CN109658384B - Screen test positioning control method, device and system - Google Patents
Screen test positioning control method, device and system Download PDFInfo
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- CN109658384B CN109658384B CN201811406374.8A CN201811406374A CN109658384B CN 109658384 B CN109658384 B CN 109658384B CN 201811406374 A CN201811406374 A CN 201811406374A CN 109658384 B CN109658384 B CN 109658384B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/90—Determination of colour characteristics
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
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- G—PHYSICS
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The invention discloses a control method, a device and a system for screen test positioning, wherein the method comprises the following steps: controlling the movable mechanism to move so as to align the center of the standard screen with the optical center of the calibration camera, and recording first movement information of the movable mechanism; controlling a calibration camera to shoot a calibration image displayed on a standard screen to obtain a first image; controlling the movable mechanism to move so that the center of the circular spot image displayed by the standard screen in a switching way is aligned with the center of the color analyzer, and recording second movement information of the movable mechanism; controlling the movable mechanism to drive the positioning mechanism to move according to the first movement information; controlling a calibration camera to shoot a calibration image displayed on a screen to be tested, and obtaining a second image; determining positional correction information of the positioning mechanism based on the first imaging and the second imaging; correcting the position of the movable mechanism using the position correction information; and controlling the movable mechanism to drive the positioning mechanism to move according to the first movement information and the second movement information.
Description
Technical Field
The present invention relates to the field of screen detection technologies, and in particular, to a method for controlling screen test positioning, a device for controlling screen test positioning, and a system for controlling screen test.
Background
With the improvement of electronic technology, various electronic products (mobile phones, tablet computers, VR (Virtual Reality) devices and other electronic products with display screens) are widely used.
The display screen is used as an important display component of the electronic product, and color detection is an important link.
The conventional testing method is that a tester uses a color analyzer to test the screens one by one, so that the testing efficiency is low, and the mode can not accurately align the screen area required to be tested, thereby influencing the accuracy of the testing result.
Therefore, there is a need to provide a new technical solution, which is improved against the technical problems in the prior art.
Disclosure of Invention
It is an object of the present invention to provide a new solution for controlling screen test positioning.
According to a first aspect of the present invention, there is provided a control method for screen test positioning, including:
under the condition that a standard screen is arranged on the positioning mechanism, controlling the movable mechanism to drive the positioning mechanism to move so as to align the center of the standard screen with the optical center of the calibration camera, and recording first movement information of the movable mechanism;
controlling the calibration camera to shoot a calibration image displayed on a standard screen to obtain a first image;
controlling the movable mechanism to drive the positioning mechanism to move so as to align the center of the circular spot image displayed by the standard screen in a switching way with the center of the color analyzer, and recording second movement information of the movable mechanism;
under the condition that the positioning mechanism is provided with a screen to be tested, controlling the movable mechanism to drive the positioning mechanism to move according to the first movement information;
controlling the calibration camera to shoot a calibration image displayed on a screen to be tested, and obtaining a second image;
determining positional correction information for the positioning mechanism from the first imaging and the second imaging;
correcting a position of the movable mechanism using the position correction information;
and controlling the movable mechanism to drive the positioning mechanism to move according to the first movement information and the second movement information so as to align the center of the circular spot image displayed by the screen to be detected in a switching way with the center of the color analyzer.
Optionally, the calibration image is two symmetrical patterns, wherein the two symmetrical patterns are symmetrically distributed on two sides of one symmetry axis of the screen, and the center point of each symmetrical pattern and the center point of the screen are on the same straight line.
Optionally, the symmetrical pattern is any one of a cross pattern, a circle and a rectangle.
Optionally, the screen to be tested is a VR screen, and the center points of the two symmetrical graphics are respectively coincident with the centers of the two imaging areas of the VR screen.
Optionally, the movable mechanism comprises a first horizontal movement mechanism, a second horizontal movement mechanism and a rotation mechanism, the positioning mechanism being mounted on the rotation mechanism, wherein,
the first horizontal moving mechanism is used for driving the second horizontal moving mechanism to move along the x-axis, the second horizontal moving mechanism is used for driving the rotating mechanism to move along the y-axis,
the x-axis and the y-axis are parallel to the base and perpendicular to each other, the rotation axis of the rotation mechanism is the z-axis and perpendicular to the base, wherein,
determining positional correction information for the positioning mechanism from the first imaging and the second imaging, comprising:
acquiring center coordinate information of two symmetrical patterns in a first imaging and center coordinate information of two symmetrical patterns in a second imaging;
and determining movement information moving along the x-axis, movement information moving along the y-axis and rotation angle information rotating around the z-axis as position correction information according to the center coordinate information of the two symmetrical patterns in the first imaging and the center coordinate information of the two symmetrical patterns in the second imaging.
Optionally, the first movement information includes a first movement distance of a second horizontal movement mechanism and a second movement distance of a rotation mechanism, the second movement information includes a third movement distance of the second horizontal movement mechanism and a fourth movement distance of the rotation mechanism,
according to the first movement information and the second movement information, controlling the movable mechanism to drive the positioning mechanism to move comprises the following steps:
determining a first difference between the first and third movement distances and a second difference between the second and fourth movement distances, respectively;
and controlling the movable mechanism to drive the positioning mechanism to move according to the first difference value and the second difference value.
According to a second aspect of the present invention, there is provided a control device for screen test positioning, comprising:
the first movement information determining module is used for controlling the movable mechanism to drive the positioning mechanism to move under the condition that the positioning mechanism is provided with a standard screen, so that the center of the standard screen is aligned with the optical center of the calibration camera, and recording first movement information of the movable mechanism;
the first imaging acquisition module is used for controlling the calibration camera to shoot a calibration image displayed on the standard screen to obtain a first imaging;
the second movement information determining module is used for controlling the movable mechanism to drive the positioning mechanism to move so as to align the center of the round spot image displayed by the standard screen in a switching way with the center of the color analyzer and record second movement information of the movable mechanism;
the control module is used for controlling the movable mechanism to drive the positioning mechanism to move according to the first movement information under the condition that the positioning mechanism is provided with a screen to be tested;
the second imaging acquisition module is used for controlling the calibration camera to shoot a calibration image displayed on the screen to be tested, so as to obtain a second imaging;
a position correction information determining module for determining position correction information of the positioning mechanism from the first imaging and the second imaging;
a correction module for correcting a position of the movable mechanism using the position correction information;
the control module is also used for controlling the movable mechanism to drive the positioning mechanism to move according to the first movement information and the second movement information so as to align the center of the circular spot image displayed by the screen to be detected in a switching way with the center of the color analyzer.
According to a third aspect of the present invention, there is provided a control device for screen test positioning, comprising: a memory and a processor, wherein the memory stores executable instructions that control the processor to operate to perform the control method of screen test positioning according to any one of the first aspects.
According to a fourth aspect of the present invention, there is provided a control system for screen test, comprising a positioning device for screen test and a control apparatus for screen test positioning according to the second or third aspect, wherein,
the control device for screen test positioning is used for controlling the positioning equipment for screen test,
optionally, the positioning device for screen testing comprises a base, a movable mechanism, a positioning mechanism, a frame, a calibration camera, and a first color analyzer, wherein,
the movable mechanism is mounted on the base, the movable mechanism can move on the base and can rotate around the direction vertical to the base,
the positioning mechanism is fixed on the movable mechanism and is used for installing a screen,
the frame is fixed on the base, and the calibration camera and the first color analyzer are both fixed on the frame.
The embodiment of the invention has the beneficial effects that the automatic test of the screen can be realized, the test efficiency is improved, and the accuracy of screen positioning can be improved.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a process flow diagram of a control method of screen test positioning according to one embodiment of the invention.
Fig. 2a is a schematic structural view of a positioning device for screen test according to an embodiment of the present invention.
Fig. 2b is a schematic view of another angle of the positioning device for screen test according to the embodiment of the present invention.
Fig. 2c is a schematic view of another angle of the positioning device for screen test according to the embodiment of the present invention.
Fig. 3 is a schematic diagram of a calibration image according to an embodiment of the invention.
FIG. 4 is a schematic illustration of a circular speckle image in accordance with embodiments of the invention.
Fig. 5 is a schematic structural view of a control device for screen test positioning according to an embodiment of the present invention.
Fig. 6 is a schematic diagram showing a hardware configuration of a control device for screen test positioning according to an embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
< method >
Fig. 1 is a process flow diagram of a control method of screen test positioning according to one embodiment of the invention.
According to the positioning method of the screen test shown in fig. 1, at least steps S1100-S1800 are included.
The operations involved in steps S1100 to S1300 are positioning operations when screen test is performed based on a standard screen. The operations involved in steps S1400-S1800 are positioning operations for performing screen testing on the screen to be tested according to positioning information obtained based on the standard screen.
In step S1100, in the case that the positioning mechanism is mounted with the standard screen, the movable mechanism is controlled to drive the positioning mechanism to move, so that the center of the standard screen is aligned with the optical center of the calibration camera, and the first movement information of the movable mechanism is recorded.
Fig. 2a is a schematic structural view of a positioning device for screen test according to an embodiment of the present invention.
As shown in fig. 2a, the positioning apparatus for screen testing includes a base 1100, a movable mechanism 1200, a positioning mechanism 1300, a frame 1400, a calibration camera 1500, and a first color analyzer 1600a.
The movable mechanism 1200 is mounted on the base 1100. The movable mechanism 1200 is movable on the base 1100 and is rotatable about a direction perpendicular to the base 1100.
The positioning mechanism 1300 is fixed to the movable mechanism 1200 and is used for mounting a screen.
The frame 1400 is fixed to the base 1100. The calibration camera 1500 and the first color analyzer 1600 are both fixed to the housing 1400.
The movable mechanism 1200 is used to drive the screen mounted on the positioning mechanism 1300 to move below the calibration camera, so that the calibration camera 1500 captures an image displayed on the screen.
The movable mechanism 1200 is further used to drive the screen mounted on the positioning mechanism 1300 to move under the first color analyzer 1600a, so that the first color analyzer 1600a is aligned to the screen area to be tested.
Fig. 2b is a schematic view of another angle of the positioning device for screen test according to the embodiment of the present invention. Fig. 2c is a schematic view of another angle of the positioning device for screen test according to the embodiment of the present invention.
As shown in fig. 2b and 2c, the movable mechanism 1200 includes a first horizontal movement mechanism 1210, a second horizontal movement mechanism 1220, and a rotation mechanism 1230. The positioning mechanism 1300 is mounted on the rotating mechanism 1230.
The first horizontal moving mechanism 1210 is configured to drive the second horizontal moving mechanism 1220 to move along the x-axis. The second horizontal moving mechanism 1220 is used to drive the rotating mechanism 1230 to move along the y-axis. Wherein the x-axis and the y-axis are both parallel to the base 1100 and perpendicular to each other. The rotation axis of the rotation mechanism 1230 is the z-axis and is perpendicular to the base.
As shown in fig. 2b and 2c, a first horizontal moving mechanism 1210 is fixed to the base 1100. The second horizontal moving mechanism 1220 is fixed to the first support plate 1240. One end of the first support plate 1240 is fixed to the first horizontal moving mechanism 1210, and the other end of the support plate 1240 is fixed to the support frame 1250. The support frame 1250 is fixed to a slide rail 1260 provided on the base 1100. The rotating mechanism 1230 is fixed to the second support plate 1270. The second support plate 1270 is fixed to the second horizontal moving mechanism 1220.
In this embodiment, the first horizontal movement mechanism 1210 includes a first electric cylinder 1211 and a first slider 1212. The second horizontal movement mechanism 1220 includes a second cylinder 1221 and a second slider 1222. The rotation mechanism 1230 includes a direct drive motor 1231.
The first electric cylinder 1211 is fixed to the base 1100. The first electric cylinder 1211 is used to move the first slider 1212 along the x-axis.
The second electric cylinder 1221 is fixed to the first support plate 1240. The first support plate 1240 is fixed to the first slider 1212. The second electric cylinder 1221 is used to move the second slider 1222 along the y-axis.
The direct drive motor 1231 is fixed to the second support plate 1270. The second support plate 1270 is fixed to the second slider 1222.
In the embodiment of the present invention, when the first cylinder 1211 drives the first slider 1212 to move along the x-axis, the first support plate 1240 drives the second horizontal moving mechanism 1220 to move along the x-axis, and further drives the positioning mechanism 1300 to move along the x-axis. When the second electric cylinder 1221 drives the second slider 1222 to move along the y-axis, the second support plate 1270 drives the rotating mechanism 1230 to move along the y-axis, and further drives the positioning mechanism 1300 to move along the y-axis. In an embodiment of the present invention, the first electric cylinder 1211, the second electric cylinder 1221, and the direct drive motor 1231 each include an absolute encoder to improve accuracy and stability of positioning.
In the embodiment of the invention, the positioning mechanism can be driven to move along the x-axis, move along the y-axis and rotate around the z-axis by the movement of the first horizontal moving mechanism, the second horizontal moving mechanism and the rotating mechanism, so that a screen arranged on the positioning mechanism is driven to move along the x-axis, move along the y-axis and rotate around the z-axis.
In the embodiment of the invention, in the case that the positioning mechanism is provided with the standard screen, the standard screen is controlled to display the calibration image. The calibration image is two symmetrical patterns. The two symmetrical patterns are symmetrically distributed on two sides of a symmetrical axis of the standard screen, and the center point of each symmetrical pattern and the center point of the screen are positioned on the same straight line. The symmetrical pattern can be any one of a cross pattern, a circle and a rectangle.
Fig. 3 is a schematic diagram of a calibration image according to an embodiment of the invention. According to fig. 3, a standard screen is shown with two cross patterns. The center of the standard screen is aligned with the optical center of the calibration camera when the midpoint of the line connecting the centers of the two cross patterns coincides with the center of the image sensor of the calibration camera.
In the embodiment of the invention, the first movement information includes a movement distance of the second horizontal movement mechanism along the x axis and a movement distance of the rotation mechanism along the y axis, which are respectively recorded as a first movement distance and a second movement distance. The first movement information is determined with respect to the start position of the movable mechanism.
In step S1200, the calibration camera is controlled to capture a calibration image displayed on the standard screen, so as to obtain a first image.
In the embodiment of the invention, after the first imaging is obtained, the standard screen is controlled to display the circular spot image, then step S1300 is executed, and the movable mechanism is controlled to drive the positioning mechanism to move, so that the center of the circular spot image displayed by the standard screen in a switching way is aligned with the center of the color analyzer, and the second movement information of the movable mechanism is recorded.
FIG. 4 is a schematic illustration of a circular speckle image in accordance with embodiments of the invention.
The circular speckle image is a display image commonly used when a color analyzer tests a screen. When the color analyzer tests the screen, the center of the color analyzer is aligned with the center of the circular spot image so as to test the screen display area corresponding to the circular spot image.
In the embodiment of the invention, the second movement information includes a movement distance of the second horizontal movement mechanism along the x axis and a movement distance of the rotation mechanism along the y axis, which are respectively noted as a third movement distance and a fourth movement distance. The second movement information is also determined with respect to the start position of the movable mechanism.
In the embodiment of the invention, after the positioning operation based on the standard screen is completed, the movable mechanism is controlled to move to the starting position. Then, the standard screen installed on the positioning mechanism is replaced by the screen to be tested by a manual mode or a mechanical mode.
In step S1400, when the positioning mechanism is mounted with the screen to be tested, the movable mechanism is controlled to drive the positioning mechanism to move according to the first movement information.
In the embodiment of the invention, the first horizontal moving mechanism is controlled to move according to the first moving distance, and the second horizontal moving mechanism is controlled to move according to the second moving distance so as to drive the positioning mechanism to move.
Step S1500, the calibration camera is controlled to shoot a calibration image displayed on the screen to be tested, and a second imaging is obtained.
Step S1600, determining position correction information of the positioning mechanism according to the first imaging and the second imaging.
In the embodiment of the invention, the center coordinate information of the two symmetrical patterns in the first imaging and the center coordinate information of the two symmetrical patterns in the second imaging are obtained. And determining movement information moving along the x-axis, movement information moving along the y-axis and rotation angle information rotating around the z-axis as position correction information according to the center coordinate information of the two symmetrical patterns in the first imaging and the center coordinate information of the two symmetrical patterns in the second imaging.
Taking the calibration image shown in fig. 3 as an example, a two-dimensional coordinate system is established on the imaging of the calibration camera. The x-axis direction of the two-dimensional coordinate system is parallel to the x-axis direction of the three-dimensional coordinate system, and the y-axis direction of the two-dimensional coordinate system is parallel to the y-axis direction of the three-dimensional coordinate system. The central coordinate information of the two cross patterns in the first imaging is (x 1, y 1), (x 2, y 2) respectively, and the central coordinate information of the two cross patterns in the second imaging is (x 1', y 1') and (x 2', y 2') respectively.
First, a straight line is obtained according to the central coordinate information (x 1, y 1) (x 2, y 2) of the two cross patterns in the first imaging, and the slope k1 of the straight line can be obtained by solving a binary first-order equation y=kx+b. Then, a straight line is obtained according to the central coordinate information (x 1', y 1'), (x 2', y 2') of the two cross patterns in the second imaging, and the slope k2 of the straight line can also be obtained by solving a binary once equation y=kx+b. Next, an angle θ1 corresponding to the slope k1 and an angle θ2 corresponding to the slope k2 are calculated according to the formula k=tan θ, respectively, and the difference between the angle θ1 and the angle θ2 is taken as a rotation angle rotating around the z-axis.
If the calculated rotation angle of rotation around the z axis is 0, the difference value of the center coordinate information x1 and x1 'and the difference value of the center coordinate information y1 and y1' are calculated, the difference value of the center coordinate information x1 and x1 'is used as moving information moving along the x axis, and the difference value of the center coordinate information y1 and y1' is used as moving information moving along the y axis. Or, the difference value of the central coordinate information x2 and x2 'and the difference value of the central coordinate information y2 and y2' are calculated respectively, the difference value of the central coordinate information x2 and x2 'is taken as the movement information moving along the x axis, and the difference value of the central coordinate information y2 and y2' is taken as the movement information moving along the y axis.
If the calculated rotation angle around the z axis is not 0, first, center coordinate information (x 1', y 1'), (x 2', y 2') of two cross patterns in the second imaging are respectively obtained according to the rotation angle around the z axis, and corresponding coordinate information (x 3', y 3'), (x 4', y 4') after rotation around the z axis. Then, the difference value of the center coordinate information x1 and x3 'and the difference value of the center coordinate information y1 and y3' are calculated, respectively, and the difference value of the center coordinate information x1 and x3 'is used as movement information for moving along the x axis, and the difference value of the center coordinate information y1 and y3' is used as movement information for moving along the y axis. Or, the difference value of the central coordinate information x2 and x4 'and the difference value of the central coordinate information y2 and y4' are respectively calculated, the difference value of the central coordinate information x2 and x4 'is taken as the movement information moving along the x axis, and the difference value of the central coordinate information y2 and y4' is taken as the movement information moving along the y axis.
Step S1700 corrects the position of the movable mechanism using the position correction information.
In an embodiment of the present invention, the first horizontal movement mechanism is controlled to move according to movement information moving along the x-axis, the second horizontal movement mechanism is controlled to move according to movement information moving along the y-axis, and the rotation mechanism is controlled to rotate according to rotation angle information rotating around the z-axis, so that the center of the screen to be measured is aligned with the optical center of the calibration camera.
And step S1800, controlling the movable mechanism to drive the positioning mechanism to move according to the first movement information and the second movement information so as to align the center of the circular spot image displayed by the screen to be tested in a switching way with the center of the color analyzer.
In an embodiment of the present invention, a first difference between the first moving distance and the third moving distance, and a second difference between the second moving distance and the fourth moving distance are determined, respectively. And controlling the movable mechanism to drive the positioning mechanism to move according to the first difference value and the second difference value, namely driving the first horizontal movement mechanism to move according to the first difference value and driving the second horizontal movement mechanism to move according to the second difference value, so that the center of the circular spot image displayed by the screen to be tested is aligned with the center of the color analyzer.
The control method for screen test positioning provided by the embodiment of the invention is suitable for positioning any electronic equipment screen during test. When the screen to be measured is a VR screen, based on the characteristics of split-screen display of the VR screen, the center points of two symmetrical graphs in the calibration image are respectively overlapped with the centers of two imaging areas of the VR screen. In performing screen testing, the VR screen displays two circular spot images, see fig. 4, each with its center aligned with the center of one color analyzer. And testing the split screen display area of the corresponding VR screen by using a color analyzer.
< device >
Fig. 5 is a schematic structural view of a control device for screen test positioning according to an embodiment of the present invention. According to fig. 5, the device comprises at least: the first movement information determination module 510, the first imaging acquisition module 520, the second movement information determination module 530, the control module 540, the second imaging acquisition module 550, the position correction information determination module 560, the correction module 570.
The first movement information determining module 510 is configured to control the movable mechanism to move the positioning mechanism so that the center of the standard screen is aligned with the optical center of the calibration camera, and record first movement information of the movable mechanism when the standard screen is installed on the positioning mechanism.
The first imaging obtaining module 520 is configured to control the calibration camera to capture a calibration image displayed on the standard screen, so as to obtain a first image.
The second movement information determining module 530 is configured to control the movable mechanism to drive the positioning mechanism to move, so that the center of the circular spot image displayed by the standard screen is aligned with the center of the color analyzer, and record the second movement information of the movable mechanism.
The control module 540 is configured to control the movable mechanism to drive the positioning mechanism to move according to the first movement information when the positioning mechanism is provided with the screen to be tested.
The second imaging obtaining module 550 is configured to control the calibration camera to capture a calibration image displayed on the screen to be tested, so as to obtain a second image.
The position correction information determination module 560 is configured to determine position correction information for the positioning mechanism based on the first imaging and the second imaging.
The correction module 570 is used to correct the position of the movable mechanism using the position correction information.
The control module 540 is further configured to control the movable mechanism to drive the positioning mechanism to move according to the first movement information and the second movement information, so that the center of the circular spot image displayed by the screen to be tested in a switching manner is aligned with the center of the color analyzer.
In one embodiment of the invention, the calibration image is two symmetrical patterns, wherein the two symmetrical patterns are symmetrically distributed on two sides of one symmetry axis of the screen, and the center point of each symmetrical pattern and the center point of the screen are on the same straight line. The symmetrical pattern is any one of a cross pattern, a circle and a rectangle.
In one embodiment of the present invention, the location correction information determining module 560 is further configured to obtain the center coordinate information of the two symmetrical patterns in the first imaging and the center coordinate information of the two symmetrical patterns in the second imaging; and determining movement information moving along the x-axis, movement information moving along the y-axis and rotation angle information rotating around the z-axis as position correction information according to the center coordinate information of the two symmetrical patterns in the first imaging and the center coordinate information of the two symmetrical patterns in the second imaging.
In one embodiment of the present invention, the first movement information includes a first movement distance of the second horizontal movement mechanism and a second movement distance of the rotation mechanism, and the second movement information includes a third movement distance of the second horizontal movement mechanism and a fourth movement distance of the rotation mechanism. The control module 540 is further configured to determine a first difference between the first moving distance and the third moving distance, and a second difference between the second moving distance and the fourth moving distance, and control the movable mechanism to drive the positioning mechanism to move according to the first difference and the second difference.
Fig. 6 is a schematic diagram showing a hardware configuration of a control device for screen test positioning according to an embodiment of the present invention. Referring to fig. 6, the apparatus includes at least: the device comprises a memory 620 and a processor 610, wherein the memory 620 stores executable instructions, and the executable instructions control the processor 610 to operate to execute the tool acupoint feeding control method according to any one of the above.
< System >
One embodiment of the present invention provides a control system for screen testing. The control system for screen test comprises the positioning device for screen test shown in fig. 2a and the control device for screen test positioning provided by any of the embodiments above. The control device for screen test positioning is used for controlling positioning equipment for screen test.
The present invention may be a system, method, and/or computer program product. The computer program product may include a computer readable storage medium having computer readable program instructions embodied thereon for causing a processor to implement aspects of the present invention.
The computer readable storage medium may be a tangible device that can hold and store instructions for use by an instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: portable computer disks, hard disks, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static Random Access Memory (SRAM), portable compact disk read-only memory (CD-ROM), digital Versatile Disks (DVD), memory sticks, floppy disks, mechanical coding devices, punch cards or in-groove structures such as punch cards or grooves having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media, as used herein, are not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., optical pulses through fiber optic cables), or electrical signals transmitted through wires.
The computer readable program instructions described herein may be downloaded from a computer readable storage medium to a respective computing/processing device or to an external computer or external storage device over a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmissions, wireless transmissions, routers, firewalls, switches, gateway computers and/or edge servers. The network interface card or network interface in each computing/processing device receives computer readable program instructions from the network and forwards the computer readable program instructions for storage in a computer readable storage medium in the respective computing/processing device.
Computer program instructions for carrying out operations of the present invention may be assembly instructions, instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, c++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer readable program instructions may be executed entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present invention are implemented by personalizing electronic circuitry, such as programmable logic circuitry, field Programmable Gate Arrays (FPGAs), or Programmable Logic Arrays (PLAs), with state information for computer readable program instructions, which can execute the computer readable program instructions.
Various aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.
These computer readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer readable program instructions may also be stored in a computer readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer readable medium having the instructions stored therein includes an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, implementation by software, and implementation by a combination of software and hardware are all equivalent.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the invention is defined by the appended claims.
Claims (10)
1. The control method for screen test positioning is characterized by comprising the following steps:
under the condition that a standard screen is arranged on the positioning mechanism, controlling the movable mechanism to drive the positioning mechanism to move so as to align the center of the standard screen with the optical center of the calibration camera, and recording first movement information of the movable mechanism;
controlling the calibration camera to shoot a calibration image displayed on a standard screen to obtain a first image;
controlling the movable mechanism to drive the positioning mechanism to move so as to align the center of the circular spot image displayed by the standard screen in a switching way with the center of the color analyzer, and recording second movement information of the movable mechanism;
under the condition that the positioning mechanism is provided with a screen to be tested, controlling the movable mechanism to drive the positioning mechanism to move according to the first movement information;
controlling the calibration camera to shoot a calibration image displayed on a screen to be tested, and obtaining a second image;
determining positional correction information for the positioning mechanism from the first imaging and the second imaging;
correcting a position of the movable mechanism using the position correction information;
and controlling the movable mechanism to drive the positioning mechanism to move according to the first movement information and the second movement information so as to align the center of the circular spot image displayed by the screen to be detected in a switching way with the center of the color analyzer.
2. The method of claim 1, wherein the calibration image is two symmetrical patterns, wherein the two symmetrical patterns are symmetrically distributed on both sides of one symmetry axis of the screen, and wherein the center point of each symmetrical pattern is on the same line as the center point of the screen.
3. The method of claim 2, wherein the symmetrical pattern is any one of a cross pattern, a circle, and a rectangle.
4. The method according to claim 2, wherein the screen to be tested is a VR screen, and the center points of the two symmetrical patterns are respectively coincident with the centers of the two imaging areas of the VR screen.
5. The method of claim 2, wherein the movable mechanism is mounted on a base, the movable mechanism comprising a first horizontal movement mechanism, a second horizontal movement mechanism, and a rotation mechanism, the positioning mechanism being mounted on the rotation mechanism, wherein,
the first horizontal moving mechanism is used for driving the second horizontal moving mechanism to move along the x-axis, the second horizontal moving mechanism is used for driving the rotating mechanism to move along the y-axis,
the x axis and the y axis are parallel to the base and perpendicular to each other, the rotation axis of the rotation mechanism is the z axis and perpendicular to the base, wherein,
determining positional correction information for the positioning mechanism from the first imaging and the second imaging, comprising:
acquiring center coordinate information of two symmetrical patterns in a first imaging and center coordinate information of two symmetrical patterns in a second imaging;
and determining movement information moving along the x-axis, movement information moving along the y-axis and rotation angle information rotating around the z-axis as position correction information according to the center coordinate information of the two symmetrical patterns in the first imaging and the center coordinate information of the two symmetrical patterns in the second imaging.
6. The method of claim 5, wherein the first movement information comprises a first movement distance of a second horizontal movement mechanism and a second movement distance of a rotation mechanism, the second movement information comprises a third movement distance of the second horizontal movement mechanism and a fourth movement distance of the rotation mechanism,
according to the first movement information and the second movement information, controlling the movable mechanism to drive the positioning mechanism to move comprises the following steps:
determining a first difference between the first and third movement distances and a second difference between the second and fourth movement distances, respectively;
and controlling the movable mechanism to drive the positioning mechanism to move according to the first difference value and the second difference value.
7. A control device for screen test positioning, comprising:
the first movement information determining module is used for controlling the movable mechanism to drive the positioning mechanism to move under the condition that the positioning mechanism is provided with a standard screen, so that the center of the standard screen is aligned with the optical center of the calibration camera, and recording first movement information of the movable mechanism;
the first imaging acquisition module is used for controlling the calibration camera to shoot a calibration image displayed on the standard screen to obtain a first imaging;
the second movement information determining module is used for controlling the movable mechanism to drive the positioning mechanism to move so as to align the center of the round spot image displayed by the standard screen in a switching way with the center of the color analyzer and record second movement information of the movable mechanism;
the control module is used for controlling the movable mechanism to drive the positioning mechanism to move according to the first movement information under the condition that the positioning mechanism is provided with a screen to be tested;
the second imaging acquisition module is used for controlling the calibration camera to shoot a calibration image displayed on the screen to be tested, so as to obtain a second imaging;
a position correction information determining module for determining position correction information of the positioning mechanism from the first imaging and the second imaging;
a correction module for correcting a position of the movable mechanism using the position correction information;
the control module is also used for controlling the movable mechanism to drive the positioning mechanism to move according to the first movement information and the second movement information so as to align the center of the circular spot image displayed by the screen to be detected in a switching way with the center of the color analyzer.
8. A control device for screen test positioning, comprising: a memory and a processor, wherein the memory stores executable instructions that control the processor to operate to perform the control method of screen test positioning according to any one of claims 1-6.
9. A control system for screen testing, characterized by comprising a positioning device for screen testing and a control apparatus for screen testing positioning according to claim 7 or 8, wherein,
the control device for screen test positioning is used for controlling the positioning equipment for screen test.
10. The system of claim 9, wherein the positioning device for screen testing comprises a base, a movable mechanism, a positioning mechanism, a frame, a calibration camera, and a first color analyzer, wherein,
the movable mechanism is mounted on the base, the movable mechanism can move on the base and can rotate around the direction vertical to the base,
the positioning mechanism is fixed on the movable mechanism and is used for installing a screen,
the frame is fixed on the base, and the calibration camera and the first color analyzer are both fixed on the frame.
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| CN201811406374.8A CN109658384B (en) | 2018-11-23 | 2018-11-23 | Screen test positioning control method, device and system |
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| CN201811406374.8A CN109658384B (en) | 2018-11-23 | 2018-11-23 | Screen test positioning control method, device and system |
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| CN106950917A (en) * | 2017-01-23 | 2017-07-14 | 深圳市卓翼科技股份有限公司 | Camera calibrated method and device |
| CN107123144A (en) * | 2017-03-31 | 2017-09-01 | 维沃移动通信有限公司 | A kind of method and mobile terminal for positioning calibration |
| CN108769668A (en) * | 2018-05-31 | 2018-11-06 | 歌尔股份有限公司 | Method for determining position and device of the pixel in VR display screens in camera imaging |
| CN110978056A (en) * | 2019-12-18 | 2020-04-10 | 东莞市沃德精密机械有限公司 | Plane calibration system and method for robot movement |
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| CN106950917A (en) * | 2017-01-23 | 2017-07-14 | 深圳市卓翼科技股份有限公司 | Camera calibrated method and device |
| CN107123144A (en) * | 2017-03-31 | 2017-09-01 | 维沃移动通信有限公司 | A kind of method and mobile terminal for positioning calibration |
| CN108769668A (en) * | 2018-05-31 | 2018-11-06 | 歌尔股份有限公司 | Method for determining position and device of the pixel in VR display screens in camera imaging |
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