KR20100028289A - Apparatus and method for displaying of image information in image display device - Google Patents

Abstract

PURPOSE: An image information display method of an image display device and a method thereof are provided to easily and conveniently confirm a desired regeneration point of an image received from the outside or recorded contents. CONSTITUTION: A control part performs an image output mode(305). The control part confirms a movement location of a progress bar when different key input signals of a numeric key or a direction key is detected for movement of a progress bar pointer(310,315). The control part confirms regeneration time on a regeneration point(320). The control part highlights thumbnail including the checked replay timing(325). The control part displays the time information of the regeneration timing on the thumbnail(330).

Description

Apparatus and method for displaying of image information in image display device}

The present invention relates to an image display device, and more particularly, to an apparatus and method for displaying image information in an image display device.

With the spread and popularization of digital TVs, users can record and easily play broadcast programs without an external device. In particular, the PVR (Personal video recorder) stores the TV broadcast signal as a digital signal on a hard disk or other storage media, providing an environment that can be replayed at any time as well as in real time.

Unlike conventional analog recorders, the PVR stores TV broadcast signals as digital signals, thereby making it possible to easily play back unwanted scenes, and some PVRs provide a program editing function for deleting unwanted scenes.

  When outputting a broadcast image previously stored or received from the outside, a user can easily watch an image of a desired position by displaying a progress bar indicating a playback state of a thumbnail or an image together.

However, since the movement and thumbnail of the pointer representing the video playback point in the progress bar are operated separately or the pointer is moved, it is not clear what the corresponding thumbnail is. Therefore, the user cannot change the playback point in the thumbnail or progress bar. There is a difficulty in clearly recognizing the distinction.

That is, as shown in FIG. 1, as the time of the playback time moved by the current user is displayed small between the progress bar and the thumbnail, it is difficult to recognize the movement of the thumbnail and the movement of the playback time.

An object of the present invention is to enable a user to easily watch an image of a desired playback time point in a video display device for solving the problems of the prior art as described above.

In addition, an object of the present invention is to enable easy identification of information on a desired playback time.

In order to achieve the above object, the present invention comprises the steps of displaying a video including a progress bar for displaying the progress of the video playback; Detecting movement of a pointer of the progress bar; Highlighting a thumbnail including a playback time point of the moved pointer; And displaying the reproduction information in which the pointer is located in the highlighted thumbnail.

The image display device according to the present invention has an effect of easily confirming an image of a desired playback time with respect to a stored recording or an image received from the outside and easily recognizing information of the corresponding time.

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

1 is a block diagram of a video display device to which the present invention is applied.

The image display device to which the present invention is applied may include a receiver 100, a processor 120, an outputter 130, a controller 140, a storage 150, and an interface 160.

 The receiving unit 110 may include an external signal input unit 111 and a tuner unit 112, and the processing unit 120 may include an image / audio signal switching unit 121, an A / D converter 122, an MPEG decoder, and an image. And an audio signal processor 123 and an image memory unit 124. The output unit 130 includes an image signal output unit 131, a display module 132, an audio signal output unit 133, and a speaker. 134).

The external signal input unit 111 receives an external signal received from an external device such as a digital versatie disk (DVD), a set top box, a camcorder, etc., and provides the external signal input unit 121 to the video / audio signal switching unit 121.

The tuner unit 112 tunes at least one channel according to the control signal of the controller 140, and decodes or separates the image / audio / data signal received through the tuned channel to the image / audio signal switching unit 121. And so on. The data signal includes electric program guide (EPG) information that stores information such as start and end times of a broadcast program broadcasted on a channel.

The data signal may be decoded into data information by decoding, and control information of a program, which is at least a part of the information, is transmitted to the controller 140 directly or indirectly, and the controller 140 uses the content to be broadcasted in the current channel. Other channels in which the same content is broadcasted may be searched.

The tuner unit 112 includes an analog tuner 112a for receiving an analog signal, a digital tuner 112d for receiving a digital signal, an analog decoder 112b for decoding an analog signal, and a digital decoder 112e for decoding a digital signal. It may include.

The video / audio signal output through the digital decoder has a form of a transport stream (TS). The video / audio signal switching unit 121 selects at least one of the channels provided from the external signal input unit 111 and the tuner unit 112 and separates the video / audio signal of the channel as necessary. The MPEG decoder and the video / audio signal processor 123 are provided. The video / audio signal switching unit 121 may include a demultiplexer capable of separating video / audio data signals.

When the signal selected by the video / audio signal switching unit 121 is an analog signal, after the video signal and the audio signal of the analog signal are separated, the analog video signal is converted into a digital video signal by the A / D converter 122 and the MPEG The decoder and the video / audio signal processor 123 may be provided, and the analog audio signal may be provided to the audio signal output unit 133. When the signal selected by the video / audio signal switching unit 121 is a digital signal, both the video signal and the audio signal of the digital signal may be provided to the MPEG decoder and the video / audio signal processing unit 123.

The MPEG decoder and the video / audio signal processing unit 123 restore and process the video / audio stream from the video / audio signal switching unit 121 into video / audio data, and the processed video signal outputs the video signal. The audio signal provided to the unit 131 and processed is provided to the audio signal output unit 133. In addition, the MPEG decoder and the video / audio signal processor 123 may mix the OSD data provided by the controller 140 with the restored and processed video signal.

The image memory unit 124 provides a memory area required for the decoder and the signal processing of the MPEG decoder and the video / audio signal processor 123. In particular, the memory unit 150 is used to compare the content identity of two or more channels when the symbol use step and the image comparison step, which can be used in a search step having different channels that broadcast the same content, are performed.

The video signal output unit 131 processes the video signal output from the MPEG decoder and the video / audio signal processing unit 123 through a display module 132 and the audio signal output unit 133 The audio signal output from the MPEG decoder and the video / audio signal processor 123 is processed in a form that can be output through the speaker 134.

The interface unit 160 may be, for example, a remote controller capable of controlling the operation of the image display apparatus at a long distance or a local key button attached to the image apparatus, and receives various control command signals of the image display apparatus from a user. Receives a command and information is converted into a control signal and transmitted to the control unit 140.

The controller 140 controls the tuner unit 112, the video / audio signal switching unit 121, the MPEG decoder, and the video / audio signal processing unit 123 and controls other components of the video display device as necessary. Can be designed and connected.

The memory unit 150 stores information input by a user or data generated and managed by the controller 140.

Thumbnail extraction during video recording will be described with reference to FIG. 2 for the operation according to the configuration of the above-described video display device.

Referring to FIG. 2, since the basic unit of the broadcast stream is a frame, independent playback can be performed in a unit of group (GOP) in which several frames (I / P / B PICTURE) are combined, so the minimum unit of section editing is the GOP. It must be in units.

In general, since the GOP unit is about 0.5 seconds, for example, if the editing section is set in 60 seconds, approximately 120 GOPs exist in one editing section. Extraction criteria of the thumbnail image may be determined in units of a predetermined time, and a scene change may be detected using histogram information for each frame, and a thumbnail image may be extracted for each scene change point.

The time unit for extracting the thumbnail image can be set by the user, and it is preferable to extract the thumbnail image every 60 seconds in consideration of the accuracy of editing and the understanding of the overall flow of the program. In addition, extracting the thumbnail image in scene change units may suggest a more convenient editing method because a unit that a user wants to edit generally has more semantic scene change units of a program than a physical time unit.

The thumbnails extracted as described above may be displayed together with a progress bar that flexibly displays playback information at a predetermined position of the screen when the image is displayed, according to an exemplary embodiment of the present invention.

Hereinafter, the display operation of the image including the thumbnail will be described in detail with reference to FIGS. 4 to 5.

The controller 140 performs an image output mode that reads an image input through the receiver 110 or pre-stored in the memory 150 and outputs the image through the display 132 and the speaker 136 (step 305). In the image output mode according to an embodiment of the present invention, an example of outputting an image of a pre-stored recording in the memory unit 150 will be described.

In addition, the image output mode according to an embodiment of the present invention displays a corresponding image and displays a thumbnail extracted and stored during recording and a progress bar as shown in the screen example of FIG.

When the controller 150 detects various key input signals such as a direction key or a numeric key for moving the pointer of the progress bar from the user during the image output mode (step 310), the controller checks the input key to determine the progress bar. For example, when the direction key input is detected, the playback time is shifted in the reverse direction of the playback direction for the input of the left key and in the playback direction for the input of the right key.

Therefore, the controller 150 checks the movement position of the playback time point and checks the playback time of the moved playback time. (Step 320) The controller 150 checks the checked playback time point of the thumbnail displayed on the top of the progress bar. The included thumbnail may be highlighted (step 325) and time information of a playback time at which the pointer of the progress bar is located on the thumbnail may be displayed as illustrated in the screen example of FIG. 5 (step 330).

The time information at the time of reproduction may be displayed by being superimposed with the image of the thumbnail, highlighting the thumbnail for a predetermined time, displaying the play time information, and restoring the thumbnail to its original state when playing the image of the corresponding position.

1 is a diagram illustrating a screen according to a conventional image information display.

2 is a block diagram of a video display device to which an embodiment of the present invention is applied.

Figure 3 is a schematic diagram when thumbnail extraction according to an embodiment of the present invention.

4 is a flowchart illustrating an operation of displaying image information according to an exemplary embodiment of the present invention.

5 is a diagram illustrating a screen when displaying image information according to an embodiment of the present invention.

Claims (7)

Displaying an image including a progress bar displaying a progress of image reproduction; Detecting movement of a pointer of the progress bar; Highlighting a thumbnail including a playback time point of the moved pointer; And displaying the playback information in which the pointer is located on the highlighted thumbnail. The method of claim 1, wherein a thumbnail including a playback time point that is moved when the pointer is moved is displayed to be highlighted. The method of claim 1, wherein when displaying the playback information in the thumbnail, the playback information is overlapped with a thumbnail image to display the playback time information. The method of claim 1, wherein after displaying the reproduction information according to the movement of the progress bar pointer for a predetermined time, the image information is reproduced from the corresponding time point. A display unit including a progress bar indicating a reproduction progress state of an image and displaying an image received or stored from outside, and displaying a thumbnail image corresponding to a movement of the pointer of the progress bar; An interface unit for receiving a pointer movement control signal of the progress bar; And a controller configured to detect movement of the pointer of the progress bar, check playback point information of the detected pointer, and control to display playback point information on a corresponding thumbnail. The image information of claim 5, wherein the display unit displays a thumbnail image displayed as the progress bar is moved, and displays the playback information by overlapping the playback information on the image of the thumbnail. Display device. The apparatus of claim 5, wherein the interface unit receives a key signal received from a local key or a remote controller provided in the image display apparatus.

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