TWI459370B - Image display system and control method thereof - Google Patents

Description

Image display system and control method thereof

The present invention relates to an image display system and method, and more particularly to an image display system that is easy to operate and user-friendly, and a control method thereof.

In the market, mobile phones, computers and digital cameras with image capture functions have been highly polarized. In particular, digital cameras have a versatile user interface that allows users to instantly adjust image brightness, focus and view photos. The multi-function operation interface is composed of a plurality of direction buttons, an image enlargement/reduction button, a focus button, or a touch screen button, which can help the user to set the shooting parameters.

Although the versatile operator interface can integrate multiple input interfaces and reduce the number of buttons on the camera, it is not easy to operate due to the complicated design. For example, when viewing a photo, if you want to enlarge the size of the photo, you usually use the button or finger to operate on the screen to adjust the size of the image. To move the image display position, use the arrow keys to adjust the image position. However, it is inconvenient to operate on a small-sized screen, and the operation of the buttons is not user-friendly, so it is rarely used by ordinary users.

The invention relates to an image display system and a control method thereof, which can make the user more easy to operate by the more convenient man-machine interface, so as to meet the humanized requirements.

According to an aspect of the present invention, an image display system is provided, including a processor, a display module, and a sensor. The display is used to display a frame of image data. The sensor is configured to detect the motion state of the image display system, and correspondingly output a set of sensing signals to the processor, and the processor controls the position or size of the frame in the image data according to the set of sensing signals.

According to another aspect of the present invention, an image control method is provided, comprising the following steps. Read an image data. One of the displayed image data frames is in one of the image display systems. The motion detection system displays the motion state of the system to output a set of sensing signals. Control the position or size of the frame in the image data according to the set of sensing signals.

In order to provide a better understanding of the above and other aspects of the present invention, the following detailed description of the embodiments and the accompanying drawings

The image display system and the control method thereof of the invention use the sensor to detect the motion state of the image display system, for example, detecting the momentum of the lateral displacement, the longitudinal displacement, the horizontal rotation, the vertical rotation or the tilt, and the display mode can be changed. The display mode of the group, such as moving, rotating, zooming in, zooming out, or switching angles. For example, when the user holds the camera (or other electronic device with image capturing function) and views a photograph taken, the left and right displacement or zooming in and out of the photo can be controlled by moving the camera left and right or moving the camera back and forth. Therefore, the image display system and the control method thereof of the present invention have a convenient human-machine interface, which makes the user more easy to operate to meet the humanized requirements.

The following is a detailed description of various embodiments, and the embodiment is only used to The description is not intended to limit the scope of the invention as claimed.

Please refer to FIG. 1 , which is a schematic diagram of an image display system according to an embodiment of the invention. The image display system 100 is, for example, a modular display system, and includes a processor 110, a display module 120, a sensor 130, an image sensor 140, and a memory 150. The processor 110 is configured to read an image captured by the image sensor 140 or an image file stored in the memory 150, and convert it into an image format usable by the encoder, such as JPEG, GIF. , BMP and other formats to create an image data in a frame temporary storage area 112. The image data can be converted into an image signal by a decoder and output to the display module 120 via the processor 110 to display a frame in one of the windows 122 of the display module 120. In this embodiment, the processor 110 can be a digital signal processor or a microprocessor integrated with a digital analog converter (ADC/DAC) and a codec (CODEC).

In the present embodiment, the sensor 130 is, for example, an angular velocity sensor (or gyroscope) for measuring angular velocity in degrees per second. Once the sensor 130 detects that the image display system 100 (eg, a camera) changes its motion state, the processor 110 can use the Coriolis force principle to convert the momentum proportional to the angular velocity into a specific axial displacement amount, thereby obtaining Information on the amount of change. Referring to FIG. 1 , the sensor 130 outputs a set of sensing signals according to the motion state of the detected object. The set of sensing signals may include at least one of a first angular velocity signal ω x (first signal), a second angular velocity signal ω y (second signal), and a third angular velocity signal ω z (third signal). For example, when the display module 120 moves along the first axis X, the sensor 130 corresponds to the image display system 100. The momentum (first momentum) in an axial direction X outputs a first angular velocity signal ω x . When the display module 120 moves along the second axial direction Y, the sensor 130 outputs a second angular velocity signal ω y corresponding to the momentum (second momentum) of the image display system 100 in the second axial direction Y. When the display module 120 moves along the third axial direction Z, the sensor 130 outputs a third angular velocity signal ω z corresponding to the momentum (third momentum) of the image display system 100 in the third axial direction Z. The first axial direction X, the second axial direction Y and the third axial direction Z are perpendicular to each other.

In the above embodiment, although the momentum in each axial direction is known by the angular velocity signal, the sensing signal output by the sensor 130 can also be an angle signal, an angular acceleration signal, a displacement signal, a speed signal or an acceleration signal to know the image display. The state of motion of system 100. Then, the processor 110 can calculate the sensing signal to convert into a specific axial displacement amount. In addition, the sensor 130 is not limited to an angular velocity sensing unit, and may be an angle sensing unit, an angular acceleration sensing unit, a displacement sensing unit, a speed sensing unit, or an acceleration sensing unit, as long as the motion state of the image display system 100 can be known. Moreover, the sensing signal output by the sensor 130 is not limited to a rectangular coordinate signal, and may also be a polar coordinate signal or a spherical coordinate signal. When the output sensing signal is a polar coordinate signal or a ball coordinate signal, the processor can first convert the rectangular coordinate, and then convert the rectangular coordinate signal into a specific axial displacement, or do not need to convert the rectangular coordinate, but Directly convert the polar coordinate signal or the ball coordinate signal into a specific axial displacement. In the following embodiments, the three-axis angular velocity signals ω x, ω y , and ω z are still described as an example, but not limited thereto.

In addition, in FIG. 1, the processor 110 includes a conversion module 114 for converting the angular velocity signal into a specific axial displacement amount. for example, Converting the first angular velocity signal ω x into the displacement amount Δx (first displacement amount) of the first axial direction X, and converting the second angular velocity signal ω y into the displacement amount Δy of the second axial direction Y (second displacement amount) The third angular velocity signal ω z is converted into the displacement amount Δz (third displacement amount) of the third axial direction Z. Therefore, the processor 110 can update the starting position of the display screen (frame) according to the displacement amount of the specific axial direction.

Please refer to FIG. 2, which is a schematic diagram showing the starting position of the update display screen. P(0,0) is the starting position of the image data 10 (for example, a photo), and P(X0, Y0) is the starting position of the display screen 12 with respect to the P(0, 0) distances X0 and Y0, P(X1) , Y1) is the starting position of the display screen 12' with respect to the P(0, 0) distances X1 and Y1. When the sensor 130 detects the movement of the first axial direction X and the second axial direction Y, the processor 110 updates the display according to the displacement amount Δx of the first axial direction X and the displacement amount Δy of the second axial direction Y. The starting position of the screen 12 is moved from P(X0, Y0) to P(X1, Y1). Therefore, from the visual point of the human eye, it is also found that the display screen (frame) on the window 122 moves its coordinate position by the same amount with the displacement amounts Δx and Δy. It is more convenient for the user to operate, because the display module 120 can be moved to the image display system 100 by moving the display module 120 on the plane (XY plane) where the window 122 of the display module 120 is located, so that the processor 110 updates the display screen 12 (frame) to the starting position in the image data 10 to achieve the effect of the movement.

In addition, the processor 110 can also control the size of the display screen 12 (frame) in the image data 10. Please refer to FIGS. 3A and 3B , which are schematic diagrams showing an enlarged display screen and a reduced display screen, respectively. P(0,0) is the starting position of the image data (such as photo), and P(X0, Y0) is relative to P(0,0). The starting position of the display screen 12 of the distances X0 and Y0. When the sensor 130 detects the movement of the third axis Z, the processor 110 may update the size of the display screen 12 according to the displacement amount Δz of the third axial direction Z, for example, from the original first size S1 to the first The display screen 12' of the two-size S2 (see FIG. 3A) or the display screen 12' of the third size S3 (see FIG. 3B). Therefore, from the visual point of the human eye, it is also found that the display screen (frame) on the window 122 changes its size by the amount of displacement. It is more convenient for the user to operate, because the display module 120 can be moved on the axis (Z axis) perpendicular to the plane (XY plane) where the window 122 of the display module 120 is located, so that the image display system can be The 100 sends an enlargement command or a zoom-out command, and causes the processor 110 to update the size of the display screen 12 (frame) to achieve the effect of zooming in or out.

Please refer to FIG. 4, which is a flow chart of an image control method according to an embodiment of the invention. The following description will be made in conjunction with Figures 1, 2 and 3A-3B. The image control method includes the following steps S11 to S17. In step S11, a photo viewing mode is entered to capture an image data, and one of the image data is displayed in one of the windows 122 of the display module 120. In step S12, whether or not to enter an enlargement mode, if yes, proceed to step S13, and if no, return to step S11. In step S13, the start position of the display screen 12 is calculated, and the motion state of the image display system 100 is detected. In step S15, if the sensor 130 detects the movement of the display module 120, the sensor 130 outputs a set of sensing signals to the processor 110, for example, a first angular velocity signal ω x and a second angular velocity signal ω y . At least one of the third triangular velocity signals ω z . If the sensor 130 does not detect the movement of the display module 120, it returns to step S13. In step S16, processing The device 110 can convert the sensing signal into a specific axial displacement amount, for example, the displacement amount Δx of the first axial direction X, the displacement amount Δy of the second axial direction Y, or the displacement amount Δz of the third axial direction Z . In step S17, the processor 110 can control the position or size of the display screen 12 (frame) in the image data 10 according to the displacement amount of the specific axial direction to update the starting position or size of the display screen 12, as shown in FIG. And shown in Figure 3A-3B. After the update is completed, the frame is displayed in the window 122, and the process returns to step S13. Further, in step S14, if the enlargement mode is to be ended, the process returns to step S11.

In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

10‧‧‧Image data

12, 12’‧‧‧ display screen (frame)

100‧‧‧Image display system

110‧‧‧ processor

112‧‧‧ frame temporary storage area

114‧‧‧Transition module

120‧‧‧ display module

122‧‧‧Window

130‧‧‧ Sensor

140‧‧‧Image Sensor

150‧‧‧ memory

ω x‧‧‧first angular velocity signal

ω y‧‧‧second angular velocity signal

Ω z‧‧‧third angular speed signal

△x, △y, △z‧‧‧ displacement

X‧‧‧first axial direction

Y‧‧‧second axial

Z‧‧‧third axial

S1‧‧‧ first size

S2‧‧‧ second size

S3‧‧‧ third size

FIG. 1 is a schematic diagram of an image display system according to an embodiment of the invention.

FIG. 2 is a schematic diagram showing the start position of the update display screen.

3A and 3B are schematic diagrams showing an enlarged display screen and a reduced display screen, respectively.

FIG. 4 is a schematic flow chart of an image control method according to an embodiment of the invention.

100‧‧‧Image display system

110‧‧‧ processor

112‧‧‧ frame temporary storage area

114‧‧‧Transition module

120‧‧‧ display module

122‧‧‧Window

130‧‧‧ Sensor

140‧‧‧Image Sensor

150‧‧‧ memory

ω x‧‧‧first angular velocity signal

ω y‧‧‧second angular velocity signal

Ω z‧‧‧third angular speed signal

△x, △y, △z‧‧‧ displacement

X‧‧‧first axial direction

Y‧‧‧second axial

Z‧‧‧third axial

Claims (10)

An image display system includes: a display module for displaying a frame of image data; a sensor for detecting a motion state of the image display system and correspondingly outputting a set of sensing signals; and a processor, Controlling the position or size of the frame in the image data according to the set of sensing signals. The image display system of claim 1, wherein the set of sensing signals comprises at least one of an angle signal, a corner speed signal, an angular acceleration signal, a displacement signal, a speed signal and an acceleration signal. The image display system of claim 2, wherein the set of sensing signals comprises: a first signal corresponding to a first momentum of the image display system in a first axial direction; a second signal, Corresponding to a second momentum of the image display system in a second axial direction; and a third signal corresponding to a third momentum of the image display system in a third axial direction. The image display system of claim 3, wherein the set of sensing signals comprises a right angle coordinate signal, a polar coordinate signal or a ball coordinate signal. The image display system of any one of claims 1 to 3, wherein the processor comprises a conversion module for sensing the group The test signal is converted into a set of displacements. The image display system of claim 5, wherein the processor moves the frame correspondingly according to the first displacement amount and the second displacement amount of the set of displacement amounts. The image display system of claim 5, wherein the processor enlarges or reduces the size of the frame according to a third displacement amount of the set of displacement amounts. The image display system of claim 2, wherein the sensor comprises an angle sensing unit, an angular velocity sensing unit, an angular acceleration sensing unit, a displacement sensing unit, a speed sensing unit and an acceleration sensing unit. One. An image control method for an image display system, the image display system includes a window, the image control method includes: reading an image data; displaying a frame of the image data in the window; detecting the image display The motion state of the system is corresponding to outputting a set of sensing signals; and controlling the position or size of the frame in the image data according to the set of sensing signals. The image control method of claim 9, further comprising: moving the position of the frame according to the displacement amount of the first axial direction of one of the set of sensing signals and the displacement amount of a second axial direction, and according to the One of the group of sensing signals has a third axial displacement that magnifies or reduces the frame.