KR20040103156A - Method for displaying and moving a position in case of pdp video signal zoom - Google Patents

Abstract

PURPOSE: A method for displaying and moving the position during a plasma display panel(PDP) image signal zoom is provided to easily detect the position of the current image in the deteriorated image by performing the zoom and panning operation. CONSTITUTION: A method for displaying and moving the position during a plasma display panel(PDP) image signal zoom includes the steps of: detecting(201) the active resolution and the horizontal/vertical data start point of the signal inputted from the outside; displaying(204) the horizontal/vertical start point as a coordinate in response to the zoom in/out inputted by the user and the panning signal; displaying(207) the changed zoom in/out and the calculated comparison value between the center and the panning signal on the map as a coordinate when the horizontal/vertical data pointer is moved by the user; and displaying(208) the comparison value obtained by comparing the center with the horizontal/vertical data start value in the zoom level state with reading the horizontal/vertical position compared with the center on the map through the PDP module.

Description

Position display and movement method for PD video signal zoom {METHOD FOR DISPLAYING AND MOVING A POSITION IN CASE OF PDP VIDEO SIGNAL ZOOM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of displaying and moving a position of a plasma display panel (PDP) image signal when zooming. In particular, when zooming in / out and panning of a digital imaging apparatus. The present invention relates to a method for displaying and moving coordinates relative to an original image of a scaled video image.

Typically, when zooming the PDP video signal, the horizontal / vertical data start time and scaling factor of the input signal based on the center of the current video image in the image scaling unit are scaled. Calculate the horizontal / vertical data end time point using factor).

At this time, the image signal displayed on the screen is adjusted to a preset output resolution, and a task of changing the selected small image to match the output resolution is performed.

If the user pans up, down, left, or right, or zooms, the center value, that is, the horizontal / vertical active end data-start data of the current signal relative to the original signal, is divided into half to change the scaler. Outputs the rescaled image.

That is, when the image is enlarged, the screen is degraded compared to the resolution of the original image. If the panning operation is performed in this state, the user loses the coordinates of the original signal of the current image and moves to a desired position. You may have difficulty.

In addition, when a user wants to change from a screen which has already been zoomed in to another position, the smaller the resolution, the more the up, down, left, and right moving stems, which require unnecessary user interface operation.

Accordingly, the present invention has been made to solve the above problems, and an object thereof is to provide an original image of a zoom in / out and panning scaled image of a digital imaging apparatus. PDP video signal that displays as a map on the screen, memorizes the panning position, and when the pointer moves on the map, calculates the coordinates of the center of the map and converts it to the coordinate of the center of the original signal, and then executes zooming and panning. The present invention provides a method of displaying and moving a position during zooming.

In the present invention for achieving the above object, the position display and movement method during zooming of the PDP video signal detects an active resolution and a horizontal / vertical data start point of a signal input from the outside. Doing; Displaying the horizontal / vertical start point as coordinates according to the zoom in / out and panning signals input by the user; If the horizontal / vertical data pointer movement is generated by the user at the displayed coordinates, calculating and displaying the coordinates on the map with respect to the generated zoomed in / out and panning signal centers; And reading the horizontal / vertical position relative to the center on the map and performing a scaling operation in comparison with the center horizontal / vertical data start value at the current zoom level to display through the PDP module.

1 is a block diagram illustrating a method of displaying and moving a position of a PDP image signal when zooming according to the present invention.

2 is a detailed flowchart illustrating a position display and movement method when zooming a PDP PD video signal according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: user interface unit 20: signal detection unit

30: scaling unit 40: map processor

S1: PDP Module

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a method for displaying and moving a position of a PDP video signal according to the present invention. The user interface unit 10, the signal detector 20, the scaling unit 30, And a map processor 40.

The user interface 10 is a block input by the user and provides the scaling unit 30 with the zoom in / out and panning signals input by the user. Thereafter, the user interface unit 10 provides the scaling unit 30 with the changed zoom in / out and panning signals when the horizontal / vertical data pointer movement occurs by the user at the coordinates displayed by the map processor 40.

At this time, the signal detector 20 is a block for determining the type of signal input from the outside, and the scaling unit 30 detects an active resolution and a horizontal / vertical data start point of the input signal. To provide.

The scaling unit 30 transmits a horizontal / vertical start point to the map processor 40 according to a zoom factor, that is, a zoom level signal input when the user inputs the zoom in / out and panning signals of the user interface unit 10. In addition, it provides the map processor 40 with the changed zoom in / out and panning signals provided by the user interface unit 10, and the map processor 40 reads the horizontal / vertical position relative to the center on the map. The scaling is performed in comparison with the center horizontal / vertical data start value in the zoom level state, that is, the signal resolution and the frame rate are changed to be displayed through the PDP module S1.

The map processor 40 receives the current horizontal / vertical data start point from the scaling unit 30 and displays it as coordinates. Then, the map processor 40 calculates the changed zoom in / out and panning signals provided from the scaling unit 30 relative to the center and coordinates. Denotes as.

With reference to the flowchart of FIG. 2, the position display and movement method at the time of zooming a PDP video signal according to the present invention will be described in detail based on the above-described configuration.

First, the signal detector 20 detects an active resolution and a horizontal / vertical data start point of an input signal to determine the type of a signal input from the outside, and then, the signal detector 20 detects the signal type. Provide (step 201).

The user interface unit 10 provides the scaling unit 30 with the zoom in / out and panning signals input by the user (step 202).

The scaling unit 30 maps the horizontal / vertical data start point to the map processor 40 according to a zoom factor, that is, a zoom level signal input when the user inputs the zoom in / out and panning signals of the user interface unit 10. (Step 203).

The map processor 40 receives the current horizontal / vertical data start point from the scaling unit 30 and displays it as coordinates (step 204).

When the horizontal / vertical data pointer movement is generated by the user at the coordinates displayed by the map processor 40, the user interface unit 10 provides the scaled unit 30 with the changed zoom in / out and panning signals (step). 205).

The scaling unit 30 provides the map processor 40 with the changed zoom in / out and panning signals provided by the user interface unit 10 (step 206).

The map processor 40 calculates and displays the changed zoom in / out and panning signals provided from the scaling unit 30 as the coordinates (step 207).

The scaling unit 30 reads the horizontal / vertical position relative to the center on the map from the map processor 40 and compares it with the center horizontal / vertical data start value at the current zoom level to scale, that is, signal resolution and frame. The ratio changing operation is performed to display through the PDP module S1 (step 208).

As described above, the present invention displays the original image of the scaled video image as a map on the screen during zoom in / out and panning of the digital imaging apparatus. When the pointer on the map moves when the pointer on the map is remembered, the coordinates of the center of the map are calculated, converted into coordinates of the center of the original signal, and the zoom and pan operations are performed to facilitate the location of the current image within the degraded image. Fast image position movement using the map pointer has the effect of providing convenience.

Claims (2)

In the plasma display panel (PDP) image signal zoom in / out (in / out) position display and movement method, Detecting active resolution and horizontal / vertical data start points of signals input from the outside; Displaying the horizontal / vertical start point as coordinates according to the zoom in / out and panning signals input by the user; When a horizontal / vertical data pointer movement is generated by the user at the displayed coordinates, calculating and displaying the coordinates on a map based on the generated and changed zoom in / out and panning signal centers; Reading the horizontal / vertical position relative to the center on the map and comparing the center horizontal / vertical data start value at the current zoom level to perform a scaling operation and displaying the same through the PDP module; Position display and movement method when zooming the PDP video signal comprising a. The method of claim 1, wherein the scaling is performed by changing a signal resolution and a frame rate.