CN103902179A - Interaction method and device - Google Patents
Interaction method and device Download PDFInfo
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- CN103902179A CN103902179A CN201210587416.9A CN201210587416A CN103902179A CN 103902179 A CN103902179 A CN 103902179A CN 201210587416 A CN201210587416 A CN 201210587416A CN 103902179 A CN103902179 A CN 103902179A
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Abstract
The embodiment of the invention provides an interaction method and device, and relates to the field of communications. According to the interaction method and device, an image displayed by a screen can be automatically zoomed in or zoomed out according to the change of the distance between human eyes and the screen. The interaction method comprises the steps that the position of an optic center and the distance between the human eyes and the screen are obtained, wherein the optic center is the central point of a visual field of the human eyes in the screen; if the distance between the human eyes and the screen is shortened, the image displayed by the screen is zoomed in with the position of the optic center being the central point; if the distance between the human eyes and the screen is prolonged, the image displayed by the screen is zoomed out with the position of the optic center being the central point.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of exchange method and device.
Background technology
Universal along with the electronic product such as computer, mobile phone, and the improving constantly of people's living standard, people need to obtain more information in life from electronic product, and therefore, increasing people pays close attention to the convenience that electronic product uses more.
In prior art, people adopt the mode of multi-point touch or adjustment screen resolution to zoom in or out to the image of screen display conventionally.On the one hand, the image of screen display if the mode of employing multi-point touch zooms in or out, for deformity of limbs personage, cannot complete this operation, simultaneously, adopt the mode of multi-point touch only can zoom in or out Image Display interface, and cannot zoom in or out to the main interface of system, video display interface and game display interface etc.; On the other hand, the mode of adjusting screen resolution if adopt zooms in or out the image of screen display, and during due to adjustment screen resolution, need to manually select and arrange, therefore inconvenient operation, user's experience sense is poor.
Summary of the invention
Embodiments of the invention provide a kind of exchange method and device, can automatically zoom in or out to the image of screen display by the variation of distance between human eye and screen.
For achieving the above object, embodiments of the invention adopt following technical scheme:
According to a first aspect of the invention, a kind of exchange method, comprising:
Obtain the distance between position and human eye and the screen of optic centre, wherein, the central point of the visual field that described optic centre is described human eye in described screen;
If the distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, if the distance between described human eye and described screen increases, centered by the position of described optic centre, put the image that dwindles described screen display.
In the possible implementation of the first of first aspect, described in obtain the position of optic centre method specifically comprise:
Launch the first detectable signal to described human eye;
Receive the second detectable signal from described human eye, described the second detectable signal is the reflected signal of described human eye to described the first detectable signal;
Obtain the pupil center location of described human eye according to described the first detectable signal and described the second detectable signal, to obtain the position of described optic centre according to described pupil center location.
In the possible implementation of the second of first aspect, described in obtain the distance between human eye and screen method specifically comprise:
Launch described the first detectable signal to described human eye;
Receive described the second detectable signal from described human eye, described the second detectable signal is the reflected signal of described human eye to described the first detectable signal;
Obtain the distance between described human eye and described screen according to described the first detectable signal and described the second detectable signal.
In conjunction with the possible implementation of the first of aforesaid first aspect or first aspect to any implementation in the possible implementation of the second, in the third possible implementation, if the distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, specifically comprises:
If the distance between described human eye and described screen is decreased to the first thresholding, point centered by the position of described optic centre, arranges the resolution of the described screen corresponding with described human eye and distance between described screen.
In conjunction with the possible implementation of the first of aforesaid first aspect or first aspect to any implementation in the possible implementation of the second, in the 4th kind of possible implementation, if the distance between described human eye and described screen increases, centered by the position of described optic centre, put the image that dwindles described screen display, specifically comprise:
If the distance between described human eye and described screen increases to the second thresholding, point centered by the position of described optic centre, arranges the resolution of the described screen corresponding with described human eye and distance between described screen.
In conjunction with any implementation in the possible four kinds of possible implementations of implementation to the of the first of aforesaid first aspect or first aspect, in the 5th kind of possible implementation, after distance between described position and human eye and the screen that obtains optic centre, described method also comprises:
Judge whether the distance between described human eye and described screen is more than or equal to the first predetermined threshold value, and whether distance between described human eye and described screen is less than or equal to the second predetermined threshold value;
Wherein, if the distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, if the distance between described human eye and described screen increases, the image that point dwindles described screen display centered by the position of described optic centre comprises:
Distance between described human eye and described screen is more than or equal to described the first predetermined threshold value, and when the distance between described human eye and described screen is less than or equal to described the second predetermined threshold value, if the distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, if the distance between described human eye and described screen increases, centered by the position of described optic centre, put the image that dwindles described screen display.
In conjunction with the 5th kind of possible implementation of aforesaid first aspect or first aspect, in the 6th kind of possible implementation, in the time that the distance between described human eye and described screen is less than described the first predetermined threshold value, if the distance between described human eye and described screen reduces, do not amplify the image of described screen display.
In conjunction with the 5th kind of possible implementation of aforesaid first aspect or first aspect, in the 7th kind of possible implementation, in the time that the distance between described human eye and described screen is greater than described the second predetermined threshold value, if the distance between described human eye and described screen increases, do not dwindle the image of described screen display.
According to a second aspect of the invention, a kind of interactive device, comprising:
Processor, for obtaining the distance between position and human eye and the screen of optic centre, wherein, described optic centre is the visual field of the described human eye central point in described screen, and the position of described optic centre is sent to storer, if and distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, if the distance between described human eye and described screen increases, centered by the position of described optic centre, put the image that dwindles described screen display;
Described storer, for storing the position of described optic centre;
Described screen, for showing image.
In the possible implementation of the first of second aspect, also comprise:
Transmitter, for launching the first detectable signal to described human eye;
Receiver, for receiving the second detectable signal from described human eye, described the second detectable signal is the reflected signal of described human eye to described the first detectable signal.
In conjunction with the possible implementation of the first of aforesaid second aspect or second aspect, in the possible implementation of the second, described processor, specifically for obtain the pupil center location of described human eye according to described the first detectable signal and described the second detectable signal, to obtain the position of described optic centre according to described pupil center location.
In conjunction with the possible implementation of the first of aforesaid second aspect or second aspect, in the third possible implementation, described processor, specifically for obtaining the distance between described human eye and described screen according to described the first detectable signal and described the second detectable signal.
In conjunction with the possible implementation of the first of aforesaid second aspect or second aspect to any implementation in the third possible implementation, in the 4th kind of possible implementation, described processor, if be decreased to the first thresholding or increase to the second thresholding specifically for the distance between described human eye and described screen, point centered by the position of described optic centre, arranges the resolution of the described screen corresponding with described human eye and distance between described screen.
In conjunction with any implementation in the possible four kinds of possible implementations of implementation to the of the first of aforesaid second aspect or second aspect, in the 5th kind of possible implementation, described processor, also for judging whether the distance between described human eye and described screen is more than or equal to the first predetermined threshold value, and whether distance between described human eye and described screen is less than or equal to the second predetermined threshold value;
Described processor, be more than or equal to described the first predetermined threshold value specifically for the distance between described human eye and described screen, and when the distance between described human eye and described screen is less than or equal to described the second predetermined threshold value, if the distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, if the distance between described human eye and described screen increases, centered by the position of described optic centre, put the image that dwindles described screen display.
In conjunction with the 5th kind of possible implementation of aforesaid second aspect or second aspect, in the 6th kind of possible implementation, described processor, also in the time that the distance between described human eye and described screen is less than described the first predetermined threshold value, if the distance between described human eye and described screen reduces, do not amplify the image of described screen display.
In conjunction with the 5th kind of possible implementation of aforesaid second aspect or second aspect, in the 7th kind of possible implementation, described processor, also in the time that the distance between described human eye and described screen is greater than described the second predetermined threshold value, if the distance between described human eye and described screen increases, do not dwindle the image of described screen display.
A kind of exchange method and device that the embodiment of the present invention provides, by obtaining the distance between position and human eye and the screen of optic centre, wherein, optic centre is the visual field of the human eye central point in screen, then,, if the distance between human eye and screen reduces, centered by the position of optic centre, put the image that enlarging screen shows, if the distance between human eye and screen increases, centered by the position of optic centre, put the image that dwindles screen display.By this scheme, interactive device can zoom in or out the image of screen display automatically according to the variation of distance between human eye and screen point centered by the position of optic centre, the problem that cannot complete multi-point touch operation and screen resolution inconvenience is manually set to solve deformity of limbs personage, thereby, by the interaction technique between this human eye and screen, can facilitate, clearly watch demonstration image so that obtain user.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The method flow diagram one of a kind of exchange method that Fig. 1 provides for the embodiment of the present invention;
The method flow diagram two of a kind of exchange method that Fig. 2 provides for the embodiment of the present invention;
The schematic diagram one of a kind of exchange method that Fig. 3 provides for the embodiment of the present invention;
The schematic diagram two of a kind of exchange method that Fig. 4 provides for the embodiment of the present invention;
The schematic diagram three of a kind of exchange method that Fig. 5 provides for the embodiment of the present invention;
The schematic diagram four of a kind of exchange method that Fig. 6 provides for the embodiment of the present invention;
The structural representation of the interactive device that Fig. 7 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
The embodiment of the present invention provides a kind of exchange method, as shown in Figure 1, comprising:
S101, interactive device obtain the distance between position and human eye and the screen of optic centre, wherein, and the central point of the visual field that optic centre is human eye in screen.
In the embodiment of the present invention, " visual field " of human eye is defined as human eye and fixedly watches the spatial dimension that can see when some attentively; The central point of the visual field that " optic centre " is defined as human eye in a plane, that is to say the central point in the plane that the visual field that optic centre is human eye is watched at human eye.
Exemplary, the interactive device that the embodiment of the present invention provides has the function of demonstration and the display interface that zooms in or out, when human eye watch the screen of interactive device shown go out image time, interactive device passes through distance measurement, can calculate the distance between position and human eye and the screen at human eye vision center, wherein, the central point in the screen that the visual field that optic centre described above is human eye is watched at human eye.
If the distance between S102 human eye and screen reduces, interactive device is put the image that enlarging screen shows centered by the position of optic centre, if the distance between human eye and screen increases, interactive device is put the image that dwindles screen display centered by the position of optic centre.
The exchange method that the embodiment of the present invention provides, if the distance between human eye and screen reduces, interactive device centered by the position of the optic centre that gets some the image of screen display is amplified, if the distance between human eye and screen increases, interactive device centered by the position of the optic centre that gets some the image of screen display is dwindled.
It should be noted that, the exchange method that the embodiment of the present invention provides, can set in advance the scheme how display image screen being zoomed in or out, for example, if the distance between human eye and screen often reduces 2 centimetres, interactive device is point centered by the position of the optic centre that gets, according to the magnification ratio setting, the image of screen display is once amplified, contrary, if 2 centimetres of the every increases of the distance between human eye and screen, interactive device is point centered by the position of the optic centre that gets, according to the scale down setting, the image of screen display is carried out to first-stage reduction.
Further, distance between human eye and screen described above reduces or the numerical value that increases is only exemplary explanation, the actual conditions of the technical scheme that this numerical value can provide according to the embodiment of the present invention in implementation process are chosen and are set, and the present invention does not limit.
Same, the concrete condition of the technical scheme that magnification ratio described above also can provide according to the embodiment of the present invention in implementation process set, and the present invention does not limit.
A kind of exchange method that the embodiment of the present invention provides, by obtaining the distance between position and human eye and the screen of optic centre, wherein, optic centre is the visual field of the human eye central point in screen, then,, if the distance between human eye and screen reduces, centered by the position of optic centre, put the image that enlarging screen shows, if the distance between human eye and screen increases, centered by the position of optic centre, put the image that dwindles screen display.By this scheme, interactive device can zoom in or out the image of screen display automatically according to the variation of distance between human eye and screen point centered by the position of optic centre, the problem that cannot complete multi-point touch operation and screen resolution inconvenience is manually set to solve deformity of limbs personage, thereby, by the interaction technique between this human eye and screen, can facilitate, clearly watch demonstration image so that obtain user.
Embodiment bis-
The embodiment of the present invention provides a kind of exchange method, as shown in Figure 2, comprising:
S201, interactive device are launched the first detectable signal to human eye.
Exemplary, interactive device can be launched the first detectable signal to human eye, is reflected back the second detectable signal corresponding to the first detectable signal afterwards to make human eye receive the first detectable signal.
Further, the eye movement tracer technique existing at present, refers to that position or the eyeball by measuring eye gaze point realized oculomotor tracking with respect to the motion of head.The method that the eye movement using is at present followed the trail of has a variety of, and wherein, the most frequently used is the positions that obtain eyes by video capture equipment without wound means; Having wound means to be included in embedding eye movement in eyes measures coil or uses microelectrode to trace electronystagmogram.
Further, the first detectable signal of interactive device transmitting can be infrared radiation signal, and this infrared radiation signal can be the sightless infrared ray of human eye.
S202, interactive device receive the second detectable signal from human eye, and the second detectable signal is the reflected signal of human eye to the first detectable signal.
After human eye receives the first detectable signal of interactive device transmitting, human eye will be reflected back the second detectable signal to interactive device, wherein, the second detectable signal be human eye to the first detectable signal the signal after the reflection of human eye eyeball.
Further, the second detectable signal that human eye reflexes to interactive device is that human eye eyeball produces after reflection the first detectable signal, therefore, the second detectable signal can be also infrared radiation signal, and this infrared radiation signal can be the sightless infrared ray of human eye.
S203, interactive device obtain the pupil center location of human eye according to the first detectable signal and the second detectable signal, to obtain the position of optic centre according to pupil center location.
In the embodiment of the present invention, " visual field " of human eye is defined as human eye and fixedly watches the spatial dimension that can see when some attentively, the central point of the visual field that " optic centre " is defined as human eye in a plane, that is to say the central point in the plane that the visual field that optic centre is human eye is watched at human eye.
Interactive device is by adjusting the power of the first detectable signal, particularly, can be for making the power of the first detectable signal carry out power alternately, also carry out corresponding alternately strong and weak with the power that makes the second detectable signal that human eye that interactive device receives is reflected back, and then, interactive device can alternately obtain the imaging of human eye on interactive device according to the power power of the power of the first detectable signal and the second detectable signal, to obtain the pupil center location of human eye according to human eye imaging, thereby calculate the position of optic centre according to pupil center location.
The position of the optic centre that especially, the embodiment of the present invention provides can be the coordinate figure of optic centre.
Further, the method of what the embodiment of the present invention provided the obtain coordinate figure of optic centre is pupil-corneal reflection method, the method is carried out sight line feature detection by interactive device, make it can produce respectively bright pupil and dark pupil image, and utilize image difference technology to extract pupil feature from bright pupil and dark pupil image, to catch fast eye locations and the meticulous pupil of cutting apart accurately in eyes image in view picture face image, wherein, as shown in Figure 3, bright pupil image refers to that it is the image forming that video camera shines into angle between the incident ray of human eye and the reflection ray of human eye at 1 o'clock, dark pupil image refers to that video camera shines into angle between the incident ray of human eye and the reflection ray of human eye and is greater than the image forming at 1 o'clock.
The step of above-mentioned sight line feature detection comprises:
(1) interactive device obtains difference image after bright pupil and dark pupil image are subtracted each other, and difference image is carried out to filtering, to obtain pupil region;
(2) interactive device detects the edge of pupil region, and searches for corneal reflection based on gray scale near human eye area;
(3) interactive device is by asking barycenter location cornea reflection kernel, and pupil edge is carried out to filtering, to eliminate the impact of corneal reflection on pupil edge profile;
(4) interactive device adopts ellipse fitting location pupil center location, obtains the centre coordinate of sub-pix, finally extracts sight line proper vector L;
Wherein, (Δ x, Δ is y) for pupil center is to the vector of corneal reflection, α
majorand α
min orbe respectively major axis and the minor axis of pupil ellipse, θ is the angle of pupil transverse and vertical direction, (i
c, j
c) be the position of corneal reflection in image.
The screen position that human eye is paid close attention to, i.e. coordinate figure (the G at human eye vision center
x, G
y) to the vector of corneal reflection, (Δ x, Δ relation y) can represent by a complicated Nonlinear Mapping function with pupil center location.
If sight line mapping function when people's head position is fixing is (G
x, G
y)=f (Δ x, y), therefore, the coordinate figure at human eye vision center is respectively Δ:
G
x＝f
x(Δx，Δy)；
G
y＝f
y(Δx，Δy)；
If sight line vector when certain point of people's eye fixation screen is (Δ x1, Δ y1), according to above Function Mapping formula, can calculate the now coordinate figure of certain point of people's eye fixation is (G
x1, G
y1).
Exemplary, as shown in Figure 4 and Figure 5, suppose that it is that D1 and the second predetermined threshold value are D2 that minor increment that the image of screen display can zoom in or out according to the variation of distance between human eye and screen and ultimate range are respectively the first predetermined threshold value, distance between human eye and the screen being recorded by above distance-finding method is D, and between the scope that D forms at D1 and D2, be D1≤D≤D2, the coordinate figure at the human eye vision center being obtained by the above-mentioned method of obtaining human eye vision centre coordinate value at (G simultaneously
x1, G
y1)-(G
x2, G
y2) between, the plane domain being made up of this coordinate figure is defined as to A, and along with human eye is close gradually to screen, the distance between human eye and screen also reduces gradually, if the distance between human eye and screen is reduced to D3 by D, interactive device centered by A the image to screen display amplify; Human eye continues near screen, if the distance between human eye and screen is reduced to D4 by D 3, now the coordinate figure of optic centre becomes at (G
x3, G
y3)-(G
x4, G
y4) between, the plane domain being made up of this coordinate figure is defined as to A1, can learn, A1 region is positioned at a-quadrant, interactive device centered by A1 the image to screen display amplify.
Contrary, the method that the method that interactive device dwindles the image of screen display and interactive device described above amplify the image of screen display is similar, be that interactive device is according to its reverse path that image of screen display is amplified, the image of screen display being dwindled, owing to having described above the method that interactive device amplifies the image of screen display in detail, therefore, the method of the image of screen display being dwindled for interactive device repeats no more herein.
It should be noted that, the coordinate figure in optic centre region described above is expressed as the coordinate figure of cornerwise two end points in optic centre region, as shown in Figure 6, the coordinate figure of optic centre region A is expressed as the coordinate figure that B point and C are ordered, if the coordinate figure that B is ordered is (G
x1, G
y1), the coordinate figure that C is ordered is (G
x2, G
y2), the coordinate figure of optic centre region A is expressed as (G
x1, G
y1)-(G
x2, G
y2), same, the coordinate figure of optic centre A1 is expressed as (G
x3, G
y3)-(G
x4, G
y4).
S204, interactive device obtain the distance between human eye and screen according to the first detectable signal and the second detectable signal.
Interactive device can be by adjusting the power of the first detectable signal, so that the power of the first detectable signal equals the power of the second detectable signal that human eye that interactive device receives is reflected back, and then interactive device is according to the power of the power of the first detectable signal or the second detectable signal, and obtain the distance between human eye and screen after calculating.
It will be understood by those skilled in the art that, the distance-finding method that the embodiment of the present invention provides is infrared power detection method, the principle that this infrared power detection method can use power to survey has been gone, the power of the first detectable signal that is about to record and the power of the second detectable signal calculate the distance between human eye and screen through overpower range finding equation, same, distance-finding method can also be laser distance measurement method, laser distance measurement method is that the velocity of propagation in test environment and interactive device send the first detectable signal to receiving the second detectable signal time used according to light, calculate the distance between human eye and screen.
It should be noted that, the present invention does not limit the execution sequence of S203 and S204, that is to say, in the exchange method that the embodiment of the present invention provides, can first carry out S203, rear execution S204; Also can first carry out S204, rear execution S203; Can also carry out S203 and S204 simultaneously.
S205, interactive device judge whether the distance between human eye and screen is more than or equal to the first predetermined threshold value, and whether distance between human eye and screen is less than or equal to the second predetermined threshold value.
Interactive device calculates after the distance between human eye and screen by range finding, the first predetermined threshold value and the second predetermined threshold value default in this distance and system are contrasted, and judge whether the distance between human eye and screen is more than or equal to the first predetermined threshold value, and whether the distance between human eye and screen is less than or equal to the second predetermined threshold value, that is to say, interactive device judges whether the distance between human eye and screen is positioned at the scope that the first predetermined threshold value and the second predetermined threshold value form.
S206, distance between human eye and screen are more than or equal to the first predetermined threshold value, and when the distance between human eye and screen is less than or equal to the second predetermined threshold value, if the distance between human eye and screen reduces, interactive device is put the image that enlarging screen shows centered by the position of optic centre, if the distance between human eye and screen increases, interactive device is put the image that dwindles screen display centered by the position of optic centre.
Distance between human eye and screen is more than or equal to the first predetermined threshold value, and when the distance between human eye and screen is less than or equal to the second predetermined threshold value, that is to say, in the time that the distance between human eye and screen is in the scope that the first predetermined threshold value and the second predetermined threshold value form, if the distance between human eye and screen reduces, interactive device is put the image of screen display is amplified centered by the position of optic centre, if the distance between human eye and screen increases, interactive device is put the image of screen display is dwindled centered by the position of optic centre.
It should be noted that, the exchange method that the embodiment of the present invention provides, can set in advance the scheme that display image screen is zoomed in or out, for example, when distance between human eye and screen is positioned at the scope that the first predetermined threshold value and the second predetermined threshold value form, if the distance between human eye and screen often reduces 2 centimetres, interactive device is point centered by the position of the optic centre that gets, according to the magnification ratio setting, the image of screen display is once amplified, contrary, if 2 centimetres of the every increases of the distance between human eye and screen, interactive device is point centered by the position of the optic centre that gets, according to the magnification ratio setting, the image of screen display is carried out to first-stage reduction.
Further, distance between human eye and screen described above reduces or the numerical value that increases is only exemplary explanation, the actual conditions of the technical scheme that this numerical value can provide according to the embodiment of the present invention in implementation process are chosen and are set, and the present invention does not limit.
Same, the concrete condition of the technical scheme that magnification ratio described above also can provide according to the embodiment of the present invention in implementation process set, and the present invention does not limit.
Be understandable that, the first predetermined threshold value and the second predetermined threshold value are respectively minor increment and the ultimate range that the image of screen display can zoom in or out according to the variation of distance between human eye and screen, meanwhile, the scope that the first predetermined threshold value and the second predetermined threshold value form comprises the first predetermined threshold value and these two critical values of the second predetermined threshold value.
Further, if the distance between human eye and screen is between the first predetermined threshold value and the second predetermined threshold value, in the time that the distance between human eye and screen reduces, interactive device is put and is had rank to amplify to the image of screen display centered by the position of optic centre, contrary, in the time that the distance between human eye and screen increases, interactive device is put and is had rank to dwindle to the image of screen display centered by the position of optic centre, wherein, having rank to amplify or have rank to dwindle refers in the time that the distance between human eye and screen is between the first predetermined threshold value and the second predetermined threshold value, interactive device point centered by the position of optic centre zooms in or out according to the function that zooms in or out of specifying the image of screen display.
For example, the image size of setting current screen demonstration is P, distance between human eye and screen is D, D is between the first predetermined threshold value D1 and the second predetermined threshold value D2, simultaneously, the default multiple that zooms in or out is β, and between human eye and screen, the effectively equidistant of change of distance is Z, be that distance between human eye and screen often reduces or increase a distance, interactive device is point centered by the position of optic centre just, according to the default multiple that zooms in or out, the image of screen display is zoomed in or out once, the distance reducing between above-mentioned human eye and screen or increase is defined as the effectively equidistant of change of distance between human eye and screen, so, if the distance between human eye and screen reduces or increases nZ (n is positive integer), the size of the image of screen display after zooming in or out is P1, wherein, P1=P ± n β P.
It should be noted that, between above-mentioned human eye and screen, the value of the effectively equidistant Z of change of distance can require to carry out accommodation according to actual design, and the present invention does not limit.For example, it is 2 centimetres that effectively equidistant Z can be set, and so, the distance between human eye and screen often reduces or increases 2 centimetres n times, interactive device, by point centered by the position by optic centre, zooms in or out n time the image of screen display according to the default multiple that zooms in or out; It is 5 centimetres that effectively equidistant Z also can be set, so, distance between human eye and screen often reduce or increase 5 centimetres n doubly, interactive device, by point centered by the position by optic centre, zooms in or out n time the image of screen display according to the default multiple that zooms in or out.
It should be noted that, in above-mentioned example, propose zoom in or out after the functional relation of image size P1 of screen display be only the one in many kinds of function relational expression, the embodiment of the present invention only describes as example.
Further, if the distance between human eye and screen is decreased to the first threshold value, interactive device is point centered by the position of optic centre, the resolution of setting and the human eye corresponding screen with distance between screen.
Further, if the distance between human eye and screen increases to the second threshold value, interactive device is point centered by the position of optic centre, the resolution of setting and the human eye corresponding screen with distance between screen.
It should be noted that, according to the effectively equidistant Z of change of distance between human eye defined above and screen, in the scope that the first predetermined threshold value D1 and the second predetermined threshold value D2 form, be provided with the threshold value on rank, i.e. the first threshold value 6Z, the second threshold value Z, the 3rd threshold value 5Z, the 4th threshold value 2Z, the 5th threshold value 4Z and the 6th threshold value 3Z etc., that is to say, in the scope that the first predetermined threshold value D1 and the second predetermined threshold value D2 form, interactive device is according to the zoom in or out image of screen display of the relation between the distance between human eye and screen and each threshold value, for example, if the distance between human eye and screen is decreased between the first threshold value 6Z or the first threshold value 6Z and the 3rd threshold value 5Z, interactive device is point centered by the position of optic centre, according to the magnification ratio value of systemic presupposition, the resolution of setting and the human eye corresponding screen with distance between screen, the object of image showing to reach enlarging screen, if the distance between human eye and screen is decreased between the 3rd threshold value 5Z or the 3rd threshold value 5Z and the 5th threshold value 4Z, interactive device is point centered by the position of optic centre, according to the magnification ratio value of systemic presupposition, the resolution of setting and the human eye corresponding screen with distance between screen, to reach the object of the image that enlarging screen shows, contrary, if the distance between human eye and screen increases between the second threshold value Z or the second threshold value Z and the 4th threshold value 2Z, interactive device is point centered by the position of optic centre, according to the scale down value of systemic presupposition, the resolution of setting and the human eye corresponding screen with distance between screen, to reach the object of the image that dwindles screen display, if the distance between human eye and screen increases between the 4th threshold value 2Z or the 4th threshold value 2Z and the 6th threshold value 3Z, interactive device is point centered by the position of optic centre, according to the scale down value of systemic presupposition, the resolution of setting and the human eye corresponding screen with distance between screen, to reach the object of the image that dwindles screen display.
Be understandable that, the first threshold value 6Z defined above is less than or equal to the second predetermined threshold value D2, the second threshold value Z is more than or equal to the first predetermined threshold value, that is to say, the first threshold value, the second threshold value, the 3rd threshold value, the 4th threshold value, the 5th threshold value and the 6th threshold value are all arranged in the scope that the first predetermined threshold value and the second predetermined threshold value form.
It should be noted that, the setting of the threshold value between above-mentioned the first predetermined threshold value and the second predetermined threshold value is only exemplary being illustrated, can set 6 threshold values, also can set the threshold value of other any number that meet design requirement such as 8, the present invention does not limit.
Further, in the time that the distance between human eye and screen is less than the first predetermined threshold value, if the distance between human eye and screen reduces, the interactive device image that enlarging screen does not show.
Further, in the time that the distance between human eye and screen is greater than the second predetermined threshold value, if the distance between human eye and screen increases, interactive device does not dwindle the image of screen display.
It should be noted that, in the time that the distance between human eye and screen is less than the first predetermined threshold value, that is to say, now, display image screen is in the most a high proportion of magnifying state, if the distance between human eye and screen continues to reduce again, interactive device will no longer amplify the image of screen display, but keep the image state of screen display when the first predetermined threshold value; Contrary, in the time that the distance between human eye and screen is greater than the second predetermined threshold value, that is to say, now, display image screen is the magnifying state in minimum ratio, namely the highest scaled down deflated state, be best image state, if the distance between human eye and screen continues to increase again, interactive device will no longer dwindle the image of screen display, but keep the image state of screen display when the second predetermined threshold value, namely best image image.
A kind of exchange method that the embodiment of the present invention provides, by obtaining the distance between position and human eye and the screen of optic centre, wherein, optic centre is the visual field of the human eye central point in screen, then,, if the distance between human eye and screen reduces, centered by the position of optic centre, put the image that enlarging screen shows, if the distance between human eye and screen increases, centered by the position of optic centre, put the image that dwindles screen display.By this scheme, if the distance between human eye and screen is in the scope that the first predetermined threshold value and the second predetermined threshold value form, interactive device can zoom in or out the image of screen display automatically according to the variation of distance between human eye and screen point centered by the position of optic centre, the problem that cannot complete multi-point touch operation and screen resolution inconvenience is manually set to solve deformity of limbs personage, thereby, by the interaction technique between this human eye and screen, can facilitate, clearly watch demonstration image so that obtain user.
Embodiment tri-
As shown in Figure 7, the embodiment of the present invention provides a kind of interactive device 1, comprising:
Processor 12, for obtaining the distance between position and human eye and the screen 13 of optic centre, wherein, described optic centre is the visual field of the described human eye central point in described screen 13, and the position of described optic centre is sent to storer 14, if and distance between described human eye and described screen 13 reduces, centered by the position of described optic centre, point amplifies the image that described screen 13 shows, if the distance between described human eye and described screen 13 increases, centered by the position of described optic centre, point dwindles the image that described screen 13 shows.
Described storer 14, for storing the position of described optic centre.
Described screen 13, for showing image.
It should be noted that, " visual field " of human eye is defined as human eye and fixedly watches the spatial dimension that can see when some attentively.The central point of the visual field that " optic centre " is defined as human eye in a plane, that is to say the central point in the plane that the visual field that optic centre is human eye is watched at human eye.
Further, described interactive device 1 also comprises:
Further, described processor 12, specifically for obtain the pupil center location of described human eye according to described the first detectable signal and described the second detectable signal, to obtain the position of described optic centre according to described pupil center location.
Further, described processor 12, specifically for obtaining the distance between described human eye and described screen 13 according to described the first detectable signal and described the second detectable signal.
Further, described processor 12, if be decreased to the first thresholding or increase to the second thresholding specifically for the distance between described human eye and described screen 13, point centered by the position of described optic centre, arranges the resolution of the described screen 13 corresponding with described human eye and distance between described screen 13.
Further, described processor 12, also for judging whether the distance between described human eye and described screen 13 is more than or equal to the first predetermined threshold value, and whether distance between described human eye and described screen 13 is less than or equal to the second predetermined threshold value.
Described processor 12, be more than or equal to described the first predetermined threshold value specifically for the distance between described human eye and described screen 13, and when the distance between described human eye and described screen 13 is less than or equal to described the second predetermined threshold value, if the distance between described human eye and described screen 13 reduces, centered by the position of described optic centre, point amplifies the image that described screen 13 shows, if the distance between described human eye and described screen 13 increases, centered by the position of described optic centre, point dwindles the image that described screen 13 shows.
Further, described processor 12, also in the time that the distance between described human eye and described screen 13 is less than described the first predetermined threshold value, if the distance between described human eye and described screen 13 reduces, does not amplify the image that described screen 13 shows.
Further, described processor 12, also in the time that the distance between described human eye and described screen 13 is greater than described the second predetermined threshold value, if the distance between described human eye and described screen 13 increases, does not dwindle the image that described screen 13 shows.
A kind of interactive device that the embodiment of the present invention provides, by obtaining the distance between position and human eye and the screen of optic centre, wherein, optic centre is the visual field of the human eye central point in screen, then,, if the distance between human eye and screen reduces, interactive device is put the image that enlarging screen shows centered by the position of optic centre, if the distance between human eye and screen increases, interactive device is put the image that dwindles screen display centered by the position of optic centre.By this scheme, if the distance between human eye and screen is in the scope that the first predetermined threshold value and the second predetermined threshold value form, interactive device can zoom in or out the image of screen display automatically according to the variation of distance between human eye and screen point centered by the position of optic centre, the problem that cannot complete multi-point touch operation and screen resolution inconvenience is manually set to solve deformity of limbs personage, thereby, by the interaction technique between this human eye and screen, can facilitate, clearly watch demonstration image so that obtain user.
Those skilled in the art can be well understood to, for convenience and simplicity of description, only be illustrated with the division of above-mentioned each functional module, in practical application, can above-mentioned functions be distributed and completed by different functional modules as required, be divided into different functional modules by the inner structure of device, to complete all or part of function described above.The system of foregoing description, the specific works process of device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
In the several embodiment that provide in the application, should be understood that, disclosed system, apparatus and method, can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described module or unit, be only that a kind of logic function is divided, when actual realization, can have other dividing mode, for example multiple unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in multiple network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.
In addition, the each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and also can adopt the form of SFU software functional unit to realize.
If described integrated unit is realized and during as production marketing independently or use, can be stored in a computer read/write memory medium using the form of SFU software functional unit.Based on such understanding, the all or part of of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) or processor (processor) carry out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), the various media that can be program code stored such as random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (16)
1. an exchange method, is characterized in that, comprising:
Obtain the distance between position and human eye and the screen of optic centre, wherein, the central point of the visual field that described optic centre is described human eye in described screen;
If the distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, if the distance between described human eye and described screen increases, centered by the position of described optic centre, put the image that dwindles described screen display.
2. exchange method according to claim 1, is characterized in that, described in obtain the position of optic centre method specifically comprise:
Launch the first detectable signal to described human eye;
Receive the second detectable signal from described human eye, described the second detectable signal is the reflected signal of described human eye to described the first detectable signal;
Obtain the pupil center location of described human eye according to described the first detectable signal and described the second detectable signal, to obtain the position of described optic centre according to described pupil center location.
3. exchange method according to claim 1, is characterized in that, described in obtain the distance between human eye and screen method specifically comprise:
Launch described the first detectable signal to described human eye;
Receive described the second detectable signal from described human eye, described the second detectable signal is the reflected signal of described human eye to described the first detectable signal;
Obtain the distance between described human eye and described screen according to described the first detectable signal and described the second detectable signal.
4. according to the exchange method described in claim 1-3 any one, it is characterized in that, if the distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, specifically comprises:
If the distance between described human eye and described screen is decreased to the first thresholding, point centered by the position of described optic centre, arranges the resolution of the described screen corresponding with described human eye and distance between described screen.
5. according to the exchange method described in claim 1-3 any one, it is characterized in that, if the distance between described human eye and described screen increases, centered by the position of described optic centre, put the image that dwindles described screen display, specifically comprise:
If the distance between described human eye and described screen increases to the second thresholding, point centered by the position of described optic centre, arranges the resolution of the described screen corresponding with described human eye and distance between described screen.
6. according to the exchange method described in claim 1-5 any one, it is characterized in that, described in obtain the distance between position and human eye and the screen of optic centre after, described method also comprises:
Judge whether the distance between described human eye and described screen is more than or equal to the first predetermined threshold value, and whether distance between described human eye and described screen is less than or equal to the second predetermined threshold value;
Wherein, if the distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, if the distance between described human eye and described screen increases, the image that point dwindles described screen display centered by the position of described optic centre comprises:
Distance between described human eye and described screen is more than or equal to described the first predetermined threshold value, and when the distance between described human eye and described screen is less than or equal to described the second predetermined threshold value, if the distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, if the distance between described human eye and described screen increases, centered by the position of described optic centre, put the image that dwindles described screen display.
7. according to the exchange method described in claim 1 or 6, it is characterized in that, in the time that the distance between described human eye and described screen is less than described the first predetermined threshold value, if the distance between described human eye and described screen reduces, do not amplify the image of described screen display.
8. according to the exchange method described in claim 1 or 6, it is characterized in that, in the time that the distance between described human eye and described screen is greater than described the second predetermined threshold value, if the distance between described human eye and described screen increases, do not dwindle the image of described screen display.
9. an interactive device, is characterized in that, comprising:
Processor, for obtaining the distance between position and human eye and the screen of optic centre, wherein, described optic centre is the visual field of the described human eye central point in described screen, and the position of described optic centre is sent to storer, if and distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, if the distance between described human eye and described screen increases, centered by the position of described optic centre, put the image that dwindles described screen display;
Described storer, for storing the position of described optic centre;
Described screen, for showing image.
10. interactive device according to claim 9, is characterized in that, also comprises:
Transmitter, for launching the first detectable signal to described human eye;
Receiver, for receiving the second detectable signal from described human eye, described the second detectable signal is the reflected signal of described human eye to described the first detectable signal.
11. according to the interactive device described in claim 9 or 10, it is characterized in that, described processor, specifically for obtain the pupil center location of described human eye according to described the first detectable signal and described the second detectable signal, to obtain the position of described optic centre according to described pupil center location.
12. according to the interactive device described in claim 9 or 10, it is characterized in that, described processor, specifically for obtaining the distance between described human eye and described screen according to described the first detectable signal and described the second detectable signal.
13. according to the interactive device described in claim 9-12 any one, it is characterized in that, described processor, if be decreased to the first thresholding or increase to the second thresholding specifically for the distance between described human eye and described screen, point centered by the position of described optic centre, arranges the resolution of the described screen corresponding with described human eye and distance between described screen.
14. according to the interactive device described in claim 9-13 any one, it is characterized in that,
Described processor, also for judging whether the distance between described human eye and described screen is more than or equal to the first predetermined threshold value, and whether distance between described human eye and described screen is less than or equal to the second predetermined threshold value;
Described processor, be more than or equal to described the first predetermined threshold value specifically for the distance between described human eye and described screen, and when the distance between described human eye and described screen is less than or equal to described the second predetermined threshold value, if the distance between described human eye and described screen reduces, the image of the described screen display of some amplification centered by the position of described optic centre, if the distance between described human eye and described screen increases, centered by the position of described optic centre, put the image that dwindles described screen display.
15. according to the interactive device described in claim 9 or 14, it is characterized in that, described processor, also in the time that the distance between described human eye and described screen is less than described the first predetermined threshold value, if the distance between described human eye and described screen reduces, do not amplify the image of described screen display.
16. according to the interactive device described in claim 9 or 14, it is characterized in that, described processor, also in the time that the distance between described human eye and described screen is greater than described the second predetermined threshold value, if the distance between described human eye and described screen increases, do not dwindle the image of described screen display.
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