JP2014209693A - Electronic apparatus, electronic apparatus control method and electronic apparatus control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve convenience of a user in the case where an electronic apparatus having a comparatively larger image display part and an electronic apparatus (another electronic apparatus) having a comparatively smaller image display part than the former electronic apparatus are connected by wireless LAN and the like, by enlarging a part of an image displayed by the other electronic apparatus having the comparatively smaller image display part and allowing the enlarged image to be displayed by the electronic apparatus having the comparatively larger image display part.SOLUTION: An electronic apparatus of an embodiment comprises: an output part for transcoding image data of an image displayed on an image display part and outputting the resultant so as to enable the image to be displayed by another preset electronic apparatus; an acquisition part for acquiring positional information of enlarged display of the image, which is output from the other electronic apparatus; and a display part for creating image signals for the enlarged display by using the acquired positional information for the enlarged display and displaying the enlarged image on the image display part of the other electronic apparatus.

Description

  Embodiments described herein relate generally to an electronic device, an electronic device control method, and an electronic device control program.

In recent years, for example, an electronic device having a relatively large image display unit such as a television and an electronic device (another electronic device) having a relatively small image display unit than a television such as a tablet PC are connected via a wireless LAN or the like. The video displayed on the screen is transmitted to another electronic device, and the user can view the video displayed on the other electronic device.

However, in this case, since the other electronic device has a relatively small video display unit as compared with the electronic device (TV) as described above, it may be difficult to view the video displayed on the other electronic device. It was.

For this reason, when an electronic device having a relatively large image display unit and an electronic device (another electronic device) having a relatively small image display unit than this electronic device are connected by a wireless LAN or the like, the image is displayed relatively. A problem has been to improve the convenience of the user by enlarging a part of the video displayed on another electronic device having a small part so that the part can be viewed on an electronic device having a relatively large video display part.

JP 2005-3723 A JP 2006-80916 A

When an electronic device having a relatively large image display unit and an electronic device (another electronic device) having a relatively small image display unit than this electronic device are connected by a wireless LAN or the like, the image display unit is relatively small. It has been a problem to improve user convenience by enlarging a part of the video displayed on another electronic device so that the video can be viewed on an electronic device having a relatively large video display unit.

The electronic device according to the embodiment includes an output unit that transcodes and outputs the video data of the video displayed on the video display unit so that the video data can be displayed on another preset electronic device.

  The image processing apparatus further includes an acquisition unit that acquires position information of the enlarged display of the video output from the other electronic device.

  Further, the display unit includes a display unit configured to generate a video signal for enlarged display using the acquired position information of the enlarged display of the video and display the video signal on the video display unit.

1 is a diagram illustrating an example of a system related to an electronic device according to an embodiment and another electronic device. FIG. 2 is a block diagram illustrating a configuration of an electronic device according to an embodiment and a configuration of another electronic device. 6 is a flowchart for explaining operations of the electronic device according to the embodiment and other electronic devices. 6 is a flowchart for explaining the operation of the electronic apparatus according to the embodiment.

  Hereinafter, embodiments will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating an example of a system related to an electronic device according to an embodiment and another electronic device.

  Although not particularly illustrated, first, an image is first displayed on the display screen (image display unit) 8 of the electronic device (TV) 1 (main screen).

  The electronic device (TV) 1 can display the video data of the video displayed on the display screen (video display unit) 8 on, for example, another preset electronic device (tablet PC) 2. In this way, the data is transcoded and output to another electronic device (tablet PC) 2 (output unit).

  For example, as shown in FIG. 1, the video data of the entire video displayed and output on the display screen (video display unit) 8 is directed to another electronic device (tablet PC) 2 via, for example, a wireless LAN. To send.

  Then, the other electronic device (tablet PC) 2 receives the video data of the video displayed on the display screen (video display unit) 8 transcoded and output from the electronic device (TV) 1. Display output on the display screen 9 of the electronic device (tablet PC) 2 (second screen).

  The user performs a user operation (for example, touch operation such as multi-touch) 32 while viewing the entire video image displayed and output on the display screen 9, for example, a display screen (video display) of the electronic device (TV) 1. Part) 8 specifies the position (enlarged display position) of the image to be enlarged.

  Here, as shown in FIG. 1, for example, the user operation 32 designates the position of the enlarged display of the “mountain” image displayed and output on the display screen 9.

  Then, information on the position of the enlarged display of the video (enlarged display position information) is output from the other electronic device (tablet PC) 2 toward the electronic device (television) 1.

  That is, the other electronic device (tablet PC) 2 directs information on the position of the video (“mountain”) to be displayed in a partially enlarged manner designated by the user operation to the electronic device 1 via the wireless LAN or the like. Send.

  And the electronic device 1 acquires the positional information on the enlarged display of the image | video ("mountain") output from the other electronic device (tablet PC) 2 (acquisition part).

  Then, the electronic device 1 uses the position information of the enlarged display of the acquired video (“mountain”) to generate a video signal for enlarged display, and displays and outputs it on the display screen (video display unit) 8 (display unit) , Main screen).

  Here, transcoding is a technique for generating compressed data of another format without, for example, performing a composite processing (decoding) of a digital video signal on an original signal.

What is transcoded is called a transcoder. For example, a digital video with a bit rate of 15 Mbps is set to 8 Mbps without decoding and re-encoding. In principle, conversion can be performed at a higher speed, and deterioration of image quality can be prevented, rather than once decoding and re-encoding at a target bit rate.

  In addition, when the video compression code before and after conversion of video data is the same type, the transcode can reduce the size of the video data, such as reducing the resolution or irreversibly compressing the inter-frame prediction information with few operations. It is.

  FIG. 2 is a block diagram illustrating the configuration of the electronic device according to the embodiment and the configuration of another electronic device.

  An electronic device (main screen) 1 such as a television displays and outputs a desired video on a display screen (video display unit) 8.

For example, the video input unit 102 of the electronic device (television) 1 receives video data input from a broadcast, an external device such as a video camera, a recording medium such as a disk or a card. Then, the received video data is output toward the transcoder 103 and the decoder 110.

  If necessary, the transcoder 103 converts the video data output from the video input unit 102 into a video codec format in which an electronic device (second screen) 2 such as a tablet PC can display a video.

  In the conversion of the video codec format, for example, the codec format of the video data output from the video input unit 102 is HEVC (High Efficiency Video Coding) or H.264. 265 (ISO / IEC 23008-2) and the like. It is converted into a video codec format such as H.264.

Here, HEVC or H.264 H.265 is one of the video compression standards and is a subsequent format of H.264 / MPEG-4 AVC.

  The transmission video signal generation unit 104 generates a video signal according to the signal format transmitted by the signal transmission unit 105 by wireless communication or the like.

  The signal transmission unit 105 outputs the video signal generated by the transmission video signal generation unit 104 to an external device (electronic device (tablet PC) 2 or the like) by wireless communication or the like.

  The signal receiving unit 106 receives a signal transmitted from an external device (another electronic device (tablet PC) 2) by wireless communication or the like.

  The enlarged display position information acquisition unit 107 acquires a data signal of enlarged position information transmitted from an external device (another electronic device (tablet PC) 2) from the signals received by the signal reception unit 106.

  The enlarged display position locus information recording unit 108 records, for example, the locus information of the enlarged display designated position for each reproduction time position with respect to the enlarged position information acquired by the enlarged display position information acquisition unit 107.

  The enlarged display area determination processing unit 109 performs enlargement display designated position information acquired by the enlarged display position information acquisition unit 107 or enlarged display designation position information corresponding to the reproduction time position obtained from the enlarged display position locus information recording unit 108. The area to be enlarged is determined based on the above.

  The decoder 110 decodes the video data output from the video input unit 102.

  The enlarged video signal generation unit 111 generates a video signal that is partially enlarged based on the video signal decoded by the decoder 110 and information on the area to be enlarged and determined determined by the enlarged display area determination processing unit (109).

  The video signal display processing unit 112 receives the video signal generated by the enlarged video signal generation unit 111 and generates an input video signal to the display 113.

  The display 113 receives the video signal processed by the video signal display processing unit 112 and displays the video.

  Here, the second screen (another electronic device 2) is a tablet or a portable terminal, and receives and displays a video signal sent from the main screen (electronic device (TV, etc.) 1), and user operation. The designated position information of the enlarged display input by the input unit 206 is output toward the main screen (electronic device (TV or the like) 1).

  In addition, the signal receiving unit 202 of the other electronic device 2 receives a signal transmitted by wireless communication or the like from the electronic device (TV) 1 or the like, for example.

  The decoder 203 decodes the video signal transmitted from the device of the main screen (electronic device (television or the like) 1) received by the signal receiving unit 202.

  The video signal display processing unit 204 receives the video signal decoded by the decoder 203 and generates an input video signal to the display 205 (display screen 9).

  The display 205 (display screen 9) receives the video signal processed by the video signal display processing unit 204 and displays the video.

  The user operation input unit 206 is implemented by a touch sensor or a pointing device on the display 205 (display screen 9), and receives a user operation such as a touch operation.

  The enlarged display position information acquisition unit 207 acquires information on the position of the video (“mountain”) to be enlarged and displayed from the signal received from the user operation input unit 206.

  The transmission position information signal generation unit 208 receives the information on the position to be enlarged and acquired by the enlarged display position information acquisition unit 207, and generates a data signal in accordance with the signal format transmitted by wireless communication or the like by the signal transmission unit 209. To do.

  The signal sending unit 209 sends the position information data signal generated by the sending position information signal generating unit 208 to an external device such as the electronic device (TV) 1 by wireless communication or the like.

  FIG. 3 is a flowchart for explaining operations of the electronic device according to the embodiment and other electronic devices.

  Step S100 is a start step here. Then, it progresses to step S101.

Step S101 is a step of capturing an input video signal by the video input unit 102 of the electronic device (television) 1. Then, it progresses to step S102.

  Step S102 is a step of converting the captured input video signal into a video signal in a format that can be displayed on another electronic device (tablet PC) 2, for example, using the transcoder 103. Then, it progresses to step S103.

  In step S103, for example, the transmission video signal generation unit 104 transmits the transcoded video signal to another electronic device (tablet PC) 2 to generate a signal in a displayable format. Then, it progresses to step S104.

  Step S104 is a step of transmitting the generated video signal for transmission from the signal transmission unit 105 toward another electronic device (tablet PC) 2. Then, it progresses to step S201.

  Step S <b> 201 is a step in which the video signal output from the electronic device (television) 1 is received by the signal receiving unit 202 of another electronic device (tablet PC) 2. Then, it progresses to step S202.

Step S202 is a step in which the decoder 203 decodes the video signal received by the other electronic device (tablet PC) 2. Then, it progresses to step S203.

Step S203 is a step of performing processing for displaying the decoded video signal in the video signal display processing unit of another electronic device (tablet PC) 2. Then, it progresses to step S204.

Step S204 is a step of displaying the processed video signal for display on the display 205 (display screen 9) of another electronic device (tablet PC) 2. Then, it progresses to step S205.

  Step S205 is a step of capturing a signal corresponding to the user operation 32 in the user operation input unit 206 of the other electronic device (tablet PC) 2. Then, it progresses to step S206.

Step S206 is a step of acquiring the position information of the enlarged display designated by the user in the enlarged position information acquisition unit 207 of the other electronic device (tablet PC) 2 from the signal corresponding to the captured user operation. is there. Then, it progresses to step S207.

In step S207, the position information signal generation unit 208 for transmission of the other electronic device (tablet PC) 2 uses the enlarged display position information specified by the user in accordance with the format for transmission to the electronic device (TV) 1. Generating a position data signal. Then, it progresses to step S208.

Step S208 is a step of transmitting the generated transmission position information signal from the signal transmission unit 209 of the other electronic device (tablet PC) 2 to the electronic device (television) 1. Then, it progresses to step S301.

Step S <b> 301 is a step in which the electronic device (television) 1 receives the transmitted enlarged display position information by the signal receiving unit 106 of the electronic device (television) 1. Then, it progresses to step S302.

  Step S302 is a step in which the enlarged display position information acquisition unit 107 acquires information on the enlarged display designated position from the received signal. Then, it progresses to step S303.

  Step S303 is a step of recording trajectory information of the enlarged display designated position relative to the reproduction time position from the acquired enlarged display designated position information. Then, it progresses to step S304.

  In step S304, the information of the acquired enlarged display designated position is directly used, or the current reproduction time is used from the locus information of the enlarged display designated position recorded with respect to the reproduction time position in step S303. This is a step of determining an area to be enlarged and displayed in the original entire screen by the enlarged display area determination processing unit 109 using information on the enlarged display designated position corresponding to the position. Then, it progresses to step S305.

Step S305 is a step in which the decoder 110 decodes the input video signal captured in step S301. Then, it progresses to step S306.

  In step S306, an image (“mountain”) that is partially enlarged and displayed in the enlarged video signal generation unit 111 based on the information on the area to be enlarged and displayed in the determined entire screen and the video signal decoded in step S305. This is a step of generating a video signal. Then, it progresses to step S307.

  Step S307 is a step of receiving the generated partial enlarged display video signal and generating an input video signal to the display 113 (display screen 9) in the video signal display processing unit 112. Then, it progresses to step S308.

  Step S308 is a step of receiving the generated display input video signal and displaying and outputting a video (“mountain”) partially enlarged on the display 113 (display screen 9). Then, it progresses to step S310.

  Step S310 is an end step, and the process here ends.

  FIG. 4 is a flowchart for explaining the operation of the electronic apparatus according to the embodiment.

  Step S400 is a start step here. Then, it progresses to step S401.

  Step S401 is a step of displaying and outputting an image on the display (display screen) 8. Then, it progresses to step S402.

  In step S402, the video data of the video displayed and output on the display (display screen) 8 is transcoded so that it can be decoded and displayed on another electronic device (tablet PC) 2 set in advance. This is a step of outputting to the electronic device 2. Then, it progresses to step S403.

  Step S403 is a step of detecting whether or not a signal including position information for enlarged display of a video output from another electronic device 2 has been received.

When it is detected that the signal including the position information of the enlarged display of the video output from the other electronic device 2 is received, the process proceeds to step S404 (Yes). When it is not detected that the signal including the position information of the enlarged display of the video output from the other electronic device 2 is received, the process proceeds to step S401 and the above process is repeated (No).

  Step S <b> 404 is a step of acquiring position information of the enlarged display of the video output from the other electronic device 2 when the other electronic device 2 is operated by the user. Then, it progresses to step S405.

  Step S405 is a step of generating an enlarged display video signal using the acquired enlarged display position information. Then, it progresses to step S406.

  Step S406 is a step of displaying and outputting on the display 8 an enlarged display image including the enlarged display position operated by the user, using the generated enlarged display video signal. Then, it progresses to step S407.

  Step S407 is an end step, and the process here ends.

  That is, the electronic device 1 according to this embodiment transcodes and outputs the video data of the video displayed on the video display unit 8 so that the video data can be displayed on another preset electronic device 2. A part.

  In addition, the image processing apparatus includes an acquisition unit that acquires position information of the enlarged display of the video output from the other electronic device 2.

  In addition, a display unit is provided that uses the acquired position information of the enlarged display of the video to generate a video signal for enlarged display and display it on the video display unit 8.

  Further, the position information for the enlarged display of the video is information on the user operation 32 of the other electronic device 2.

  A detection unit configured to detect reception of a signal including position information of the enlarged image display;

  Further, when reception of a signal including position information of the enlarged display of the video is detected, the video signal for the enlarged display is generated.

  The user operation 32 includes a touch operation.

  By configuring as described above, in this embodiment, an electronic device having a relatively large image display unit and an electronic device (another electronic device) having a relatively small image display unit than this electronic device are wireless LANs or the like. When connected to the network, a part of the video displayed on another electronic device with a relatively small video display unit is enlarged so that the video can be viewed on an electronic device with a relatively large video display unit. It is possible to improve the performance.

  In addition, with the above-described configuration, when shooting a wide area around the part to be captured, such as shooting a fast-moving subject or a subject taken from a distance, the user can view the entire video before enlargement display. While viewing on the display screen of the electronic device (tablet PC) 2, it is possible to designate the position to be partially enlarged and display the partially enlarged video on the electronic device (TV) 1.

  Note that all the control processing procedures of the above-described embodiment can be executed by software. For this reason, it is possible to easily realize the same effect as that of the above-described embodiment only by installing and executing this program on a normal computer through a computer-readable storage medium storing the program for executing the control processing procedure. it can.

  Note that the above embodiment is not limited to the description itself, and in the implementation stage, the constituent elements can be variously modified and embodied without departing from the spirit of the invention.

  Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment.

  For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Electronic device (TV), 2 ... Electronic device (tablet PC), 8 ... Display screen (video display part), 9 ... Display screen (video display part), 32 ... User operation.

Claims (7)

An output unit that transcodes and outputs the video data of the video displayed on the video display unit so that it can be displayed on another preset electronic device;
An acquisition unit that acquires position information of an enlarged display of a video output from the other electronic device;
An electronic apparatus comprising a display unit that generates a video signal for enlarged display using the acquired position information of the enlarged display of the video, and displays the video signal on the video display unit.   The electronic device according to claim 1, wherein the position information of the enlarged display of the video is information that the other electronic device is operated by a user.   The electronic device according to claim 1, further comprising a detection unit configured to detect reception of a signal including position information of the enlarged display of the video.   The electronic apparatus according to claim 3, wherein the video signal for the enlarged display is generated when reception of a signal including position information for the enlarged display of the video is detected.   The electronic device according to claim 2, wherein the user operation includes a touch operation. Transcoding and outputting video data of the video displayed on the video display unit so that the video data can be displayed on another preset electronic device; and
Obtaining position information of an enlarged display of the video output from the other electronic device;
A method of controlling an electronic device, comprising the step of generating a video signal for enlarged display using the acquired position information of the enlarged display of the video and displaying the video signal on the video display unit. Transcoding and outputting video data of the video displayed on the video display unit so that the video data can be displayed on another preset electronic device; and
Obtaining position information of an enlarged display of the video output from the other electronic device;
An electronic device control program for controlling an electronic device, comprising the step of generating a video signal for enlarged display using the position information of the enlarged display of the acquired video and displaying the video signal on the video display unit.

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