KR100667839B1 - Image recoding and reproducing apparatus and method thereof - Google Patents

Abstract

An image recording and reproducing apparatus and a method thereof are provided to record and reproduce an image signal of a desired image area of a user from an inputted image without using a computer or separate editing equipment, thus the image signal of the requiring image area is easily recorded and reproduced from the inputted image. A display(103) displays a window for enabling a user to select a desired image area from an inputted image. A user interface(101) receives the user's command or information. A controller(102) displays the window on the display(103) if a partial image recording or/and reproducing mode is on. A partial image detector(110) detects an image signal included in the window as a partial image from an inputted image signal based on information on the window provided from the controller(102), and outputs the detected image signal on the display(103). A storage(130) stores the image signal outputted from the partial image detector(110).

Description

Image recoding and reproducing apparatus and method

1 is a functional block diagram of a video recording and reproducing apparatus according to an embodiment of the present invention.

2A is an exemplary view of a window for detecting a partial image from an input image.

FIG. 2B is an example of reproducing an image included in the window shown in FIG.

3 is a functional block diagram of a video recording and reproducing apparatus according to another embodiment of the present invention.

4 is a flowchart illustrating an image recording and reproducing method according to another exemplary embodiment.

The present invention relates to an image recording and reproducing apparatus and a method thereof, and more particularly, to an image recording and reproducing apparatus and a method for recording and reproducing an image signal of a desired area in an input image.

In the conventional video recording and reproducing apparatus, when a video signal is input, the input video signal is recorded and reproduced as it is. Therefore, when recording and reproducing the video signal of a part of the input image, the user must record the input video signal and then modify the recorded video signal using a separate process to reproduce the desired video signal. have.

For example, when the lower end of the input video is blank, the existing video recording and reproducing apparatus records the video signal with the lower blank as it is, so that the video signal with the lower blank at the time of reproduction is reproduced. Therefore, in order to remove the blank at the bottom of the input video, the video signal with the blank at the bottom is conventionally recorded using a video recording and reproducing apparatus, and then the recorded video signal is read using a computer or a separate editing device. It must be edited to remove the bottom blank and then played back after recording the edited video signal.

An object of the present invention is to provide a video recording and reproducing apparatus and a method for recording and reproducing a video signal of a desired video area in an input video without using a computer or a separate editing device.

According to an aspect of the present invention, there is provided an apparatus for recording and reproducing an image, the apparatus comprising: a display unit which displays a window for selecting a desired image area from an input image; A user interface unit for receiving a command or information of a user; A control unit which displays the window on the display unit when the partial image recording and / or playback mode is turned on; A partial image detection unit detecting a video signal included in the window as a partial image from the video signal input based on the information about the window provided from the controller, and outputting the detected video signal to the display unit; And a storage unit for storing the video signal output from the partial image detection unit.

According to an aspect of the present invention, there is provided a video recording and reproducing method, comprising: displaying a window for selecting a desired video area from an input video on a screen when a partial video recording and / or playback mode is turned on; If the size and position of the displayed window are selected, detecting a video signal included in the window as a partial image from an input video signal; It provides a video recording and playback method comprising the step of storing and playing the detected video signal.

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

1 is a functional block diagram of a video recording and reproducing apparatus according to an embodiment of the present invention. Referring to FIG. 1, an image recording and reproducing apparatus includes a user interface 101, a controller 102, a display 103, a partial image detector 110, an encoder 120, and a storage 130. do.

The user interface unit 101 receives a user command or information input by using a remote controller (not shown) or a function key (not shown).

When the partial image recording or / and playback mode on signal is received from the user interface 101, the control unit 102 provides the partial image detection unit 110 with information indicating the partial image recording or / and playback mode on in advance. A window having the size and position set in the display unit 103 is displayed. The window is for selecting an image area desired by the user from the input image as shown in 201 of FIG. FIG. 2A illustrates an example of a window for detecting a partial image from an input image, and reference numeral 201 of FIG. 2A corresponds to the window. Accordingly, the image area desired by the user may be expressed as a partial image area of the input image.

The control unit 102 may adjust the size and position of the window displayed on the display unit 103 based on the selection information on the size and position of the window received from the user interface unit 101. The selection information on the size and position of the window may be input based on various preset window size information and selection keys and direction keys provided in the remote controller or function keys.

That is, when a window size adjustment request is received from the user interface unit 101 in a state where a window having a preset size and position is displayed on the display unit 103 as shown in FIG. The preset window size information is displayed on the display unit 103. When one of the size information of the various windows to be displayed is received from the user interface unit 101, the control unit 102 adjusts the window displayed on the display unit 103 to a window having the selected size.

As shown in FIG. 2 (a), when the window is displayed on the display unit 103 and the information for controlling the up / down / left / right direction keys for adjusting the position of the window is received from the user interface unit 101, the controller ( 102 adjusts the position of the window displayed on the display unit 103 to up / down / left / right based on the received direction key control information. The controller 102 provides the selection information to the partial image detector 110.

In addition, when the display size information and / or the display position information for the image included in the window displayed on the display unit 103 is received from the user interface unit 101, the control unit 102 receives the received display size information or / and The display position information is provided to the partial image detector 110. When the display size information is, for example, full size, an image included in the window 201 is displayed on the display unit 103 in full size as shown in FIG. FIG. 2B illustrates an example of reproducing an image included in the window 201 of FIG. 2A. The display position information is for changing a display position of an image included in the window 201 illustrated in FIG. 2A and may include a start coordinate of a position to be displayed.

When the partial image recording and / or playback mode is turned on, the partial image detection unit 110 detects an image signal included in the window from the image signal input based on the information on the window provided from the control unit 102, The video signal is output to the display unit 103. The information on the window may be preset size and position information or information based on selection information on the size and position of the window.

That is, the partial image detector 110 includes switches 111 and 112, a detector 113, and a display size and / or display position adjuster 114.

When information indicating that the partial video recording and / or playback mode is on is received from the control unit 102, the switch 111 is switched to transmit an input video signal to the detector 113, and the switch 112 is displayed in size. And / or to output the video signal output from the display position adjuster 114 to the display unit 103. On the other hand, when the information indicating that the partial video recording and / or playback mode is off is received from the control unit 102, the switches 111 and 112 are switched to transmit the input video signal to the display unit 103. The input video signal is a digital video signal. Therefore, an analog / digital converter (not shown) for converting the video signal input to the front end of the partial image detector 110 into a digital video signal may be provided.

The detector 113 detects an image signal included in the window from the image signal received from the switch 111 based on the information about the window provided from the control unit 102. The detector 113 transmits the detected image signal to the display size and / or the display position adjuster 114.

If the display size information and / or the display position information are not provided from the control unit 102, the display size and / or display position adjuster 114 transmits the image signal transmitted from the detector 113 to the switch 112 as it is. . However, when the display size information and / or the display position information is provided from the control unit 102, the display size and / or the display position adjuster 114 may be configured from the detector 113 based on the provided display size information and / or the display position information. Adjust the display size and / or display position of the transmitted video signal.

For example, when display size information for displaying the detected partial image in full size is received, the display size and / or display position adjuster 114 outputs a video signal in which the detected partial image is adjusted to full size. In addition, when the display position information of moving the detected coordinates of the partial image by +5 pixels on the x axis and -5 pixels on the y axis is received, the display size and / or the display position adjuster 114 may start the coordinates of the detected image. Outputs a video signal by moving +5 pixels on the x-axis and -5 pixels on the y-axis.

The display unit 103 displays an input video signal and is controlled by the controller 102 to display a window for selecting a desired video area from the input image. The size and position of the window displayed on the display unit 103 may be adjusted by the controller 102 as described above.

In addition, the display unit 103 may display only the partial image output from the partial image detector 110. Since the signal output from the partial image detector 110 is a digital video signal, the display unit 103 includes a function of converting the digital video signal into a displayable form.

When the recording mode of the video recording and reproducing apparatus is turned on, the encoding unit 120 controls the digital video signal output from the partial image detection unit 110 by MPEG or Divx (Digital Video eXpress or Digital Internet Video). Express) encoding. The digital image signal output from the partial image detector 110 may be a partial image or an input image of the input image.

The storage unit 130 stores the encoded video signal output from the encoding unit 120. The storage unit 130 may store the video signal output from the partial image detector 110 without passing through the encoder 120.

3 is a functional block diagram of an image recording and reproducing apparatus according to another exemplary embodiment. The image recording and reproducing apparatus shown in FIG. 3 includes a user interface unit 301, a controller 302, a graphic processor 303, a synthesizer 304, a display unit 305, a partial image detector 306, and an encoder ( 307 and storage 308.

FIG. 3 generates information on a window to be displayed on the display unit 305 using the graphic processor 303 provided separately from the controller 302, and the information about the generated window is displayed on the display unit through the synthesis unit 304. 305 and an image signal output from the partial image detection unit 306 are provided to the display unit 305 through the combining unit 304, which is different from the image recording and reproducing apparatus shown in FIG. The synthesizing unit 304 synthesizes the information on the window provided from the graphic processing unit 303 and the image signal output from the partial image detecting unit 306 and outputs the synthesized image signal to the display unit 305.

The size and position of the window displayed on the display unit 305 may be adjusted by the controller 302 as described with reference to FIG. 1. The partial image detector 306 is configured in the same manner as the partial image detector 110 of FIG. 1. Therefore, when the display size information and / or the display position information of the partial image is provided from the control unit 302, the partial image detection unit 306 outputs the image signal whose display size or / and display position of the detected partial image is adjusted.

4 is a flowchart illustrating an image recording and reproducing method according to another exemplary embodiment.

First, when the partial video recording and / or playback mode is turned on (401), a window for selecting a desired video area from the input video is displayed on the screen (402). Accordingly, as described with reference to FIGS. 1 and 2A, a window is displayed on the display unit 103.

When the size and position of the window displayed on the screen are selected in the same manner as described with reference to FIG. Detection as an image (404).

When the information on the display size and / or the display position of the image detected as the partial image is received (405), the method shows the display size and / or the display position of the image signal detected as the partial image as described with reference to FIG. Adjust (406). The partial video signal whose display size and / or display position is adjusted or the partial video signal whose display size and / or display position are not adjusted are stored and reproduced (407).

4 illustrates an example of detecting a video signal included in the selected window from an input video signal when the size and position of the window displayed on the screen are selected. However, the video recording and reproducing method according to the present invention is configured to detect a video signal corresponding to a partial video from an input video signal based on information on a window displayed on the screen without going through a selection process for the size and position of the displayed window. Can be implemented.

The program for performing the video recording and reproducing method according to the present invention can be embodied as computer readable codes on a computer readable recording medium. Computer-readable recording media include all kinds of storage devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and may also be implemented in the form of a carrier wave (for example, transmission over the Internet). Include. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

As described above, the present invention provides a video recording and reproducing apparatus and a method for recording and reproducing a video signal of a desired video area in an input video without using a computer or a separate editing device, thereby providing a video recording and playback apparatus. Video signals in the video area can be easily recorded and reproduced.

In addition, the present invention can record and reproduce by adjusting the display size of the image included in the image area selected by the user or by changing the display position.

Claims (5)

In the video recording and reproducing apparatus, A display unit configured to display a window for selecting a desired image area from an input image; A user interface unit for receiving a command or information of a user; A control unit which displays the window on the display unit when the partial video recording and / or playback mode is turned on; A partial image detection unit detecting a video signal included in the window as a partial image from the video signal input based on the information about the window provided from the controller, and outputting the detected video signal to the display unit; And And a storage unit which stores an image signal output from the partial image detection unit. The image recording and reproducing apparatus of claim 1, wherein the controller further comprises a function of adjusting the size and position of the window displayed on the display unit based on the selection information on the size and position of the window received from the user interface. Device. The display apparatus of claim 1, wherein when the display size information and / or the display position information of the partial image is received from the user interface unit, the controller is configured to display the received display size information or / and the display position information. Provided to the partial image detector, And the partial image detector further includes a function of adjusting a display size or / and a display position of the detected video signal based on the display size information and / or display position information. In the video recording and playback method, If a partial image recording and / or playback mode is turned on, displaying a window for selecting a desired image area from an input image on a screen; If the size and position of the displayed window are selected, detecting a video signal included in the window as a partial image from an input video signal; And recording and reproducing the detected video signal. The method of claim 4, wherein the video recording and reproducing method comprises: And adjusting the display size and / or display position of the detected video signal based on information input by a user.

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