CN107462992B - Method and device for adjusting head-mounted display equipment and head-mounted display equipment - Google Patents
Method and device for adjusting head-mounted display equipment and head-mounted display equipment Download PDFInfo
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- CN107462992B CN107462992B CN201710691432.5A CN201710691432A CN107462992B CN 107462992 B CN107462992 B CN 107462992B CN 201710691432 A CN201710691432 A CN 201710691432A CN 107462992 B CN107462992 B CN 107462992B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0149—Head-up displays characterised by mechanical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0149—Head-up displays characterised by mechanical features
- G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
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Abstract
The embodiment of the invention discloses a method and a device for adjusting head-mounted display equipment and the head-mounted display equipment. The adjusting method of the head-mounted display device comprises the following steps: acquiring pupil position information of a user wearing the head-mounted display equipment; and adjusting the image center position of an image display source arranged in the head-mounted display equipment and the focus position of a built-in lens according to the pupil position information. The method synchronously adjusts the center position of the built-in image display source of the head-mounted display device and the focus position of the built-in lens according to the obtained pupil position information, improves the device adjusting mode, optimizes the display effect and enables users to have better use experience.
Description
Technical Field
The embodiment of the invention relates to an image equipment adjusting technology, in particular to a method and a device for adjusting head-mounted display equipment and the head-mounted display equipment.
Background
Currently, with the rapid development of virtual reality and augmented reality technologies, more and more consumers use virtual reality or augmented reality equipment for the fields of viewing, gaming, teaching or simulation, and the like. In order to make different users with different interpupillary distances have better viewing experience, the user is generally required to adjust the distance between the focal points of two lenses of the head-mounted display device when wearing the head-mounted display device, so that the distance between the focal points of the two lenses is matched with the interpupillary distance of the user.
In the prior art, the pupil distance of the head-mounted display device is usually adjusted manually, and a user changes the focal position of a lens by shifting a pupil distance adjusting mechanism on the display device, so that the distance between two groups of lenses is adjusted to be matched with the pupil distance of eyes of the user. Or shooting the positions of the inner canthus and the outer canthus of the eyes of the user by using a camera, roughly estimating the approximate distance of the pupil of the user, and then automatically adjusting the positions of the focal lengths of the two lenses.
However, the manual adjustment precision is not high enough, and effective adjustment is difficult to achieve for some special users; according to the positions of the outer canthus and the inner canthus of the tested user, the error between the distance of the pupil distance of two eyes and the focal point of the automatic adjusting lens is roughly calculated, and the error between the distance and the actual pupil distance of the user is larger. In addition, the two modes are only to physically adjust the position of the lens, so that the focal point of the adjusted lens is not coincident with the central point of the picture of the display source, the picture seen by a user is distorted, and the watching effect of the user is influenced.
Disclosure of Invention
The embodiment of the invention provides a method and a device for adjusting a head-mounted display device and the head-mounted display device, which are used for improving the device adjusting mode, optimizing the display effect and enabling a user to have better use experience.
In a first aspect, an embodiment of the present invention provides an adjusting method for a head-mounted display device, where the method includes:
acquiring pupil position information of a user wearing the head-mounted display equipment;
and adjusting the image center position of an image display source arranged in the head-mounted display equipment and the focus position of a built-in lens according to the pupil position information.
In a second aspect, an embodiment of the present invention further provides an adjusting apparatus for a head-mounted display device, where the apparatus includes: a processor, a memory, and an adjustment program for a head-mounted display device stored on the memory and operable on the processor, the adjustment program for the head-mounted display device comprising:
the pupil position acquisition module is used for acquiring pupil position information of a user wearing the head-mounted display equipment;
and the position adjusting module is used for adjusting the positions of the image center position of an image display source arranged in the head-mounted display equipment and the focus of the built-in lens according to the pupil position information.
In a third aspect, an embodiment of the present invention further provides a head-mounted display device, including:
a built-in lens and an image display source;
the adjusting device of the head-mounted display equipment in any embodiment of the invention is also included, and the adjusting device comprises:
the camera is used for shooting pupil images;
and the motor is used for driving the lens to move.
According to the embodiment of the invention, the focal length of the lens of the head-mounted display device and the position of the central point of the image display source are adjusted according to the pupil position information, so that the problems that the lens of the head-mounted display device is not accurately adjusted and the focal point of the lens and the central point of the image of the display source are not coincident are solved, the adjustment mode of the device is improved, the display effect is optimized, and the user has better use experience effect.
Drawings
Fig. 1 is a flowchart of an adjusting method of a head-mounted display device according to a first embodiment of the present invention;
fig. 2 is a flowchart of an adjusting method of a head-mounted display device according to a second embodiment of the present invention;
fig. 3 is a flowchart of an adjusting method of a head-mounted display device according to a third embodiment of the present invention;
fig. 4 is a flowchart of an adjusting method of a head mounted display device according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of an adjustment procedure of a head-mounted display device in the fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of an adjusting method of a head-mounted display device according to an embodiment of the present invention, where the embodiment is applicable to a head-mounted display device adjusting situation, and the method may be executed by an adjusting apparatus of the head-mounted display device, and the apparatus may be implemented in a software and/or hardware manner. As shown in fig. 1, the method specifically includes the following steps:
and S110, acquiring pupil position information of a user wearing the head-mounted display equipment.
The pupil position information is the distance between the pupils of the two eyes of the user wearing the head-mounted display device. Generally, different users wear the head-mounted display device to have different visual effects, and the head-mounted display device is adaptively adjusted according to the pupil distance of each user to achieve the optimal visual effect. There are various manners of acquiring the pupil position information, which is not limited in this embodiment of the present invention.
And S120, adjusting the image center position of an image display source arranged in the head-mounted display equipment and the focus position of a built-in lens according to the pupil position information.
The image display sources, namely the two display areas similar to a circle, can be display areas provided by one or two display screen devices, are bilaterally symmetrical relative to a central point in the whole head-mounted display device, and are divided into a left image display source and a right image display source, the image central points of the left image display source and the right image display source are respectively the image central point of the left image display source and the image central point of the right image display source, and the image central points can be the central point of the display source device or can deviate from the central point of the device.
According to the pupil position information, the position of the image center point of the built-in image display source of the head-mounted display equipment and the position of the focus of the built-in lens are adjusted, then the distance between the focus positions of the left lens and the right lens and the image center point of the left image display source and the image center point of the right image display source is adjusted, so that the pupil center point of the human eye and the focus of the lens and the center point of the picture of the image display source on the same side are on the same straight line, namely the pupil center point of the left eye and the focus of the left lens and the image center point of the left image display source are on the same straight line, and the pupil center point of the right eye and the focus of the right lens and the image center point of the right image display source are on the same straight line, thus, each user can
According to the technical scheme, the left and right image center point positions of the built-in image display source of the head-mounted display device and the focus position of the built-in lens are adjusted according to the pupil position information, the problem that the lens focus and the image center point of the display source are not coincident is solved, the image seen by a user is distorted, and the viewing effect is poor, so that the head-mounted display device can adapt to the pupil distance of different users, is suitable for more users, and brings better experience and reduces the image distortion for viewing.
Example two
Fig. 2 is a flowchart of an adjusting method for a head-mounted display device according to a second embodiment of the present invention, where the embodiment is optimized on the basis of the foregoing embodiment, specifically, the method for acquiring pupil position information of a user wearing the head-mounted display device is optimized as follows: acquiring a pupil image of a user shot by a camera; and identifying the pupil image to acquire the pupil position information. Identifying the pupil image to acquire the pupil position information, and further optimizing the pupil position information as follows: identifying a pupil position of a pupil center point in the pupil image; and calculating the pupil distance between the two pupils according to the pupil position and a preset standard pupil image. Referring to fig. 2, the method specifically includes:
and S210, acquiring a pupil image of the user shot by the camera.
The head-mounted display device is provided with a camera, and a small infrared diode is embedded beside or inside a lens of the head-mounted display device. When the infrared diode starts working and emits infrared light, the camera starts working, pictures of the whole eyes are shot, and pupil images of a user wearing the head-mounted display device are obtained.
Preferably, before acquiring the pupil image, when the head-mounted display system is in a normal power-on state, the system first needs to detect whether a user wears the display device, and if not, the system does not perform any operation; if the fact that the user wears the head-mounted display device is detected, an image display source of the head-mounted display device prompts the user to watch the display picture. The infrared diode starts working and emits infrared light, and then the infrared camera starts working to shoot the picture of the whole eyes. Whether the user wears the display device is detected through a sensor (such as a light distance sensor or a gravity sensor) on the head-mounted display device.
And S220, identifying the pupil position of the pupil center point in the pupil image.
The characteristic that the pupil reflects infrared rays is utilized to obtain the position information of the pupil, when the infrared camera shoots, an eye picture shot by the infrared camera has a bright spot, and the central point of the bright spot is the central point of the pupil of the eye. The head-mounted display device system stores an image recognition algorithm for recognizing the position information of the bright spot in the acquired pupil image, namely the position of the pupil center point. The embodiment of the invention does not specifically limit the image recognition algorithm, as long as the effect of recognizing the pupil can be achieved.
And S230, calculating the pupil distance between the two pupils according to the pupil position and a preset standard pupil image.
The position information of the bright point in the picture is identified through an image identification algorithm controlled by the head-mounted display equipment system, and the pupil distance between the eyes of the current user can be calculated by comparing the information with preset standard picture information. The preset standard picture information marks the distance between the pupils of the two eyes corresponding to different pupil positions.
It should be noted here that if a single infrared diode and single camera ranging scheme is adopted, that is, a small infrared diode is embedded beside or inside the left or right eyeglass, and only one camera is correspondingly arranged, the obtained pupil distance of the user is 2 times of the distance between the pupil of the single eye and the central point of the image display source; if the left lens and the right lens of the system are both provided with the infrared diode and the infrared camera, the current user pupil distance obtained by the method is the sum of the distances from the left pupil and the right pupil to the central point of the image display source.
And S240, adjusting the image center position of an image display source arranged in the head-mounted display equipment and the focus position of a built-in lens according to the pupil position information.
According to the technical scheme of the embodiment, the distance between two pupils in the pupil image is identified and calculated through the pupil image of the user shot by the camera, so that the focal point of the lens and the central point of the image display source can be accurately adjusted to match the characteristics of the pupil distance of the current user, and the user has the best visual experience.
EXAMPLE III
Fig. 3 is a flowchart of an adjusting method for a head-mounted display device according to a third embodiment of the present invention, where the third embodiment of the present invention is optimized on the basis of the foregoing embodiments, and specifically, the center position of an image display source and the focal position of a built-in lens in the head-mounted display device are adjusted according to the pupil position information, and the third embodiment of the present invention is specifically optimized as follows: taking the current pupil distance as the pupil position information, and comparing the current pupil distance with the historical pupil distance; if the current pupil distance is different from the historical pupil distance, the positions of the centers of the left and right images of the lens and the image display source are adjusted according to the difference value of the current pupil distance and the historical pupil distance, so that the center of the pupil is on the same straight line with the focus of the lens on the same side and the center of the image display source on the same side. Referring to fig. 3, the method specifically includes:
and S310, acquiring a pupil image of the user shot by the camera.
And S320, identifying the pupil position of the pupil center point in the pupil image.
And S330, calculating the pupil distance between the two pupils according to the pupil position and a preset standard pupil image.
And S340, comparing the current pupil distance serving as the pupil position information with the historical pupil distance, namely judging whether the current pupil distance is equal to the historical pupil distance, if so, ending the process, and if not, executing the step S350.
The current pupil distance is calculated by using the head-mounted display equipment; the historical pupil distance is calculated when the head-mounted display device is used last time, and the lens focal point and the left and right central points of the image display source are adjusted according to the pupil distance. If the head-mounted display device is not used by the user, the historical pupil distance of the head-mounted display device is 65 mm, which is the distance initially set by the head-mounted display device. Comparing the current pupil distance with the historical pupil distance, if the current pupil distance is the same as the historical pupil distance, maintaining the current situation of the head-mounted display equipment, and not adjusting the focus of the lens and the left and right central points of the image display source; if the current pupil distance is not equal to the historical pupil distance, step S350 is performed.
And S350, if the current pupil distance is different from the historical pupil distance, adjusting the positions of the centers of the lens and the left and right images of the image display source according to the difference value of the current pupil distance and the historical pupil distance, so that the center of the pupil, the focus of the lens on the same side and the center of the image display source on the same side are on the same straight line.
And if the current pupil distance is different from the historical pupil distance, adjusting the lens focal point and the left and right central points of the image display source. According to the bilateral symmetry of human eyes, the lens of the head-mounted display device and the image display source are also bilaterally symmetric. On the basis of the left and right central points of the historical lens focal position and the image of the image display source, the left and right central points of the lens focal position and the image of the image display source are adjusted according to the difference between the current pupil distance and the historical pupil distance, and the distance of the difference is moved by half. Finally, the center point of the left eye pupil and the focus of the left lens are in a straight line with the center point of the left side of the image display source image, and the center point of the right eye pupil and the focus of the right lens are in a straight line with the center point of the right side of the image display source image.
Further, the position of the focus of the built-in lens of the head-mounted display device is adjusted by driving a motor connected with the built-in lens in the head-mounted display device to adjust the position of the built-in lens according to the pupil position information.
Specifically, when the left lens needs to move a certain distance to a central point close to the image display source, the system controls the built-in motor to work (knowing the moving distance of the lens in the horizontal direction when the built-in motor of the system rotates for one circle in advance), so that the built-in motor rotates clockwise (anticlockwise) by a corresponding number of revolutions. Illustratively, when the left lens moves i mm close to the center point of the image display source, the system controls the built-in motor to work (when the built-in motor of the system rotates one circle, the lens moves m mm in the horizontal direction), and the built-in motor rotates i/m turn clockwise (anticlockwise). When the left lens moves i mm away from the central point of the image display source, the system controls the built-in motor to work (when the built-in motor of the system rotates for one circle, the lens moves m mm in the horizontal direction), and the built-in motor rotates anticlockwise (clockwise) for i/m revolutions. While the right lens is adjusted in the same manner as described above. The process realizes that the left and right central points of the image display source are respectively on the same straight line with the lens focus on the same side and the user pupil central point on the same side. In a specific implementation scheme, the left lens and the right lens can be driven by the same motor to drive two groups of lenses, and the two motors can also be used for driving two groups of lenses respectively.
The technical scheme of this embodiment, after comparing present pupil distance and historical pupil distance, according to the positional information of pupil to driving motor's mode automatically regulated wears the built-in lens of display device, can improve position control's accuracy, brings the best experience of watching for the user, is applicable to some special crowds of inconvenient operation moreover, does benefit to the use widely of more user groups.
Example four
Fig. 4 is a flowchart of an adjusting method of a head-mounted display device according to a fourth embodiment of the present invention, where this embodiment is optimized on the basis of the foregoing embodiments, specifically, if the current pupil distance is different from the historical pupil distance, the positions of the centers of the left and right images of the lens and the image display source are adjusted according to the difference between the current pupil distance and the historical pupil distance, so that the center of the pupil and the focus of the lens on the same side and the center of the image display source on the same side are on the same straight line, and the optimization is specifically: when the current pupil distance is greater than the historical pupil distance, respectively translating the lens and the center points of the left and right images of the image display source by distances corresponding to the difference value towards the direction far away from the center point of the image display source; and when the current pupil distance is smaller than the historical pupil distance, respectively translating the lens and the center points of the left and right images of the image display source to the direction close to the center point of the image display source by distances corresponding to the difference value. As shown in fig. 4, the method comprises the following specific steps:
and S410, acquiring the pupil image of the user shot by the camera.
And S420, identifying the pupil position of the pupil center point in the pupil image.
And S430, calculating the pupil distance between the two pupils according to the pupil position and a preset standard pupil image.
S440, comparing the current pupil distance serving as the pupil position information with the historical pupil distance, namely judging whether the current pupil distance is greater than the historical pupil distance, and if so, executing the step S450; if not, go to step S460.
After comparing the current pupil distance with the historical pupil distance, if the current pupil distance is greater than the historical pupil distance, executing step S450; if the current pupil distance is smaller than the historical pupil distance, step S460 is executed.
S450, respectively translating the lens and the center points of the left and right images of the image display source to the direction far away from the center point of the image display source by the distance corresponding to the difference value.
If the current pupil distance is greater than the historical pupil distance, the left lens and the right lens which are arranged in the head-mounted display device need to be moved to positions far away from the image display source central point, and the moving distance is one half of the difference value between the current pupil distance and the historical pupil distance. Accordingly, the left and right center points of the image display source are also moved by the same distance to positions distant from the center point of the image display source.
And S460, respectively translating the central points of the left and right images of the lens and the image display source to the direction close to the central point of the image display source by distances corresponding to the difference.
If the current pupil distance is smaller than the historical pupil distance, the left lens and the right lens which are arranged in the head-mounted display device need to be moved to the positions close to the central point of the image display source, and the moving distance is one half of the difference value between the historical pupil distance and the current pupil distance. Accordingly, the left and right center points of the image display source are also moved by the same distance to a position close to the center point of the image display source.
Specifically, the adjustment of the position of the left and right center points of the image display source of the head-mounted display device is realized by the following steps:
when the image display source is a complete whole (such as a display screen), the central points of the left and right images cannot be close to or far away from the central point of the image display source by physically adjusting the movement of the image display source; in this case, software is required to adjust the left and right picture pixels of the image display source to realize the left and right movement or the up and down movement of the center point of the image display source.
When initializing the head-mounted display device, the length and width of the effective pixels of the image display source and the resolution of the image display source are known, and then the distance of the length of each pixel in the length direction and the distance of the width of each pixel in the width direction can be calculated. When the distance that the center point of the left and right display source images needs to move away from or close to the center point of the image display source is obtained through calculation, the fact that the left and right center points of the image display source need to move away from or close to the center point of the image display source for a plurality of pixel points can be known. For example, assuming that the distance of each pixel in the long direction is a millimeter, the distance in the wide direction is b millimeters, and the left center point of the image display source is close to the image display source center point by i millimeters, the system controller moves the left center point of the image display source by i/a pixel points to the position close to the image display source center point; when the left center point of the image display source is far away from the center point of the image display source by i millimeters, the system controller moves the left center point of the image display source by i/a pixel points to the center point far away from the image display source; similarly, the right central point of the image display source adopts the same adjusting mode to realize the left-right movement of the right picture of the image display source. The same movement principle is adopted according to the actual required movement distance in the width direction of the picture. Meanwhile, the moving direction and the moving distance of the lens are synchronously adjusted, so that the left and right central points of the image display source, the focal point of the lens and the pupil central point of the user are on the same straight line.
Furthermore, if the image display sources are two display screens which can move leftwards/rightwards independently, the positions of the two display sources can be adjusted physically, so that the central points of the left and right image display source images are respectively on the same straight line with the focal point of the lens on the same side and the central point of the pupil on the same side of the user with different pupil distances.
Preferably, when the system is in an initial state, the image center point of the left and right image display sources and the image focus of the lens on the same side are set to coincide, then the left lens and the left image display source are taken as a whole, the whole always keeps the coincidence of the lens focus and the image center point of the display source, the system controls the built-in motor to realize the horizontal movement of the left module to the left or the right, so that the coincident point of the whole and the pupil center point of the left eye are on the same straight line, and the focus of the pupil center point of the left eye and the image center point of the left lens and the image display source are on the same straight line. Similarly, the corresponding movement of the whole module consisting of the right lens and the right image display source can be realized; thereby, the whole adjusting process of the head-mounted display device is realized.
According to the embodiment of the invention, the center points of the images of the lens and the left and right image display sources are respectively moved to the direction far away from or close to the center point of the image display source by comparing the current pupil distance with the historical pupil distance, so that the pupil center point and the focus of the lens on the same side of the pupil and the image display source image center point on the same side are on the same straight line, a user has the best use experience, and the adjustment mode of the head-mounted display equipment is improved.
EXAMPLE five
An embodiment of the present invention provides an adjusting device for a head-mounted display device, where the device includes: a processor, a memory, and a tuning program for a head mounted display device stored on the memory and executable on the processor. Fig. 5 is a schematic structural diagram of an adjustment procedure of a head-mounted display device according to a fifth embodiment of the present invention, and as shown in fig. 5, the adjustment procedure of the head-mounted display device includes:
a pupil position obtaining module 510, configured to obtain pupil position information of a user wearing the head-mounted display device;
and a position adjusting module 520, configured to perform position adjustment on an image center position of an image display source and a focus of a built-in lens, which are built in the head-mounted display device, according to the pupil position information.
Further, the pupil position obtaining module 510 specifically includes:
a pupil image acquisition unit for acquiring a pupil image of a user photographed by a camera;
the identification unit is used for identifying the pupil position of the pupil center point in the pupil image;
and the calculating unit is used for calculating the pupil distance between the two pupils according to the pupil position and a preset standard pupil image.
Further, the position adjusting module 520 specifically includes:
a comparison unit, configured to compare a current pupil distance as the pupil position information with a historical pupil distance;
and the position adjusting unit is used for adjusting the positions of the centers of the left and right images of the lens and the image display source according to the difference value between the current pupil distance and the historical pupil distance when the current pupil distance is different from the historical pupil distance, so that the center of the pupil and the focus of the lens on the same side and the center of the image display source on the same side are on the same straight line.
Further, the position adjusting unit is configured to:
when the current pupil distance is greater than the historical pupil distance, respectively translating the lens and the center points of the left and right images of the image display source by distances corresponding to the difference value towards the direction far away from the center point of the image display source;
and when the current pupil distance is smaller than the historical pupil distance, respectively translating the lens and the center points of the left and right images of the image display source to the direction close to the center point of the image display source by distances corresponding to the difference value.
Further, the position adjusting unit may be further configured to:
adjusting the position of the image center point of the lens or the image display source so that the focal point of the lens coincides with the image center point of the image display source on the same side;
and adjusting the positions of the central points of the lens and the left and right images of the image display source synchronously according to the difference value of the current pupil distance and the historical pupil distance.
Further, the position adjusting unit adjusts the pixel display position of an image display source built in the head-mounted display device according to the pupil position information to adjust the image center position; or
And according to the pupil position information, moving the position of an image display source arranged in the head-mounted display equipment relative to the head-mounted display equipment so as to adjust the central position of the image.
Further, the adjustment device number of the head mounted display apparatus includes:
and the driving module is used for driving a motor connected with the built-in lens in the head-mounted display device to adjust the position of the built-in lens according to the pupil position information, so that the focus of the built-in lens is adjusted.
The adjusting device of the head-mounted display equipment provided by the embodiment of the invention can be used for executing the adjusting method of the head-mounted display equipment provided by any embodiment of the invention, has corresponding functional modules and realizes the same beneficial effects.
EXAMPLE six
An embodiment of the present invention further provides a head-mounted display device, including:
a built-in lens and an image display source; the adjusting device of the head-mounted display equipment in any embodiment of the invention is further included, when the pupil distance is obtained according to the shot pupil image, the positions of the built-in lens of the head-mounted display equipment and the image center point of the image display source are correspondingly adjusted; and comprises: the camera is used for shooting pupil images; and the motor is used for driving the lens to move.
It will be apparent to those skilled in the art that the modules or steps of the invention described above may be implemented by an apparatus as described above. Alternatively, the embodiments of the present invention may be implemented by programs executable by a computer device, so that they can be stored in a storage device and executed by a processor, where the programs may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.; or separately as individual integrated circuit modules, or as a single integrated circuit module from a plurality of modules or steps within them. Thus, the present invention is not limited to any specific combination of hardware and software.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (5)
1. An adjustment method for a head-mounted display device, comprising:
acquiring pupil position information of a user wearing the head-mounted display equipment, wherein the pupil position information comprises a pupil image of the user shot by a camera, identifying a pupil position of a pupil center point in the pupil image, and calculating a pupil distance between two pupils according to the pupil position and a preset standard pupil image;
according to the pupil position information, adjusting the image center position of an image display source arranged in the head-mounted display device and the focus position of a built-in lens, specifically: according to the pupil position information, driving a motor connected with the built-in lens in the head-mounted display device to adjust the position of the built-in lens, so as to adjust the focus of the built-in lens; the image display sources are two display screens which move leftwards or rightwards independently, and the positions of the two display sources are adjusted physically, so that the central points of the left and right image display source images are respectively on the same straight line with the focal point of the built-in lens on the same side and the central point of the pupil on the same side of a user with different interpupillary distances;
according to the pupil position information, adjusting the position of the image center position of the image display source arranged in the head-mounted display device and the focus of the built-in lens further comprises:
taking the current pupil distance as the pupil position information, comparing the pupil position information with historical pupil distances, wherein the historical pupil distances are calculated when the head-mounted display equipment is used last time, and adjusting the lens focal point and the left and right central points of the image display source according to the pupil distances;
if the current pupil distance is different from the historical pupil distance, the positions of the centers of the left and right images of the lens and the image display source are adjusted according to the difference value of the current pupil distance and the historical pupil distance, so that the center of the pupil is on the same straight line with the focus of the lens on the same side and the center of the image display source on the same side.
2. The method of claim 1, wherein adjusting the position of the center point of the lens and the left and right images of the image display source according to the difference between the current pupil distance and the historical pupil distance comprises:
when the current pupil distance is greater than the historical pupil distance, respectively translating the lens and the center points of the left and right images of the image display source by distances corresponding to the difference value towards the direction far away from the center point of the image display source;
and when the current pupil distance is smaller than the historical pupil distance, respectively translating the lens and the center points of the left and right images of the image display source to the direction close to the center point of the image display source by distances corresponding to the difference value.
3. The method of claim 1, wherein adjusting the position of the center point of the lens and the left and right images of the image display source according to the difference between the current pupil distance and the historical pupil distance comprises:
adjusting the position of the image center point of the lens or the image display source so that the focal point of the lens coincides with the image center point of the image display source on the same side;
and adjusting the positions of the central points of the lens and the left and right images of the image display source synchronously according to the difference value of the current pupil distance and the historical pupil distance.
4. An adjustment apparatus of a head-mounted display device, the apparatus further comprising: a processor, a memory, and an adjustment program for a head-mounted display device stored on the memory and operable on the processor, wherein the adjustment program for the head-mounted display device comprises:
the pupil position acquisition module is used for acquiring pupil position information of a user wearing the head-mounted display equipment, and comprises the steps of acquiring a pupil image of the user shot by a camera, identifying the pupil position of a pupil center point in the pupil image, and calculating the pupil distance between two pupils according to the pupil position and a preset standard pupil image;
a position adjusting module, configured to adjust an image center position of an image display source and a focal position of a built-in lens that are built in the head-mounted display device according to the pupil position information, and specifically configured to: according to the pupil position information, driving a motor connected with the built-in lens in the head-mounted display device to adjust the position of the built-in lens, so as to adjust the focus of the built-in lens; the image display sources are two display screens which move leftwards or rightwards independently, and the positions of the two display sources are adjusted physically, so that the central points of the left and right image display source images are respectively on the same straight line with the focal point of the built-in lens on the same side and the central point of the pupil on the same side of a user with different interpupillary distances; and is also used for: taking the current pupil distance as the pupil position information, comparing the pupil position information with historical pupil distances, wherein the historical pupil distances are calculated when the head-mounted display equipment is used last time, and adjusting the lens focal point and the left and right central points of the image display source according to the pupil distances; if the current pupil distance is different from the historical pupil distance, the positions of the centers of the left and right images of the lens and the image display source are adjusted according to the difference value of the current pupil distance and the historical pupil distance, so that the center of the pupil is on the same straight line with the focus of the lens on the same side and the center of the image display source on the same side.
5. A head-mounted display device comprising a built-in lens and an image display source, further comprising an adjustment apparatus of the head-mounted display device of claim 4, and comprising:
the camera is used for shooting pupil images;
and the motor is used for driving the lens to move.
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