WO2018058693A1

WO2018058693A1 - Video image displaying method capable of preventing user from feeling dizzy

Info

Publication number: WO2018058693A1
Application number: PCT/CN2016/101419
Authority: WO
Inventors: 覃政
Original assignee: 北京蚁视科技有限公司
Priority date: 2016-10-01
Filing date: 2016-10-01
Publication date: 2018-04-05

Abstract

Provided is a video image displaying method capable of preventing a user from feeling dizzy. An image comprises a virtual character simulated at a first viewing angle of a viewer and an environment image. The method comprises the steps of: a) acquiring motion information of the virtual character; b) on the basis of the motion information, determining whether the virtual character has acceleration or not in the forward direction or backward direction, returning to step a) if the acceleration is zero, and performing step c) if the acceleration is not zero; c) rotating the environment image by a first angle towards a direction opposite to the acceleration direction of the virtual character, or rotating the viewing angle of the virtual character by a first angle towards the direction opposite to the acceleration direction of the virtual character, or zooming the environment image at a first rate by using a first origin point as the center, wherein the first angle and a first size are related to the acceleration, and the first origin point is a projection point obtained by projecting the center of a connecting line between the two eyes of the virtual character onto the environment image in the horizontal gaze direction of the virtual character; and d) presenting the environment image after the rotation in step c, and returning to step a).

Description

Video image display method for preventing user dizziness

Technical field

The present invention relates to a video image processing method, and more particularly to a method for image processing of a first-view game screen that is stunned to prevent a viewer from feeling dizzy.

Background technique

There are a lot of game users who are watching 3D movies in the first perspective, or playing 3D games, especially when playing CF, battlefield and other gun battle games, often because of nausea and vomiting, mainly because the brain accepts information from the eyes and ears. : When the eye sees the change of the surrounding scenery, it knows that it is exercising; the ear transmits the movement of the body to the brain through its internal position sensory. Under normal circumstances, these two aspects of information appear to the brain is consistent, the brain will use the information to control the body's next movement. But when playing games, the information transmitted by the eyes to the brain is moving fast, but the information transmitted by the position sensor of the ear to the brain is that the position has not changed, the acceleration is zero, and the coordinates have not changed, especially when the game is just beginning or during the game. Sudden acceleration or deceleration makes the player feel more dizzy.

Therefore, in order to achieve the effect of avoiding vertigo by the image processing of the game screen so that the human visual and the sensor transmit information to the brain, it is necessary to develop a posture capable of simply correcting the image capturing device and to solve the delay band due to the position sensory sensor. Image processing and display methods for visual effects problems.

Summary of the invention

It is an object of the present invention to provide a video image display method for preventing dizziness of a user, which achieves the effect of avoiding vertigo by performing image processing on the game screen to make the information transmitted by the human vision and the sensor to the brain consistent.

In order to achieve the above object, the present invention adopts the following technical solution: a video image display method for preventing dizziness of a user, the image including a virtual character simulated by a first perspective of a viewer and An environment image, the environment image being presented at a first perspective of the viewer, the method comprising the steps of:

a) collecting motion information of the current moment of the avatar;

b) judging whether the avatar has acceleration in the forward or backward direction for the motion information of the current moment obtained in step a), and if the acceleration is zero, returning to step a) re-acquisition; if the acceleration is not zero, then Go to step c);

c) rotating the environment image in a direction opposite to an acceleration direction of the avatar by a first angle, or rotating the angle of view of the avatar toward a direction opposite to an acceleration direction of the avatar by a first angle, or Centering on the first origin and scaling the environmental image at a first rate, wherein the first angle, the first size is related to the acceleration, and the first origin is a center connecting the virtual eyes Projecting a projection point on the environmental image in a horizontal line of sight direction of the virtual character;

d) Presenting the environment image after the rotation of step c, and returning to step a).

Preferably, if the avatar is detected to move forward in the step b), and the acceleration of the direction is greater than zero, that is, the avatar accelerates forward, the environmental image orientation above the horizon of the avatar's line of sight The upper rear of the virtual character is rotated by a first angle, and an environmental image below the horizon of the virtual character is rotated by a first angle toward a lower rear of the virtual character.

Preferably, if the avatar is detected to perform a back motion in the step b), and the acceleration of the direction is greater than zero, that is, the avatar accelerates backwards backward, the environment image orientation above the horizon of the avatar's line of sight The lower front of the virtual character is rotated by a first angle, and an environmental image below the horizon of the virtual character is rotated by a first angle toward an upper front of the virtual character.

Preferably, if the avatar is detected to move forward in the step b), and the acceleration of the direction is greater than zero, that is, the avatar accelerates forward, the angle of view of the avatar is rotated toward the lower rear. An angle.

Preferably, if the avatar is detected to perform a back motion in the step b), and the acceleration of the direction is greater than zero, that is, the avatar accelerates backwards backward, the angle of view of the avatar is rotated upward and backward. An angle.

Preferably, if the step VIII detects that the avatar moves forward, and the direction The acceleration is greater than zero, that is, the virtual character accelerates forward, and is centered on the first origin, and the environmental image is enlarged at a first rate.

Preferably, if the avatar is detected to perform the backward motion in the step b), and the acceleration of the direction is greater than zero, that is, the avatar accelerates backward backward, the first origin is centered, and the first The rate is reduced by the environment image.

Preferably, the first angle α satisfies the formula α=arcsin(a/g), where a is the acceleration of the avatar in the forward direction and g is the gravitational acceleration.

Preferably, the first angle α satisfies the formula α=ka, where a is the acceleration of the avatar in the forward direction and k is the rotation coefficient.

Preferably, the first rate v satisfies the formula v=k'a, where a is the acceleration of the avatar in the forward direction and k' is the scaling factor.

According to the present invention, an image display method for preventing a viewer from being dizzy solves the problem that the game character suddenly accelerates, decelerates, or changes the spatial position to the player during the game stage or during the game. To enable players to enter the game characters comfortably, especially for first-view games such as 3D games, CF and battlefield shootouts.

It is to be understood that the foregoing general descriptions

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive effort.

1 is a flow chart of an image display method for preventing viewers from being dizzy according to the present invention;

2 is a game environment image rotation display method in the case where a virtual character accelerates forward;

FIG. 3 is a diagram showing a method for rotating a game environment image when the virtual character is accelerated and retracted;

4 is a rotation method of a first angle of view of a virtual character in a case where a virtual character accelerates forward;

FIG. 5 is a method for rotating a first angle of view of a virtual character in a case where a virtual character accelerates backward;

6 is a game environment image scaling method in the case where a virtual character accelerates forward;

FIG. 7 is a game environment image scaling method in the case where the avatar is accelerated and retracted.

detailed description

Objects and functions of the present invention, and methods for achieving the objects and functions will be clarified by referring to the exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below, and may be implemented in various forms. The essence of the description is merely to assist those skilled in the relevant art to understand the specific details of the invention.

1 is a flowchart of a video image display method for preventing stun of a user, the image including a virtual character and an environment image simulated by a first perspective of a viewer, the environment image being the viewer's The first perspective angle is presented.

Fig. 2 schematically shows a first view image display effect. In FIG. 2, a virtual character 201 and an environmental image 202 simulated in a first perspective of a viewer are shown, the environmental image 202 being presented at a first viewing angle of the viewer. The environment image 202 may be a three-dimensional image or a two-dimensional image, such as a three-dimensional image effect presented by a 2D texture. The virtual character 201 is used to simulate the first view of the actual image viewer, with the line of sight of both eyes, i.e., the left eye line of sight range 205a and the right eye line of sight range 205b, shown schematically in the figure as a cone.

Referring back to FIG. 1, as shown in FIG. 1, a video image display method for preventing stun of a user according to the present invention includes the following steps:

In step 101, collecting motion information of the current moment of the avatar;

In step 102, it is determined whether the virtual character has acceleration in the forward or backward direction for the motion information of the current time obtained in step 101, if the acceleration is zero, then return to step 101; if the acceleration is not zero, then enter Step 103;

In step 103, the environment image is rotated by a first angle in a direction opposite to the virtual person acceleration direction, or the virtual person's angle of view is rotated by a first angle in a direction opposite to the virtual person acceleration direction. Or, centering on the first origin, and scaling the environment image at a first rate, wherein the first angle, the first size is related to the acceleration, and the first origin is to connect the virtual person's eyes The center of the projection is projected onto the projection point on the environment image in the horizontal line of sight direction of the avatar.

According to an embodiment of the invention, the first angle α satisfies the formula α=arcsin(a/g), where a is the acceleration of the game character and g is the gravitational acceleration.

According to another embodiment of the invention, the first angle α can also be obtained by the formula α=ka, where a is the acceleration of the game character and k is the rotation coefficient. k can be an empirical constant, which is obtained by the average effect of rotating simulation experiments by multiple or multiple people, with the viewer not producing dizziness.

According to another embodiment of the invention, the first rate v satisfies the formula v=k'a, where a is the acceleration of the avatar in the forward direction and k' is the scaling factor. k' can be an empirical constant, which is obtained by the average effect of zooming simulation experiments by multiple or multiple people, based on the fact that the viewer does not produce dizziness.

In step 104, the image rotated in step 103 is presented, and the process returns to step 101.

As shown in FIG. 2, a virtual character 201 and an environment image 202 simulated at a first perspective of the viewer are shown, the environment image 202 being presented at a first perspective of the viewer. According to an embodiment of the present invention, the motion information of the current moment of the avatar collected in step 102 in FIG. 1 is not 0, and the following two situations are included:

a) the avatar performs a forward motion, and the acceleration of the direction is greater than zero, that is, the avatar accelerates along the y-axis of the coordinate system 204 in FIG. 2(a);

b) the avatar performs a back motion, and the acceleration in the direction is greater than zero, that is, the avatar accelerates backward along the y-axis of the coordinate system 204 in FIG. 2(a);

According to an embodiment of the present invention, the image display methods for preventing the viewer from stuning the above three kinds of motion information are respectively:

a) rotating the environmental image 202 by a first angle α in a direction opposite to the acceleration direction of the avatar; or

b) rotating the viewing angle range 205 of the avatar 201 by a first angle α in a direction opposite to the acceleration direction of the avatar; or

c) centering on the first origin and scaling the ambient image at a first rate.

2 to 7 respectively show six embodiments of a method of rotating an environment image, a method of rotating a perspective of a virtual character, and a method of scaling an environment image when the avatar is advanced or retracted, and the acceleration is not zero.

Example 1

FIG. 2 is a diagram showing a method for displaying a rotation of a game environment image when the avatar is accelerated. As shown in FIG. 2(a): the avatar 201 and the environment image 202 are simulated by the viewer at a first angle of view, and the left-eye line-of-sight range 205a and the right-eye line-of-sight range 205b are line-of-sight ranges of both eyes of the avatar 201. When the avatar 201 accelerates along the y-axis negative direction of the coordinate system 204 with an acceleration 203 greater than zero, that is, the avatar 201 accelerates forward travel, in order to avoid viewer dizziness, as shown in FIG. 2(b), The environment image 202a above the horizon of the avatar is rotated toward the upper rear of the avatar 201 by a first angle α, and the environment image 202b below the horizon of the avatar is rotated toward the lower rear of the avatar by a first angle α. .

According to an embodiment of the invention, the first angle α satisfies the formula α=arcsin(a/g), where a is the acceleration of the avatar in the forward direction and g is the gravitational acceleration.

According to an embodiment of the invention, the first angle α satisfies the formula α=ka, where a is the acceleration of the avatar in the forward direction and k is the rotation coefficient. k can be an empirical constant, which is obtained by the average effect of rotating simulation experiments by multiple or multiple people, with the viewer not producing dizziness.

Example 2

FIG. 3 is a diagram showing a method for displaying a rotation of a game environment image when the avatar is accelerated. As shown in FIG. 3(a): the avatar 301 and the environment image 302 are simulated by the viewer at a first angle of view, and the left-eye line of sight range 305a and the right-eye line of sight range 305b are the line-of-sight ranges of the avatars 301. When the avatar 301 accelerates along the y-axis of the coordinate system 304 with an acceleration 303 greater than zero, that is, the avatar 301 accelerates backwards backwards, in order to avoid viewer dizziness, as shown in FIG. 3(b), The environment image 302a above the horizon of the avatar is rotated toward the lower rear of the avatar 301 by a first angle α, and the environment image 302b below the horizon of the avatar is rotated toward the upper rear of the avatar by a first angle α. .

According to an embodiment of the invention, the first angle α satisfies the formula α=arcsin(a/g), where a is the acceleration of the avatar in the backward direction and g is the gravitational acceleration.

According to an embodiment of the invention, the first angle α satisfies the formula α=ka, where a is the acceleration of the avatar in the backward direction and k is the rotation coefficient. k can be an empirical constant, which is obtained by the average effect of rotating simulation experiments by multiple or multiple people, with the viewer not producing dizziness.

Example 3

4 is a rotation method of a first perspective of a virtual character in the case where the virtual character accelerates forward; as shown in FIG. 4( a ): the virtual character 401 and the environment image 402 are simulated by the viewer with the first angle of view, and the left eye line of sight range The 405a and right eye line of sight range 405b are the line of sight range of the avatar 401 eyes. When the virtual character 401 accelerates along the y-axis negative direction of the coordinate system 404 with an acceleration 403 greater than zero, that is, the virtual character 401 accelerates forward travel, in order to avoid viewer dizziness, as shown in FIG. 4(b), The angle of view 402 of the avatar is rotated toward the lower rear of the avatar 401 by a first angle a.

Example 4

5 is a rotation method of a first angle of view of a virtual character when the avatar is accelerated; as shown in FIG. 5( a ): the avatar 501 and the environment image 502 are simulated by the viewer with the first angle of view, and the left eye line of sight range The 505a and right eye line of sight range 505b are the line of sight range of the avatar 501 eyes. When the avatar 501 accelerates along the y-axis of the coordinate system 504 with an acceleration 503 greater than zero, that is, the avatar 501 accelerates backwards backwards, in order to avoid viewer dizziness, as shown in FIG. 5(b), The angle 502 of the avatar is rotated toward the rear of the avatar 501 by a first angle α.

Example 5

6 is a game environment image scaling method in the case where the avatar accelerates forward: as shown in FIG. 6( a ): the avatar accelerates toward the environment image 603 with an acceleration a 604 greater than zero, in order to avoid viewer dizziness, as shown in FIG. 6 . In (b), the environmental image 601 can be centered at the first origin 602 and the ambient image 601 can be enlarged at a first rate. The first origin 602 is a projection of the center point A of the line connecting the left eye 601a and the right eye 601b of the avatar in the horizontal line of sight direction of the avatar onto the environment image 603 as shown in FIG. 6(a). point.

According to an embodiment of the invention, the first rate v satisfies the formula v=k'a, where a is the acceleration of the avatar in the forward direction and k' is the scaling factor. k' can be an empirical constant, which is obtained by the average effect of zooming simulation experiments by multiple or multiple people, based on the fact that the viewer does not produce dizziness.

Example 6

7 is a game environment image zooming method in the case where the avatar is accelerated backward: as shown in FIG. 7( a ): the avatar accelerates backward with the acceleration a 704 greater than zero away from the environment image 703, in order to avoid viewer dizziness, as shown in FIG. 7 . The environment image 701 may be centered at the first origin 702 in (b) and the ambient image 701 is enlarged at a first rate. The first origin 702 is a projection of the center point A of the line connecting the avatar left eye 701a and the right eye 701b in the horizontal line of sight direction of the avatar onto the environment image 703 as shown in FIG. 7(a). point.

According to an embodiment of the invention, the first rate v satisfies the formula v=k'a, where a is the acceleration of the avatar in the backward direction and k' is the scaling factor. k' can be an empirical constant, which is obtained by the average effect of zooming simulation experiments by multiple or multiple people, based on the fact that the viewer does not produce dizziness.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent changes or modifications made to the structures, features, and principles described in the claims of the present invention should be included in the present invention. Within the scope.

Claims

A video image display method for preventing vertigo of a user, the image including a virtual person and an environment image simulated by a first perspective of a viewer, the environment image being presented at a first angle of view of the viewer, the method comprising The following steps:

a) collecting motion information of the current moment of the avatar;

b) judging whether the avatar has acceleration in the forward or backward direction for the motion information of the current moment obtained in step a), and if the acceleration is zero, returning to step a) re-acquisition; if the acceleration is not zero, then Go to step c);

c) rotating the environment image in a direction opposite to an acceleration direction of the avatar by a first angle, or rotating the angle of view of the avatar toward a direction opposite to an acceleration direction of the avatar by a first angle, or Centering on the first origin and scaling the environmental image at a first rate, wherein the first angle, the first size is related to the acceleration, and the first origin is a center connecting the virtual eyes Projecting a projection point on the environmental image in a horizontal line of sight direction of the virtual character;

d) Presenting the environment image after the rotation of step c, and returning to step a).
The video image display method according to claim 1, wherein if the avatar is detected to move forward in the step b), and the acceleration of the direction is greater than zero, the virtual character accelerates forward. And the environment image above the horizon of the virtual character is rotated toward the upper rear of the virtual character by a first angle, and the environment image below the horizon of the virtual character is rotated by a first angle toward the lower rear of the virtual character.
The video image display method according to claim 1, wherein if the virtual character is detected to perform a back motion in the step b), and the acceleration in the direction is greater than zero, the virtual character accelerates backwards backwards. And the environment image above the horizon of the virtual character is rotated toward the lower front of the virtual character by a first angle, and the environment image below the horizon of the virtual character is rotated by a first angle toward the upper front of the virtual character.
The video image display method according to claim 1, wherein if the avatar is detected to move forward in the step b), and the acceleration of the direction is greater than zero, the virtual character accelerates forward. And the angle of view of the avatar is rotated toward the lower rear by a first angle.
The video image display method according to claim 1, wherein if the virtual character is detected to perform a back motion in the step b), and the acceleration in the direction is greater than zero, the virtual character accelerates backwards backwards. And the angle of view of the virtual character is rotated by a first angle toward the upper rear.
The video image display method according to claim 1, wherein if the avatar is detected to move forward in the step b), and the acceleration of the direction is greater than zero, the virtual character accelerates forward. And centering on the first origin and amplifying the environmental image at a first rate.
The video image display method according to claim 1, wherein if the virtual character is detected to perform a back motion in the step b), and the acceleration in the direction is greater than zero, the virtual character accelerates backwards backwards. And centering on the first origin and reducing the environmental image at a first rate.
The video image display method according to claim 1, wherein said first angle α satisfies a formula α=arcsin(a/g), wherein a is an acceleration of said virtual character in a forward direction, and g is Gravity acceleration.
A video image display method according to claim 1, wherein said first angle α satisfies a formula α = ka, wherein a is an acceleration of said virtual character in a forward direction, and k is a rotation coefficient.
The video image display method according to claim 1, wherein said first rate v satisfies a formula v=k'a, wherein a is an acceleration of said avatar in a forward direction, and k' is a scaling factor .