CN107728881A

CN107728881A - The cursor positioning method of hand-held indicator device

Info

Publication number: CN107728881A
Application number: CN201710954368.5A
Authority: CN
Inventors: 程瀚平; 黄昭荐; 梁家钧
Original assignee: Pixart Imaging Inc
Current assignee: Pixart Imaging Inc
Priority date: 2013-07-22
Filing date: 2013-07-22
Publication date: 2018-02-23
Anticipated expiration: 2033-07-22
Also published as: CN104331212B; CN107728881B; CN104331212A

Abstract

The present invention provides a kind of cursor positioning method of hand-held indicator device, and this cursor positioning method includes：The first point coordinates are produced in the very first time, and is corresponded to according to the first point coordinates and the display location of cursor is fixed on the first point coordinates；The second point coordinates are produced in the second time, wherein the second time was after the first time；Calculate the first motion-vector between the first point coordinates and the second point coordinates；One unit compensation vector is produced according to the first motion-vector；The 3rd point coordinates are produced in the 3rd time, wherein the 3rd time was after the second time；Calculate the second motion-vector between the 3rd point coordinates and the second point coordinates；And cursor is calculated in the display location of the 3rd time according to the first point coordinates, unit compensation vector and the second motion-vector.The present invention can improve the operational convenience of user and stability.

Description

The cursor positioning method of hand-held indicator device

Related application

The present invention is the Chinese patent application No.201310309281.4 submitted on July 22nd, 2013 divisional application.

Technical field

The present invention relates to a kind of localization method of indicator device, and more particularly to a kind of cursor of hand-held indicator device is determined Position method.

Background technology

Existing hand-held remote control device can be by analyzing the reference light source near display device in built-in image sense The position surveyed in region, calculate the point coordinates of hand-held remote control device.What hand-held remote control device will obtain calculating Point to point coordinates and be sent to a main frame, main frame is corresponded to the object that control is shown on the picture of display device, such as cursor, To carry out related software operation.

When user is when using hand-held remote control device, user would generally vacantly hold hand-held remote control device to grasp Cursor shown on display device picture is controlled, to carry out related software operation.But hand-held remote control device is vacantly hold, can not Hand-held remote control device can occur with avoiding move because of handshaking or vibration, go out cursor shown on display device picture Existing position is unstable, and the operating handle in turn resulting in user is bad.

Although current hand-held remote control device typically has lock point location function, and can be by whether detecting user Point button etc. is locked in the state for stablizing cursor or by manipulating, cursor is fixed on the current display location of display device. However, when locking point location mode release, hand-held remote control device is that can use the mode of absolute fix, and is counted according to current Calculate position correspondence control cursor movement of the reference point in image sensing region.In this way, light can occur on the picture of display device The situation of unexpected hop is marked, and then reduces operating handle, also results in the inconvenience in user's use.

The content of the invention

In view of this, the embodiment of the present invention provides a kind of cursor positioning method of hand-held indicator device, can be by hand When the formula indicator device of holding leaves lock point location pattern, actively switch cursor station-keeping mode in absolute fix or relative positioning mode, To avoid that cursor hop situation occurs, to improve the operating handle of user.

The embodiment of the present invention provides a kind of cursor positioning method of hand-held indicator device, under this cursor positioning method includes Row step.First, the first digitized video of reference point is extracted, by according to reference point in terms of image space in the first digitized video Calculate the first point coordinates.Secondly, the corresponding cursor for controlling a cursor to be located at a display device is produced according to the first point coordinates Parameter.Then, when hand-held indicator device enters lock point location pattern, hand-held indicator device records the first point coordinates, And cursor is set to be fixed on the first point coordinates fixed output cursor parameter or by way of not exporting cursor parameter simultaneously.With Afterwards, when hand-held indicator device leaves lock point location pattern, the second digitized video of reference point is extracted, and exist according to reference point Image space in second digitized video calculates the second point coordinates, and the first point coordinates and the second point coordinates are produced with corresponding Between motion-vector.Then, hand-held indicator device calculates cursor positioning according to motion-vector and the first point coordinates, to mend The offset between first the second point coordinates of point coordinates is repaid, and control cursor movement is accordingly produced according to result of calculation Cursor parameter.

The embodiment of the present invention separately provides a kind of cursor positioning method of hand-held indicator device, and this cursor positioning method includes The following steps.First, the first digitized video of reference point is extracted, in terms of according to reference point in the image space of the first digitized video Calculate the first point coordinates.Secondly, one cursor of corresponding control is produced according to the first point coordinates in a cursor of a display device to join Number.Then, when hand-held indicator device enters lock point location pattern, hand-held indicator device records the first point coordinates, and Cursor is set to be fixed on display device fixed output cursor parameter or by way of not exporting cursor parameter simultaneously.Then, when When hand-held indicator device leaves lock point location pattern, hand-held finger is set to point to and sit based on first to when being installed on subsequent movement It is denoted as starting point, and coordinates point coordinates displacement caused by the movement of hand-held indicator device to enter the positioning meter of line cursor Calculate.Then, the cursor parameter of control cursor movement is accordingly produced according to result of calculation.

The embodiment of the present invention also provides a kind of cursor positioning method of hand-held indicator device, and this cursor positioning method includes The following steps.First, the first point coordinates are produced in the very first time, and according to the corresponding display position by cursor of the first point coordinates Put and be fixed on the first point coordinates.Secondly, the second point coordinates are produced in the second time, wherein the second time was in the very first time Afterwards.Thereafter, the first motion-vector between the first point coordinates and the second point coordinates is calculated.Then, according to the first movement Vector produces unit compensation vector.The 3rd point coordinates are produced in the 3rd time, wherein the 3rd time was after the second time. Then, the second motion-vector between the 3rd point coordinates and the second point coordinates is calculated.Then, according to the first point coordinates, Unit compensation vector calculates cursor in the display location of the 3rd time with the second motion-vector.

The embodiment of the present invention also provides a kind of cursor positioning method of hand-held indicator device, and this cursor positioning method includes The following steps.First, the first point coordinates are produced in the very first time and locks point location pattern to enter, and by the display location of cursor It is fixed on the first point coordinates.Secondly, the second point coordinates are produced in the second time, to leave the lock point location pattern, wherein Second time was after the first time.Thereafter, calculate first between the first point coordinates and the second point coordinates move to Amount.Then, unit compensation vector is produced according to the first motion-vector.Then, during subsequent movement after the second time, it is based on First point coordinates are starting point, according to unit compensation vector and point coordinates caused by coordinating the movement of hand-held indicator device Displacement carries out the location Calculation of the cursor.

In summary, the beneficial effects of the present invention are the embodiment of the present invention provides a kind of light of hand-held indicator device Localization method is marked, this cursor positioning method actively can calculate hand-held finger by detecting reference point in the image space of digitized video Mobile change to device, judges whether hand-held indicator device enters or leave lock point location pattern.The cursor positioning side Method and can hand-held indicator device leave lock point location pattern when, actively with relative positioning mode to reference point in digitized video Point coordinates be corrected, with calculate cursor positioning.Then, hand-held indicator device can be in completion point coordinates correction program When, automatically switch back into absolute fix pattern, use and avoid that hop situation occurs, with improve the operational convenience of user with it is steady It is qualitative.

For the enabled feature and technology contents for being further understood that the present invention, refer to below in connection with the present invention specifically Bright and accompanying drawing, but these explanations are only used for illustrating the present invention with appended accompanying drawing, rather than scope of the presently claimed invention is made Any limitation.

Brief description of the drawings

Fig. 1 is the function box schematic diagram of hand-held indicator device provided in an embodiment of the present invention.

Fig. 2 is the schematic diagram that hand-held indicator device provided in an embodiment of the present invention is applied to interaction systems.

Fig. 3 is the schematic flow sheet of the cursor positioning method of hand-held indicator device provided in an embodiment of the present invention.

Fig. 4 A~Fig. 4 C are the reference point position sensed during hand-held indicator device movement provided in an embodiment of the present invention respectively Put change and the schematic diagram of cursor change in location on display device picture.

Fig. 5 is the flow signal of the relative mode positioning cursor method of hand-held indicator device provided in an embodiment of the present invention Figure.

Fig. 6 A are the reference point locations changes and light sensed during hand-held indicator device movement provided in an embodiment of the present invention The schematic diagram for the change in location being marked on display device picture.

Fig. 6 B are showing for the reference point locations change that is sensed during hand-held indicator device provided in an embodiment of the present invention movement It is intended to.

Fig. 6 C and Fig. 6 D are that the reference point locations sensed during hand-held indicator device movement provided in an embodiment of the present invention become Change the schematic diagram with cursor change in location on display device picture.

Fig. 6 E are the schematic diagrames of cursor provided in an embodiment of the present invention change in location on display device picture.

Fig. 7 is the schematic flow sheet for the hand-held indicator device cursor positioning method that another embodiment of the present invention provides.

Fig. 8 is the flow signal that the hand-held indicator device that one embodiment of the invention provides enters lock point location mode method Figure.

Fig. 9 A and Fig. 9 B be respectively it is provided in an embodiment of the present invention judge hand-held indicator device whether enter lock point location The schematic diagram of sensing reference point position movement change during pattern.

Figure 10 is the schematic flow sheet for the boundary-correction method that one embodiment of the invention provides.

Figure 11 A~Figure 11 D are the reference point sensed during hand-held indicator device movement provided in an embodiment of the present invention respectively The schematic diagram of change in location and cursor change in location on display device picture.

Figure 12 is the schematic flow sheet for the hand-held indicator device cursor positioning method that further embodiment of this invention provides.

Figure 13 is the schematic flow sheet for the hand-held indicator device cursor positioning method that yet another embodiment of the invention provides.

Wherein, description of reference numerals is as follows：

10：Hand-held indicator device

11：Extraction of Image unit

12：Processing unit

13：Communication unit

14：Input block

15：Memory cell

16：Push-button unit

20：Display device

21：Reference point

23、33：Cursor

d、d1：The displacement of cursor

201：First display side

203：Second display side

205：3rd display side

207：4th display side

F1、F2、F3、F4、F5、F6：Digitized video

111、111a、111b、111c、111d、111e：Opereating specification

1111st, 1111a~1111c：The central point of opereating specification

113、113’、113a、113b、113c：Reference point image

115、117：Reference point image

The motion-vector of point coordinates

Point coordinates motion vector

+：Central point

Y_MAX：First axle higher limit

Y_MIN：First axle lower limit

X_MAX：Second axle higher limit

X_MIN：Second axle lower limit

DE1：First axially

DE2：Second axially

(x1,y1)、(x1’,y1’)、(x2,y2)、(x3,y3)：Point coordinates

(x^N,y^N)、(x^N-1,y^N-1)：Point coordinates

(x1,yA)、(x1,yB)、(xC,y1)、(xD,y1)：Point coordinates position Point coordinates

With respect to point coordinates

S301~S319：Steps flow chart

S501~S517：Steps flow chart

S701~S715：Steps flow chart

S801~S811：Steps flow chart

S1001~S1017：Steps flow chart

S1201~S1219：Steps flow chart

S1301~S1311：Steps flow chart

Embodiment

Hereinafter, the present invention will be described in detail by illustrating the various illustrative embodiments of the present invention.However, this Inventive concept may embody in many different forms, and should not be construed as limited by exemplary embodiments set forth herein. In addition, same reference numbers can be used to represent similar element in the accompanying drawings.

(embodiment of hand-held indicator device)

The hand-held indicator device can be applied to the sensing point location of display device (not illustrating).It refer to Fig. 1, Fig. 1 Illustrate the function box schematic diagram of hand-held indicator device provided in an embodiment of the present invention.Hand-held indicator device 10 can be by carrying The image of an at least reference point is taken, and hand-held indicator device 10 is calculated according to image space of the reference point in extracted image A point coordinates, and hand-held indicator device 10 and ginseng can be calculated according to the mobile change information of the point coordinates continuous time Relative movement information between examination point (not illustrating).Hand-held indicator device 10 will be transmitted accordingly with wireless transmissioning mode Point coordinates position or mobile message are to a display device 20, to coordinate manipulation display device 20 to show the execution shape of software program State.

The point coordinates are that hand-held indicator device 10 points to a sensing point of display device 20 in display device 20 Coordinate position in defined coordinate system.In general the sensing point is usually a light of the hand-held indicator device 10 Axle is aimed in the position of the display device 20, or an Extraction of Image unit of the hand-held indicator device 10 extracts shadow As the central point of picture is corresponding in the position of the display device 20.Because the relative position according to reference point and display device 20 is closed The point coordinates that the image space of system and reference point on hand-held indicator device 10 calculates hand-held indicator device 10 belong to Prior art, do not repeated herein.

In simple terms, when hand-held indicator device 10 operates on absolute fix pattern, hand-held indicator device 10 can be first First digitized video of the corresponding reference point locations of extraction, and calculated according to reference point in the image space of the first digitized video First point coordinates of the corresponding display device 20 of hand-held indicator device 10.Hand-held indicator device 10 will point to according to first Coordinate produces the cursor parameter that control cursor is located at display device 20.When hand-held indicator device 10 enters lock point location pattern When, hand-held indicator device 10 first can lock the first point coordinates before point by record, and cursor (not illustrating) is fixed on display dress Put the display location of first point coordinates on 20 before corresponding lock point.

In the present embodiment, when hand-held indicator device 10 leaves lock point location pattern, hand-held indicator device 10 can be first Into a relative positioning mode.Specifically, when hand-held indicator device 10 enters relative positioning mode, hand-held finger is to dress One second digitized video of the reference point can be extracted by putting 10, and be calculated according to reference point in the image space of the second digitized video Produce one second point coordinates of the corresponding display device 20 of hand-held indicator device 10.Hand-held indicator device 10 is according to being recorded The first point coordinates and second point coordinates calculated, a motion-vector of calculating reference point before lock point.Hand-held finger to Device 10 then can calculate cursor positioning according to the motion-vector of the calculating with recording the first point coordinates before locking point, with benefit Repay the offset between the first point coordinates and second point coordinates before recording lock point.Hand-held indicator device 10 and root The cursor parameter of control cursor movement is accordingly produced according to result of calculation.

Further say, hand-held indicator device 10 can complete correction light within a default correction time or in number of corrections Position is demarcated, cursor is moved to by the corresponding cursor position for recording the first point coordinates before lock point to should secondary point coordinates Cursor position.When hand-held indicator device 10 completes correction cursor positioning, hand-held indicator device 10 can leave relative positioning Pattern, and absolute fix pattern is again introduced into until entering lock point location pattern next time.

In short, in the present embodiment, hand-held indicator device 10 can actively switch on absolute fix pattern, relative positioning Pattern or lock point location pattern, and positioned according to the cursor on its current operating mode calculating picture of display device 20.

Further say, hand-held indicator device 10 include Extraction of Image unit 11, processing unit 12, communication unit 13, Input block 14, memory cell 15 and push-button unit 16.Extraction of Image unit 11, communication unit 13, input block 14, storage Unit 15 and push-button unit 16 are respectively coupled to processing unit 12.

Extraction of Image unit 11 is when hand-held indicator device 10 points to reference point, extracting to should reference point locations Image, and sequentially produce multiple digitized videos (image frame).The reference point can be disposed on display device 20 Near, judge to device 10 the sensing position of hand-held indicator device 10 with for hand-held finger, and then judge hand-held finger to Device 10 relative to reference point moving direction and amount of movement.

Specifically, Extraction of Image unit 11 (can not illustrated) by a filter unit, filter out the light outside specific light wave Line, Extraction of Image unit 11 is set only to sense the light of the specific light wave of tool sent by the reference point.Extraction of Image unit 11 and root According to default image sampling frequency (image frame rate) light caused by sensing reference point, has the ginseng sequentially to produce Multiple digitized videos of examination point.

Processing unit 12 is to receive those digitized videos caused by Extraction of Image unit 11, and according to those digitized videos One of calculate the reference point one of those digitized videos image space.Processing unit 12 will be according to hand-held indicator device 10 operating mode is with absolute fix pattern, relative positioning mode or lock point location mode computation and controls the picture of display device 20 On cursor positioning.

Input block 14 is with so that hand-held finger is to the user's setting of image sampling frequency and relative positioning of device 10 The correction parameter of the cursor of pattern, such as the number of corrections of cursor position.For example, user can be according to a default school The positive time sets the image sampling frequency of reference point and the number of corrections of cursor is set according to the image sampling frequency.Lift again For example, user can determine the number of corrections of cursor according to setting of image sampling frequency.The image sampling frequency can be Corresponding to the frame updating frequency of display device 20, that is, image sampling frequency can be set according to display device 20.

In fact, input block 14 can be a button interface (keypad), finger navigation element (optical finger Navigation device) or a button (button) to start display device 20 show configuration interface, so that user sets Surely the number of corrections of default correction time, image sampling frequency and/or cursor.And if the hand-held indicator device 10 has on the other hand When holding formula display screen (not shown), those default correction times, image sampling frequency can be also shown by the hand-held display screen The number of corrections of rate and/or cursor.The hand-held display screen also can be a Touch Screen.

Memory cell 15 can be used to store above-mentioned first point coordinates, the second point coordinates, motion-vector and cursor ginseng Number.Memory cell 15 also can according to hand-held indicator device 10 operating requirements be used for store above-mentioned default correction time, image takes The number of corrections of sample frequency and cursor.

Push-button unit 16 enters lock point location mould with so that user optionally presses control hand-held indicator device 10 Formula leaves lock point location pattern.It is, user can control the push-button unit 16 of hand-held indicator device 10 by pressing, Hand-held indicator device 10 is set to enter or leave lock point location pattern.

It is worth noting that, if user is by way of pressing keys unit 16, enter hand-held indicator device 10 When entering to lock point location pattern, can be set in user be not used push-button unit 16 release lock dotted state (i.e. drive hand-held finger to Device 10 leaves lock point location pattern) before, hand-held indicator device 10 will not be because of point coordinates displacement caused by its movement Lock point location pattern is left more than a preset value.

In fact, push-button unit 16 can be disposed on hand-held indicator device 10, and can be touch control type switch, pressing Formula switchs or rocker switch.For example, when push-button unit 16 is touch control type switch, user can be by touching push-button unit 16 1, which get off, starts lock point location pattern, and (double-click) makes hand-held indicator device 10 leave lock point location mould under two Formula.

When processing unit 12 operates on absolute fix pattern in hand-held indicator device 10, the meeting basis of processing unit 12 should First digitized video of a little digitized videos calculates the reference point in the image space of the first digitized video.Then, hand-held finger to Device 10 produces the first point coordinates further according to corresponding calculate of image space of the reference point in the first digitized video.Processing unit 12 It can be positioned with absolute fix mode computation cursor.Specifically, processing unit 12 can be according to the first point coordinates production calculated Raw corresponding control cursor is located at the cursor parameter of display device 20.Processing unit 12 simultaneously can will calculate corresponding control cursor Cursor parameter is sent to display device 20 using communication unit 13 with wireless transmission method, accordingly to control cursor showing Shift position on the picture of device 20.Wherein, hand is calculated according to image space of one or more reference points in extracted image It is to belong to prior art content to hold absolute point coordinates of the formula indicator device on the picture of display device 20, and non-invention master To be improvedd feature, do not repeated herein.

And when hand-held indicator device 10 enters lock point location pattern, processing unit 12 is that can record first before lock point Point coordinates, and cursor is fixed on display device 20.For example, processing unit 12 can continue fixation and pass through communication unit 13 export the corresponding cursor parameter for recording the first point coordinates before locking point to display device 20.Or processing unit 12 Cursor parameter can not be exported, or output rate of travel is zero, and cursor is fixed on display device 20.

When hand-held indicator device 10, which leaves lock point location pattern, enters relative positioning mode, processing unit 12 immediately can Start point coordinates correction program, hand-held indicator device 10 is calculated cursor positioning with relative positioning mode.Processing unit 12 Within above-mentioned default correction time or in number of corrections it can make hand-held indicator device 10 when subsequent movement, based on being recorded The first point coordinates before lock point are starting point, coordinate motion-vector and point coordinates caused by the movement of hand-held indicator device 10 Displacement enters the location Calculation of line cursor.The point coordinates displacement refers to that the processing unit 12 of hand-held indicator device 10 exists Continuous time calculates the displacement of two point coordinates.

It is worth noting that, in the present embodiment, Extraction of Image unit 11 can be by charge coupled cell (charge- Coupled device, CCD) image sensor or CMOS (complementary metal Oxide semiconductor, CMOS) image sensor realizes, and can be according to reality in those skilled in the art Border service condition designs, and the present embodiment is not any limitation as herein.

Processing unit 15 can be with microcontroller (microcontroller) or embedded controller in the present embodiment Processor chips such as (embedded controller) compile mode to realize using procedure code, but the present embodiment is not intended to limit. Memory cell 15 can utilize the volatibility such as flash chip, ROM chip or RAM chip or non-easy The property lost memory chip is realized, but the present embodiment is not limited thereto.And communication unit 13 can utilize Bluetooth transmission side Formula is by motion-vector information transmission to display device 20, but the present embodiment is not limited.

It is noted that Extraction of Image unit 11, processing unit 12, communication unit 13, input block 14, memory cell 15 And species, Entity Architecture and/or the embodiment of push-button unit 16 are the species of foundation hand-held indicator device 10, entity frame Structure i.e./or embodiment set, the present invention does not limit.

An explanation is done below for a concrete application mode of hand-held indicator device 10.Refer to Fig. 2 and with reference to Fig. 1, Fig. 2 illustrate the schematic diagram that hand-held indicator device provided in an embodiment of the present invention is applied to interaction systems.The interactive system System includes hand-held indicator device 10 and display device 20.

The processing unit 12 of hand-held indicator device 10 is understood when hand-held indicator device 10 points to the position of reference point 21, Multiple digitized videos of the driving extraction reference point 21 of Extraction of Image unit 11.Processing unit 12 then can be according to multiple digitized videos One of calculate the image space of reference point 21, with the corresponding sensing for calculating hand-held indicator device 10 and pointing to display device 20 Coordinate.Processing unit 12 is simultaneously determined according to cursor of the point coordinates according to cursor 23 on its operating mode calculating picture of display device 20 Position.The cursor parameter that corresponding cursor is produced according to the change in location of reference point 21 is simultaneously passed through communication unit by hand-held indicator device 10 Member 13 wirelessly transmits cursor parameter to display device 20.Accordingly, hand-held indicator device 10 can control display device 20 The position that cursor 23 occurs on picture.

Subsidiary one is mentioned that, in the present embodiment, display device 20 itself has executable soft with display software program Part and hardware framework.So separately it can include a main frame (not illustrating), example according to practical application request in actually described interaction systems Such as it is game host or host computer.Main frame can be used to read and perform software program, such as Games Software, as light gun game, Baseball and tennis game etc..Main frame simultaneously can be by the execution status display of software program in display device 20, for using Person browses manipulation.

It is worth noting that, in the present embodiment, the hand-held indicator device 10 may be, for example, a remote control.It is described aobvious Showing device 20 may be, for example, but be not limited to projection display equipment, game machine display screen, video screen and computer display screen Curtain.Reference point 21 can be by it is multiple tool specific wavelengths light emitting diodes, such as infrared light-emitting diode (IR LED), swash Optical diode or ultraviolet light-emitting diodes are arranged in variously-shaped reference point to realize.The light emitting diode can be by Independent power supply voluntarily supplies luminous required power supply.But the light emitting diode can also be electrically connected with display device in practice 20 or main frame, with obtain it is luminous needed for power supply.

In addition, the present embodiment is used only a reference point, but also visual design requirement is voluntarily by those skilled in the art Set reference point 21 quantity, for example, 1,2 either it is multiple.That is, Fig. 2 is only supplied to illustrate hand-held finger to dress 10 running is put, is not limited to the present invention.

The present embodiment separately provides the cursor positioning method for hand-held indicator device 10, with to hand-held indicator device 10 Running further illustrate.It refer to Fig. 3 and referring concurrently to Fig. 1, Fig. 2 and Fig. 4 A to Fig. 4 C.Fig. 3 illustrates of the invention real The schematic flow sheet of the cursor positioning method of the hand-held indicator device 10 of example offer is provided.Fig. 4 A to Fig. 4 C illustrate the present invention respectively The reference point locations change sensed during the hand-held indicator device movement that embodiment provides is upper in display device picture with cursor Put the schematic diagram of change.

First, in step S301, Extraction of Image unit 11 can carry when hand-held indicator device 10 points to reference point 21 The image of the corresponding position of reference point 21 is taken, and produces the first digitized video F1.

Secondly, in step S303, processing unit 12 can calculate the ginseng of corresponding reference point 21 according to the first digitized video F1 Examination point image 113 produces 10 corresponding display device of hand-held indicator device in the first digitized video F1 image space with corresponding 20 the first point coordinatesFirst point coordinatesRepresent first digitized video F1 of the hand-held indicator device 10 in extraction The sensing position vector of middle corresponding display device 20, and the first point coordinatesFor (x1, y1).

Special instruction, the first point coordinatesCalculation it is as follows.First, processing unit 12 is according to the first number Word image F1 central point "+" and image space of the reference point image 113 in the first digitized video F1, which define, is mapped in the Correspond to the opereating specification 111 of display device 20 in one digitized video F1.The opereating specification 111 is with a default displaying ratio Corresponding to display device 20, and opereating specification 111 is that processing unit 12 does origin with reference point image 113, and according to default aobvious Show that ratio is defined in the first digitized video F1.Processing unit 12 also can further define the central point of the opereating specification 111 1111, processing unit 12 as origin and can coordinate hand-held indicator device 10 by the use of the central point 1111 of opereating specification 111 The anglec of rotation, to calculate sensing position vector of the first digitized video F1 central point "+" in opereating specification 111, to obtain One point coordinates

It is worth noting that, obtaining first point coordinatesWhen, not to define the central point 1111 as necessity, also Can directly according to the first digitized video F1 central point "+" and reference point image 113 in the first digitized video F1 into image position The relativeness or the imaging features of reference point image 113 put calculate the corresponding anglec of rotation, and then obtain first sensing Coordinate

The central point "+" is that the center of array is sensed in Extraction of Image unit 11 in the present embodiment.In other words, first Point coordinatesRepresent to sense the center (i.e. central point "+") of array in Extraction of Image unit 11 in the first digitized video F1 Corresponding to the point coordinates position of the coordinate system of display device 20.The anglec of rotation can also be processing unit 12 according to interior The acceleration magnitude for being built in an acceleration unit (the not illustrating) output of hand-held indicator device 10 calculates generation.The acceleration list Member can such as gravity sensor (G-sensor), accelerometer (accelerometer).

Then, in step S305, processing unit 12 is with absolute fix pattern according to the first point coordinatesCalculate cursor Positioning.The corresponding light for producing control cursor 23 and being located at display device 20 of result of calculation that processing unit 12 then positions according to cursor Mark parameter.

It is noted that the first point coordinates as shown in Figure 4 APositioned at the first digitized video F1 opereating specification 111 It is interior, so display device 20 can be correspondingly arranged cursor 23 in aobvious on picture when cursor parameter is received according to its displaying ratio Show position.Therefore, when hand-held indicator device 10 transmits the cursor parameter of control cursor 23 by communication unit 13 and presets aobvious When showing ratio to display device 20, display device 20 then can be by according to (that is, the parsing of display device 20 of current displaying ratio Degree), cursor 23 is calculated in the display location on the picture of display device 20.Those skilled in the art should know display device 20 calculate cursor 23 in the mode of the position on the picture of display device 20 according to current display ratio with cursor parameter, therefore not herein Repeat.

Then, in step S307, processing unit 12 judges whether hand-held indicator device 10 enters lock point location pattern. For example, processing unit 12 can be according to reference point image 113 in multiple continuous number images point coordinates displacement or Judge whether hand-held indicator device 10 enters lock point location pattern according to whether push-button unit 16 is pressed.

When processing unit 12 judges that hand-held indicator device 10 enters lock point location pattern, step S309 is performed.Conversely, When processing unit 12 judges that hand-held indicator device 10 still operates on absolute fix pattern, step S301 is come back to.

In step S309, processing unit 12 records the first point coordinatesIn memory cell 15.Meanwhile processing unit 12 can fix corresponding first point coordinates of output by communication unit 13Cursor parameter, or do not export any cursor ginseng Number, also or output cursor 23 moving parameter for (0,0) to display device 20, cursor 23 is fixed on display device 20.This When, as shown in Figure 4 B, the reference point image 113 for making corresponding reference point 21 even with person's mobile hand-held indicator device 10 occurs Displacement, and make hand-held indicator device 10 point to position by the first point coordinates byIt is moved toAs long as hand-held finger to Device 10 can make cursor 23 be fixed on display device 20 always still in lock point location pattern, hand-held indicator device 10.It is describedBe processing unit 12 by the use of the central point 1111 ' of opereating specification 111 ' as origin, to calculate in the first digitized video F1 For heart point "+" in the sensing position vector of opereating specification 111 ', wherein opereating specification 111 ' is determined according to reference to dot image 113 ' Justice.

In addition, processing unit 12 also can directly calculate the using the image space of reference point image 113 ' as origin certainly Position vector (or coordinate) of the one digitized video F1 central point "+" in opereating specification 111 '.Simply for ease of calculating, respectively should First point coordinatesWithShould be calculated according to same mode, e.g. all according to when reference point in a digitized video Image is origin, or the central point for all opening opereating specification in digitized video according to working as is origin.

In step S311, the image space of reference point 21 of the processing unit 12 in continuous number image, which calculates, to be held The displacement of formula indicator device 10 or according to the pressed state of push-button unit 16 come judge hand-held indicator device 10 whether from Unlocking point location pattern.When processing unit 12 judges that hand-held indicator device 10 leaves lock point location pattern, step is performed S313.Conversely, when processing unit 12 judges that hand-held indicator device 10 not yet leaves lock point location pattern, step is returned to S311。

In step S313, the shadow of the corresponding position of reference point 21 of the extraction of Extraction of Image unit 11 of hand-held indicator device 10 Picture, and the second digitized video F2 is produced, as shown in Figure 4 C.Second digitized video F2 extraction time is later than the first digitized video F1 Extraction time.

Then, in step S315, processing unit 12 can calculate the ginseng of corresponding reference point 21 according to the second digitized video F2 Examination point image 113 is corresponding to calculate the second point coordinates in the second digitized video F2 image spaceAs shown in Figure 4 C, second Point coordinatesRepresent that the central point "+" that array is sensed in Extraction of Image unit 11 is mapped in the second numeral in display device 20 Image F2 opereating specification 111a sensing position vector, and the second point coordinatesFor (x2, y2).Second point coordinates Be processing unit 12 by the use of opereating specification 111a central point 1111a as origin, to calculate the second digitized video F2 center For point "+" in opereating specification 111a sensing position vector, wherein opereating specification 111a is defined according to reference point image 113a 's.

Then, processing unit 12 calculates and produces the first point coordinatesWith the second point coordinatesBetween movement to AmountIn other words, motion-vectorFor the first point coordinatesWith the second point coordinatesThe distance between.It is it is, mobile VectorRepresent hand-held indicator device 10 between the first digitized video F1 and the second digitized video F2 with display device 20 it Between relative shift.Motion-vectorCalculation can be for example the second point coordinatesWith the first point coordinates Produced by subtracting each other.

In step S317, processing unit 12 is according to motion-vectorAnd first point coordinatesCalculate the light of cursor 23 Position is demarcated, to compensate the first point coordinatesWith the second point coordinatesBetween offset.

Then, processing unit 12 correspondingly produces the cursor parameter that control cursor 23 moves according to result of calculation.Processing is single Cursor parameter is simultaneously wirelessly communicated to display device 20 by member 12 using communication unit 13, controls cursor 23 to move with corresponding It is dynamic.

Special instruction, the reference point image 113,113 ', 113a are in this article if Fig. 4 A~4C are with one respectively Round dot represents, but reference point image 113,113 ', 113a can also cross or asterisk etc. represent that the present embodiment is simultaneously unlimited System., can be with those in digitized video in addition, when if the interaction systems in Fig. 2 use two or more reference points 21 Average coordinates between the position of reference point image are used as in digitized video the position of reference point image 113 in the present embodiment. In addition, the processing unit 12 of hand-held indicator device 10 can also set the default of reference point image 113 according to such reference point 21 Imaging parameters and default image-forming range parameter, to be compensated to the position result of calculation of reference point image 113.

For example, processing unit 12 can utilize imaging parameters, as these extraction reference point lines and central points form the One angle and the default imaging parameters line of reference point image are formed with reference to angle to calculate hand-held indicator device with central point 10 anglec of rotation.The processing unit 12 of hand-held indicator device 10 can be calculated using image-forming range parameter reference point image with The proportional manner between image-forming range parameter is preset to compensate the position deviations caused by camera distance difference.Skill of the present invention The technical staff in art field should know how to set default imaging parameters with default image-forming range parameter and join using picture is preset to Number compensates with default image-forming range parameter to the position result of calculation of reference point image 113, therefore repeats no more.

It is described further below for the execution flow details of relative positioning mode in above-mentioned cursor positioning method.Please Reference picture 5 and referring concurrently to Fig. 1, Fig. 2 and Fig. 6 A to Fig. 6 E.Fig. 5 illustrates hand-held finger provided in an embodiment of the present invention to dress The schematic flow sheet for the relative mode positioning cursor method put.Fig. 6 A are that hand-held indicator device provided in an embodiment of the present invention moves The reference point locations change sensed when dynamic and the schematic diagram of change in location of the cursor on display device picture.Fig. 6 B are the present invention The schematic diagram of the reference point locations change sensed during the hand-held indicator device movement that embodiment provides.Fig. 6 C~Fig. 6 D are painted respectively Show the reference point locations change sensed during hand-held indicator device movement provided in an embodiment of the present invention with cursor in display device The schematic diagram of change in location on picture.Fig. 6 E are cursor provided in an embodiment of the present invention change in location on display device picture Schematic diagram.

In step S501, when processing unit 12 judges that hand-held indicator device 10 leaves lock point location pattern, processing Unit 12 makes hand-held indicator device 10 enter relative positioning mode with even if point coordinates correction program is started.

In step S503, it as N, compensation vector is C and starting point coordinate that processing unit 12, which sets number of corrections, Number of corrections will be N by processing unit 12, compensation vector is C and starting point coordinateIt is temporarily stored into memory cell 15.It is described Starting point coordinateFor the first point coordinates shown in Fig. 6 AFirst point coordinatesI.e. such as foregoing is that processing is single Member 12 is being operated by the use of the central point 1111 of opereating specification 111 as origin to calculate the first digitized video F1 central point "+" The sensing position vector of scope 111, wherein opereating specification 111 are according to defined in the image space of reference point image 113.

Processing unit 12 can be the image sampling frequency or preset time inputted according to user by input block 14 To set N.In an embodiment, user for example can be set in five digitized videos and complete according to image sampling frequency Point coordinates correction program, then it is 5 that processing unit 12, which can be correspondingly arranged N,.And in another embodiment, user can for example set Fixed one default correction time be 5 seconds (even if also hand-held finger completed point coordinates correction program to device 10 in 5 seconds) and Image sampling frequency is 5 digitized videos per second, then processing unit 12 can be correspondingly arranged N as 25.

In addition, processing unit 12 is by by motion-vectorDivided by N, to obtain C, wherein C calculation formula is as follows：

Wherein, C represents compensation vector；Represent motion-vector；Represent the first point coordinates；Represent that second points to Coordinate；N represents number of corrections.As shown in formula (1), N is bigger to represent that compensated C values can be smaller each time；And the smaller i.e. tables of N Show that compensated C values can be bigger each time.It is noted that second point coordinatesIt is that processing unit 12 utilizes Fig. 6 B Shown opereating specification 111b central point 1111b is as origin, to calculate the second digitized video F2 of extraction central point "+" In opereating specification 111b sensing position vector, wherein opereating specification 111b is according to defined in reference point image 113b.

In step S505, processing unit 12 calculates point coordinates displacement caused by the movement of hand-held indicator device 10. Processing unit 12 can as shown in Figure 6B, by extracting the 3rd digitized video, and according to the reference point image 113c of reference point 21 In the 3rd digitized video F3 image space defining operation scope 111c.Then, processing unit 12 recycles opereating specification 111c Central point 1111c as origin, calculate the 3rd digitized video F3 central point "+" opereating specification 111b sensing position to Amount, produce the 3rd point coordinates

3rd point coordinatesRepresent and the center (i.e. central point "+") of array is sensed in Extraction of Image unit 11 exist The point coordinates position of the coordinate system of display device 20 is corresponded in 3rd digitized video F3, and as shown in Figure 6B, the 3rd points to CoordinateIt show (x3, y3).Then, processing unit 12 is according to the second point coordinatesWith the 3rd point coordinatesCalculate Point coordinates displacement caused by the movement of hand-held indicator device 10Wherein described point coordinates displacementFor hand-held Point coordinates displacement caused by indicator device 10 is mobile in relative positioning mode.And the 3rd digitized video F3 extraction time It is later than above-mentioned second digitized video F2 extraction time.

Then, in step S507, processing unit 12 calculates starting point coordinateThe sensing of hand-held indicator device 10 Coordinate displacement amountWith C summation, to obtain relative point coordinates, as shown in Figure 6 C.With respect to point coordinatesCalculating side Formula is as follows：

In step S509, processing unit 12 is according to relative point coordinatesProduce and export corresponding control cursor 23 In the cursor parameter of display device 20.Processing unit 12 can export cursor parameter make cursor 23 by the corresponding translation of home position it is dynamic away from From d1, as shown in Figure 6 C.

Meanwhile in step S511 and step S513, processing unit 12 sets starting point coordinateSat for relative point to MarkAnd perform N-1 (that is, number of corrections of successively decreasing).Processing unit 12 and by the relative point coordinates after settingWith N after successively decreasing is stored in memory cell 15.Processing unit 12 with after judge in step S515 N whether be equal to zero, that is, judge Whether point coordinates correction program is completed.

If processing unit 12 judges that N is equal to zero, that is, during completion point coordinates correction program, performs step S517.Conversely, If processing unit 12 judges N and not equal to zero, that is, when not yet completing point coordinates correction program, processing unit 12 returns to step S505.That is, again extraction and the 4th point coordinates in the 4th digitized video F4Calculate hand-held indicator device 10 Point coordinates displacement caused by movementWith relative point coordinatesThe steps such as N-1, make the translation distance d1 of cursor 23 To corresponding relative point coordinatesCorresponding sensing position, as shown in Figure 6 D.

More specifically, processing unit 12 can produce formula (3) according to formula (2), to calculate relative point coordinates

Wherein,For the relative point coordinates of last computation；Represent when time sensing of hand-held indicator device 10 is sat Marker displacement amount, that is, the 3rd point coordinatesWith the 4th point coordinatesBetween motion-vector, and C is fixed value.

Then, processing unit 12 re-executes step S505~S515 again, sequentially extracts N-2 digitized videos and (does not paint Show), to calculateBy that analogy, until N is equal to zero.

When processing unit 12 completes point coordinates correction program, cursor 23 can be drawn by display device 20 as illustrated in fig. 6e Corresponding first point coordinates on facePosition movement n times reach the current sensing position of hand-held indicator device 10, it is and each Secondary cursor 23 can correspond to and translate calculated distance.In other words, cursor 23 can be referred on the picture of display device 20 by corresponding first To coordinatePosition translation distance d, reach finger of the corresponding hand-held indicator device 10 of reference point 21 in N digitized videos To position.

Then, in step S517, processing unit 12 makes hand-held indicator device 10 leave relative positioning mode into absolutely To station-keeping mode, processing unit 12 will be positioned with absolute fix mode computation cursor.

That is, in relative positioning mode, hand-held indicator device 10 can point to when subsequent movement based on first CoordinateAs starting point, and coordinate the first point coordinatesWith the second point coordinatesBetween motion-vectorAnd hand Formula indicator device 10 is held in point coordinates displacement caused by timing movementEnter the location Calculation of line cursor 23.Accordingly, hand Holding formula indicator device 10 can be such that cursor 23 is smoothly moved within default correction time or number after lock point location pattern is left To the position pointed by current hand-held indicator device 10, use and avoid that hop situation occurs and maintain directive property.

It is noted that in relative positioning mode, hand-held indicator device 10 also can not be by hand-held indicator device 10 in point coordinates displacement caused by timing movementCorrection is added to calculate.Specifically, hand-held indicator device 10 can When subsequent movement, the first point coordinates work is based only uponFor starting point, and coordinate the first point coordinatesPoint to and sit with second MarkBetween motion-vector(i.e. the point coordinates displacement caused by time mobile of hand-held indicator device 10) corrects Calculate.

In fact, can be by the cursor positioning method that corresponding above-mentioned Fig. 3 is designed on microcontroller or embedded controller And the procedure code of Fig. 5 relative positioning computational methods, so that Fig. 3 cursor positioning method is performed when running by processing unit 12 And Fig. 5 relative positioning computational methods, but the present embodiment is not intended to limit.

In addition, Fig. 3 is only used for describing a kind of cursor positioning method of hand-held indicator device 10, therefore Fig. 3 and it is not used to limit The fixed present invention.Similarly, Fig. 5 is only used for describing a concrete mode of the calculating relative positioning of hand-held indicator device 10 and is not used to Limit the present invention.Center of the opereating specification of display device 20 with sensing array in Extraction of Image unit 11 is corresponded to for convenience of description The relation between "+" is put, opereating specification is only illustrative purposes in Fig. 4 A~Fig. 4 C, and is not used to the limitation present invention.To be illustrated It is that Fig. 4 A~Fig. 4 C and Fig. 6 A to Fig. 6 E are respectively only coordinating Fig. 3 and Fig. 5 to illustrate the running side of hand-held indicator device 10 Formula and cursor location Calculation mode, are also not limited to the present invention.

(another embodiment of the cursor positioning method of hand-held indicator device)

By the above embodiments, the present invention can separately summarize a kind of cursor positioning method, and the method can be applied suitable for upper State the hand-held indicator device in embodiment interaction systems.It refer to Fig. 7 and illustrate this hair referring concurrently to Fig. 1 and Fig. 2, Fig. 7 The schematic flow sheet for the hand-held indicator device cursor positioning method that bright another embodiment provides.

The cursor positioning of hand-held indicator device 10 is implemented in described in Fig. 7 to be realized with firmware program design mode, And performed by the processing unit 12 of hand-held indicator device 10.

First, in step S701, the Extraction of Image unit 11 of hand-held indicator device 10 is in hand-held indicator device 10 When pointing to the position of a reference point 21, the first digitized video of reference point 21 is extracted.

Secondly, in step S703, processing unit 12 calculates according to image space of the reference point 21 in the first digitized video Hand-held indicator device 10 points to the first point coordinates of display device 20.

Thereafter, in step S705, processing unit 12 is positioned with absolute fix mode computation cursor, is pointed to and is sat according to first Mark produces the cursor parameter that corresponding control cursor 23 is located at display device 20.Detailed calculation cursor position control mode is with before It is identical to state embodiment, therefore repeats no more.

Then, in step S707, processing unit 12 judges whether to enter lock point location pattern.It has been observed that processing unit 12 can be according to displacement of the reference point image 113 in multiple continuous number images or pressing according to hand-held indicator device 10 Whether key unit 16 is pressed to judge whether hand-held indicator device 10 enters lock point location pattern.

When processing unit 12 judges that hand-held indicator device 10 enters lock point location pattern, step S709 is performed.Conversely, When processing unit 12 judges that hand-held indicator device 10 still operates on absolute fix pattern, step S701 is come back to.

In step S709, processing unit 12 records the first point coordinates memory cell 15.Meanwhile processing unit 12 passes through Communication unit 13 fixes the cursor parameter of corresponding first point coordinates of output or does not export any cursor parameter to display device 20, cursor 23 is fixed on display device 20.

In step S711, processing unit 12 can be according to the displacement in continuous number image or according to push-button unit 16 Pressed state come judge hand-held indicator device 10 whether leave lock point location pattern.When processing unit 12 judges hand-held finger When leaving lock point location pattern to device 10, step S713 is performed.Conversely, when the processing unit 12 of hand-held indicator device 10 is sentenced Determine hand-held indicator device 10 not yet leave lock point location pattern when, return to step S711.

In step S713, when hand-held indicator device 10 leaves lock point location pattern, processing unit 12 can make to hold Formula indicator device 10 is when subsequent movement, based on the first point coordinates as starting point, and coordinates hand-held indicator device 10 Point coordinates displacement enters the location Calculation of line cursor 23 caused by movement.

Then, processing unit 12 can accordingly produce the cursor parameter that control cursor 23 moves according to result of calculation.Place Cursor parameter is simultaneously wirelessly communicated to display device 20 by reason unit 12 by communication unit 13, and cursor 23 is controlled with corresponding Action on the picture of display device 20.

Fig. 7 is only used for describing a kind of cursor positioning method of hand-held indicator device 10, therefore Fig. 7 is not limited to this hair It is bright.Those skilled in the art can also select to judge to enter or leave the lock point location according to actual operation demand The judgment mode of pattern.In above-described embodiment the cursor method for calculating and locating of relative positioning mode can in performing in step S713, Correction cursor 23 positions within default correction time in a manner of relative positioning for execution simultaneously.

(embodiments of the determination methods for entering lock point location pattern of hand-held indicator device)

By the above embodiments, the present invention can separately summarize one kind and judge that hand-held indicator device enters lock point location pattern Method, the method can apply hand-held indicator device suitable for above-described embodiment interaction systems.It refer to Fig. 8 and simultaneously Reference picture 1 and Fig. 9 A to Fig. 9 B, the hand-held indicator device that Fig. 8 illustrates one embodiment of the invention offer enter lock point location mould The schematic flow sheet of formula method.Whether Fig. 9 A to Fig. 9 B are illustrated respectively provided in an embodiment of the present invention judges hand-held indicator device Into the schematic diagram of sensing reference point position movement change during lock point location pattern.

First, in step S801, the processing unit 12 of hand-held indicator device 10 judges whether push-button unit 16 is made User presses.It is, processing unit 12 judges whether the user of hand-held indicator device 10 utilizes push-button unit Final 16 system Hand-held indicator device 10 enters lock point location pattern.

When processing unit 12 judges to enter lock point location pattern by hand-held indicator device 10, (such as push-button unit 16 is used Person presses) when, perform step S811.Conversely, when processing unit 12 judges the person of being not used by of push-button unit 16 pressing, perform rapid S803。

In step S803, processing unit 12 drives Extraction of Image unit 11 according to the extraction pair of default image sampling frequency The image of reference point locations is answered, and sequentially produces multiple digitized videos.

Then, in step S805 and as shown in Fig. 9 A digitized video F5, the processing list of hand-held indicator device 10 Member 12 is according to the image space of reference point in the digitized video, the change in displacement of calculating hand-held indicator device 10, Yi Jiji Calculate the motion-vector between the point coordinates。

In step S807, processing unit 12 can obtain motion-vector according to result of calculation, judge hand-held finger to dress Put whether point coordinates displacement caused by 10 movements is less than a preset displacement threshold value (being, for example, zero).When processing unit 12 judges Point coordinates displacement caused by the movement of hand-held indicator device 10 is less than preset displacement threshold value, performs step S809.Conversely, place Reason unit 12 judges that point coordinates displacement caused by the movement of hand-held indicator device 10 is more than preset displacement threshold value, returns to step S801。

In step S809, processing unit 12 is according to the motion-vector for calculating acquisitionJudge that hand-held indicator device 10 connects Whether different continue mobile direction.As illustrated in figs. 9a and 9b, processing unit 12 can be according to corresponding reference point in digitized video The image space of reference point image 115, calculate and obtain the central point "+" that array is sensed in Extraction of Image unit 11 in being mapped in number Point coordinates in the opereating specification 111d of display device are corresponded in word image F5 toward moving to right, and in the digitized video of subsequent extracted Shown in the point coordinates of opereating specification 111e defined in F6, from the right side toward moving to left, that is, represent that hand-held indicator device 10 is continuously past Move left and right.Wherein digitized video F6 extraction time is later than digitized video F5.So as to which processing unit 12 can determine whether hand-held finger It is different to the direction of the continuous moving of device 10, and perform step S811.Conversely, if processing unit 12 judges hand-held finger to dress It is identical to put the direction of 10 continuous movings, then performs step S801.

In step S811, processing unit 12 makes hand-held indicator device 10 enter lock point location pattern, so that cursor is consolidated Due on the picture of display device 20.

It is worth noting that, after hand-held indicator device 10 enters lock point location pattern, processing unit 12 can be by sentencing The pressed state of disconnected push-button unit 16, hand-held indicator device 10 is set to leave lock point location pattern.Or processing unit 12 can lead to The change in displacement for judging reference point 21 is crossed, judges whether point coordinates displacement caused by the movement of hand-held indicator device 10 is big In preset displacement threshold value.Processing unit 12 simultaneously can be big in point coordinates displacement caused by the judgement movement of hand-held indicator device 10 In preset displacement threshold value, hand-held indicator device 10 is set to leave lock point location pattern.

In addition, Fig. 8 is only used for describing a kind of determination methods for entering lock point location pattern of hand-held indicator device 10, therefore Fig. 8 is not limited to the present invention.Those skilled in the art also can according to actual operation demand, select judge into Enter to lock the mode of point location pattern.In other words, in fact, step S807 (i.e. the displacement variable of hand-held indicator device 10), Step S809 (i.e. the moving direction of hand-held indicator device 10) can choose whether to perform simultaneously or only according to actual operation demand Perform one of them.In addition, above-mentioned preset displacement threshold value can apply sets itself, this reality according to actual hand-held indicator device 10 Example is applied to be not intended to limit.

(another embodiment of the relative mode location Calculation of hand-held indicator device)

The present invention separately provides a kind of point coordinates according to calculating and judges whether reference point exceeds the method for an opereating specification, The method can apply the hand-held indicator device suitable for above-described embodiment interaction systems.It refer to Figure 10 and referring concurrently to figure 1 and Figure 11 A to Figure 11 D.Figure 10 illustrates the schematic flow sheet of the boundary-correction method of one embodiment of the invention offer.Figure 11 A Illustrate the reference point locations change sensed during hand-held indicator device movement provided in an embodiment of the present invention and light respectively to Figure 11 D It is marked on the schematic diagram of the change in location of display device.

Hand-held indicator device 10 is implemented in described in Figure 10 judges whether reference point can beyond the method for an opereating specification With firmware program design mode to realize, and performed by the processing unit 12 of hand-held indicator device 10.Processing unit 12 May be, for example, that the process chips such as microcontroller or embedded controller are arranged at hand-held indicator device 10, but the present embodiment is not Limitation.

It is corresponding with default displaying ratio to be located at the opereating specification 111 in the first digitized video F1 shown in Figure 11 A to Figure 11 D In display device 20.As shown in Figure 11 A to Figure 11 D, opereating specification 111 is boundary in the first axial DE1 along display device 20 Between the axial DE1 of first axle higher limit Y_MAX and first first axle lower limit Y_MIN and boundary is in along the of display device 20 Region between two axial DE2 the second axle higher limit X_MAX and the second axial DE2 the second axle lower limit X_MIN.

The first axle higher limit Y_MAX corresponds to the first display side 201 of display device 20.The first axle lower limit Value Y_MIN corresponds to the second display side 203 of display device 20.The second axle higher limit X_MAX corresponds to display device 20 the 3rd display side 205.The second axle lower limit X_MIN corresponds to the 4th display side 207 of display device 20.

Method described in Figure 10 it is applicable in Fig. 3 and Fig. 5 is performed according to reference point image 117 in the first digitized video F1 Image space and by the use of the central point 1111 of opereating specification 111 as origin calculate hand-held indicator device 10 first refer to To coordinateAfterwards, that is, the first point coordinates are judgedWhether beyond the opereating specification for corresponding to the indication range of display device 20 111.First point coordinatesInclude the first axial coordinate and the second axial coordinate in the present embodiment.First axial coordinate is located In on the first axial DE1, and the second axial coordinate is seated on the second axial DE2.

First, in step S1001, the processing unit 12 of hand-held indicator device 10 is according to the first point coordinatesSentence Disconnected first point coordinatesWhether exceed outside the opereating specification 111 in the first digitized video F1.It is, processing unit 12 According to the first point coordinatesJudge whether the center (i.e. central point "+") that array is sensed in Extraction of Image unit 11 is located at first Corresponded in digitized video F1 outside the opereating specification 111 of display device 20.

When processing unit 12 judges the first point coordinatesPositioned at opereating specification 111 it is outer when, perform step S1005.Instead It, when processing unit 12 judges the first point coordinatesWhen in the opereating specification 111 in the first digitized video F1, perform Step S1003.

In step S1003, processing unit 12 is according to the first point coordinatesCorresponding control cursor 33 is produced positioned at display The cursor parameter of device 20.Processing unit 12 simultaneously exports corresponding first point coordinates by communication unit 13Cursor parameter To display device 20, so that cursor 33 is located at position corresponding on the picture of display device 20.

And in step S1005, processing unit 12 is according to the first point coordinatesJudge the first point coordinates Whether one axial coordinate is more than the first axle higher limit Y_MAX of opereating specification 111.When processing unit 12 judges the first point coordinatesThe first axial coordinate (such as Figure 11 A) be more than opereating specification 111 first axle higher limit Y_MAX when, perform step 1007.Conversely, when processing unit 12 judges the first point coordinatesThe first axial coordinate be less than opereating specification 111 first axle During higher limit Y_MAX, step 1009 is performed.

In step S1007, as shown in Figure 11 A, processing unit 12 exports cursor parameter by communication unit 13 makes cursor 33 in the first axial DE1 moving direction be affixed to display device 20 first display side 201 and cursor 33 in the second axle To DE2 moving direction then according to the first point coordinatesThe second axial coordinate (such as according to the second axial coordinate in Figure 11 A X1) position.Then, processing unit 12 performs step S1013.

In step S1009, processing unit 12 is according to the first point coordinatesJudge the first point coordinatesFirst Whether axial coordinate is less than the first axle lower limit Y_MIN of opereating specification 111.When processing unit 12 judges the first point coordinates The first axial coordinate (such as Figure 11 B it) be less than opereating specification 111 first axle lower limit Y_MIN when, perform step 1011.Conversely, when processing unit 12 judges the first point coordinatesThe first axial coordinate be more than opereating specification 111 first axle During lower limit Y_MIN, step 1013 is performed.

In step S1011, as shown in Figure 11 B, processing unit 12 exports cursor parameter by communication unit 13 makes cursor 33 are affixed to the second display side 203 in the first axial DE1 moving direction.And cursor 33 is in the second axial DE2 movement Direction is then according to the first point coordinatesThe second axial coordinate (such as according to second axial coordinate in Figure 11 B) position.Then, Processing unit 12 performs step S1013.

In step S1013, processing unit 12 is according to the first point coordinatesJudge the first point coordinatesSecond Whether axial coordinate is more than the second axle higher limit X_MAX of opereating specification 111.When processing unit 12 judges the first point coordinates The second axial coordinate (such as Figure 11 C) be more than opereating specification 111 the second axle higher limit X_MAX when, perform step S1015.Conversely, when processing unit 12 judges the first point coordinatesThe second axial coordinate be less than opereating specification 111 second During axle higher limit X_MAX, step S1017 is performed.

In step S1015, as shown in Figure 11 C, processing unit 12 exports cursor parameter by communication unit 13 makes cursor 33 in the second axial DE2 moving direction be affixed to the 3rd display side 205.And cursor 33 is in the first axial DE1 movement Direction is then according to the first point coordinatesThe first axial coordinate (such as according to first axial coordinate y1 in Figure 11 C) position.

And in step S1017, processing unit 12 determines the first point coordinatesThe second axial coordinate (such as Figure 11 D 's) exceed the second axle lower limit X_MIN of opereating specification 111, and cursor is made by the output of communication unit 13 cursor parameter 33 in the second axial DE2 moving direction be affixed to the 4th display side 207.And cursor 33 is in the first axial DE1 movement Direction is then according to the first point coordinatesThe first axial coordinate (such as according to first axial coordinate y1 in Figure 11 D) position.

In short, Figure 10 method is adapted for carrying out after calculating point coordinates according to digitized video, to judge that cursor is It is no to be located at outside the indication range of display device 20.Filled in addition, Figure 10 method will may exceed corresponding display in cursor 33 When putting a border of 20 indication range, by fixed cursor 33 in the border, boundary coordinate correction program is completed.

It is worth noting that, the present embodiment only explains cursor edge correction mode with the first point coordinates, but it is actual The processing unit of upper hand-held indicator device can obtain according to digitized video (such as the second digitized video and the 3rd digitized video) After the point coordinates (such as the second point coordinates and the 3rd point coordinates) for taking corresponding reference point locations, Figure 10 method pair is utilized Should detect calculating point coordinates whether the opereating specification exceeded in digitized video, and in entering row bound school beyond opereating specification Just.

Figure 10 is only used for the method for describing a kind of carry out edge correction of hand-held indicator device 10, therefore Figure 10 and is not used to Limit the present invention.Those skilled in the art also can be according to actual operation demand, according to the display of display device 20 The opereating specification 111 of the digitized video of range set first, that is, first axle higher limit Y_MAX, first axle lower limit Y_MIN, Two axle higher limit X_MAX and the second axle lower limit X_MIN.

(the another embodiment of the cursor positioning method of hand-held indicator device)

By the above embodiments, the present invention could also generalize to a kind of cursor positioning method, and the method can be applied suitable for upper State the hand-held indicator device in embodiment interaction systems.It refer to Figure 12 and illustrate this referring concurrently to Fig. 1 and Fig. 2, Figure 12 Invent the schematic flow sheet for the hand-held indicator device cursor positioning method that another embodiment provides.

The cursor positioning of hand-held indicator device 10 is implemented in described in Figure 12 to be realized with firmware program design mode, And performed by the processing unit 12 of hand-held indicator device 10.

In step S1201, the Extraction of Image unit 11 of hand-held indicator device 10 can extract reference point in the very first time 21 the first digitized video, unit 12 for processing calculate hand-held according to image space of the reference point 21 in the first digitized video Indicator device 10 points to the first point coordinates of display device 20.Processing unit 12 is simultaneously corresponding by cursor according to the first point coordinates 23 display location is fixed on the first point coordinates, so that hand-held indicator device 10 enters lock point location pattern.

Further say, processing unit 12 can produce corresponding control cursor 23 according to the first point coordinates and be located at display device The cursor parameter of 20 display location.More specifically, processing unit 12 can fix output by communication unit 13 to correspond to The cursor parameter of first point coordinates or any cursor parameter is not exported to display device 20, cursor 23 is fixed on the first finger To coordinate.The detailed calculation location mode cursor position control mode of cursor 23 is identical with previous embodiment, therefore repeats no more.

In step S1203, processing unit 12 then makes hand-held indicator device 10 from the lock point location in the second time Pattern.Processing unit 12 can extract the second digitized video of reference point 21 in the second time driving Extraction of Image unit 11, with root The second finger of the sensing display device 20 of hand-held indicator device 10 is calculated in the image space of the second digitized video according to reference point 21 To coordinate.Wherein described second time be after the first time, that is, the extraction time of the second digitized video is later than the first number The extraction time of word image.

In step S1205, processing unit 12 calculates first according to the first point coordinates and the second point coordinates and points to seat The first motion-vector between mark and the second point coordinates.

Then, in step S1207, processing unit 12 calculates according to the first motion-vector produces unit compensation vector.Place Managing unit 12 can be as in the foregoing embodiment according to default number of corrections or correction time come unit of account compensation vector.Such as Hand-held indicator device 10 can be by vectorial by the first motion-vector divided by number of corrections or correction time, generation unit compensation. The number of corrections or correction time can be set according to image sampling frequency or preset time.

Then, in step S1209, processing unit 12 can extract reference point in the 3rd time driving Extraction of Image unit 11 21 the 3rd digitized video, referred to calculating hand-held indicator device 10 in the image space of the 3rd digitized video according to reference point 21 To the 3rd point coordinates of display device 20.Processing unit 12 will start foregoing point coordinates in the 3rd time and correct journey Sequence, and cursor 23 is calculated with relative positioning mode and positioned.Wherein the 3rd time is that is, the 3rd digital shadow after the second time The extraction time of picture is later than the extraction time of the second digitized video.

In step S1211, processing unit 12 can calculate the 3rd point coordinates and second in the 3rd time and point to seat simultaneously The second motion-vector between mark.Processing unit 12 can be by calculating displacement between the 3rd point coordinates and the second point coordinates Distance, to obtain the second motion-vector.

In step S1213, hand-held indicator device 10 is then according to the first point coordinates, unit compensation vector and second Motion-vector calculates cursor 23 in the 3rd time in the display location of display device 20.Specifically, hand-held finger is to dress The cursor parameter that control cursor 23 moves can accordingly be produced according to result of calculation by putting 10.Processing unit 12 passes through communication unit Cursor parameter is wirelessly sent to display device 20 by 13, controls cursor 23 in the 3rd time in display device 20 with corresponding Display location on picture.

Then, hand-held indicator device 10 is completed to perform relative positioning mode in the 4th time, and in the 4th time with exhausted Cursor positioning is calculated station-keeping mode.In step S1215, fourth number of the processing unit 12 in the 4th time extraction reference point 21 Word image, display device is pointed to calculate hand-held indicator device 10 in the image space of the 4th digitized video according to reference point 21 20 the 4th point coordinates.Wherein the 4th time be after the 3rd time, that is, the extraction time of the 4th digitized video is later than The extraction time of 3rd digitized video.And the time span between the 4th time and the 3rd time then can be according to above-mentioned number of corrections Or correction time configures.The specific executive mode of the relative positioning mode is identical with previous embodiment, therefore repeats no more.

In step S1217, processing unit 12 can calculate the cursor in the 4th time in aobvious according to the 4th point coordinates The display location of showing device 20.

In step S1219, processing unit 12 produces according to result of calculation and exports corresponding control by communication unit 13 Cursor parameter of the cursor 23 in the display location of the 4th time.Hand-held indicator device 10 simultaneously wirelessly passes cursor parameter Display device 20 is delivered to, with the corresponding display location for controlling cursor 23 in the 4th time on the picture of display device 20.

It is noted that processing unit 12 can will calculate the first point coordinates, the second point coordinates, the 3rd sensing Coordinate, the 4th point coordinates, the first motion-vector, the second motion-vector and unit compensation vector are recorded in memory cell respectively 15.In addition, those skilled in the art also can add Figure 10 according to actual operation demand using firmware design method Described judges whether reference point 21 exceeds the method for opereating specification in processing unit 12.It is, processing unit 12 can counted When calculating the first point coordinates, the second point coordinates, the 3rd point coordinates and four point coordinates, automatically according to these sensings The first axial coordinate and the second axial coordinate of coordinate judge whether reference point 21 exceeds opereating specification, use and avoid cursor 23 beyond aobvious The picture of showing device 20.It is noted that Figure 12 is only used for describing a kind of cursor positioning method of hand-held indicator device 10, therefore Figure 12 is not limited to the present invention.

By the above embodiments, the present invention could also generalize to a kind of cursor positioning method, and the method can be applied suitable for upper State the hand-held indicator device in embodiment interaction systems.It refer to Figure 13 and illustrate this referring concurrently to Fig. 1 and Fig. 2, Figure 13 The schematic flow sheet for the hand-held indicator device cursor positioning method that invention another embodiment provides.

The cursor positioning of hand-held indicator device 10 is implemented in described in Figure 13 to be realized with firmware program design mode, And performed by the processing unit 12 of hand-held indicator device 10.

In step S1301, the Extraction of Image unit 11 of hand-held indicator device 10 can extract corresponding ginseng in the very first time First digitized video of examination point 21, with according to reference point 21 the first digitized video image space calculate produce hand-held finger to Device 10 points to the first point coordinates of display device 20.Hand-held indicator device 10 is simultaneously corresponding by light according to the first point coordinates The display location of mark 23 is fixed on the first point coordinates, locks point location pattern to enter.

In step S1303, Extraction of Image unit 11 can then extract the second digital shadow of reference point 21 in the second time Picture, display device 20 is pointed to calculate hand-held indicator device 10 in the image space of the second digitized video according to reference point 21 Second point coordinates, make hand-held indicator device 10 from the lock point location pattern.Second time be after the first time, That is, second extraction time of digitized video be later than extraction time of the first digitized video.

In step S1305, the processing unit 11 of hand-held indicator device 10 points to according to the first point coordinates and second Coordinate calculates the first motion-vector between the first point coordinates and the second point coordinates.

Then, in step S1307, processing unit 11 can calculate according to the first motion-vector and produce unit compensation vector. Hand-held indicator device 10 can compensate according to default number of corrections or correction time come unit of account as in the foregoing embodiment Vector.Such as hand-held indicator device 10 can be by by the first motion-vector divided by number of corrections or correction time, producing unit Compensation vector.

Then, in step S1309, when processing unit 11 understands subsequent movement after the second time, refer to based on first It is starting point to coordinate, according to unit compensation vector and point coordinates displacement caused by coordinating the movement of hand-held indicator device 10 Measure the location Calculation into line cursor 23.Specifically, processing unit 11 can start foregoing point coordinates correction in the 3rd time Program, hand-held indicator device 10 is calculated cursor 23 with relative positioning mode and position.The specific of the relative positioning mode is held Line mode is identical with previous embodiment, therefore repeats no more.

In step S1311, processing unit 11 can accordingly produce the light that control cursor 23 moves according to result of calculation Mark parameter.Cursor parameter is simultaneously wirelessly sent to display device 20 by processing unit 11 by communication unit 13, with corresponding Control display location of the cursor 23 in the 3rd time on the picture of display device 20.

It is worth noting that, Figure 13 is only used for describing a kind of cursor positioning method of hand-held indicator device 10, not use To limit the present invention.

(possibility effect of embodiment)

In summary, the embodiment of the present invention provides a kind of cursor positioning method of hand-held indicator device, the positioning of this cursor Method can judge actively by detecting mobile change of the reference point in the image space calculating hand-held indicator device of digitized video Whether hand-held indicator device enters lock point location pattern.The cursor positioning method simultaneously can leave lock in hand-held indicator device During point location pattern, can by hand-held indicator device leave lock point location pattern when, actively by switching cursor positioning mould Formula is in absolute fix or relative positioning mode, to avoid that hop situation occurs.

In addition, the cursor positioning method and can detect cursor may because reference point exceed digitized video operation model When enclosing, and during beyond the display border of display device, absolute fix coordinate to reference point carries out edge correction.

Accordingly, the operating mode that cursor positioning method provided by the invention can be by active according to hand-held indicator device, The absolute fix coordinate of reference point detected by corresponding correction, meanwhile, the directive property of hand-held indicator device can be also maintained, and then Can improve the operational convenience of user with stably.

Embodiments of the invention are the foregoing is only, it is simultaneously not used to the scope of the claim of the limitation present invention.

Claims

A kind of 1. cursor positioning method of hand-held indicator device, it is characterised in that including：

One first point coordinates are produced in a very first time, and according to the corresponding display position by a cursor of first point coordinates Put and be fixed on first point coordinates；

One second point coordinates are produced in one second time, wherein second time is after the very first time；

Calculate one first motion-vector between first point coordinates and second point coordinates；

One unit compensation vector is produced according to first motion-vector；

One the 3rd point coordinates are produced in one the 3rd time, wherein the 3rd time is after second time；

Calculate one second motion-vector between the 3rd point coordinates and second point coordinates；And

The cursor is calculated in the 3rd time with second motion-vector according to first point coordinates, unit compensation vector The display location.
2. cursor positioning method as claimed in claim 1, it is characterised in that also include：

One the 4th point coordinates are produced in one the 4th time, wherein the 4th time is after the 3rd time；

The cursor is calculated in the display location of the 4th time according to the 4th point coordinates；And

Produce to correspond to and control the cursor in a cursor parameter of the display location of the 4th time.
3. cursor positioning method as claimed in claim 1, it is characterised in that wherein according to first point coordinates, the unit Compensation vector calculates the cursor in the step of the display location of the 3rd time with second motion-vector, including：

Start a point coordinates correction program in the 3rd time, the hand-held indicator device is calculated with a relative positioning mode Cursor positions, and the wherein relative positioning mode is the hand-held finger to when being installed on subsequent movement, based on first point coordinates As starting point, and unit compensation vector is coordinated to carry out positioning meter of the cursor in the 3rd time with second motion-vector Calculate.
4. cursor positioning method as claimed in claim 3, it is characterised in that the step of wherein relative positioning mode performs, Including：

Step a set a number of corrections as N, the unit compensation vector is C and a starting point coordinate, wherein C for this first move Moving vector divided by N, and the starting point coordinate is first point coordinates；

Step b calculates second motion-vector according to the 3rd point coordinates；

Step c calculates the summation of the starting point coordinate, second motion-vector and C, to obtain a relative point coordinates；

Step d with respect to point coordinates, is produced and exported and corresponding control the cursor in the display location of the 3rd time according to this A cursor parameter；

Step e sets the starting point coordinate as the relative point coordinates and performs N-1；

Step f judges whether N is equal to zero；And

If step g N are not equal to zero, step b is returned to.
5. cursor positioning method as claimed in claim 1, it is characterised in that wherein show this of the cursor in the very first time Show that position is fixed in the step of first point coordinates, including：

Make the hand-held indicator device in the corresponding display location for controlling the cursor of fixed output in first point coordinates One cursor parameter, so that the cursor is fixed on first point coordinates in the very first time.
6. cursor positioning method as claimed in claim 1, it is characterised in that wherein show this of the cursor in the very first time Show that position is fixed in the step of first point coordinates, including：

Corresponding display location for controlling the cursor is not exported in a cursor parameter of first point coordinates, so that the cursor exists The very first time is fixed on first point coordinates.
7. cursor positioning method as claimed in claim 1, it is characterised in that wherein producing the step of first point coordinates After rapid, in addition to：

Judge whether first point coordinates exceed outside the opereating specification in first digitized video；

Wherein the first point coordinates position includes one first axial coordinate and one second axial coordinate, and the opereating specification is default aobvious with one Show that ratio corresponds to a display device, and the opereating specification be boundary between a first axle higher limit and a first axle lower limit with And region of the boundary between one second axle higher limit and one second axle lower limit, the first axle higher limit correspond to the display device One first display side, the first axle lower limit correspond to the display device one second display side, the second axle upper limit Value is corresponding to one the 3rd display side of the display device, one fourth display of the second axle lower limit corresponding to the display device Side.
8. cursor positioning method as claimed in claim 7, it is characterised in that wherein judging whether first point coordinates surpass Go out in the step outside the opereating specification, including：

When first axial coordinate is more than the first axle higher limit, the display of the hand-held indicator device output control cursor One cursor parameter of position makes the cursor be affixed to the first display side in first axle moving direction；

When first axial coordinate is less than the first axle lower limit, the hand-held indicator device, which exports the cursor parameter, makes the cursor The second display side is affixed in first axle moving direction；

When second axial coordinate is more than the second axle higher limit, the hand-held indicator device, which exports the cursor parameter, makes the cursor The 3rd display side is affixed in the second axle moving direction；And

When second axial coordinate is less than the second axle lower limit, the hand-held indicator device, which exports the cursor parameter, makes the cursor The 4th display side is affixed in the second axle moving direction.
A kind of 9. cursor positioning method of hand-held indicator device, it is characterised in that including：

One first point coordinates are produced in a very first time to enter a lock point location pattern, and by a display location of a cursor It is fixed on first point coordinates；

One second point coordinates are produced in one second time, to leave the lock point location pattern, wherein second time is at this After the very first time；

Calculate one first motion-vector between first point coordinates and second point coordinates；

One unit compensation vector is produced according to first motion-vector；And

Be starting point based on first point coordinates in the subsequent movement after second time, according to the unit compensation to The location Calculation measured and coordinate a point coordinates displacement caused by the movement of the hand-held indicator device to carry out the cursor.
10. cursor positioning method as claimed in claim 9, it is characterised in that wherein carry out the cursor second time it After the step of location Calculation afterwards, including：

A cursor parameter of the display location for controlling the cursor is accordingly produced according to result of calculation.
11. cursor positioning method as claimed in claim 9, it is characterised in that wherein carry out the light after second time In the step of target location Calculation, including：

In one the 3rd time, start a point coordinates correction program, make the hand-held indicator device in terms of a relative positioning mode Calculate cursor positioning, when wherein the relative positioning mode is the hand-held finger to the subsequent movement being installed on after second time, Based on first point coordinates as starting point, and coordinate the mobile generation of unit compensation vector and the hand-held indicator device The point coordinates displacement carry out location Calculation of the cursor in the 3rd time, wherein the point coordinates displacement refers to this Hand-held indicator device calculates the displacement of two point coordinates in continuous time.
12. cursor positioning method as claimed in claim 11, it is characterised in that the step that wherein relative positioning mode performs Suddenly, including：

Step a set a number of corrections as N, the unit compensation vector is C and a starting point coordinate, wherein C for this first move Moving vector divided by N, the starting point coordinate are first point coordinates；

Step b calculates the point coordinates displacement of the hand-held indicator device；

Step c calculates the starting point coordinate, the point coordinates displacement of the hand-held indicator device and C summation, to obtain One relative point coordinates；

Step d, with respect to point coordinates, is produced according to this and is exported the corresponding cursor for controlling the cursor to be located at display device ginseng Number；

Step e sets the starting point coordinate as the relative point coordinates and performs N-1；

Step f judges whether N is equal to zero；And

If step g N are not equal to zero, step b is returned to.