KR100503469B1 - Video zoom apparatus and the method thereof - Google Patents

Abstract

The present invention relates to an image magnification device having a zoom magnification function for zooming a specific region for various input images in a digital TV. The present invention relates to an input image memory unit for storing data of an area to be enlarged; And a region selection controller which stores data corresponding to a region to be enlarged in the input image to the input image memory unit, and controls the input image memory unit and a region selection controller to adjust the region information and the zoom ratio to be enlarged in the input image. And a magnified image processing unit for making an enlarged image from an image stored in the input image memory unit under the control of the controller, and outputting a control signal according to the control unit. Viewed from an image device for generating a zoom image by enlarging a partial area of data According to an image magnification method, there is provided a standby step for selecting a zoom region using an enlargement function selection key installed in at least one of the imaging apparatus main body and a remote controller for operating the imaging apparatus, and for operating the imaging apparatus main body and the imaging apparatus. A zoom region selection step of selecting a zoom region by using a zoom region selecting means installed in at least one of the remote controllers, and when the zoom region specified above is a screen that can be enlarged and displayed in full screen, an enlargement ratio selection screen is displayed and the enlargement ratio selection means is displayed. And an enlarged image processing step of enlarging and outputting the zoom region at an enlargement ratio at the selected enlargement ratio.

Therefore, the image magnification device having the above-described configuration can shorten the time for selection and movement of the part to be viewed by the cursor keys, and allows the user to select and use the magnification ratio arbitrarily. This would have the effect of providing a viable imaging device.

Description

Image Zoom Device and Method {VIDEO ZOOM APPARATUS AND THE METHOD THEREOF}

The present invention relates to an image magnification apparatus having a zoom magnification function for zooming a specific region with respect to various input images in a digital TV.

In general, digital TV has an advantage that can easily implement a number of functions that were possible only through a computer. Among them, the zoom function that can enlarge and view only the desired part is implemented as one of the special additional functions in the analog TV which is already commercialized. Magnification in analog TVs magnifies the output image by adjusting the horizontal and vertical deflection of the electron beam emitted from the CRT's electron gun.

Alternatively, as illustrated in FIG. 1, an additional zoom controller and a memory may be added to convert an input signal into a digital signal. In other words, the channel tuned by the tuner 11 is demodulated into an image signal and an audio signal by the audio / video (A / V) processing unit 12 and then digitized by the analog / digital (A / D) converter 13.

The digitized signal is stored in the memory 16 of the zoom processor 14, and the memory 16 outputs only the signal of the corresponding area to the interpolator 17 under the control of the zoom controller 15.

The interpolation unit 17 interpolates an input signal to a size according to a zoom magnification and stores the received signal in the memory 19, and the data stored in the memory 19 is again output to the display apparatus under the control of the display control unit 18. .

However, the analog method implemented so far or the zoom function as shown in FIG. 1 is merely an enlargement function of some regions, and a method of designating the enlarged region is difficult and its magnification is extremely limited. Therefore, the user is limited in enlarging an arbitrary area of interest at various magnifications, and in particular, it is inconvenient for the user because there is no zoom function for easily selecting and enlarging only the portion of interest.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an imaging apparatus that can easily select a portion to be enlarged and can enlarge an arbitrary region at various magnifications.

As a preferred embodiment of the image magnification device according to the present invention for achieving the above object,

An input image memory unit for storing data of an area to be enlarged and an area selection controller for storing data corresponding to an area to be enlarged in the input image, and an input image memory unit and an input image memory unit and an area selection controller And a magnification image processor for adjusting magnification information and zoom magnification of the image to be enlarged, and outputting a control signal according to the region selection controller, and a magnified image processor for making an enlarged image from an image stored in the input image memory unit under the control of the controller. It is composed.

The control unit displays the zoom ratio selection screen on the display device so that the user can select only when the area to be enlarged can be enlarged to the full screen.

The controller may display a sub screen so that a user can easily select an enlarged area by displaying a start position and an end position to be enlarged in the displayed image.

In an image device for generating a zoom image by enlarging a partial region of image data reproduced from an image device, a preferred embodiment of an image magnification method according to the present invention for achieving the above object is the image device. A zoom step selecting means installed in at least one of a main body and a remote control for operating the imaging apparatus and a zoom step selecting means for selecting a zoom region in at least one of the main body and the remote controller for operating the imaging apparatus; A zoom region selection step of selecting a zoom region by using and the zoom region specified above is a screen that can be enlarged and displayed in full screen, and displays an enlargement ratio selection screen and enlarges the zoom region at an enlargement ratio selected by an enlargement ratio selection means. An enlarged image processing step of expanding and outputting at a ratio is performed.

The zoom region selection step includes displaying a start point of a zoom region to be selected, setting the start point using the zoom region selection means, displaying an end point of a zoom region to be selected, and zooming the end point. And setting using the area selection means, wherein the selected zoom area is opaquely displayed.

In the enlarged image processing step, when the designated zoom region cannot be displayed in full screen, it is preferable to process and output the PIP screen.

The zoom area designating means and the enlargement ratio selecting means are constituted by the same up, down, left, and right arrow keys to simplify the operation.

In addition, the enlargement function selection key preferably performs a standby function for selecting a zoom region and an enlargement function for displaying data on the display apparatus by enlarging data of the selected zoom region at an enlargement ratio.

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

A schematic feature of the present embodiment is that the video data is divided into a plurality of regions and the zoom region selection button of the remote controller is used to zoom the divided region screen according to the zoom region designation key to a desired magnification, and the zoomed screen with a cursor. This will allow you to display the location on the full screen.

2 is a block diagram showing an internal configuration of a video recording / playback apparatus 100 composed of a combo system, in particular, a DVDP / VCR combo system capable of performing the functions of DVDP and VCR. Since these control operations are the same as in the conventional known art, only a brief description will be given first, and the execution operation of the zoom function, which is a feature part of the present invention, will now be described with reference to the flowchart of FIG.

The video recording / reproducing apparatus 100 is output from a VCR unit 180 performing a function of a general VCR, a DVDP unit 120 performing a function of a general DVDP, a VCR unit 180 and a DVDP unit 120. External signal input unit 140, VCR unit 80 and DVDP unit 120 for providing a signal input from an external device such as a selection unit 130, a camcorder, etc. to perform a selection operation for the signals to the selection unit 130 Output unit 150 for providing signals outputted from the < RTI ID = 0.0 >) < / RTI > to a peripheral device such as a TV or an amplifier, and a zoom processor 160 for adding a zoom function to the video signals output from the VCR unit 180 and the DVDP unit 120. Etc. are provided.

The VCR unit 180 includes a VCR deck 111 for recording a signal on a magnetic tape or reproducing a signal recorded on a magnetic tape, and a video block for processing video and audio signals to be recorded or reproduced for the VCR deck 111. And an audio block 113, a VCR deck 111 and a VCR controller 114 for controlling the overall operation of the video block 112 and the audio block 113, and the like. In addition, the VCR unit 180 may include a display 116 for externally displaying information such as its operation state and operation mode so that the user can know, an operation panel 117 for receiving various commands from the user, and a remote controller ( A remote control sensor 118 for receiving various commands from the user through 200 is provided.

In addition, the VCR unit 180 includes a command storage unit 115 for storing various commands. In the command storage unit 115, codes relating to various operation commands necessary for the operation of the VCR unit 180 and the DVDP unit 120 are stored. Also, each operation command is a command used only in the VCR unit 180. Information about whether the command is used only in the unit 120 or used in both the VCR unit 80 and the DVDP unit 120 is also stored.

The VCR controller 114 operates the system by processing an input command, and in particular, controls the zoom processor 160 to execute a zoom function related to the present invention according to the operation of the remote controller 200.

The DVDP unit 120 includes a DVD deck 121, a DVD servo 122, a DVD control unit 123, a DVD encoder 124, and the like. The DVD deck 121 reads data recorded on the DVD in order to perform a playback operation on the DVD, and the DVD servo 122 performs position control and speed control of the DVD deck 121. The DVD encoder 124 receives the data read by the DVD deck 121 through the DVD control unit 123 and outputs DVD image data and DVD sound data. The DVD controller 123 controls overall operations of the DVD deck 121, the DVD servo 122, and the DVD encoder 124.

In addition, the VCR controller 114 and the DVD controller 123 are connected to each other to transmit and receive commands.

The selector 130 receives the output of the DVD encoder 124, the output of the video block 112 and the audio block 113, the signal from the input unit 140, and the like. The selector 130 is controlled by the VCR controller 114 and the DVD controller 123 to perform a selection operation on the input signal, and the output of the selector 130 is input to the zoom processor 160.

The zoom processing unit 160 outputs the enlarged image to the output unit 150 by allowing the user to enlarge the input image at various magnifications in an arbitrary region of interest according to a control signal input from the VCR controller 114. Function.

FIG. 2B is a block diagram illustrating an image magnification apparatus of a digital TV according to the present invention. The input image memory unit 162 includes at least one line memory and stores input images for each line, as shown in the drawing. And control the area selection control unit 161 and the input image memory unit 162 and the area selection control unit 161 to store data corresponding to an area to be enlarged in the input image in the input image memory unit 162. The input image memory unit 162 is controlled by the VCR controller 114 and the VCR controller 114 which adjust the area information and the zoom magnification to be enlarged in the image to be output and output the control signal according to the region selection controller 161. And an enlarged image processor 163 for generating and outputting an enlarged image from the image stored in the image.

Here, the input video may be any of ATV (Advanced Television), NTSC (National Television Standards Committee), and VGA (Video Graphics Array). In this case, the luminance (Y) data is determined depending on the size and magnification of the input image regardless of the type of the input image, while the color (C) data is the size and magnification of the input image and the type of the input image. The memory storage process may vary depending on the color format of the output image.

The output unit 150 receives an enlarged signal from the zoom processor 160 and outputs a signal for an image and an audio. The output unit 150 is connected to a peripheral device such as a TV or a sound device, so that the image and sound is output from the peripheral device.

The external signal input unit 140 is connected to the selector 130 and functions to transmit a signal input from the outside to the selector 130. The signal output terminal of an external device such as a camcorder is connected to the external signal input unit 140. Therefore, the signal recorded in the external device may be transmitted to the image recording / reproducing apparatus 100 through the external signal input unit 140, and also recorded on the magnetic tape using the VCR unit 180 or through the TV. Can play.

In the flash memory 119, various programs related to the functions of the DVD controller 123 and the VCR controller 114 are recorded, and a zoom selection screen related to the present invention is stored and displayed on an external display device. A GUI (Graphic User Interface) storage unit 119a in which a program (GUI screen) is stored is installed.

In the video recording / reproducing apparatus 100 having such a configuration, the VCR controller 114 loads an operating program mounted in the flash memory 190 at the time of startup and simultaneously transmits relevant startup data to the DVD controller 123 to operate the system. After that, the system is controlled by the operation buttons of the normal operation panel 117 and the remote controller 200.

Hereinafter, the zoom magnification function by the VCR controller 114 according to the key selection of the remote controller 200 using the image recording / reproducing apparatus 100 having the above configuration will be described in more detail. In one embodiment of the present invention, the VCR controller 114 is described as a main control unit for controlling the system, but the DVD controller 123 may control the system, and a separate main controller (not shown) may be installed to install the VCR. The control unit 114 and the DVD control unit 123 may be controlled respectively, or may be implemented by using a separate zoom control unit (not shown).

First, with reference to FIG. 3 in which a remote controller 200 which is an external input device of the image recording / reproducing apparatus 100 of the present invention is described, the elements related to the zoom magnification function will be described.

In the drawing, reference numeral 211 denotes a menu key used for instructing loading and closing of a GUI screen consisting of a menu screen, and portions indicated by 213, 215, 217, and 219 are normally classified in the GUI screen and listed in the menu. In the present invention, the key is used to indicate the movement of the cursor, but in the present invention, it is used as a zoom area designation key and an enlargement ratio selection key used to select an area to be enlarged. Reference numeral 221 denotes an enter key normally used to select a menu, and 223 denotes a return key used to return to the previous screen from the current screen.

In addition, a key denoted as zoom (ZOOM) 218 is used as a key for performing a standby function for selecting a zoom area and an enlarged function for displaying data on the display apparatus by enlarging the data of the selected zoom area at an enlargement ratio.

The remaining keys are known keys for manipulating the video recording / reproducing apparatus 100, the display apparatus (not shown), and the like, and a detailed description of the function of each key will be omitted.

Hereinafter, the zoom magnification function will be described in detail with reference to FIGS. 4 to 12. 4 is a screen for viewing an image, FIG. 5 is a diagram showing a starting point of an area to be enlarged by pressing a zoom key, FIG. 6 is a screen for moving a start point, and FIG. 7 is an end point of an area to be enlarged. The screen which started to move, FIG. 8 is a screen which sets the area to enlarge, FIG. 9 is a figure which shows the magnification, FIG. 10 is a figure which shows the enlarged image as a PIP screen, FIG. 11 is another embodiment of setting an enlarged area, 12 is a flowchart for explaining a zoom magnification function. First, when a user watches an image using the image recording / reproducing apparatus 100 (see FIG. 4) and wants to enlarge some images, the user presses the zoom 218 key of the remote controller 200 (step S110). When the VCR controller 114 detects the input of the zoom 218 key of the remote controller 200 through the remote controller sensor 118, the VCR controller 114 is connected to the zoom function in the GUI storage unit 119a of the flash memory 119. The start screen for starting the magnification function is displayed on the display device by reading the related screen (step S120). This starting coordinate is shown in FIG. That is, the screen is divided into a grid of a certain size and displayed in the shape of a grid paper. In the drawing, the portion denoted by the point "A" is marked as the starting point of the area to be enlarged. Here, as shown in the drawing, the VCR controller 114 stores the correspondence relationship and the area selection controller 161 so that the arrangement of 16 rows and 22 columns and the zoom area of the image when the zoom function is executed are accompanied by visual association. To control the area to be enlarged.

Such a starting point (A) is usually configured to be specified by a fixed point at the time of shipment from the factory, but can be changed by the user. In this case, the user sets the point of the area to be enlarged using the left and right up and down hockey 213, 215, 217, 219 of the remote controller 200. The user presses the right arrow 215 six times on the point “A” shown in FIG. 5 and presses the upper arrow 217 three times to set the starting point A of the area to be enlarged (see FIG. 6) (step S130). ). The setting of the start point A is normally set by using the "ENTER" key of the remote controller 200. After setting the start point A of the area to be enlarged, the end point B of the area to be enlarged is set again using the left and right up and down keys 213, 215, 217, and 219 of the remote controller 200. First, when the user presses the right key 215 three times, the end point B is displayed as shown in FIG. When the lower key 219 is pressed again three times, the end point B is moved as shown in FIG. 8. In this case, it is preferable that the selected area is displayed by semi-transparent processing. If the end point B of the area to be enlarged is set as described above (step S140), the VCR controller 114 displays the selected area by translucent processing (step S150). At this time, the VCR controller 114 determines whether the area selected for the enlargement can be enlarged to the full screen (step S160).

FIG. 11 is a diagram illustrating a magnification area setting, in which the user does not use the grid scale made by the manufacturer as described above when there is no problem in supporting the resolution of the video recording / reproducing apparatus 100. (A: start point, B: end point), that is, a region can be selected by dragging a mouse, and an enlarged screen can be selected by specifying an arbitrary region (see FIG. 11).

When the enlargement is possible in step S160, as shown in FIG. 9, a pull down menu is displayed on the screen so that the user can select a ratio of the enlarged image by himself / herself (step 170) (see FIG. 9). In this case, the user can place the selection bar 300 on the desired image type by using the up, down, left, right, right, right, left, right, right, left, right, left, right, left, right, and right of the remote control 200, and press the enter key 221 to select an enlargement ratio. .

Here, if zoom is selected in case of outputting high definition (HD) image in HD size or outputting standard definition (SD) image in SD size, only a part of the entire screen is enlarged. If you select the zoom in case of outputting in SD class, you can enlarge only part of the entire screen by changing the down sampling ratio. In other words, when outputting HD-quality video to SD-class, selecting zoom means that the ratio is not changed, not down sampling. In addition, it is desirable to have a "USER" selection portion so that the user can enlarge at a desired ratio.

When the user selects an enlargement ratio in step S170 (step 180), according to the magnification of the selected region image, the VCR controller 114 transmits the data input from the region selection controller 161 to the input image memory unit 162. The image is stored and processed by the enlarged image processor 163 to output the enlarged image (step S190). In addition, the image output from the magnified image processing unit 163 may be output only with the enlarged image or may be inserted into an existing image and output.

If it is not possible to display the full screen in the step S160, as shown in FIG. 10, the PIP screen is processed and output (step S161).

Therefore, it is possible to know at a glance which area of the normal image is the zoom image that is magnified and displayed on the screen of the display device.

Non-explanatory steps S111, S131, and S141 are steps for confirming the end of the selection. When the user presses the "ENTER" key while the enlarged screen is displayed to exit the zoom mode, all of the steps are processed as "end". If you don't press ", it's a step back to the last step.

While the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the spirit of the invention, and such modifications and variations belong to the appended claims.

According to the image magnification apparatus according to the present invention as described above, it is possible to shorten the time for the selection and movement of the portion to be viewed by the cursor key, and to freely select the magnification ratio so that the user can use it. It is effective to provide an image device capable of selecting an enlargement ratio.

1 is a block diagram of a conventional video magnification apparatus;

2 is a block diagram showing an internal configuration of a video reproducing apparatus which is a DVDP / VCR combo system;

3 is a configuration diagram of a remote controller;

4 is a screen for watching an image,

5 is a diagram showing a start point of an area to be enlarged by pressing a zoom key on a screen;

6 is a screen for moving the start point to the desired position,

7 is a screen starting to move an end point of an area to be enlarged;

8 is a screen for setting an area to be enlarged;

9 shows a magnification;

10 is a view showing a magnified image as a PIP screen;

11 shows another embodiment of the enlarged area setting, and

12 is a flowchart for explaining a zoom magnification function.

* Description of symbols on the main parts of the drawings *

100: video playback device 114: VCR control unit

120: DVDP unit 130: selection unit

140: input unit 150: output unit

160: zoom processing unit 161: area selection control unit

162: input image memory unit 163: enlarged image processing unit

180: VCR unit 200: remote control

Claims (8)

 An input image memory unit for storing data of an area to be enlarged; and An area selection controller configured to store data corresponding to an area to be enlarged in the input image in the input image memory unit; and Control the input image memory unit and the area selection control unit to display the start position and end position to be enlarged in the input image and to display the sub-screen divided into a grid of a certain size so that the enlarged region can be selected. Only when the area to be enlarged is full screen, the zoom magnification selection screen is displayed on the display device so that the user can select it. If the designated zoom area cannot be displayed in full screen, the screen is processed as a PIP screen. And a control unit for outputting the control signal to the area selection control unit so as to be output. And an enlarged image processing unit configured to generate an enlarged image from an image stored in the input image memory unit under the control of the controller.  The method of claim 1, wherein the zoom ratio selection screen is And a pull-down menu for selecting the type of image to be enlarged. delete  A zoom image generating method of an imaging apparatus for generating a zoom image by enlarging a partial region of image data reproduced from an imaging apparatus, the method comprising: A standby step of selecting a zoom region using an enlarged function selection key installed in at least one of the imaging apparatus main body and a remote controller for operating the imaging apparatus; and A zoom region selection step of selecting a zoom region in a sub-screen in which a screen is divided into a grid having a predetermined size by using a zoom region selecting means installed in at least one of the remote controllers; and If the designated zoom area is a screen that can be enlarged and displayed in full screen, an enlargement ratio selection screen is displayed, and the zoom area is enlarged at an enlargement ratio and outputted at an enlargement ratio selected by an enlargement ratio selection means, and the designated zoom area is a full screen. And a magnified image processing step of outputting the processed PIP screen when it cannot be displayed as a digital image magnification method.  The method of claim 4, wherein the enlargement ratio selection screen is  And a pull-down menu for selecting the type of image to be enlarged. delete delete delete