KR20140013595A - Method for processing image signal, and apparatus for processing image signal - Google Patents

Method for processing image signal, and apparatus for processing image signal Download PDF

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Publication number
KR20140013595A
KR20140013595A KR1020120081317A KR20120081317A KR20140013595A KR 20140013595 A KR20140013595 A KR 20140013595A KR 1020120081317 A KR1020120081317 A KR 1020120081317A KR 20120081317 A KR20120081317 A KR 20120081317A KR 20140013595 A KR20140013595 A KR 20140013595A
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KR
South Korea
Prior art keywords
signal processing
image
still image
stream
video
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KR1020120081317A
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Korean (ko)
Inventor
양인창
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엘지전자 주식회사
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Publication of KR20140013595A publication Critical patent/KR20140013595A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/23614—Multiplexing of additional data and video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4347—Demultiplexing of several video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4348—Demultiplexing of additional data and video streams

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

The present invention relates to a video signal processing method and a video signal processing apparatus. An image signal processing method according to an embodiment of the present invention is a signal processing method of a composite image including a still image and an encoded video, the method comprising: encoding a still image by a first encoding method, encoding a still image, and encoding Multiplexing the multiplexed video, and transmitting the multiplexed stream to the outside. This makes it possible to improve the usability of the user.

Description

Image signal processing method and apparatus for processing image signal

The present invention relates to a video signal processing method and a video signal processing device, and more particularly, to a video signal processing method and an image signal processing device that can improve user convenience.

The video signal processing device is a device capable of processing video signals. That is, the signal processing of the input video signal may be performed to output the signal processed video signal to the outside or through the internal display.

As the network environment becomes complicated, the demand for a video signal processing device suitable for the network environment is increasing.

SUMMARY OF THE INVENTION An object of the present invention is to provide a video signal processing method and a video signal processing apparatus capable of improving user convenience.

An image signal processing method according to an embodiment of the present invention for achieving the above object is a signal processing method of a composite image including a still image and an encoded video, the method comprising: encoding a still image by a first encoding method; And multiplexing the still image and the encoded video, and transmitting the multiplexed stream to the outside.

In addition, the image signal processing method according to an embodiment of the present invention for achieving the above object is a signal processing method of a composite image including a still image and the encoded video, receiving a multiplexed stream input from the outside; Demultiplexing the stream into a still image and a moving image, decoding the still image using a first decoding method, decoding a moving image using a second decoding method, and decoding the decoded still image and a moving image. And displaying the composite image on the display.

In addition, an image signal processing apparatus according to an embodiment of the present invention for achieving the above object is an image signal processing apparatus for signal processing a composite image including a still image and an encoded video, the still image in a first encoding scheme An encoder for encoding, an encoded still picture, an encoded video multiplexer, and a network interface for transmitting the multiplexed stream to the outside are included.

In addition, an image signal processing apparatus according to an embodiment of the present invention for achieving the above object is an image signal processing apparatus for signal processing a composite image including a still image and an encoded video, the multiplexed stream input from the outside A network interface unit for receiving, a demultiplexer for demultiplexing a stream into a still image and a video, a first decoder for decoding a still image with a first decoding method, and a second decoding method for decoding a video. And a display for displaying the composite image including the decoded still image and the moving image.

According to an exemplary embodiment of the present invention, in order to transmit image data between devices, pre-coded video data having a large amount of data is used as it is without further compression, and still image data having a small amount of data is encoded to encode a pre-coded video. The data and the encoded still image data are multiplexed and transmitted. As a result, it is not necessary to separately compress moving image data having a large amount of data, and still image data having a small amount of data can be encoded, thereby improving the transmission speed in transferring image data between devices.

On the other hand, when video data is exchanged between a plurality of video signal processing apparatuses, the user can watch the video data desired by the user by setting the priority or rejection setting.

1 is a diagram illustrating an image signal processing system according to an exemplary embodiment of the present invention.
2 is a flowchart illustrating a method of operating an image signal processing apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a method of operating an image signal processing apparatus according to another embodiment of the present invention.
4 to 8B are views referred to for describing the operation of the image signal processing apparatus of FIG. 2 or 3.
9 is a block diagram illustrating an image signal processing apparatus according to another embodiment of the present invention.
10 is an internal block diagram of an image signal processing apparatus according to another embodiment of the present invention.
11A to 12C are views referred to for describing the operation of the image signal processing apparatus of FIG. 9 or FIG. 10.

Hereinafter, the present invention will be described in detail with reference to the drawings.

The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

1 is a diagram illustrating an image signal processing system according to an exemplary embodiment of the present invention.

Referring to FIG. 1, a video signal processing system according to an embodiment of the present invention includes a plurality of video signal processing apparatuses 100a, 100b, 100c, and 100d capable of exchanging video data with each other via a network 50. ) May be included.

In the drawing, three of the plurality of video signal processing apparatuses 100a, 100b, 100c, and 100d are 100a, 100c, and 100d of the transmitting side video signal processing apparatus, and one video signal processing apparatus 100b. Illustrates that is a receiving image signal processing apparatus.

The transmitting video signal processing apparatuses 100a, 100c, and 100d may transmit the generated streams streams 1,2 and 3 to the receiving video signal processing apparatus 100b through the network 50, respectively.

The reception side video signal processing apparatus 100b may receive the respective streams streams 1,2 and 3 through the network 50.

Meanwhile, when exchanging video data between adjacent devices, peripheral devices (VTR, DVD Player, Settop box, PC, Notebook, Phone, Smart Pad) and the like may be limitedly connected according to the number of input ports. On the other hand, the desire for a common compatibility of the H / W interface, a display that can connect multiple terminals to one port is increasing.

On the other hand, the method of exchanging image data wirelessly between adjacent devices is emerging, but considering that the image data of high definition such as HD, Full HD, Ultra HD, Super Ultra HD increases gradually, There is some crowds with wireless, uncompressed transmission.

On the other hand, compressing and transmitting a large amount of video data may also be difficult due to a compression time, etc., in real time between devices.

Therefore, in the exemplary embodiment of the present invention, when the video data is transmitted between devices, the pre-coded (compressed) video data having a large amount of data is used without additional compression, and the still image data having a small amount of data is encoded (compressed). In this case, the encoded (compressed) video data and the encoded (compressed) still picture data are multiplexed and transmitted.

As a result, it is not necessary to separately compress moving image data having a large amount of data, and in addition, by encoding still image data having a small amount of data, it is possible to improve the transmission speed during data transfer between devices.

For example, in the notebook 100a of the transmitting image signal processing apparatuses (camera, notebook, optical disc player) of FIG. 1, when transmitting a composite image including a still image and an encoded video, the still image is encoded and encoded. The multiplexed still image and video may be multiplexed, and the multiplexed stream stream2 may be transmitted to the outside. Accordingly, the receiving side video signal processing apparatus 100b can easily receive the corresponding stream without time delay through the network 50.

As another example, the notebook computer 100a of the transmitting image signal processing apparatus of FIG. 1 receives still image data photographed by the camera 100c, receives video data from the optical disc player 100d, and receives a still image. By encoding, multiplexing the encoded still image and video, the multiplexed stream stream2 may be transmitted to the outside.

Alternatively, as another example, the network 50 may receive still image data captured by the camera 100c, receive still image data for a slide show in the notebook 100a, and may output moving image data from the optical disc player 100d. It is also possible to receive, encode respective still images from the camera 100c and the notebook 100a, multiplex the encoded still images and video, and transmit the multiplexed stream to the outside.

Meanwhile, image data from the plurality of image signal processing apparatuses 100a, 100c, and 100d may be synthesized as desired by a user. In this case, the still image data may be encoded, the encoded still image data, and the previously encoded video. It is also possible to transmit data multiplexed.

On the other hand, the image signal processing apparatus according to an embodiment of the present invention, a TV, a laptop, a mobile terminal (mobile phone, smartphone, tablet, etc.), a game device, a camera, a set-top box, an optical disk player, a concept including a projector, etc. Can be.

Hereinafter, an operation method of the transmission side video signal processing apparatus will be described with reference to FIG. 2, and an operation method of the reception side video signal processing apparatus will be described with reference to FIG. 3.

2 is a flowchart illustrating a method of operating an image signal processing apparatus according to an embodiment of the present invention, and FIG. 3 is a flowchart illustrating a method of operating an image signal processing apparatus according to another embodiment of the present invention. 8B is a diagram referred to for describing operation of the video signal processing apparatus of FIG. 2 or 3.

The operating method of the video signal processing apparatus of FIG. 2 corresponds to the operating method of the transmitting video signal processing apparatus 100a of FIG. 5, and the operating method of the video signal processing apparatus of FIG. 3 is the receiving video signal of FIG. 5. It may correspond to an operating method of the processing apparatus 100b.

First, referring to FIG. 2, the transmitting image signal processing apparatus 100a encodes a still image using a first encoding method (S210). Meanwhile, step 210 of operation S210 corresponds to step 410 of operation 410 of FIG. 4.

The transmitting video signal processor 100a may signal process a composite video including the compressed video data and the screen image. For example, the signal may be processed to be transmitted to the outside through the network interface unit 630 or the signal may be processed to be displayed on the display 680 provided.

In this case, the composite image may mean a composite image including the compressed image data 601 and the screen image 602 in one frame.

In order to process the signal to transmit the composite image to the outside, the transmitting image signal processing apparatus 100a may include an encoder 615, a multiplexer 625, and a network interface unit 630 as shown in FIG. 6. have.

On the other hand, in order to display on the display 680 provided, the transmitting image signal processing apparatus 100a may include a decoder 610, a video processing unit 620, and a display 680, as shown in FIG. 6. .

First, in order to process a signal to transmit the composite video to the outside, the encoder 615 may encode the screen image by the first encoding scheme. For example, it can be encoded by a JPEG encoding method. The screen image at this time may be a still image data as a background image of the compressed image data.

Meanwhile, the encoded video data may be encoded video data, and may be, for example, video data encoded according to an encoding scheme such as H.264, MPEG-4, or the like.

Next, the transmitting-side video signal processing apparatus 100a multiplexes the encoded still image and the encoded video (S215). On the other hand, step 215 (S215) corresponds to step 415 (S415) of FIG.

The multiplexer 625 of the transmitting image signal processing apparatus 100a may multiplex the encoded still image and the encoded video. In one stream packet, encoded still picture data and encoded video data may be included.

Next, the transmitter-side video signal processing apparatus 100a transmits the multiplexed stream to the outside (S220). Correspondingly, the receiving side video signal processing apparatus 100b receives the multiplexed stream (S320). Meanwhile, step 220 and step S320 correspond to step 420 of FIG. 4.

The network interface unit 630 of the transmitting side video signal processing apparatus 100a transmits the multiplexed streams to the network 50. As a result, the receiving side video signal processing apparatus 100b transmits the network 50. Through the network interface unit 640, a multiplexed stream may be received.

Meanwhile, in order to process the received composite video signal, the reception side video signal processing apparatus 100b, as illustrated in FIG. 6, has a network interface unit 640, a demultiplexer 645, a first decoder 647, and a first decoder. 2 decoder 649, a video processor 650, and a display 685.

Next, the receiving video signal processing apparatus 100b demultiplexes the received stream into a still picture and a moving picture (S325). On the other hand, step 325 (S325) corresponds to step 425 (S425) of FIG.

The demultiplexer 645 of the reception side video signal processing apparatus 100b demultiplexes the received stream and divides the received stream into still picture data and moving picture data.

Next, the receiving image signal processing apparatus 100b decodes the still image by the first decoding method (S330). Then, the video is decoded by the second decoding method (S335). Meanwhile, step 330 (S330) corresponds to step 430 (S430) of FIG. 4, and step 335 (S335) corresponds to step 435 (S435) of FIG. 4.

The first decoder 647 of the reception side video signal processing apparatus 100b decodes the still image data, and the second decoder 649 decodes the video data.

Next, the receiving image signal processing apparatus 100b displays the composite image including the decoded still image and the moving image on the display (S340). On the other hand, step 340 (S340) corresponds to step 440 (S440) of FIG.

The video processor 650 of the receiving image signal processing apparatus 100b generates a composite image by combining the decoded still image and the moving image, and the display 180 displays the generated composite image.

As described above, in order to transfer the image data between devices, the pre-coded (compressed) moving image data having a large amount of data is used as it is without further compression, and the still image data having a small amount of data is encoded (compressed) and then pre-coded (compressed) By multiplexing the transmitted moving image data and the encoded (compressed) still image data, it is not necessary to separately compress the moving image data having a large amount of data, and by encoding still image data having a small amount of data, inter-device data The transmission speed at the time of transmission can be improved.

On the other hand, in the transmission video signal processing apparatus 100a of FIG. 6, the decoder 610 decodes the encoded video data 601 and the video processor 620 decodes the composite video for displaying the composite video. Video data 601 and the screen image 602 are synthesized. The composite image including the synthesized moving image data 601 and the screen image 602 is displayed on the display 180.

7 to 8B are views referred to for describing the operation of the image signal processing apparatus of FIG. 6.

First, referring to FIG. 7, the S image 730 is a composite image, the A image 720 is a still image, and the B image 715 illustrates a video.

The transmitting video signal processing apparatus 100a may receive the compressed video 710 instead of the video 715 from the outside, and may generate the still image 720 as a graphic image by itself.

Then, the transmission side video signal processing apparatus 100a compresses the still image 720 for external transmission of the composite image. The compressed still image 725, the precompressed video 710, and the precompressed audio 711 are multiplexed as one stream.

That is, the stream 810 as shown in FIG. 8A is transmitted to the outside. The stream 810 includes a plurality of packets, each packet 815 comprising compressed still picture data 725, precompressed video data 710, and precompressed audio data 711. Can be.

8B illustrates a stream 860 for comparison with an embodiment of the present invention. That is, the stream 860 of FIG. 8B differs from the stream 810 of FIG. 8A in that the composite video itself includes an encoded composite video 735 and compressed audio data 711.

That is, since the stream of FIG. 8B is a conventional stream and decodes the compressed video 710 and then decodes the decoded video and the still image again, a significant time delay occurs during transmission between other devices. Done.

As a result, when externally transmitting a composite video including a pre-coded moving picture and a still picture as described herein, encoding a still picture, multiplexing each coded moving picture and a still picture, and transmitting the data as a stream shortens the transmission time. And so on.

9 is a block diagram illustrating an image signal processing apparatus according to another embodiment of the present invention.

9 shows another example of the transmitting-side video signal processing apparatus 900. Compared with the transmission side video signal processing apparatus 100a of FIG. 6, the encoder 915, the multiplexing unit 925, the network interface unit 930, the decoder 910, and the graphic processing unit 920 of FIG. Each corresponds to the encoder 615, the multiplexer 625, the network interface 630, the decoder 610, and the video processor 620 of FIG. 6.

Meanwhile, the transmitting side video signal processing apparatus 900 of FIG. 9 includes a storage unit 907, 909, an input device interface unit 912, a control unit 905, and a video output interface unit 914 under a bus 903 structure. There is a difference in providing it separately.

The storage units 907 and 909 may store a program for signal processing and control of the image signal processing apparatus, and may store a signal processed image, audio, or data signal.

The input device interface unit 912 may receive data through an external input device. For example, encoded video data may be received.

The control unit (MCU) 905 may control various operations for transmitting the composite image data to the outside. In addition, operations for displaying the composite image may be controlled through the display. In addition, various operations of the image signal processing apparatus may be controlled.

The video output interface unit 914 may output video data to a connected display. In particular, the decoded composite image may be output.

On the other hand, the network interface unit 930, on the receiving side, may transmit the highest priority setting information to the multiplexed stream so as to be reproducible.

10 is an internal block diagram of an image signal processing apparatus according to another embodiment of the present invention.

10 shows another example of the reception side video signal processing apparatus. Compared with the receiving image signal processing apparatus 100b of FIG. 6, the network interface unit 1040, the demultiplexer 1090, the decoders 1047, 1048, 1049, the graphics processor 1070, and FIG. The display 1080 corresponds to the network interface unit 640, the demultiplexer 645, the decoders 647 and 649, the video processor 650, and the display 685 of FIG. 6, respectively.

On the other hand, the transmitting-side video signal processing apparatus 1000 of FIG. 10 includes a storage unit 1057 and 1009, an input device interface unit 1012, a control unit 1005, a video output interface unit 1062, and a panel under a bus structure. The difference is that the interface unit 1063 and the stream selection unit 1085 are separately provided.

The stream selector 1085 selects any one stream when a plurality of streams are received from the outside. In particular, when a plurality of streams are received from a plurality of external video signal processing apparatuses, and the priority is set, control is performed to receive the streams according to the priority. Accordingly, the network interface unit 1040 receives the streams according to the ranks assigned to the streams.

On the other hand, the stream selection unit 1085 controls to receive the stream most recently assigned the highest priority when the priority assigned to each stream is the highest priority. Accordingly, the network interface unit 1040 receives the stream most recently assigned the highest priority.

The storage units 1057 and 1009 may store programs for signal processing and control of the image signal processing apparatus, and may store signal processed video, audio, or data signals.

The input device interface unit 1012 may receive data through an external input device.

The control unit (MCU) 1005 may control operations for displaying a stream received from the outside. In addition, various operations of the image signal processing apparatus may be controlled.

The video output interface unit 1062 may output video data to an external device to be connected. In particular, the decoded composite image may be output.

The panel interface unit 1063 may output video data to the display 1080. In particular, the decoded composite image may be output.

On the other hand, the transmission video signal processing apparatus can be assigned a priority, which will be described with reference to Figs. 11A to 12C.

11A to 12C are views referred to for describing the operation of the image signal processing apparatus of FIG. 9 or FIG. 10.

11A illustrates a notebook as the transmitting image signal processing apparatuses 1100a, 1100b, and 1100c, and illustrates a TV as the receiving image signal processing apparatus 1110.

As shown in FIG. 11A, when streams 1,2 and 3 are output in the transmission video signal processing apparatuses 1100a, 1100b, and 1100c, respectively, the streams 1, 2 and 3 are each connected to the network 50. ) Is received by the receiving image signal processing apparatus 1100.

The reception side video signal processing apparatus 1100 can simultaneously play all streams, but receives the selected stream by user selection while displaying the object 1120 to select one as shown in FIG. 11B, I can display it.

Alternatively, as illustrated in FIG. 11C, the reception side video signal processing apparatus 1100 may sequentially receive streams according to a priority set among all the received streams streams 1,2 and 3. FIG. 11C illustrates that an object 1130 indicating that the first stream (stream 1) has the highest priority among the plurality of streams (streams 1,2 and 3) is displayed.

On the other hand, as shown in FIG. 11D, when all received streams (streams 1,2 and 3) have the same priority, the reception side video signal processing apparatus 1100 may receive the latest set stream. FIG. 11D illustrates that an object 1140 indicating that the first stream (stream 1) of the plurality of streams (streams 1,2 and 3) is the latest set stream is displayed.

12A illustrates a notebook as the transmitting image signal processing apparatuses 1200a, 1200b and 1200c, and illustrates a TV as the receiving image signal processing apparatuses 1210a and 1210b.

As shown in FIG. 12A, when the streams 1,2,3 are output in the transmitting video signal processing apparatuses 1200a, 1200b, and 1200c, respectively, the streams 1, 2, and 3 are respectively connected to the network 50. ) May be received by the receiving side image signal processing devices 1210 and 1215, respectively.

The receiving video signal processing apparatuses 1210 and 1215 can simultaneously play all streams, but as shown in Fig. 12B, the streams selected by the user selection while displaying the objects 1220 and 1225 to select either Can be received and displayed.

Alternatively, as shown in FIG. 12C, when the rejected stream is set among all the received streams (streams 1,2 and 3), the first receiving side video signal processing apparatus 1210 may receive the stream except the corresponding stream. Do. The first receiving side image signal processing apparatus 1210 may display an object 1230 indicating to receive the remaining stream except for the rejected stream.

On the other hand, the second receiving side video signal processing device 1215 of FIG. 12C can sequentially receive the streams according to the set priority. FIG. 12C illustrates that an object 1235 indicating that the first stream (stream 1) has the highest priority among the plurality of streams (streams 1,2 and 3) is displayed. Thus, the usability of the user can be increased.

As described with reference to FIGS. 11A to 12C, when video data is exchanged between a plurality of video signal processing apparatuses, the user can view the video data desired by the user by setting the priority or rejection setting.

The image signal processing method and the image signal processing apparatus according to the present invention are not limited to the configuration and method of the embodiments described as described above, but the embodiments may be modified in various ways so that various modifications may be made. Or some may be selectively combined.

On the other hand, the operating method of the image signal processing apparatus of the present invention can be embodied as a processor-readable code on a processor-readable recording medium provided in the image signal processing apparatus. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium that can be read by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet . In addition, the processor-readable recording medium may be distributed over network-connected computer systems so that code readable by the processor in a distributed fashion can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

Claims (18)

In the signal processing method of a composite image including a still image and an encoded video,
Encoding the still image by a first encoding method;
Multiplexing the encoded still image and the encoded video; And
And transmitting the multiplexed stream to the outside. The method of claim 1,
Generating the still image; image signal processing method further comprising. The method of claim 1,
The encoded video signal is received from the outside. The method of claim 1,
Decoding the encoded video;
Synthesizing the decoded video and the still image;
And displaying the synthesized image on a display. The method of claim 1,
And adding highest priority setting information to the multiplexed stream. In the signal processing method of a composite image including a still image and an encoded video,
Receiving a multiplexed stream input from the outside;
Demultiplexing the stream into a still image and a moving image;
Decoding the still image by a first decoding method;
Decoding the video by a second decoding method; And
And displaying a composite image including the decoded still image and a moving image on a display. The method according to claim 6,
And selecting one of the streams when the plurality of streams are received from the outside. The method according to claim 6,
And receiving a corresponding stream according to a rank assigned to each stream when a plurality of streams are received from the outside. The method according to claim 6,
And receiving a plurality of streams received from the outside, and receiving the most recently assigned stream when the priority assigned to each stream is the highest priority. . An image signal processing apparatus for signal processing a composite image including a still image and an encoded video,
An encoder for encoding the still image by a first encoding scheme;
A multiplexer for the encoded still image and the encoded video; And
And a network interface unit for transmitting the multiplexed stream to the outside. 11. The method of claim 10,
A decoder for decoding the encoded video; And
And a display configured to display the decoded video and the still image together. 12. The method of claim 11,
And a video processor for synthesizing the decoded video and the still image. 11. The method of claim 10,
The network interface unit,
And transmitting the highest priority setting information to the multiplexed stream. An image signal processing apparatus for signal processing a composite image including a still image and an encoded video,
A network interface unit for receiving a multiplexed stream input from the outside;
A demultiplexer which demultiplexes the stream into a still image and a moving image;
A first decoder to decode the still image by a first decoding method;
A second decoder which decodes the video by a second decoding method; And
And a display configured to display a composite image including the decoded still image and a moving image. 15. The method of claim 14,
And a stream selector which selects any one stream when the plurality of streams are received from the outside. 15. The method of claim 14,
And a graphic processor for synthesizing the decoded still image and the moving image. 15. The method of claim 14,
The network interface unit,
And a plurality of streams received from the outside, according to a rank assigned to each stream, the corresponding streams are received. 15. The method of claim 14,
The network interface unit,
And a plurality of streams received from the outside, and receiving the most recently assigned stream when the priority assigned to each stream is the highest priority.
KR1020120081317A 2012-07-25 2012-07-25 Method for processing image signal, and apparatus for processing image signal KR20140013595A (en)

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