JP6002204B2 - 3D display device calibration system and calibration method thereof - Google Patents

Description

  The present invention relates to the technical field of stereoscopic display, and more particularly to a calibration system for a stereoscopic display apparatus that calibrates the mounting error of an optical device of the stereoscopic display apparatus by measuring parameters of the stereoscopic display apparatus and a calibration method thereof. It is.

  The imaging principle of the stereoscopic image display technique is as follows. Based on the parallax of the eyes of the observer, a parallax diagram having an image difference is sensed by the left eye and the right eye of the observer, respectively, and a stereoscopic image is formed by the observer's brain based on the sensed image difference.

  As shown in FIG. 1, the conventional stereoscopic display device 1 includes a spectroscopic device 11 and a display panel 12, and the spectroscopic device 11 is provided on the light emission side of the display panel 12. The left image and the right image having an image difference are provided by the display panel 12, and the left image enters the observer's left eye, the right image enters the observer's right eye, and the observer's brain by the spectroscopy of the spectroscopic device 11. Based on the sensed image difference, a stereoscopic image vision is formed.

  At the time of display, precise cooperation between the spectroscopic device 11 and the display panel 12 is required in order to avoid the crosstalk problem that the left image enters the observer's right eye and the right image enters the observer's left eye. However, since the mounting error between the spectroscopic device 11 and the display panel 12 is unavoidable during mounting, the spectroscopic device 11 cannot be accurately bonded to the display panel 12 as required by design, and crosstalk and stereoscopic display effects are prevented. Is not excellent, or the stereoscopic imaging requirement cannot be satisfied. If the 3D display device is not processed before shipment, it directly affects the user experience and further limits the development of 3D display technology.

  In the prior art, a method for calibrating a liquid crystal slit optical lattice stereoscopic display device has been proposed. By performing a cutting process on the first lead electrode, calibration is performed so that the initial states of the liquid crystal slits coincide with each other. Such a calibration method for the stereoscopic display device is performed before the liquid crystal slit optical grating and the display panel are bonded together. However, during the bonding, the mounting error between the liquid crystal slit optical grating and the display panel cannot be reduced, and the display effect of the stereoscopic display device after the bonding is not excellent.

  In the prior art, a parameter measurement system for a stereoscopic display device has been proposed. The actual value of the optical lattice parameter of the stereoscopic display device can be measured by detecting a projection image formed by projecting on the test plate when the predetermined test screen is displayed on the stereoscopic display device and analyzing based on the detected result. . The parameter measurement system of the stereoscopic display device needs to move the test plate to a position corresponding to the position adjustment command at the time of the test, the operation is complicated, the test efficiency is lowered, and only the optical lattice parameter can be acquired. .

Chinese Patent No. 102207424 Chinese Patent Application No. 10259182 Chinese Patent Application No. 102626223

  An embodiment of the present invention aims to provide a calibration system for a stereoscopic display device in order to solve one or more technical problems caused by deficiencies and defects of the prior art.

The embodiment of the present invention is realized as follows. Provided is a calibration system for a stereoscopic display device for acquiring calibration parameters that satisfy a predetermined condition of the stereoscopic display device. The calibration system includes an image acquisition device and a control device. The image acquisition device acquires a stereoscopic image displayed on the stereoscopic display device, and transmits the stereoscopic image to the control device. The control apparatus processes the received stereoscopic image to acquire the calibration parameter. The calibration parameter is for calibrating a mounting error of the stereoscopic display device.

It is preferable that the calibration parameter is stored in the stereoscopic display device or stored in a storage medium.

Furthermore, the stereoscopic display device includes a spectral unit arranged along a first direction and a display unit arranged along a second direction. The calibration parameter includes a horizontal shift amount calibration parameter for calibrating a horizontal shift amount error due to a mismatch between arrangement periods of the spectroscopic unit and the display unit among the mounting errors.

Specifically, the control device includes a horizontal shift amount calibration module that acquires the horizontal shift amount calibration parameter that satisfies the predetermined condition based on the stereoscopic image.

Further, the calibration parameter includes an angle calibration parameter for calibrating an angle error due to an angle between the first direction and the second direction among the mounting errors.

Specifically, the control device includes an angle calibration module that acquires the angle calibration parameter that satisfies the predetermined condition based on the stereoscopic image.

Furthermore, the stereoscopic display device includes a tracking unit. The image acquisition device is attached to a mark model identifiable by the tracking unit. When the mark model is tracked by the tracking unit, the image acquisition device acquires the stereoscopic image displayed on the stereoscopic display device.

Further, the calibration parameter includes a position calibration parameter for calibrating a position error due to a mounting position of the tracking unit among the mounting errors.

Specifically, the control device includes a position calibration module that acquires the position calibration parameter that satisfies the predetermined condition based on the stereoscopic image.

Furthermore, the mark model is provided with image features that can be identified by the tracking unit.

The image feature preferably includes at least one of a human face feature, a character feature, and a color feature.

The image acquisition device preferably includes at least one camera installed at a position of a human eye.

Furthermore, the control device further includes an area detection module for detecting a display area of the stereoscopic display device.

Furthermore, the control device is attached to the stereoscopic display device or independent of the stereoscopic display device.

It is preferable that the control device is connected to the stereoscopic display device and controls display of the stereoscopic image by the stereoscopic display device.

The calibration system for a stereoscopic display device according to an embodiment of the present invention acquires a stereoscopic image displayed on the stereoscopic display device by the image acquisition device, transmits the stereoscopic image to the control device, and converts the received stereoscopic image by the control device. Processing is performed to obtain calibration parameters satisfying a predetermined condition. When the user activates the stereoscopic display device after the calibration process, the stereoscopic display device uses the calibration parameters to calibrate the mounting error, and eliminates the influence of the mounting error on the display effect of the stereoscopic display device. The calibration system for the stereoscopic display device automatically acquires the calibration parameters of the stereoscopic display device, reduces the labor intensity of the operator, and improves the calibration efficiency, as compared with the prior art.

Another object of an embodiment of the present invention is to provide a calibration method for a stereoscopic display device for obtaining a calibration parameter that satisfies a predetermined condition of the stereoscopic display device, and the calibration method is displayed on the stereoscopic display device. Step S1 for obtaining a stereoscopic image to be performed, and Step S2 for obtaining the calibration parameter for calibrating the mounting error of the stereoscopic display device based on the stereoscopic image.

Further, the mounting error includes a horizontal shift amount error. Step S2 includes a step S21 of acquiring a horizontal shift amount calibration parameter for calibrating the horizontal shift amount error based on the stereoscopic image.

Specifically, step S21 includes a step S211 for setting a horizontal shift amount detection section, a step S212 for acquiring the stereoscopic image based on the horizontal shift amount detection section, and a predetermined condition based on the stereoscopic image. Step S213 for obtaining the horizontal shift amount calibration parameter.

Further, the mounting error includes an angle error. Step S2 further includes a step S22 of obtaining an angle calibration parameter for calibrating the angle error based on the stereoscopic image.

Specifically, step S22 includes step S221 for setting an angle detection section, step S222 for acquiring the stereoscopic image based on the angle detection section, and the angle calibration parameter satisfying a predetermined condition based on the stereoscopic image. Step S223 for acquiring

Further, the stereoscopic display device is provided with a tracking unit for tracking a predetermined mark model. Prior to step S1, when the mark model is tracked by the tracking unit, the method further includes a tracking step which is step S3 which proceeds to step S1.

Furthermore, the mounting error further includes a position error due to the mounting position of the tracking unit. Step S2 further includes a step S23 of acquiring a position calibration parameter for calibrating the position error based on the stereoscopic image.

Specifically, step S23 includes step S231 for setting a position detection section, step S232 for acquiring the stereoscopic image based on the position detection section, and the position calibration parameter satisfying a predetermined condition based on the stereoscopic image. Step S233 for acquiring.

Furthermore, prior to step S1, step S4 for detecting the display area of the stereoscopic display device is further included.

Further, after step S2, step S5 for storing the calibration parameters is further included.

The method for calibrating a stereoscopic display device according to an embodiment of the present invention acquires a calibration parameter that satisfies a predetermined condition, and when the user activates the stereoscopic display device after the calibration process, the stereoscopic display device is mounted using the calibration parameter. The error is calibrated and the influence of the mounting error on the display effect of the stereoscopic display device is eliminated. The method for calibrating a stereoscopic display device according to the present embodiment has fewer operation steps than the prior art, automatically acquires the calibration parameters of the stereoscopic display device, reduces the labor intensity of the operator, and improves the calibration efficiency. .

It is a structure schematic diagram of the stereoscopic display device by a prior art. It is a structure schematic diagram of the calibration system of the three-dimensional display apparatus by Embodiment 1 of this invention. It is a structure schematic diagram of the control apparatus by Embodiment 1 of this invention. It is a structure schematic diagram of the image acquisition apparatus by Embodiment 1 of this invention. It is the interlocking | linkage schematic diagram of the tracking unit and mark model by Embodiment 2 of this invention. It is a flow schematic diagram of the calibration method of the stereoscopic display device according to the third embodiment of the present invention. It is a detailed flow schematic diagram of S2 of FIG. FIG. 8 is a detailed schematic flow diagram of S21 of FIG. It is a detailed flow schematic diagram of S22 of FIG. It is a detailed flow schematic diagram of S23 of FIG.

In order to clarify the technical problems, technical solutions and beneficial effects to be solved by the present invention, the present invention will be described in more detail below with reference to the drawings and embodiments. The specific embodiments described here are merely for interpreting the present invention and are not intended to limit the present invention.

<Embodiment 1>
As shown in FIG. 1 and FIG. 2, a calibration system (not shown) for a stereoscopic display device according to an embodiment of the present invention is for acquiring calibration parameters that satisfy predetermined conditions of the stereoscopic display device 1. The calibration parameter according to the present embodiment corresponds to the mounting error acquired by detecting the mounted stereoscopic display device 1. The calibration system for the stereoscopic display device includes a control device 2 and an image acquisition device 3. The image acquisition device 3 acquires a stereoscopic image displayed on the stereoscopic display device 1 and transmits the stereoscopic image to the control device 2. The control device 2 processes the received stereoscopic image and acquires calibration parameters for calibrating the mounting error of the stereoscopic display device 1. When started by the user, the stereoscopic display device 1 calibrates the mounting error based on the calibration parameters, and eliminates a bad influence on the display effect of the stereoscopic display device 1 due to the mounting error. The calibration system of the stereoscopic display device according to the embodiment of the present invention has a simple structure, acquires a stereoscopic image by the image acquisition device 3, processes the stereoscopic image by the control device 2, and acquires calibration parameters. The result is highly reliable. Since the calibration system of the stereoscopic display device according to the embodiment of the present invention processes the mounted stereoscopic display device 1 and acquires the calibration parameters as compared with the prior art, it affects the mounting efficiency of the stereoscopic display device 1. There is no. The stereoscopic display device 1 performs an alignment process on the display unit 121 based on the calibration parameters when displaying a stereoscopic image, thereby eliminating the influence on the display effect due to the mounting error. Acquisition of calibration parameters does not require manual operation by the operator, reduces the labor intensity of the operator, and calibrates after the stereoscopic display device 1 is completely mounted, so the reliability of the calibration result is high and the stereoscopic display effect is improved. Useful.

  The predetermined condition referred to in the present embodiment is that the stereoscopic display device 1 performs an array process on the display unit 121 based on the calibration parameters when displaying a stereoscopic image, and eliminates the influence of the mounting error on the display effect.

As shown in FIGS. 1, 2, and 4, the image acquisition device 3 includes at least one camera that captures a stereoscopic image displayed on the stereoscopic display device 1. In the present embodiment, the image acquisition device 3 includes a left camera 31a and a right camera 31b that are spaced apart. The left camera 31a and the right camera 31b have the same structure and physical performance. The separation distance between the left camera 31a and the right camera 31b may be understood as the interpupillary distance of a human eye and satisfies the stereoscopic imaging requirement. The stereoscopic display device 1 displays a changing stereoscopic image. The left camera 31a and the right camera 31b photograph the stereoscopic display device 1 at the same time. The left camera 31a captures a stereoscopic image and acquires a first image change, and the right camera 31b captures a stereoscopic image and acquires a second image change. The control device 2 processes the first image change and the second image change, respectively, and acquires a left video parameter that satisfies a predetermined condition among the first image changes and a right video parameter that satisfies a predetermined condition among the second image changes. The control device 2 acquires a calibration parameter that satisfies a predetermined condition based on the left video parameter and the right video parameter. When the user uses the stereoscopic display device 1 to display a stereoscopic image, the wearing error is calibrated based on the calibration parameters, so the displayed stereoscopic image affects display effects such as crosstalk and moire fringes. There are no defective elements, a good display effect is obtained, and the problem of affecting the stereoscopic display effect due to mounting errors is eliminated. The 3D display device calibration system according to the present embodiment can acquire the calibration parameters of the 3D display device 1 as compared with the prior art, and the 3D display device 1 calibrates the mounting error based on the calibration parameters, and the mounting error. The display effect of the stereoscopic display device 1 is improved, the operation is convenient, the detection efficiency is improved, and the reliability of the acquired calibration parameter is high.

As shown in FIG. 1, the left video parameter and the right video parameter according to the present embodiment may be a certain numerical value or a numerical interval. The stereoscopic display device 1 performs an alignment process on the display unit 121 based on the calibration parameters when displaying a stereoscopic image, obtains a favorable display effect, and has no problems such as obvious crosstalk and moire fringes. Satisfy the imaging requirements, improve the stereoscopic display effect, and eliminate the influence of the mounting error on the stereoscopic display effect.

As shown in FIGS. 1, 2, and 4, in the above-described embodiment, the left camera 31 a and the right camera 31 b are used to shoot a stereoscopic image displayed on the stereoscopic display device 1. Of course, a stereoscopic image may be taken using one camera. For example, the left camera 31a is installed at the position of the left eye of the person, a stereoscopic image displayed on the stereoscopic display device 1 is captured, the first image change is acquired, and image processing corresponding to the first image change is performed. Thus, the left video parameter that satisfies the predetermined condition can be acquired. The stereoscopic display device 1 calibrates the mounting error of the stereoscopic display device 1 based on the left video parameter, and eliminates the influence of the mounting error on the display effect of the stereoscopic display device 1. Similarly, the right camera 31b is installed at the position of the right eye of the person, a stereoscopic image displayed on the stereoscopic display device 1 is captured to acquire the second image change, and image processing corresponding to the second image change is performed. By doing so, a right video parameter that satisfies a predetermined condition is acquired. The stereoscopic display device 1 calibrates the mounting error of the stereoscopic display device 1 based on the right video parameter, and eliminates the influence of the mounting error on the display effect of the stereoscopic display device 1. By providing a plurality of image acquisition means, it is convenient to make a selection according to the actual production of the operator.

In the present embodiment, using the binarization method, the first image change and / or the second image change can be processed to obtain a left video parameter and / or a right video parameter that satisfy a predetermined condition. Of course, the image processing method according to the embodiment of the present invention is not limited to this, and the first change curve corresponding to the first image change and / or the second change corresponding to the second image change by the pixel value comparison method. A curve can also be obtained. By comparing the first change curve and / or the second change curve based on the spectral characteristics of the spectroscopic device 11, the left video parameter and / or the right video parameter are obtained, and the left video parameter and / or the right video parameter are obtained. Get calibration parameters. The present embodiment is not limited to the two types of image processing methods described above, and any image processing method known by engineers in this field is included in the protection scope of the present invention.

As shown in FIG. 1, in the present embodiment, the stereoscopic display device 1 provides a stereoscopic image including a left video and a right video having an image difference. In order to distinguish the left video from the right video in an easy-to-understand manner, the left video is set as a pure red diagram and the right video is set as a pure green diagram. The absence of the crosstalk phenomenon according to the present embodiment means that there is no green image in the left image and no red image in the right image. Of course, the stereoscopic image according to the embodiment of the present invention is not limited thereto, and any stereoscopic image having an image difference can be applied to the calibration system for the stereoscopic display device according to the embodiment of the present invention. For example, a red / blue stereoscopic diagram, a black / white stereoscopic diagram, or an image element in the left image is a rectangle, while an image element in the right image is a triangle, or an image element in the left image is the number 1. On the other hand, any three-dimensional image known by engineers in this field, such as the image element in the right image being the number 2, is included in the protection scope of the present invention. The left image and the right image have a wide origin and are not limited, and the application field of the present invention is expanded.

In the present embodiment, a stereoscopic image is stored in the stereoscopic display device 1 as shown in FIGS. By setting the display frequency of the stereoscopic image, the image acquisition device 3 acquires the stereoscopic image and transmits it to the control device 2. Of course, the control device 2 may control the display frequency of the stereoscopic display device 1 to realize the purpose of acquiring the stereoscopic image by the image acquisition device 3. A stereoscopic image can be displayed by various types, and the operation is convenient, and the use range of the calibration system of the stereoscopic display device according to the present embodiment is expanded.

As shown in FIG. 2, the image acquisition device 3 and the control device 2 may be directly connected by a lead wire or may be wirelessly connected. For example, the Bluetooth (registered trademark) communication method, NFC ( (Short-range wireless communication) method, WiFi (registered trademark) method, RFID communication method, USB interface module connection method may be used, and there are various connection methods, which can be selected according to different mounting environments. To do.

At the time of calibration parameter acquisition, the detection time can be shortened and the detection section can be set according to the mounting error. If the calibration parameter cannot be acquired, a larger value is taken for the detected stride, the detection is accelerated, and the calibration parameter that satisfies the predetermined condition is acquired as soon as possible. When the calibration parameters satisfying the predetermined condition are acquired, the detected stride is returned to a normal value or a smaller value is obtained, and many calibration parameters satisfying the predetermined condition are acquired. If calibration parameters are not acquired again, the detection is stopped, the detection time is shortened, and the detection efficiency of the stereoscopic display device 1 is improved. Alternatively, the binarization process is performed for each detection interval, and the detection is continued when the calibration parameter is acquired within the detection interval. However, when the calibration parameter cannot be acquired within the detection interval, the detection interval is skipped.

In the present embodiment, the stereoscopic display device 1 may be a mobile terminal or an electronic device with a display function such as a personal computer. The control device 2 is a facility with processing / communication functions such as a personal computer or a mobile terminal, and is not listed here.

In the present embodiment, the control device 2 is a personal computer, the stereoscopic display device 1 is a mobile phone, the stereoscopic display device 1 is connected to the control device 2 via a data line, and the image acquisition device 3 is connected via a data line. It is preferable to connect to the control device 2, and the processing efficiency of the personal computer is higher, the processing time is shortened, and the processing efficiency is improved.

As a further improvement of the above embodiment, as shown in FIGS. 1 and 2, the calibration parameter according to the present embodiment is stored in the stereoscopic display device 1 or stored in a storage medium. The control device 2 may acquire calibration parameters that satisfy a predetermined condition based on the stereoscopic image and store the calibration parameters in the stereoscopic display device 1. When the user uses the stereoscopic display device 1, the stereoscopic display device 1 calibrates the mounting error based on the calibration parameter, and eliminates the influence of the mounting error on the display effect. Of course, the control device 2 may store the calibration parameters in a storage medium. When the user uses the stereoscopic display device 1, calibration parameters are acquired from the storage medium, and the operation is convenient. The storage medium according to the present embodiment is a platform such as a client of a cloud service or an APP store. Of course, the user can adjust the display effect according to individual preferences and individual differences.

As a further improvement of the above embodiment, as shown in FIGS. 1 and 2, the control device 2 according to this embodiment is attached to the stereoscopic display device 1, and the control device 2 functions as a processing device of the stereoscopic display device 1. Calibration parameters are stored in the control device 2, and when used, the calibration parameters are extracted from the control device 2 to calibrate the mounting error. Of course, the control device 2 may be independent from the stereoscopic display device 1 or may acquire calibration parameters that satisfy a predetermined condition. The control apparatus 2 can change an attachment position according to a user's request, and attachment is more flexible.

As a further improvement of the above embodiment, as shown in FIGS. 1 and 2, the control device 2 is connected to the stereoscopic display device 1 and controls the stereoscopic image display by the stereoscopic display device 1. The control device 2 and the stereoscopic display device 1 may be directly connected by a conductive wire or may be wirelessly connected, for example, Bluetooth (registered trademark) communication method, NFC (near field communication) method, WiFi. (Registered Trademark) method, RFID communication method, USB interface module connection method, and various connection methods, which are selected and used according to different mounting environments. The control device 2 controls stereoscopic image display by the stereoscopic display device 1, controls stereoscopic image acquisition by the image acquisition device 3, realizes automation of calibration parameter acquisition, is more convenient to operate, and burdens the operator's work The operation is performed automatically and the accuracy of the calibration parameters is high.

As a further improvement of the above embodiment, as shown in FIG. 1 and FIG. 2, the stereoscopic display device 1 includes a spectroscopic device 11 including spectroscopic units 111 arranged along the first direction, and an arrangement along the second direction. The display unit 12 including the display unit 121 to be displayed, and the display unit 121 according to the present embodiment indicates the minimum display unit for stereoscopic display. The spectroscopic device 11 is placed on the display panel 12 according to design requirements. After the mounting of the stereoscopic display device 1 is completed, the mounting error includes a horizontal shift amount error due to a mismatch in the arrangement period of the spectroscopic unit 111 and the display unit 121. If the horizontal shift amount error is not calibrated, a crosstalk problem occurs in the image, which affects the display effect of the stereoscopic display device 1. The calibration parameter includes a horizontal shift amount calibration parameter for calibrating the horizontal shift amount error. The image acquisition device 3 acquires a stereoscopic image displayed on the stereoscopic display device 1, and the control device 2 acquires a horizontal shift amount calibration parameter that satisfies a predetermined condition based on the stereoscopic image. When the user uses the stereoscopic display device 1, the stereoscopic display device 1 calibrates the horizontal shift amount error based on the horizontal shift amount calibration parameter, eliminates the influence of the horizontal shift amount error on the stereoscopic display, and achieves the stereoscopic display effect. Improve.

Specifically, as illustrated in FIGS. 1 to 3, the control device 2 includes a horizontal shift amount calibration module 21 that acquires a horizontal shift amount calibration parameter that satisfies a predetermined condition based on a stereoscopic image. The horizontal shift amount calibration module 21 sets a horizontal shift amount detection section and a horizontal shift amount detection step based on the arrangement period of the display units 121. Horizontal shift amount calibration module 21 controls to perform the corresponding image processing to the display unit 121 according to the stereoscopic display apparatus 1 based on the initial horizontal shift amount calibration parameters L _0. Specifically, an initial horizontal shift calibration parameters and L _0. Horizontal shift amount calibration module 21, based on the initial horizontal shift amount calibration parameters L _0, transmits the horizontal shift amount control signal. The stereoscopic display device 1 performs an alignment process on the display unit 121 based on the horizontal shift amount control signal, and displays a stereoscopic image after the alignment process. The image acquisition device 3 acquires the stereoscopic image and stores it in the horizontal shift amount calibration module 21. When the i-th horizontal shift amount calibration parameter is set to L _i and the horizontal shift amount detection step length is set to b1, L _i = L ₀ + (i−1) b ₁ (i ≧ 1). Before performing the image processing based on the i-times horizontal shift calibration parameters L _i, the horizontal shift amount calibration module 21, the i-times horizontal shift calibration parameters L _i determines whether the horizontal shift amount detection section . When the i-th horizontal shift amount calibration parameter _Li is not in the horizontal shift amount detection section, the above operation is stopped. If the i-th times horizontal shift calibration parameters Li in the horizontal shift amount detecting section, a horizontal shift amount calibration module 21, based on the i-times horizontal shift calibration parameters L _i, transmits the horizontal shift amount control signal. The stereoscopic display device 1 performs an alignment process on the display unit 121 based on the horizontal shift amount control signal, and displays a stereoscopic image after the alignment process. The image acquisition device 3 acquires the stereoscopic image and stores it in the horizontal shift amount calibration module 21. When the i-th horizontal shift amount calibration parameter _Li falls outside the horizontal shift amount detection section, the above operation is stopped. The horizontal shift amount calibration module 21 performs image processing on the stereoscopic image and obtains a horizontal shift amount calibration parameter that satisfies a predetermined condition. When a stereoscopic image is displayed by the stereoscopic display device 1, an arrangement process is performed on the display unit 121 based on the horizontal shift amount calibration parameter to eliminate the influence of the horizontal shift amount error on the display effect. The acquisition of the horizontal shift amount calibration parameter does not require manual operation by the operator, reduces the labor intensity of the operator, and calibrates after the stereoscopic display device 1 is installed, so the reliability of the calibration result is high and the stereoscopic display is performed. Helps to improve the effect.

As a further improvement of the above embodiment, as shown in FIGS. 1 and 2, the spectroscopic device 11 is tilted to the display panel 12 in order to avoid periodic interference of the arrangement of the spectroscopic unit 111 and the display unit 121. The spectroscopic units 111 are arranged along the first direction, the display units 121 are arranged along the second direction, and the mounting error includes an angle error due to an angle between the first direction and the second direction. Further included. If the angle error is not calibrated, image crosstalk, particle feeling, etc. will occur, and the display effect of the stereoscopic display device 1 will be affected. The calibration parameter includes an angle calibration parameter for calibrating the angle error. The image acquisition device 3 acquires a stereoscopic image displayed on the stereoscopic display device 1. The control device 2 acquires an angle calibration parameter that satisfies a predetermined condition based on the stereoscopic image. When the user uses the stereoscopic display device 1, the stereoscopic display device 1 calibrates the angle error based on the angle calibration parameter, eliminates the influence of the angle error on the stereoscopic display, and improves the stereoscopic display effect.

Specifically, as illustrated in FIGS. 1 to 3, the control device 2 includes an angle calibration module 22 that acquires an angle calibration parameter that satisfies a predetermined condition based on a stereoscopic image. The angle calibration module 22 sets an angle detection section and an angle detection step based on design requirements and mounting accuracy. Specifically, to set the initial angle calibration parameters and A _0. Angle calibration module 22, based on the initial angular calibration parameters A _0, transmits the angle control signal. The stereoscopic display device 1 performs an alignment process on the display unit 121 based on the angle control signal, and displays a stereoscopic image after the alignment process. The image acquisition device 3 acquires the stereoscopic image and stores it in the angle calibration module 22. When the i-th angle calibration parameter is set to A _i and the angle detection step length is set to b2, A _i = A ₀ + (i−1) b ₂ (i ≧ 1). Before performing image processing based on the i-th angle calibration parameter A _i , the angle calibration module 22 determines whether the i-th angle calibration parameter A _i is in the angle detection interval. When the i-th angle calibration parameter A _i is not in the angle detection section, the above operation is stopped. When the i-th angle calibration parameter A _i is in the angle detection section, the angle calibration module 22 transmits an angle control signal based on the i-th angle calibration parameter A _i . The stereoscopic display device 1 performs an alignment process on the display unit 121 based on the angle control signal, and displays a stereoscopic image after the alignment process. The image acquisition device 3 acquires the stereoscopic image and stores it in the angle calibration module 22. Outside from the i times the angle calibration parameters A _i is the angle detection section stops the operation. When a stereoscopic image is displayed by the stereoscopic display device 1, an arrangement process is performed on the display unit 121 based on the angle calibration parameter to eliminate the influence of the angle error on the display effect. The acquisition of the angle calibration parameter does not require manual operation by the operator, reduces the labor intensity of the operator, and calibrates after the stereoscopic display device 1 is completely mounted. Therefore, the calibration result is highly reliable and the stereoscopic display effect is improved. Helps improve.

As a further improvement of the above embodiment, as shown in FIGS. 1 and 3, the control device 2 further includes a region detection module 24 for detecting a display region in the stereoscopic display device 1. Since the image acquired by the image acquisition device 3 includes not only a stereoscopic image displayed on the stereoscopic display device 1 but also an external environment other than the display area, the accuracy of the angle calibration parameter and the horizontal shift amount calibration parameter by the external environment is improved. In order to avoid the influence of the above, it is necessary to detect a display area in the stereoscopic display device 1 and perform an image related process in the display area before image processing. The region detection module 24 extracts image channel values in the display region, detects edge points and boundary curves of the display region using edge detection, and displays the display region based on the boundary points, boundary curve, and image area. Detect automatically. Further reduce the influence of the external environment on the detection results, and ensure the reliability of the calibration results.

<Embodiment 2>
The stereoscopic display device calibration system according to the present embodiment has substantially the same structure as that of the stereoscopic display device calibration system according to the first embodiment. As shown in FIGS. 1, 2, and 5, the tracking function is different. The attached tracking unit 13 is provided in the stereoscopic display device 1, and the image acquisition device 3 is attached to the mark model 4 that can be identified by the tracking unit 13. The tracking unit 13 according to the present embodiment is a device capable of tracking the mark model 4 such as an infrared detection device or a tracking camera. When the tracking function of the tracking unit 13 is activated and the mark model 4 is tracked by the tracking unit 13, the stereoscopic display device 1 feeds back a tracking signal to the control device 2. The control device 2 controls acquisition of a stereoscopic image displayed on the stereoscopic display device 1 by the image acquisition device 3 based on the tracking signal. The mark model 4 is used instead of the user, and the stereoscopic display device 1 adjusts the stereoscopic display content based on the position of the mark model 4. Therefore, during actual use, the viewer can see the stereoscopic image seamlessly, and the content of the observation changes correspondingly according to the user's orientation and movement tendency, and the interaction between the user and the display content is performed. Realize and improve the reality of stereoscopic display. When the mark model 4 is tracked by the tracking unit 13, the stereoscopic display device 1 transmits a control signal. The control device 2 controls acquisition of a stereoscopic image displayed on the stereoscopic display device 1 by the image acquisition device 3 based on the control signal, and stores the stereoscopic image in the control device 2. The control device 2 acquires a calibration parameter that satisfies a predetermined condition based on the stereoscopic image. When the user uses the stereoscopic display device 1, the stereoscopic display device 1 performs an alignment process on the display unit 121 based on the calibration parameters, and displays a stereoscopic image after the alignment process. The image acquisition device 3 acquires the stereoscopic image and stores it in the control device 2. The control device 2 performs image processing of the stereoscopic image and acquires calibration parameters that satisfy a predetermined condition. The stereoscopic display device 1 calibrates the mounting error based on the calibration parameter, and eliminates the influence of the mounting error on the stereoscopic display effect.

Further, the mark model 4 is provided with an image feature that can be identified by the tracking unit 13. When the image feature is tracked by the tracking unit 13, the stereoscopic display device 1 feeds back a tracking signal to the control device 2. The control device 2 controls acquisition of a stereoscopic image displayed on the stereoscopic display device 1 by the image acquisition device 3 based on the tracking signal. The mark model 4 is used instead of the user, and the stereoscopic display device 1 adjusts the stereoscopic display content based on the position of the mark model 4. Therefore, in actual use, the observer can see the stereoscopic effect without interruption, and the content of observation changes correspondingly according to the user's direction and movement tendency, and the interaction between the user and the display content is Realize and improve the reality of stereoscopic display. The mark model 4 according to the present embodiment is a feature that can be identified by the tracking unit 13 on a planar paperboard or a three-dimensional head image. For example, there are human face features, character features, image features, etc., but they are not listed here.

As a further improvement of the above embodiment, the image features include one or more of human facial features, character features, and color features. When using the facial features of a person instead of the user to simulate the user's viewing environment, the acquired calibration parameters are closer to the truth. Of course, the image feature may be another feature. Any feature identified by the tracking unit 13 falls within the protection scope of the present invention.

As shown in FIGS. 1 and 4, the image acquisition device 3 includes at least one camera. The camera is installed at the position of the human eye and captures a stereoscopic image displayed on the stereoscopic display device 1. In the present embodiment, the image acquisition device 3 includes a left camera 31a and a right camera 31b that are spaced apart. The left camera 31a and the right camera 31b have the same structure and physical performance. The separation distance between the left camera 31a and the right camera 31b may be understood as the interpupillary distance of a human eye and satisfies the stereoscopic imaging requirement. The stereoscopic display device 1 displays a changing stereoscopic image. The left camera 31a and the right camera 31b photograph the stereoscopic display device 1 at the same time. The left camera 31a captures a stereoscopic image and acquires a first image change, and the right camera 31b captures a stereoscopic image and acquires a second image change. The control device 2 processes the first image change and the second image change, respectively, and acquires a left video parameter that satisfies a predetermined condition among the first image changes and a right video parameter that satisfies a predetermined condition among the second image changes. The control device 2 acquires a calibration parameter that satisfies a predetermined condition based on the left video parameter and the right video parameter. When the user uses the stereoscopic display device 1 to display a stereoscopic image, the wearing error is calibrated based on the calibration parameters, so the displayed stereoscopic image affects display effects such as crosstalk and moire fringes. There are no defective elements, a good display effect is obtained, and the problem of affecting the stereoscopic display effect due to mounting errors is eliminated. The 3D display device calibration system according to the present embodiment can acquire the calibration parameters of the 3D display device 1 as compared with the prior art, and the 3D display device 1 calibrates the mounting error based on the calibration parameters, and the mounting error. The display effect of the stereoscopic display device 1 is improved, the operation is convenient, the detection efficiency is improved, and the reliability of the acquired calibration parameter is high.

As shown in FIG.1 and FIG.4, in the said embodiment, the stereoscopic image displayed on the stereoscopic display apparatus 1 is each image | photographed using the left camera 31a and the right camera 31b. Of course, a stereoscopic image may be taken using one camera. For example, the left camera 31a is installed at the position of the left eye of the person, a stereoscopic image displayed on the stereoscopic display device 1 is captured, the first image change is acquired, and image processing corresponding to the first image change is performed. Thus, the left video parameter that satisfies the predetermined condition can be acquired. The stereoscopic display device 1 calibrates the mounting error of the stereoscopic display device 1 based on the left video parameter, and eliminates the influence of the mounting error on the display effect of the stereoscopic display device 1. Similarly, the right camera 31b is installed at the position of the right eye of the person, a stereoscopic image displayed on the stereoscopic display device 1 is captured to acquire the second image change, and image processing corresponding to the second image change is performed. By doing so, a right video parameter that satisfies a predetermined condition is acquired. The stereoscopic display device 1 calibrates the mounting error of the stereoscopic display device 1 based on the right video parameter, and eliminates the influence of the mounting error on the display effect of the stereoscopic display device 1. By providing a plurality of image acquisition means, it is convenient to make a selection according to the actual production of the operator.

As a further improvement of the above embodiment, as shown in FIGS. 1, 2, and 5, the mounting error further includes a position error caused by the attachment of the tracking unit 13 in the stereoscopic display device 1. If the position error is not calibrated, the display effect of the stereoscopic display device 1 is affected. The calibration parameter includes a position calibration parameter for calibrating the position error. The image acquisition device 3 acquires a stereoscopic image displayed on the stereoscopic display device 1, and the control device 2 acquires position calibration parameters that satisfy a predetermined condition based on the stereoscopic image. When the user uses the stereoscopic display device 1, the stereoscopic display device 1 calibrates the position error based on the position calibration parameter, eliminates the influence of the position error on the stereoscopic display, and improves the stereoscopic display effect.

Specifically, as illustrated in FIGS. 1, 3, and 5, the control device 2 further includes a position calibration module 23 that acquires a position calibration parameter that satisfies a predetermined condition based on a stereoscopic image. The position calibration module 23 specifies the position detection section and the position detection step based on the mounting position and mounting accuracy of the tracking unit 13 in the design requirements. Specifically, to set the initial position adjustment parameter and Z _0. Position adjustment module 23, based on the initial position adjustment parameter Z _0, transmits a position control signal. The stereoscopic display device 1 performs an alignment process on the display unit 121 based on the position control signal, and displays a stereoscopic image after the alignment process. The image acquisition device 3 acquires the stereoscopic image and stores it in the position calibration module 23. If the i-th position calibration parameter is set to Z _i and the position detection stride is set to b ₃ , Z _i = Z ₀ + (i−1) b ₃ (i ≧ 1). Before performing image processing based on the i-th position calibration parameter Z _i , the position calibration module 23 determines whether the i-th position calibration parameter Z _i is in the position detection section. When the i-th position calibration parameter Z _i is not in the position detection section, the above operation is stopped. When the i-th position calibration parameter Z _i is in the position detection section, the position calibration module 23 transmits a position control signal based on the i-th position calibration parameter Z _i . The stereoscopic display device 1 performs an alignment process on the display unit 121 based on the position control signal, and displays a stereoscopic image after the alignment process. The image acquisition device 3 acquires the stereoscopic image and stores it in the position calibration module 23. When the i-th position calibration parameter Z _i is out of the position detection section, the above operation is stopped. When a stereoscopic image is displayed by the stereoscopic display device 1, an arrangement process is performed on the display unit 121 based on the position calibration parameter to eliminate the influence of the position error on the display effect. The acquisition of the position calibration parameter does not require manual work by the operator, reduces the labor intensity of the operator, and calibrates after the stereoscopic display device 1 is completely mounted. Therefore, the calibration result is highly reliable and the stereoscopic display effect is improved. Helps improve.

<Embodiment 3>
As shown in FIGS. 1 and 6, the method for calibrating a stereoscopic display device according to the present embodiment is a method for acquiring calibration parameters that satisfy a predetermined condition of the stereoscopic display device 1. The calibration method includes a step S1 for acquiring a stereoscopic image displayed on the stereoscopic display device 1, and a step S2 for acquiring a calibration parameter for calibrating the mounting error of the stereoscopic display device 1 based on the stereoscopic image. .

The calibration parameter according to the present embodiment corresponds to the mounting error acquired by detecting the mounted stereoscopic display device 1. A stereoscopic image displayed on the stereoscopic display device 1 is acquired, and calibration parameters that satisfy a predetermined condition are acquired based on the stereoscopic image. The calibration parameter is for calibrating the mounting error of the stereoscopic display device 1. When started by the user, the stereoscopic display device 1 calibrates the mounting error based on the calibration parameters, and eliminates a bad influence on the display effect of the stereoscopic display device 1 due to the mounting error. The method for calibrating a stereoscopic display device according to an embodiment of the present invention is easy to operate, easy to implement, and highly reliable. The method for calibrating a stereoscopic display device according to an embodiment of the present invention affects the mounting efficiency of the stereoscopic display device 1 because the calibration parameter is obtained by operating the mounted stereoscopic display device 1 as compared with the prior art. There is no. The stereoscopic display device 1 calibrates the mounting error based on the calibration parameter, improves the reliability of the calibration result, and acquires a good display effect. In addition, it is not necessary to change the place where the stereoscopic display device 1 is placed when acquiring the calibration parameters, so that the difficulty of the work is reduced and the labor intensity of the operator is reduced.

  The stereoscopic display device 1 displays a stereoscopic image including a left video and a right video having an image difference, and acquires a first image change corresponding to the left video and a second image change corresponding to the right video. Each of the first image change and the second image change is processed to obtain a left video parameter that satisfies a predetermined condition among the first image changes and a right video parameter that satisfies a predetermined condition among the second image changes. Calibration parameters satisfying a predetermined condition are acquired from the left video parameter and the right video parameter. When the user uses the stereoscopic display device 1 to display a stereoscopic image, the mounting error is calibrated based on the calibration parameters, and the problem that affects the stereoscopic display effect due to the mounting error is eliminated, and the displayed stereoscopic image There are no defective elements that affect the display effect such as crosstalk and moire fringes, and a good display effect is obtained. The method for calibrating a stereoscopic display device according to the present embodiment acquires the calibration parameters of the stereoscopic display device 1 as compared with the prior art, the stereoscopic display device 1 calibrates the mounting error based on the calibration parameters, and the display effect due to the mounting error. The display effect of the stereoscopic display device 1 is improved, the operation is convenient, the detection efficiency is improved, and the reliability of the acquired calibration parameter is high.

The left video parameter and the right video parameter according to the present embodiment may be a certain numerical value or a numerical interval. The stereoscopic display device 1 performs an alignment process on the display unit 121 based on the calibration parameter when displaying a stereoscopic image, acquires a good display effect, and has no problems such as obvious crosstalk and moire fringes, The 3D imaging requirement is satisfied, the stereoscopic display effect is improved, and the influence of the mounting error on the stereoscopic display effect is eliminated.

In the above embodiment, the first image change corresponding to the left video and the second image change corresponding to the right video are respectively acquired. Of course, only one of the first image change or the second image change may be acquired. For example, by acquiring only the first image change and performing image processing corresponding to the first image change, the left video parameter that satisfies the predetermined condition can be acquired. The stereoscopic display device 1 calibrates the mounting error of the stereoscopic display device 1 based on the left video parameter, and eliminates the influence of the mounting error on the display effect of the stereoscopic display device. Similarly, by acquiring only the second image change and performing image processing corresponding to the second image change, a right video parameter that satisfies a predetermined condition is acquired. The stereoscopic display device 1 calibrates the mounting error of the stereoscopic display device 1 based on the right video parameter, and eliminates the influence of the mounting error on the display effect of the stereoscopic display device 1. By providing a plurality of image acquisition means, it is convenient to make a selection according to the actual production of the operator.

In the present embodiment, using the binarization method, the first image change and / or the second image change can be processed to obtain a left video parameter and / or a right video parameter that satisfy a predetermined condition. Of course, the image processing method according to the embodiment of the present invention is not limited to this, and the first change curve corresponding to the first image change and / or the second change corresponding to the second image change by the pixel value comparison method. A curve can also be obtained. Based on the spectral characteristics of the spectroscopic device 11, the first change curve and the second change curve are compared to obtain the left image parameter and the right image parameter, and the calibration parameter is obtained from the left image parameter and the right image parameter. The present embodiment is not limited to the two types of image processing methods described above, and any image processing method known by engineers in this field is included in the protection scope of the present invention.

In the present embodiment, the stereoscopic display device 1 provides a stereoscopic image including a left video and a right video having an image difference. In order to distinguish the left video from the right video in an easy-to-understand manner, the left video is set as a pure red diagram and the right video is set as a pure green diagram. In the present embodiment, the absence of the crawl phenomenon means that there is no green image in the left image and no red image in the right image. Of course, the stereoscopic image according to the embodiment of the present invention is not limited to this, and any stereoscopic image having an image difference can be applied to the calibration method of the stereoscopic display device according to the embodiment of the present invention. For example, a red / blue stereoscopic diagram, a black / white stereoscopic diagram, or an image element in the left image is a rectangle, while an image element in the right image is a triangle, or an image element in the left image is the number 1. On the other hand, any three-dimensional image known by engineers in this field, such as the image element in the right image being the number 2, is included in the protection scope of the present invention. If the left image and the right image are different, the application field of the present invention is expanded without limitation.

In the present embodiment, a stereoscopic image is stored in the stereoscopic display device 1. A stereoscopic image is acquired by setting the display frequency of the stereoscopic image. Of course, the purpose of acquiring a stereoscopic image may be realized by controlling the display frequency of the stereoscopic display device 1. A stereoscopic image can be displayed by various types of forms, the operation is convenient, and the use range of the calibration method of the stereoscopic display device according to the present embodiment is expanded.

As shown in FIGS. 1 and 7, the mounting error includes a horizontal shift amount error. Step S2 includes step S21 of acquiring a horizontal shift amount calibration parameter for calibrating the horizontal shift amount error based on the stereoscopic image.

The stereoscopic display device 1 includes a spectral device 11 including spectral units 111 arranged along a first direction, and a display panel 12 including a display unit 121 arranged along a second direction. The display unit 121 according to the present embodiment. Indicates the minimum display unit for stereoscopic display. The spectroscopic device 11 is placed on the display panel 12 according to design requirements. After the mounting of the stereoscopic display device 1 is completed, the mounting error includes a horizontal shift amount error due to a mismatch in the arrangement period of the spectroscopic unit 111 and the display unit 121. If the horizontal shift amount error is not calibrated, a crosstalk problem occurs in the image, which affects the display effect of the stereoscopic display device 1. The calibration parameter includes a horizontal shift amount calibration parameter for calibrating the horizontal shift amount error. A stereoscopic image displayed on the stereoscopic display device 1 is acquired, and a horizontal shift amount calibration parameter that satisfies a predetermined condition is acquired based on the stereoscopic image. When the user uses the stereoscopic display device 1, the stereoscopic display device 1 calibrates the horizontal shift amount error based on the horizontal shift amount calibration parameter, eliminates the influence of the horizontal shift amount error on the stereoscopic display, and achieves the stereoscopic display effect. Improve.

As shown in FIG. 7 and FIG. 8, step S21 specifically includes step S211 for setting a horizontal shift amount detection section, step S212 for acquiring a stereoscopic image based on the horizontal shift amount detection section, And step S213 for obtaining a horizontal shift amount calibration parameter that satisfies a predetermined condition.

Based on the arrangement period of the display units 121, a horizontal shift amount detection section and a horizontal shift amount detection step are set. Based on the initial horizontal shift amount calibration parameter L ₀ , it is controlled to perform corresponding image processing on the display unit 121 by the stereoscopic display device 1. Specifically, an initial horizontal shift calibration parameters and L _0. Based on the initial horizontal shift amount calibration parameters L _0, it transmits the horizontal shift amount control signal. The stereoscopic display device 1 performs an array process on the display unit 121 based on the horizontal shift amount control signal, displays a stereoscopic image after the array process, and acquires and stores the stereoscopic image. When the i-th horizontal shift amount calibration parameter is set to L _i and the horizontal shift amount detection step length is set to b ₁ , L _i = L ₀ + (i−1) b ₁ (i ≧ 1). Before performing the image processing based on the i-times horizontal shift calibration parameters L _i, the i-times horizontal shift calibration parameters L _i determines whether the horizontal shift amount detection section. When the i-th horizontal shift amount calibration parameter _Li is not in the horizontal shift amount detection section, the above operation is stopped. If the i times the horizontal shift amount calibration parameters L _i is the horizontal shift amount detection section, based on the i-times horizontal shift calibration parameters L _i, transmits the horizontal shift amount control signal. The stereoscopic display device 1 performs an array process on the display unit 121 based on the horizontal shift amount control signal, displays a stereoscopic image after the array process, and acquires the stereoscopic image. When the i-th horizontal shift amount calibration parameter _Li falls outside the horizontal shift amount detection section, the above operation is stopped. Image processing is performed on the stored stereoscopic image, a horizontal shift amount calibration parameter that satisfies a predetermined condition is acquired, and the horizontal shift amount calibration parameter is stored. When a stereoscopic image is displayed by the stereoscopic display device 1, an arrangement process is performed on the display unit 121 based on the horizontal shift amount calibration parameter to eliminate the influence of the horizontal shift amount error on the display effect. The acquisition of the horizontal shift amount calibration parameter does not require manual operation by the operator, reduces the labor intensity of the operator, and calibrates after the stereoscopic display device 1 is installed, so the reliability of the calibration result is high and the stereoscopic display is performed. Helps to improve the effect.

A horizontal shift amount calibration parameter may be acquired based on the stereoscopic image, and the horizontal shift amount calibration parameter may be stored in the stereoscopic display device 1. When the user uses the stereoscopic display device 1, the stereoscopic display device 1 calibrates the mounting error based on the horizontal shift amount calibration parameter, and eliminates the influence of the mounting error on the display effect. Of course, the horizontal shift amount calibration parameter may be stored in the storage medium. When the user uses the stereoscopic display device 1, the horizontal shift amount calibration parameter is acquired from the storage medium, and the operation is convenient. The storage medium according to the present embodiment is a platform such as a client of a cloud service or an APP store.

As shown in FIGS. 1 and 7, the mounting error includes an angle error. Step S2 further includes step S22 of obtaining an angle calibration parameter for calibrating the angle error based on the stereoscopic image.

In order to prevent the arrangement of the spectroscopic unit 111 and the display unit 121 from periodically interfering, the spectroscopic device 11 is placed on the display panel 12 so that the spectroscopic unit 111 is arranged along the first direction. 121 are arranged along the second direction, and the mounting error further includes an angle error due to an angle between the first direction and the second direction. If the angle error is not calibrated, image crosstalk, particle feeling, etc. will occur, and the display effect of the stereoscopic display device 1 will be affected. The calibration parameter includes an angle calibration parameter for calibrating the angle error. A stereoscopic image displayed on the stereoscopic display device 1 is acquired, and an angle calibration parameter that satisfies a predetermined condition is acquired based on the stereoscopic image. When the user uses the stereoscopic display device 1, the stereoscopic display device 1 calibrates the angle error based on the angle calibration parameter, eliminates the influence of the angle error on the stereoscopic display, and improves the stereoscopic display effect.

As shown in FIGS. 7 and 9, specifically, step S22 is based on step S221 for setting an angle detection section, step S222 for acquiring the stereoscopic image based on the angle detection section, and the stereoscopic image. And step S223 for obtaining the angle calibration parameter satisfying a predetermined condition.

Based on the inclination angle and angle error of the spectroscopic device 11 in the design requirements, the angle detection section and the angle detection step are specified. Specifically, to set the initial angle calibration parameters and A _0. Based on the initial angle calibration parameters A _0, it transmits the angle control signal. The stereoscopic display device 1 performs an array process on the display unit 121 based on the angle control signal, displays a stereoscopic image after the array process, and acquires and stores the stereoscopic image. When the i-th angle calibration parameter is set to A _i and the angle detection step length is set to b ₂ , A _i = A ₀ + (i−1) b ₂ (i ≧ 1). Before performing the image processing based on the i-times angular calibration parameters A _i, the i-times angular calibration parameters A _i determines whether the angle detection section. When the i-th angle calibration parameter A _i is not in the angle detection section, the above operation is stopped. When the i-th angle calibration parameter A _i is in the angle detection section, an angle control signal is transmitted based on the i-th angle calibration parameter A _i . The stereoscopic display device 1 performs an alignment process on the display unit 121 based on the angle control signal, displays a stereoscopic image after the alignment process, and acquires the stereoscopic image. Outside from the i times the angle calibration parameters A _i is the angle detection section stops the operation. Image processing is performed on the stored stereoscopic image, an angle calibration parameter that satisfies a predetermined condition is acquired, and the angle calibration parameter is stored. When a stereoscopic image is displayed by the stereoscopic display device 1, an arrangement process is performed on the display unit 121 based on the angle calibration parameter to eliminate the influence of the angle error on the display effect. The acquisition of the angle calibration parameter does not require manual operation by the operator, reduces the labor intensity of the operator, and calibrates after the stereoscopic display device 1 is completely mounted. Therefore, the calibration result is highly reliable and the stereoscopic display effect is improved. Helps improve.

Calibration parameters may be acquired based on a stereoscopic image, and angle calibration parameters may be stored in the stereoscopic display device 1. When the stereoscopic display device 1 is used by the user, the stereoscopic display device 1 calibrates the mounting error based on the angle calibration parameter, and eliminates the influence of the mounting error on the display effect. Of course, the angle calibration parameter may be stored in the storage medium. When the stereoscopic display device 1 is used by the user, the angle calibration parameter is obtained from the storage medium, and the operation is convenient. The storage medium according to the present embodiment is a platform such as a client of a cloud service or an APP store.

As a further improvement of the above embodiment, as shown in FIGS. 1 and 6, prior to step S <b> 1, step S <b> 4 for detecting the display area of the stereoscopic display device 1 is further included.

Since the acquired image includes not only the stereoscopic image displayed on the stereoscopic display device 1 but also the external environment other than the display area, in order to avoid the influence of the external environment on the accuracy of the angle calibration parameter and the horizontal shift amount calibration parameter. Before the image processing, it is necessary to detect the display area and perform an image related process in the display area. Image channel values in the display area are extracted, edge detection is used to detect boundary points and boundary curves of the display area, and the display area is automatically detected based on the boundary points, boundary curves and image area. . Further reduce the influence of the external environment on the detection results, and ensure the reliability of the calibration results.

<Embodiment 4>
The 3D display device calibration method according to the present embodiment has substantially the same processing steps as the 3D display device calibration method according to Embodiment 3, and as a further improvement of the above embodiment, FIGS. As shown in FIG. 6 and FIG. 6, the tracking unit 13 for tracking the predetermined mark model 4 is provided in the stereoscopic display device 1, and when the mark model 4 is tracked by the tracking unit 13 prior to step S1, It further includes a tracking step which is step S3 which proceeds to step S1.

After the tracking function of the tracking unit 13 is activated and the mark model 4 is tracked, a stereoscopic image displayed on the stereoscopic display device 1 is acquired. The mark model 4 is used instead of the user, and the stereoscopic display device 1 adjusts the stereoscopic display content based on the position of the mark model 4. Therefore, in actual use, the observer can see the stereoscopic effect without interruption, and the content of observation changes correspondingly according to the user's direction and movement tendency, and the interaction between the user and the display content is Realize and improve the reality of stereoscopic display.

The mark model 4 according to the present embodiment is provided with an image feature that can be identified by the tracking unit 13. When the image feature is tracked by the tracking unit 13, the stereoscopic display device 1 feeds back a tracking signal to the control device 2. The control device 2 controls acquisition of a stereoscopic image displayed on the stereoscopic display device 1 by the image acquisition device 3 based on the tracking signal. The mark model 4 is used instead of the user, and the stereoscopic display device 1 adjusts the stereoscopic display content based on the position of the mark model 4. Therefore, during actual use, the observer can see the stereoscopic effect without interruption, and the observed contents change correspondingly according to the user's direction and movement tendency, and the interaction between the user and the displayed contents can be performed. Realize and improve the reality of stereoscopic display. The mark model 4 according to the present embodiment is a feature that can be identified by the tracking unit 13 on a planar paperboard or a three-dimensional head image. For example, human face features, character features, image features, etc., are not listed here.

Specifically, as illustrated in FIGS. 5 to 7, the mounting error further includes a position error due to the mounting position of the tracking unit 13. Step S2 further includes step S23 of acquiring a position calibration parameter for calibrating the position error based on the stereoscopic image.

The mounting error includes a position error due to the mounting position of the tracking unit 13. If the position error is not calibrated, a crosstalk problem occurs in the image, which affects the display effect of the stereoscopic display device 1. The calibration parameter includes a position calibration parameter for calibrating the position error. A stereoscopic image displayed on the stereoscopic display device 1 is acquired, and position calibration parameters that satisfy a predetermined condition are acquired based on the stereoscopic image. When the user uses the stereoscopic display device 1, the stereoscopic display device 1 calibrates the position error based on the position calibration parameter, eliminates the influence of the position error on the stereoscopic display, and improves the stereoscopic display effect.

As shown in FIG. 1, FIG. 5, FIG. 7 and FIG. 10, step S23 specifically includes step S231 for setting a position detection section, step S232 for acquiring a stereoscopic image based on the position detection section, And step S233 for obtaining a position calibration parameter that satisfies a predetermined condition based on the image.

A position detection section is set based on the mounting position of the tracking unit 13. Based on the initial position calibration parameter Z ₀ , it is controlled to perform corresponding image processing on the display unit 121 by the stereoscopic display device 1. Specifically, to set the initial position adjustment parameter and Z _0. Based on the initial position adjustment parameter Z _0, it transmits a position control signal. The stereoscopic display device 1 performs an array process on the display unit 121 based on the position control signal, displays a stereoscopic image after the array process, and acquires and stores the stereoscopic image. When the i-th position calibration parameter is set to Z _i and the position detection step is set to b ₃ , Z _i = Z ₀ + (i−1) b ₃ (i ≧ 1). Before performing the image processing based on the i-times position adjustment parameter Z _i, the i-times position adjustment parameter Z _i to determine whether the position detection section. When the i-th position calibration parameter Z _i is not in the position detection section, the above operation is stopped. When the i-th position calibration parameter Z _i is in the position detection section, a position control signal is transmitted based on the i-th position calibration parameter Z _i . The stereoscopic display device 1 performs an alignment process on the display unit 121 based on the position control signal, displays the stereoscopic image after the alignment process, and acquires the stereoscopic image. When the i-th position calibration parameter Z _i is out of the position detection section, the above operation is stopped. Image processing is performed on the stored stereoscopic image, a position calibration parameter that satisfies a predetermined condition is acquired, and the position calibration parameter is stored. When a stereoscopic image is displayed by the stereoscopic display device 1, an arrangement process is performed on the display unit 121 based on the position calibration parameter to eliminate the influence of the position error on the display effect. The acquisition of the position calibration parameter does not require manual work by the operator, reduces the labor intensity of the operator, and calibrates after the stereoscopic display device 1 is completely mounted. Therefore, the calibration result is highly reliable and the stereoscopic display effect is improved. Helps improve.

<Embodiment 5>
The stereoscopic display device calibration method according to the present embodiment is substantially the same as the stereoscopic display device calibration method according to the third and fourth embodiments. As a difference, as shown in FIG. 6, after step S2, step S5 for storing calibration parameters is further included.

In the present embodiment, calibration parameters are acquired based on a stereoscopic image, and the calibration parameters are stored in the stereoscopic display device 1. When the user uses the stereoscopic display device 1, the stereoscopic display device 1 calibrates the mounting error based on the calibration parameter, and eliminates the influence of the mounting error on the display effect. Of course, the calibration parameters may be stored in a storage medium. When the user uses the stereoscopic display device 1, calibration parameters are acquired from the storage medium, and the operation is convenient.

What has been described above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (23)

In a calibration system for a stereoscopic display device for obtaining calibration parameters satisfying predetermined conditions of a stereoscopic display device including a spectroscopic device and a display panel ,
Including an image acquisition device and a control device;
The image acquisition device acquires a stereoscopic image displayed on the stereoscopic display device, transmits the stereoscopic image to the control device,
The control device processes the received stereoscopic image to obtain the calibration parameter,
The calibration parameter state, and are intended to calibrate the mounting error between the display panel and the dividing device,
The stereoscopic display device includes a tracking unit;
The image acquisition device is attached to a mark model identifiable by the tracking unit;
When the mark model is tracked by the tracking unit, wherein the image acquisition device, calibration system of the stereoscopic display device comprising that you get the stereoscopic image displayed on the stereoscopic display device. The calibration system for a stereoscopic display device according to claim 1,
A calibration system for a stereoscopic display device, wherein the calibration parameter is stored in the stereoscopic display device or stored in a storage medium. The stereoscopic display device calibration system according to claim 2,
The stereoscopic display device includes a spectral unit arranged along a first direction and a display unit arranged along a second direction,
The three-dimensional display device according to claim 3, wherein the calibration parameter includes a horizontal shift amount calibration parameter for calibrating a horizontal shift amount error due to a mismatch in arrangement period of the spectroscopic unit and the display unit among the mounting errors. Calibration system. The stereoscopic display device calibration system according to claim 3,
3. The stereoscopic display device calibration system, wherein the control device includes a horizontal shift amount calibration module that acquires the horizontal shift amount calibration parameter that satisfies the predetermined condition based on the stereoscopic image. The stereoscopic display device calibration system according to claim 3,
The calibration system for a stereoscopic display device, wherein the calibration parameter further includes an angle calibration parameter for calibrating an angle error due to an angle between the first direction and the second direction among the mounting errors. . The stereoscopic display device calibration system according to claim 5,
The control apparatus further includes an angle calibration module that acquires the angle calibration parameter that satisfies the predetermined condition based on the stereoscopic image. The calibration system for a stereoscopic display device according to claim 1 ,
The calibration system for a stereoscopic display device, wherein the calibration parameter further includes a position calibration parameter for calibrating a position error due to a mounting position of the tracking unit among the mounting errors. The calibration system for a stereoscopic display device according to claim 7 ,
The control system further includes a position calibration module that acquires the position calibration parameter that satisfies the predetermined condition based on the stereoscopic image. The calibration system for a stereoscopic display device according to claim 1 ,
3. The calibration system for a stereoscopic display device, wherein the mark model is provided with an image feature that can be identified by the tracking unit. The calibration system for a stereoscopic display device according to claim 9 ,
The image display feature includes one or a plurality of types of a human face feature, a pattern feature, a character feature, and a color feature. The calibration system for a stereoscopic display device according to claim 1 ,
3. The stereoscopic display device calibration system, wherein the image acquisition device includes at least one camera installed at a position of a human eye. The calibration system for a stereoscopic display device according to claim 1 ,
The stereoscopic display device calibration system, wherein the control device further includes a region detection module for detecting a display region of the stereoscopic display device. The calibration system for a stereoscopic display device according to claim 1 ,
3. The calibration system for a stereoscopic display device, wherein the control device is attached to the stereoscopic display device or independent from the stereoscopic display device. The stereoscopic display device calibration system according to claim 13 ,
The control device is connected to the stereoscopic display device and controls display of the stereoscopic image by the stereoscopic display device. In a calibration method of a stereoscopic display device for obtaining calibration parameters satisfying predetermined conditions of a stereoscopic display device including a spectroscopic device and a display panel ,
Obtaining a stereoscopic image displayed on the stereoscopic display device;
Based on the three-dimensional image, the step S2 of acquiring calibration parameters for calibrating the mounting error between the spectral device and the display panel, only including,
The stereoscopic display device is provided with a tracking unit for tracking a predetermined mark model,
Prior to step S1,
The mark model is tracked by the tracking unit, the calibration method of the stereoscopic display device according to claim further including Mukoto the tracking step is a step S3, the process proceeds to step S1. The method for calibrating a stereoscopic display device according to claim 15 ,
The mounting error includes a horizontal shift amount error,
The step S2 includes a step S21 of acquiring a horizontal shift amount calibration parameter for calibrating the horizontal shift amount error based on the stereoscopic image. The method for calibrating a stereoscopic display device according to claim 16 ,
Specifically, step S21
Step S211 for setting a horizontal shift amount detection section;
Acquiring the stereoscopic image based on the horizontal shift amount detection section;
And a step S213 of acquiring the horizontal shift amount calibration parameter that satisfies a predetermined condition based on the stereoscopic image. The method for calibrating a stereoscopic display device according to claim 15 ,
The mounting error includes an angle error,
Step S2
The method for calibrating a stereoscopic display device, further comprising step S22 of obtaining an angle calibration parameter for calibrating the angle error based on the stereoscopic image. The method for calibrating a stereoscopic display device according to claim 18 ,
Specifically, step S22
Step S221 for setting an angle detection section;
Obtaining the stereoscopic image based on the angle detection section, S222;
A calibration method for a stereoscopic display device, comprising: obtaining the angle calibration parameter that satisfies a predetermined condition based on the stereoscopic image. The method for calibrating a stereoscopic display device according to claim 15 ,
The mounting error further includes a position error due to the mounting position of the tracking unit;
Step S2
A method for calibrating a stereoscopic display device, further comprising a step S23 of acquiring a position calibration parameter for calibrating the position error based on the stereoscopic image. The method for calibrating a stereoscopic display device according to claim 20 ,
Specifically, step S23 is:
Step S231 for setting a position detection section;
Step S232 for acquiring the stereoscopic image based on the position detection section;
A calibration method for a stereoscopic display device, comprising: obtaining the position calibration parameter satisfying a predetermined condition based on the stereoscopic image. The method for calibrating a stereoscopic display device according to claim 15 ,
Prior to step S1,
The method for calibrating a stereoscopic display device, further comprising step S4 of detecting a display area of the stereoscopic display device. The method for calibrating a stereoscopic display device according to claim 20 ,
After step S2,
The method for calibrating a stereoscopic display device, further comprising step S5 of storing the calibration parameter.