KR20150057740A - Control device for pan, tile and zoom operation - Google Patents

Abstract

According to a desirable embodiment of the present invention, disclosed is an apparatus for controlling video surveillance equipment. The apparatus recognizes input of a user from a screen on which a video is output, and executes pan or tilt operation and zoom operation at the same time in order to eliminate inconvenience which can take place when video output is controlled by an external device.

Description

[0001] The present invention relates to a pan, tilt and zoom control device,

The present invention relates to a method for controlling pan, tilt, and zoom operations on a touch screen in a video surveillance equipment.

The existing video surveillance system configuration is implemented to control the video surveillance equipment through the interface of the external controller or the storage device to view the image at the desired position. For example, Pan / Tilt / Zoom operation is implemented through joystick, buttons.

Therefore, conventionally, in order to control the video surveillance equipment, when there is an external controller input such as a joystick, an input signal is received and operations such as pan / tilt / zoom are operated in the driving unit. And providing the corresponding image.

However, when controlling the video surveillance equipment using an external terminal such as a joystick, it is inconvenient to check the actual operation screen according to the condition and condition of the joystick, and to check whether the event corresponding to the movement of the joystick occurs in the video surveillance equipment .

KR 2012-0027516a

In one preferred embodiment of the present invention, a method of implementing video surveillance device control such as pan / tilt / zoom directly on a video output screen in order to eliminate the inconvenience generated when controlling video output through an external device .

In the preferred embodiment of the present invention, when the pan / tilt / zoom operation is separately controlled, it is difficult to accurately operate and process. Therefore, an interface in which the pan / tilt / zoom operation is simultaneously performed is provided.

As a preferred embodiment of the present invention, the PTZ control device comprises a touch pressure sensor, an interface unit for detecting an external signal through the touch pressure sensor, The position information of the external signal detected by the interface is displayed in the form of a horizontal x and a vertical y and information indicating the intensity of the pressure of the external signal is displayed in the form of a height z so that the detected external signal is expressed in the form of three- An information converting unit for converting the information into an information; (X, y), and performing a panning or tilting operation at a position (x, y) on the display based on the horizontal x, vertical y coordinate information, and a PTZ controller for performing a zoom operation according to a magnitude of a z value at a y-position.

Preferably, the zooming operation is performed according to the magnitude of the z value, and an image is generated on the display using the zoom scaling factor corresponding to the magnitude of the z value when the zooming operation is performed.

Preferably, the zoom scaling factor further includes direction information indicating the east, west, north, and south directions based on the (x, y) position point.

Preferably, when a plurality of external signals are detected in the interface, the position and the direction of the external signal are shifted from the first external signal (x1, y1, z1) to the external signal (x2, y2, z2) at the same time.

 You can smoothly control the camera view or object by pushing, pulling, tilting, pan, zooming, and rotating.

The present invention can be applied to DVR, NVR, and image reproduction related fields using stored image search. For example, since there is a touch pressure sensor in an external controller device in the security field, the PTZ function can be used even with a simple touch operation. Therefore, It is available in the part.

FIG. 1 illustrates an example of receiving a three-dimensional coordinate value through a touch pressure sensor in a video surveillance apparatus according to a preferred embodiment of the present invention.
Fig. 2 shows an example of changing the direction at the (x, y) position according to the magnitude and direction of the z value, which is a preferred embodiment of the present invention.
FIG. 3 is a block diagram illustrating an internal configuration of a video surveillance system implementing PTZ control according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that the same components of the drawings are denoted by the same reference numerals and signs as possible even if they are shown on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 illustrates an example of receiving a three-dimensional coordinate value through a touch pressure sensor in a video surveillance apparatus according to a preferred embodiment of the present invention.

As a preferred embodiment of the present invention, the image sensing device includes a CCTV, a surveillance camera, a mobile phone, a smart phone, a DVR, an NVR, a handheld device, and the like. The preferred video surveillance equipment of the present invention is constituted by a touch pressure sensor and supports an interface unit for detecting an external signal through the touch pressure sensor.

Preferably, the image sensing device receives the three-dimensional coordinate values (x, y, z) of the input signal using a touch pressure sensor. (X, y) of the three-dimensional coordinate values of the received input signal is used as position information, the z coordinate information is regarded as the pressure intensity of the input signal to perform a zoom operation, and x, (x, y, z) value to be displayed when the y coordinate is changed.

Preferably, in the present invention, direction information can be extracted using z-coordinate information and position vector information up to (x, y, z) points generated based on the intensity of the z-coordinate and a predetermined reference point.

Fig. 2 shows an example of changing the direction at the (x, y) position according to the magnitude and direction of the z value, which is a preferred embodiment of the present invention.

Preferably, the image sensing apparatus of the present invention can perform a zoom operation according to the magnitude of the z value and generate an image on the display using a zoom scaling factor corresponding to the magnitude of the z value when the zoom operation is performed . As a preferred embodiment of the present invention, the magnitude of the z value can be determined based on the touch intensity of the user recognized by the portable terminal.

In addition, the zoom scaling factor may further include direction information indicating the east, south, north, and south directions based on the (x, y) position point. In this case, the touch coordinates and the touch direction at the point where the touch event occurs are generated according to the touch position, the touch intensity, and the touch direction of the user recognized by the portable terminal.

In one embodiment, when the user touches a specific point 210, the image of a specific point is greatly enlarged or reduced according to the touch intensity. Preferably, the touch magnification is enlarged when the touch intensity exceeds a predetermined size, and is reduced when the touch time or the touch direction is changed.

In this case, the sensor value corresponding to the touch event includes information such as the touch coordinates of the touch point, the number of fingers to be touched, the duration of the touch, the path of the touch drag, the number of taps, and the collection / stretch degree of the two touch points. The sensor value corresponding to the motion event is determined according to the pattern of the motion event.

In one preferred embodiment of the present invention, when a user touches a specific point 210 and then pushes the pointer 210 in the rightward direction (S210), the pin operation can be performed corresponding thereto, The zooming operation can be performed simultaneously according to the user's touch intensity.

Likewise, when the user touches the specific point 210 and then pushes in the leftward direction (S220), the pin operation can be performed correspondingly. Also, when performing the pushing operation at the same time, The zooming operation can be performed simultaneously.

FIG. 3 is a block diagram illustrating an internal configuration of a video surveillance system implementing PTZ control according to an embodiment of the present invention.

The video surveillance equipment 300 implementing the PTZ control includes an interface unit 310, an information conversion unit 320, a PTZ control unit 330, and a display unit 340.

The interface unit 310 includes a touch pressure sensor, and detects an external signal through the touch pressure sensor.

The information converting unit 320 displays the position information of the external signal detected by the interface unit 310 in the form of width x and length y and information indicating the intensity of the pressure of the external signal in the form of height z, Converts an external signal into a form of three-dimensional coordinates.

The information converting unit 320 also generates a vector between the first external signal x1, y1, z1 and the second external signal x2, y2, z2 when the input of the external signal is one or more, And can convert the position and the direction to the second external signal.

The PTZ control unit 330 displays a position where an external signal is detected on the display based on the horizontal x and vertical y coordinate information, performs a pan or tilt operation at the (x, y) position, and simultaneously with the pan or tilt operation x, y) position according to the magnitude of the z value.

The display unit 340 displays the input values received from the information converting unit 320 and the control operations performed by the PTZ controller 330 on the display. The display unit 340 displays a three-dimensional image on a display, and displays a screen on which a zoom operation is performed simultaneously with a pan or tilt operation according to the magnitude of an external signal.

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored.

Examples of the computer-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like. The computer readable recording medium may also be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner.

In the drawings and specification, there have been disclosed preferred embodiments. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims.

Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Claims (3)

An interface unit configured by a touch pressure sensor and detecting an external signal through the touch pressure sensor;
The controller displays the position information of the external signal detected by the interface unit in the form of a horizontal x and a vertical y, and information indicating the intensity of the pressure of the external signal in the form of a height z, An information converting unit for converting the information into a form; And
(X, y) at the same time as the panning or tilting operation, displaying the position where the external signal is detected on the display based on the horizontal x and vertical y coordinate information, And a zooming operation according to the magnitude of the z-value at the position of the z-axis. The method according to claim 1,
Wherein the zooming operation is performed according to the magnitude of the z value and an image is generated on the display using a zoom scaling factor corresponding to the magnitude of the z value when performing the zoom operation, ) Direction information based on the position point of the PTZ control signal. 3. The method of claim 2, wherein when there are a plurality of external signals detected by the interface,
Wherein the position and direction are changed at the same time when moving from the first external signal (x1, y1, z1) to the subsequent external signal (x2, y2, z2).

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