1 The processed second image PI2 is a second image I2 with the right portion cut off, which is equivalent to the optical axis A2' of the second camera 200 rotating to the left to form Figure 1 The inclination angle θ2 is shown.

[0049] In this embodiment, the controller 300 performs the following conversion on the first image I1 and the second image 200 to generate a processed first image PI1 and a processed second image PI2:

[0050] as well as

[0051]

[0052] where x t is the distance between the imaging point IP1 of the first image I1 on the first camera 100 and the optical axis A1 of the first camera 100 when the inclination angle θ1 of the optical axis A1 of the first camera 100 is greater than 0, x t' is the distance between the imaging point IP2 of the second image I2 on the second camera 200 and the optical axis A2 of the second camera 200 when the inclination angle θ2 of the optical axis A2 of the second camera 200 is greater than 0, x s is the distance between the imaging point IP1′ of the first image I1 on the first camera 100 and the optical axis A1′ of the first camera 100 when the inclination angle of the optical axis A1′ of the first camera 100 is equal to 0, x s ' is the distance between the imaging point IP2' of the second camera 200 and the optical axis A2' of the second camera 200 when the inclination angle of the optical axis A2' of the second camera 200 is equal to 0.

[0053] That is to say, Fig.10 As shown, the first image I1 and the second image I2 are cut off from the portion away from the center ST of the camera system to produce the effect of rotating the optical axis A1' of the first camera 100 and the optical axis A2' of the second camera 200. However, if only the cut images are synthesized, the stereoscopic image SI will be deformed. Therefore, the stereoscopic camera device further performs the above (x t ,x t ') conversion, so that the processed first image PI1 and the processed second image PI2 can be close to the first image I1 and the second image I2 taken when the inclination angle θ1 of the optical axis A1 of the first camera 100 is greater than 0 and the inclination angle θ2 of the optical axis A2 of the second camera 200 is greater than 0.

[0054] In summary, in one embodiment of the present invention, a stereoscopic photography device includes a first camera, a second camera, and a controller. The first camera and the second camera can be controlled so that the inclination angle of the optical axis of the first camera and the optical axis of the second camera is greater than 0; or, the controller processes the first image and the second image so that the processed first image and the processed second image are equivalent to an image taken when the inclination angle of the optical axis of the first camera and the optical axis of the second camera is greater than 0. Therefore, the stereoscopic photography device can present a stereoscopic image in front of or behind a 3D screen, and the stereoscopic photography device can be suitable for close-up photography.

[0055] In addition, in the embodiment of the present invention, the shooting method of the stereoscopic photography device is designed such that the difference between the angle formed by the first straight line and the second straight line and the angle formed by the third straight line and the second straight line falls within ±0.5 degrees, which can effectively reduce the problem of visual convergence adjustment conflict of the stereoscopic image. Therefore, the stereoscopic photography device can provide a good stereoscopic visual effect.

Claims

1. A stereoscopic photography device, characterized in that: include: A first camera is used to shoot toward an object to obtain a first image of the object; A second camera is used to shoot toward the object to obtain a second image of the object; as well as A controller electrically connected to the first camera and the second camera, wherein the controller synthesizes the first image and the second image to generate a stereoscopic image of the object, in: By means of the controller, the first camera and the second camera are controlled so that the inclination angles of the optical axes of the first camera and the second camera are greater than 0; or The controller image processes the first image and the second image so that the processed first image and the processed second image are equivalent to images taken at multiple inclination angles greater than 0 of the optical axis of the first camera and the optical axis of the second camera.

2. The stereoscopic photography device according to claim 1, characterized in that: When the plurality of inclination angles are greater than 0: The distance between the imaging position of the stereoscopic image of the object and the display surface is greater than 0, wherein the intersection position of the optical axis of the first camera and the optical axis of the second camera falls on the display surface, the display surface is parallel to the baseline, and the straight line formed between the first camera and the second camera is the baseline.

3. The stereoscopic photography device according to claim 1, characterized in that: When the plurality of inclination angles are greater than 0: The difference between the angle formed by the first straight line and the second straight line and the angle formed by the third straight line and the second straight line falls within ±0.5 degrees, wherein the straight line formed between the imaging position of the stereoscopic image of the object and the position of a preset left eye or a preset right eye is the first straight line, the straight line formed perpendicular to the connection direction between the position of the preset left eye and the position of the preset right eye and in the direction of the stereoscopic image is the second straight line, and the straight line formed between the line of sight centers of the preset left eye and the preset right eye on the display surface and the position of the preset left eye or the preset right eye is the third straight line, the intersection position of the optical axis of the first camera and the optical axis of the second camera falls on the display surface, the display surface is parallel to the baseline, and the straight line formed between the first camera and the second camera is the baseline.

4. The stereoscopic photography device according to claim 1, characterized in that: When the plurality of inclination angles are greater than 0: The controller determines the length of the baseline according to the shortest distance between the display surface and the baseline, a preset viewing distance, and a baseline function, wherein the intersection position of the optical axis of the first camera and the optical axis of the second camera falls on the display surface, the display surface is parallel to the baseline, a straight line formed between the first camera and the second camera is the baseline, the preset viewing distance is the distance between the position of a preset left eye or a preset right eye and the display surface, and the baseline function is: Where (x t -x t ') is the disparity between the first image and the second image, x t is the distance between the imaging point of the first image on the first camera and the optical axis of the first camera, x t ' is the distance between the imaging point of the second image on the second camera and the optical axis of the second camera, f is the focal length of the first camera and the second camera, B' is the length of the baseline, Z is the shortest distance between the object and the baseline, and Z con is the shortest distance between the display surface and the baseline.

5. The stereoscopic photography device according to claim 1, characterized in that: When the plurality of inclination angles are greater than 0: The controller determines a photographable range of the object according to the shortest distance between the display surface and the baseline, a preset viewing distance, and a baseline function, wherein the intersection position of the optical axis of the first camera and the optical axis of the second camera falls on the display surface, the display surface is parallel to the baseline, a straight line formed between the first camera and the second camera is the baseline, the preset viewing distance is the distance between the position of a preset left eye or a preset right eye and the display surface, and the baseline function is: Where (x t -x t ') is the disparity between the first image and the second image, x t is the distance between the imaging point of the first image on the first camera and the optical axis of the first camera, x t ' is the distance between the imaging point of the second image on the second camera and the optical axis of the second camera, f is the focal length of the first camera and the second camera, B' is the length of the baseline, Z is the shortest distance between the object and the baseline, and Z con is the shortest distance between the display surface and the baseline.

6. The stereoscopic photography device according to claim 1, characterized in that: Also includes: a first actuator connected to the first camera and electrically connected to the controller, the first actuator being used to change the angle of the optical axis of the first camera and the position of the first camera; as well as The second actuator is connected to the second camera and electrically connected to the controller. The second actuator is used to change the angle of the optical axis of the second camera and the position of the second camera.

7. The stereoscopic photography device according to claim 6, characterized in that: When the multiple inclination angles are greater than 0: The controller controls the first actuator and the second actuator according to the distance of the object, the preset viewing distance and the preset pupil distance to change the inclination angle of the first camera, the inclination angle of the second camera or the distance between the first camera and the second camera.

8. The stereoscopic photography device according to claim 7, characterized in that: The distance between the first camera and the second camera is proportional to the shooting distance.

9. The stereoscopic photography device according to claim 6, characterized in that: Also includes: A distance sensor is electrically connected to the controller, and is used to sense the distance between a baseline and the object, wherein a straight line formed between the first camera and the second camera is the baseline.

10. The stereoscopic photography device according to claim 9, characterized in that: When the multiple inclination angles are greater than 0: The controller controls the first actuator and the second actuator according to the object distance, the preset viewing distance and the preset pupil distance to change the inclination angle of the first camera, the inclination angle of the second camera or the distance between the first camera and the second camera.

11. The stereoscopic photography device according to claim 1, characterized in that: As the size of the display for presenting the stereoscopic image becomes larger, the stereoscopic photography device is adapted to increase its shooting distance.

12. The stereoscopic photography device according to claim 1, characterized in that: When the controller processes the first image and the second image so that the processed first image and the processed second image are equivalent to the multiple images taken when the multiple inclination angles of the optical axis of the first camera and the optical axis of the second camera are greater than 0, the optical axis of the first camera and the optical axis of the second camera are parallel to each other and perpendicular to the display surface, When the multiple inclination angles of the multiple optical axes of the first camera and the second camera are greater than 0, the intersection position of the optical axis of the first camera and the optical axis of the second camera falls on the display surface, and the display surface is parallel to the baseline, which is the straight line formed between the first camera and the second camera.

13. The stereoscopic photography device according to claim 12, characterized in that: wherein the processed first image is an image obtained by cutting out a portion of the first image that is away from a center of a photographic system, and the processed second image is an image obtained by cutting out a portion of the second image that is away from a center of the photographic system, The center of the photographic system is the center of the straight line formed between the first camera and the second camera.

14. The stereoscopic photography device according to claim 12, characterized in that: wherein the controller performs conversion on the first image and the second image to generate the processed first image and the processed second image: as well as where x t is the distance between the imaging point of the first image on the first camera and the optical axis of the first camera when the inclination angle of the optical axis of the first camera is greater than 0, x t ' is the distance between the imaging point of the second image on the second camera and the optical axis of the second camera when the inclination angle of the optical axis of the second camera is greater than 0, x s is the distance between the imaging point of the first image on the first camera and the optical axis of the first camera when the inclination angle of the optical axis of the first camera is equal to 0, x s ' is the distance between the imaging point of the second image in the second camera and the optical axis of the second camera when the inclination angle of the optical axis of the second camera is equal to 0, B' is the length of the baseline, Z is the shortest distance between the object and the baseline, Z con is the shortest distance between the display surface and the baseline.

Images