TWI461961B - Selection device and method for performing positioning operation to image area - Google Patents

Description

Selecting device and method for performing positioning operation on image area

The present invention relates to a selection device and method, and more particularly to an apparatus and method for selecting an image icon.

For a long time, the two-dimensional (2D) mouse that is used for motion on the desktop is generally operated by positioning the indicator on the computer screen (Cursor) to the icon (Icon) to be executed, and then continuously sliding. Left mouse button twice to perform the icon function. Please refer to the first figures (a) and (b), which are schematic diagrams of the selected configurations 911, 912 of the conventional icon selection system 91. As shown in the first diagram (a), the selection configuration 911 includes an image area 12, an image 13, a cursor 14 and a mouse 17. The image 13 is displayed in the image area 12, and the image 13 includes a plurality of icons 131, 132, 133, 134, 135, 136. The mouse 17 can be a two-dimensional (2D) plane mouse or a three-dimensional (3D) aerial mouse. . The conventional mouse 17 is operated on the selected icon 134 for the purpose of bringing the cursor 14 to the desired icon 134, so that the motion type is to cause the cursor 14 to perform X or Y unidirectional movement, or Segmental motion synthesized in both X and Y directions.

As shown in the first figure (b), the cursor 14 in the configuration 912 is selected to select the icon 131, and the motion track GA of the cursor 14 is generally composed of, for example, line segments A1, A2, A3, A4, A5, A6, A7, and A8 are combined.

Recently, as MEMS type accelerometers and gyroscopes have become more and more convenient to use, the so-called three-dimensional mouse that senses the movement of the hand in the air and selects the icon and performs its function by operating the computer screen index gradually becomes Was developed. However, compared with the two-dimensional mouse used in the desktop, the three-dimensional mouse has a major difference in operation. Because the two-dimensional mouse moves on the table, it is often supported. In this case, when the button is continuously pressed with the finger, the mouse does not move and the indicator on the screen deviates from the icon. However, when the handheld three-dimensional mouse is operated in the air, there is no other support, which causes that when the button is pressed continuously by the finger to perform the icon function, it is easy to deviate from the selected indicator on the screen due to the movement of the hand. The icon of the operation, causing errors in the implementation of operations, such as Logitech's product Air Mouse has this problem.

In order to overcome the above problems, some companies related to the 3D mouse / Air Mouse products, such as Gyration, have designed an Active Button to improve the movement of the indicator. Its practice is that when the three-dimensional mouse moves in the air and the actuation button is also pressed, the indicator on the screen will move with the movement of the mouse; when the indicator falls on the icon, the actuation button is released. After that, the indicator no longer moves with the movement of the mouse; at this time, pressing the button to execute the icon function, even if the mouse moves, but since the indicator on the screen has been disconnected from the movement of the mouse, the indicator It will be positioned on the icon, allowing it to perform the function successfully. Although this type of operation can make the operation of the function perform, the operation behavior is contrary to the ergonomic exercise habit, and the operation is not only discontinuous but also uncomfortable.

For the sake of his position, the inventor of the present invention, in view of the above-mentioned deficiencies of the prior art, has invented the "selection device and method" of the case through careful research and a perseverance.

One of the purposes of this case is to circle an area with a motion trajectory and to surround, pass, or cover an icon to be selected. After the icon is selected, it is continuously ticked, crossed, or circled again, or other arm and wrist motions to enable a preset function of the icon to be executed. The implementation of this icon selection is ergonomic, the operation is smooth and complete, and it is done in one go.

The first concept of the present invention is to provide a selection device for selecting an icon in an image area and having a definable position in the image area. The apparatus includes a motion sensing unit and a processing unit. The motion sensing unit senses a first motion and converts the first motion into a first signal. The processing unit converts the first signal to a first track of the definable position, and determines a first area in the image area according to the first track, and displays the image according to the first area and the icon A second area in the area determines whether the icon is selected.

The second concept of the present invention is to provide a selection device for selecting an icon in an image area and having a definable position in the image area, the apparatus comprising a selection unit. The selection unit is configured to have a first motion, converting the first motion to a first trajectory of the definable position, and determining a first region in the image region according to the first trajectory, and according to the first region A second area in the image area is displayed with the icon to determine whether the icon is selected.

The third concept of the present invention is to provide a selection method for selecting an icon in an image area and having a definable position in the image area, the method comprising the steps of: converting a first motion to the Defining a first trajectory of the location; determining a first region in the image region according to the first trajectory; and determining the second region according to the first region and the icon displayed in the image region Whether the icon is selected.

Please refer to the second figure, which is a schematic diagram of the selection system 92 of the first embodiment of the present invention. As shown, the selection system 92 includes a display screen 21 and a selection device 26. An image area 22 for displaying an image 23 is defined in the area of the display screen 21, an icon 231 is defined in the image 23, and a definable position 2A is defined in the image area 22. The selection means 26 is arranged to cause the icon 231 in the image area 22 to be selected and includes a selection unit 27.

The selection unit 27 is configured to have a motion F21, the transition motion F21 is a trajectory G21 of the definable position 2A, a region H21 in the image region 22 is determined according to the trajectory G21, and is displayed on the image region 22 according to the region H21 and the icon 231. In a region K21, it is determined whether the icon 231 is selected.

The selection unit 27 can include a motion sensing unit 28 and a processing unit 29. Motion sensing unit 28 converts motion F21 to signal S1. The processing unit 29 converts the signal S1 to the trajectory G21, determines the region H21 based on the trajectory G21, and determines whether the icon 231 is selected based on the region H21 and the region K21. The processing unit 29 can include a controller 291, which can be a microcontroller (Microcontroller) or a microprocessor (Microprocessor) or a digital signal processor (Digital Signal Processor) or a central processing unit ( CPU).

In one embodiment, motion sensing unit 28 includes a gyroscope 281 that senses motion F21 to produce signal S1. In one embodiment, motion sensing unit 28 includes an accelerometer 282 that senses motion F21 to produce signal S1. In an embodiment, the motion sensing unit 28 includes a gyroscope 281 and an accelerometer 282; the gyroscope 281 has at least two sensing degrees of freedom, sensing motion F21 to generate a first portion S11 of the signal S1; The accelerometer 282 has at least two degrees of freedom, sensing motion F21 to produce a second portion S12 of signal S1.

The movement F21 of the selection unit 27 can be formed by a selection unit 27 (not shown), and the movement F21 can include at least one of a three-dimensional motion and a two-dimensional motion. The trajectory G21 of the position 2A may include at least one of a first arc, a second arc and a first line segment, and a plurality of second line segments; when the trajectory G21 is the first arc, the The arc angle of the first arc is one of 360°, approximately 360°, and over 360°.

The area H21 determined by the track G21 includes a closed area, and the icon 231 has a area K21. When the relationship of the region H21 with respect to the region K21 is partially overlapped, completely overlapped, completely covered, the centroid of the region H21 is located in the region K21, and the track G21 passes, the contact region H21, or the like, the selection unit 27 makes the icon 231 Selected.

In an embodiment, the selection device 26 includes a motion sensing unit 28 and a processing unit 29. The motion sensing unit 28 senses the motion F21 and converts the motion F21 to the signal S1. The processing unit 29 converts the signal S1 into a trajectory G21 at which the position 2A can be defined, determines the region H21 in the image region 22 according to the trajectory G21, and determines the icon 231 according to the region K21 and the region K21 in which the icon 231 is displayed in the image region 22. Whether it is selected. The motion F21 sensed by the motion sensing unit 28 can be generated by a limb (not shown) such as a body part such as a hand, a foot, a head, a neck, a shoulder, or a waist.

Please refer to the third figure, which is a schematic diagram of the selection system 93 of the second embodiment of the present invention. As shown, the selection system 93 includes a display screen 31 and a selection device 36. There is an image area 32 in the area of the display screen 31, and the image area 32 has a definable position 3A therein, wherein the definable position 3A can be defined to any position within the image area 32.

Selection device 36 includes a selection unit 37. The selection unit 37 includes a button 371, a motion sensing unit 38, a processing unit 39, a wireless transmission module 373, a lighting unit 374 and a sounding unit 375. The button 371, the motion sensing unit 38, the wireless transmission module 373, the illumination unit 374, and the sounding unit 375 are all coupled to the processing unit 39.

Motion sensing unit 38 has sensing capabilities for three-dimensional (x, y, z) motion and provides a signal S3 to processing unit 39. The motion sensing unit 38 includes at least one gyroscope 381 or/and an accelerometer 382, wherein the gyroscope 381 or the accelerometer 382 can have one, two or three independent sensing degrees of freedom, respectively. Gyroscope 381 and accelerometer 382 provide sub-signal S31 and sub-signal S32 in signal S3 to processing unit 39, respectively.

Please refer to the fourth figures (a) and (b), which are schematic diagrams of the initial configuration 941, 942 of the selection system 93 of the second embodiment of the present invention. As shown in the fourth diagram (a), in order to initialize the motion sensing, or to initiate the motion sensing, the button 371 on the selection unit 37 may be pressed to initiate the sensing, or the sensing may be initiated with a specific motion; The accelerometer 382 can also be utilized and the specific action can be discerned by interpreting the acceleration and deceleration to initiate the sensing function, for example, to initiate the motion sensing function of the selection unit 37 with an up and down pitch swing F41.

As shown in the fourth diagram (b), after the motion sensing function of the selection unit 37 is activated, the trajectory G42 of the position 3A at which the position 3A can be defined on the image area 32 will coincide with the trajectory of the motion F42 of the selection unit 37. After the motion sensing function is activated, a reference point G421 of the track G42 can be set. The absolute coordinates of the end point of the track G42 scanned by the current selection unit 37 can be read by pressing the button 371, and this point is used as the reference point G421 for starting positioning.

Please refer to the fifth figure, which is a schematic diagram of a corresponding configuration 951 of the selection system 93 of the second embodiment of the present invention. As shown, the corresponding configuration 951 includes a front view configuration P1, a right view configuration P2, and a top view configuration P3. The reference point G421 positioning initial value is determined by deriving the correspondence relationship between the operation range of the selection unit 37 and the range of the image area 32, and the associated position 3A and the posture of the selection unit 37 are associated.

In the fifth figure, H and L are the length and width dimensions of the image area 32 (for example, in units of pixels), and u, v, w are the left edge 3213 of the selection unit 37 and the image area 32, respectively. The distance between the upper edge 3211 and the display screen 31 (vertical), α1, α2, and β are the angles of the selection unit 37 and the upper edge 3211, the lower edge 3212, and the left edge 3213 of the image region 32, respectively, wherein α1 and α2 can be selected. The accelerometer 382 in unit 37 is measured, and as for β, it can be measured by the gyroscope 381. The correspondence between the motion of the selection unit 37 and the definable position 3A in the image region 32 can be obtained by estimating the geometric relationship on the graph as follows: u = H tan β / (tan α 1 + tan α 2 ); v = H tan α 1 / ( tan α 1 + tan α 2 ); w = H / (tan α 1 + tan α 2).

The change in (u, v, w) corresponds to the relative displacement (Δx, Δy, Δz). Positioning techniques for obtaining the absolute coordinates (x, y, z) of the definable position 3A using the relative displacements (Δx, Δy, Δz) include motion sensing initialization, reference point positioning initialization, selection unit 37 circle selection operation The range corresponds to the range of the image area 32 and the reference point compensation and the like. Such techniques may be performed by a computer program (not shown) coupled to the selection unit 37, or may be implemented in the processing unit 39 of the selection unit 37.

Please refer to the sixth figures (a) and (b), which are schematic diagrams of the selection configurations 961, 962 of the selection system 93 of the second embodiment of the present invention. As shown in FIG. 6(a), an image 33 is displayed in the image area 32, and the image 33 defines a plurality of icons 331, 332, 333, 334, 335, and 336; and a motion F61 corresponds to the definable position 3A. A track G61 (which may be one of the tracks G611, G612, G613, and G614) may be determined by a specific algorithm to determine whether the circled track G61 actually contains or passes through the image on the image area 32. The coordinates of the symbol 334, or whether the region H61 surrounded by the circle is partially overlapped, completely overlapped or completely covered with the region K61 defined by the icon 334, or the area of the region H61 surrounded by the track G61 is calculated and The centroid of the area, and whether the centroid falls in the area K61 of the circled icon 334; if one of the above is YES, the icon 334 has been selected.

At this time, as shown in FIG. 6(b), the circled icon 334 is displayed as an icon 434 in a color change (for example, reversed or flashing), or is coupled to the selection unit 37 at the same time. The computer (not shown) or the selection unit 37 emits a sound, emits an optical frequency, generates a force feedback or vibrates to remind the circler that the icon 334 has been circled.

After the circle selection action is completed, as shown in the sixth figure (b), the operator then sends a message with a motion F62 to cause a preset function of the icon 334 to be executed. The motion F62 can be a tick F621, a cross, a wavy, or a triangle, or a wrist to cause the selection unit 37 to generate a pitching motion, a yaw motion, or a scrolling motion, or once again Draw an arc or circle the F622 action. The selection unit 37 can switch the motion F62 to a trajectory G62 at which the position 3A can be defined, and the trajectory can be not displayed. Determining the acceleration/deceleration mode of the track G62 or the motion F62 or the motion and rotation mode by a predetermined acceleration/deceleration mode or a rotation or motion mode to determine whether the preset function of the icon 334 or the icon 434 is executed. Wherein the trajectory G62 has the shape of the motion F62.

That is, the accelerometer 382 can be used to sense the acceleration and deceleration occurring in the motion F62, or select an inclination angle output by the unit 37 under the motion F62; and therefore, the sub-signal S32 of the output signal S3, as shown in the third figure, The processor unit 39, the processing unit 39 parses an acceleration and deceleration distribution of the motion F62 according to the sub-signal S32 and converts it into an execution signal to cause the preset work of the icon 434 to be executed. The execution signal formed by the motion F62 can be similar to the use of a conventional mouse to double-click the left button on a desired icon to enable the preset function of the desired icon to be executed. Execution signal.

Please refer to the seventh diagrams (a) and (b), which are schematic diagrams of the positioning configurations 971, 972 of the selection system 93 of the second embodiment of the present invention. As shown in the seventh diagram (a), the definable position 3A can be positioned to a specific position G711 in the image area 32 by the button 371 of the selection unit 37. For example, when the trajectory G71 of the definable position 3A corresponding to the movement F71 of the selection unit 37 is scanned to the specific position G711 on the image area 32, the button 371 is pressed once, and thus the above operation program acquires the selection unit 37 to scan now. The specific position of the final point G711 is the absolute coordinate (x, y, z). As shown in the seventh diagram (b), the definable position 3A is positioned at the specific position G711, and then the input of the material 72 is started using the keyboard 79 at the input point 71 corresponding to the specific position G711.

Please refer to the eighth figures (a), (b), (c) and (d), which are schematic diagrams of the scrolling configurations 981, 982, 983, 984 of the selection system 93 of the second embodiment of the present invention. As shown, the image area 32 has an image 83 therein, and the selection unit 37 is configured to have a motion (such as one of F811, F821, F831, and F841) and a point from the image area 32 where the position 3A can be defined. (such as one of R11, R21, R31, and R41), the image 83 displayed in the image area 32 is scrolled by the motion (such as one of F811, F821, F831, and F841). The motion may be an instantaneous upward motion F811, an instantaneous downward motion F821, an instantaneous left deflection motion F831, or an instantaneous right deflection motion F841. This scrolling function is operated by the gyroscope 381 or the accelerometer 382 by sensing the above motion.

As shown in the eighth (a) and (b), the image area 32 is scrolled up and down, and the selection unit 37 scrolls up or down with an instantaneous up motion F811 or an instantaneous down motion F821. operating. As for the scroll amount, the distance R13 between the position of the starting point R11 and the upper edge 3211 of the image area 32 is the scrolling amount of the image 83 scrolling upward; in addition, the position of the starting point R21 and the lower edge 3212 of the image area 32 are The distance R23 is the scrolling amount of the image 83 scrolling downward.

As shown in the eighth (c) and (d), the image area 32 is scrolled left and right, and the selection unit 37 performs the leftward or rightward scrolling with the instantaneous left yaw motion F831 or the instantaneous right yaw motion F841. Operation. The distance R33 between the starting point R31 and the left edge 3213 of the image area 32 is the scrolling amount of the image 83 scrolling to the left; in addition, the distance R43 between the starting point R41 and the right edge 3214 of the image area 32 is It is the amount of scrolling of the image 83 to the right.

In an embodiment, the selection unit 37 is configured to have a motion (such as one of F811, F821, F831, and F841), and converts the motion to a trajectory of the definable position 3A (eg, corresponding to F811, F821, and F831, respectively). , one of G811, G821, G831, and G841 of F841, wherein the trajectory is a line segment close to one of horizontal and vertical, and the line segment has a direction (such as one of R12, R22, R32, and R42) A point (such as one of R11, R21, R31, R41) located in the image area 32. The selecting unit 37 according to the starting point of the line segment and the direction and the boundary 321 of the image area, and another movement (such as one of F812, F822, F832, F842 corresponding to F811, F821, F831, F841 respectively) An image 83 displayed on the image area 32 is scrolled.

Please refer to the ninth figure, which is a flowchart of the operation of the selection system 93 of the second embodiment of the present invention. As shown, in step Q02, motion sensing is initiated. In step Q04, the reference point G421 for positioning is initialized, for example, the reference point G421 of the trajectory G42 at which the position 3A can be defined. In step Q06, the operation range of the selection unit 37 is mapped to the range of the image area 32 to associate the position at which the position 3A can be defined and the movement of the selection unit 37. In step Q08, the correction and compensation of the reference point G421 are performed. In step Q10, the icon 334 is selected using the circled area K71. In step Q12, the preset function of the icon 334 is performed using the motion F72.

Referring to the second figure, the selection method in the present invention is used to select an icon 231 in an image area 22, and the image area 22 has a definable position 2A. The method includes the following steps: converting a motion F21 is a trajectory G21 that can define the position 2A; according to the trajectory G21, a region H21 in the image region 22 is determined; and, according to the region H21 and the icon 231 displayed in the region K21 of the image region 22, whether the icon 231 is determined Selected.

The technical advancement of this case relative to the operation of the existing 3D air mouse is that the case is to select the operation of the area and then match the natural movements of the wrist and the arm to make the screen icon selected and the preset of the icon. The function is executed; non-market-ready technologies, such as the Gyration 3D remote control or Logitech Air Mouse, use the cursor on the mobile screen or an object to select the icon on the screen, and then press the mouse with the mouse. Two actuation keys are used to cause the preset function of the icon to be executed.

In summary, the selection device and method of the present invention can achieve the effects set by the invention. The above descriptions are only the preferred embodiments of the present invention. Any equivalent modifications or variations made by those skilled in the art of the present invention should be included in the scope of the following patent application.

91. . . Icon selection system

911, 912, 961, 962. . . Select configuration

92, 93. . . Selection system

941, 942. . . Initial configuration

951. . . Corresponding configuration

971, 972. . . Positioning configuration

981, 982, 983, 984. . . Scroll configuration

12, 22, 32. . . Image area

13, 23, 33, 83. . . image

14. . . cursor

17. . . mouse

131, 132, 133, 134, 135, 136, 231, 331, 332, 333, 334, 335, 336, 434. . . Icon

A1, A2, A3, A4, A5, A6, A7, A8. . . Line segment

21, 31. . . Display screen

26, 36. . . Selection device

2A, 3A. . . Definable location

27, 37. . . Selection unit

28, 38. . . Motion sensing unit

29, 39. . . Processing unit

291. . . Controller

F21, F42, F61, F62, F71. . . motion

F41. . . Up and down pitching

F621. . . Tick

F622. . . Circle

F811, F812. . . Instant upward movement

F821, F822. . . Instant down motion

F831, F832. . . Instant left yaw motion

F841, F842. . . Instantaneous right yaw motion

GA. . . Motion track

G21, G42, G61, G611, G612, G613, G614, G62, G71, G811, G821, G831, G841. . . Trajectory

H21, K21, H61, K61. . . region

S1, S3. . . signal

S11, S12. . . Part of the signal

S31, S32. . . Subsignal

281, 381. . . Gyro

282, 382. . . Accelerometer

371. . . button

373. . . Wireless transmission module

374. . . Light unit

375. . . Sounding unit

G421. . . Reference point

Α1, α2, β. . . Angle

321. . . boundary

3211. . . Upper edge of the image area

3212. . . Lower edge of the image area

3213. . . The left edge of the image area

3214. . . Right edge of the image area

G711. . . Specific location

71. . . Input point

72. . . data

79. . . keyboard

R11, R21, R31, R41. . . starting point

R12, R22, R32, R42. . . direction

R13, R23, R33, R43. . . distance

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This case can be further explained by the detailed description of the following drawings:

The first picture (a) and (b): a schematic diagram of the selection and configuration of the conventional icon selection system;

Second figure: a schematic diagram of a selection system proposed in the first embodiment of the present invention;

Third figure: a schematic diagram of a selection system proposed in the second embodiment of the present invention;

Fourth (a) and (b): schematic diagram of initial configuration of the selection system proposed in the second embodiment of the present invention;

Figure 5 is a schematic diagram showing the corresponding configuration of the selection system in the second embodiment of the present invention;

Figure 6 (a) and (b): a schematic diagram of the selection and configuration of the selection system proposed in the second embodiment of the present invention;

Figure 7 (a) and (b): schematic diagram of positioning configuration of the selection system of the second embodiment of the present invention;

Figure 8 (a), (b), (c) and (d): a schematic diagram of the scrolling configuration of the selection system of the second embodiment of the present invention;

Ninth Diagram: Operation flow chart of the selection system proposed in the second embodiment of the present invention.

92. . . Selection system

twenty one. . . Display screen

twenty two. . . Image area

2A. . . Definable location

twenty three. . . image

231. . . Icon

26. . . Selection device

27. . . Selection unit

28. . . Motion sensing unit

281. . . Gyro

282. . . Accelerometer

29. . . Processing unit

291. . . Controller

F21. . . motion

G21. . . Trajectory

H21, K21. . . region

S1. . . signal

S11, S12. . . Part of the signal

Claims (13)

a selecting device for performing a positioning operation on an image area, wherein the image area has a first specific position and a definable position, the selecting means comprising: a selecting unit having a moving posture orientation, wherein: the movement a relationship between the orientation of the gesture and the definable position; the selection unit measures the specific orientation under the condition that the motion orientation is configured to be a specific orientation corresponding to the first specific location; and the selection unit is based on The corresponding orientation is measured and a geometric relationship between the particular orientation and the image region is calculated to calculate the correspondence to perform the positioning operation. The selection device of claim 1, wherein the selection unit defines the definable position to the first specific position in the specific orientation, and includes: a defining device responsive to a first defined operation Forming a definition signal; a motion sensing unit, generating a first signal to determine the motion attitude orientation, wherein the first signal has a first sub-signal and a second sub-signal; and a processing unit receiving the definition a signal and the first signal, according to the first signal and the geometric relationship, obtaining a calculated correspondence relationship for estimating the correspondence, and forming, according to the first signal and the estimated correspondence relationship, in the image region a first track of the definable position, wherein when the definition signal is formed, the processing unit defines the definable position to a reference position according to the definition signal, the first signal, and the estimated correspondence, and A first absolute coordinate of the reference position is read. The selection device of claim 2, wherein the definition device is one of a button device and a motion sensing trigger device, and the reference position is a reference point. The selection device of claim 2, wherein the motion sensing unit comprises: a gyroscope coupled to the processing unit and generating the first sub-signal; and an accelerometer coupled to the processing unit, And generating the second sub-signal. The selection device according to claim 4, wherein: the image area is located on a display screen; in the specific orientation, the correspondence relationship is a specific relationship, and the specific relationship satisfies u=H tanβ/(tanα1+ Tanα2), v=H tanα1/(tanα1+tanα2) and w=H/(tanα1+tanα2), where H and L respectively represent the length and width dimensions of the image region, and u, v and w represent the selection unit and a left edge, an upper edge, and three vertical distances from the display screen, and α1, α2, and β respectively represent the upper edge, the lower edge, and the left edge of the selection unit and the image region The processing unit uses the second sub-signal to measure the angle α1 and the angle α2; the processing unit uses the first sub-signal to measure the angle β; and when the vertical distance group {u, v, w When changing, a change in the vertical distance group {u, v, w} corresponds to a displacement of the definable position, and the processing unit utilizes the displacement to obtain a second absolute coordinate of the definable position. The selection device of claim 2, wherein: the selection unit further has a first motion, converting the first motion to a second trajectory of the definable position; and when the second trajectory scans the image When a second specific location on the area, the defining means is responsive to a second defined operation by which the definable location is defined to the second specific location and a second of the second specific location is obtained An absolute coordinate; and the selection unit is coupled to a computer, and the computer estimates the correspondence to perform the positioning operation. A method for performing a positioning operation on an image area, the image area having a first specific position, the method comprising the steps of: providing a selection unit; the selection unit being configured to have a correspondence with the first specific position Measuring the particular orientation under a particular orientation condition, wherein the particular orientation has a particular correspondence between the reference location; and a geometric relationship between the particular orientation and the image region based on the measured orientation The specific correspondence is estimated to perform the positioning operation. The method of claim 7, wherein: the image area further has a definable position; the selection unit further has a moving posture orientation, and the movement posture orientation and the definable position have a first Corresponding relationship; and the method further comprises the step of: defining the definable location to the first specific location in the particular orientation; obtaining, based on the measured specific orientation and the geometric relationship, an estimate for the first correspondence Calculating a correspondence relationship; defining the definable position to a reference position in response to a first defined operation to read a first absolute coordinate of the reference position; providing a defining means responsive to the first defined operation; generating a signal for determining the orientation of the motion; and a first trajectory of the definable position is formed in the image region according to the signal and the estimated correspondence. The method of claim 8, wherein the defining device is one of a button device and a motion sensing trigger device, and the reference position is a reference point. The method of claim 9, wherein: when the defining device is the button device, the first defining operation is a position defining pressing applied to the button; and when the defining device is the motion sensing trigger In the device, the first defined operation is a position-defining motion applied to the motion-inducing trigger device. The method of claim 8, wherein: the image area is located on a display screen; in the specific orientation, the first correspondence is the specific correspondence, and the specific correspondence satisfies u=H tanβ/ (tanα1+tanα2), v=H tanα1/(tanα1+tanα2), and w=H/(tanα1+tanα2), where H and L respectively represent the length and width dimensions of the image region, and u, v, and w represent the Selecting a left edge, an upper edge of the image area, and three vertical distances from the display screen, and α1, α2, and β respectively represent the upper edge, the lower edge, and the left of the selection unit and the image area Three angles of the edge; when the vertical distance group {u, v, w} changes, a change of the vertical distance group {u, v, w} corresponds to a displacement of the definable position; and the method further includes the following Step: using the displacement to obtain a second absolute coordinate of the definable position; causing the selection unit to have a first motion; converting the first motion to a second trajectory of the definable position; and when the second trajectory is scanned Responding to a second defined operation when a second specific location on the image area is reached Defining the definable location to the second specific location, and obtaining a third absolute coordinate of the second specific location; providing a computer coupled to the selection unit; and causing the computer to calculate the first correspondence to perform This positioning operation. a selecting device for performing a positioning operation on an image area, wherein the image area has a specific position, the selecting means comprising: a selecting unit, wherein: the selecting unit is configured to have a corresponding to the reference position The selection unit measures the particular orientation under a particular orientation condition, wherein the particular orientation has a particular correspondence between the reference location; and the selection unit is based on the measured particular orientation and between the particular orientation and the image region a geometric relationship, and the specific correspondence is extrapolated to perform the positioning operation. The selection device of claim 12, wherein: the image area further has a definable position; the selection unit further has a moving posture orientation, and the movement posture orientation and the definable position have a first a correspondence unit; the selection unit obtains a calculated correspondence relationship for estimating the first correspondence relationship according to the measured specific orientation and the geometric relationship; and the selection unit generates a signal for determining the orientation of the motion posture; The selection unit forms a trajectory of the definable position in the image area according to the signal and the estimated correspondence.