KR19990032719A - Split Screen Comparator - Google Patents

Abstract

The present invention stores the poses of different glasses or clothes in the image memory, such as at the optician or clothing store in the image memory to display the desired screen full screen or split screen as necessary to display different poses through one screen. A split screen comparator and a method for controlling the split screen. The split screen comparator for displaying a screen shot through a conventional camera on a display device, wherein the split signal is temporarily stored in a buffer and stored in the buffer. A video signal converting means for applying the stored data to the display device for displaying the data, and for storing a plurality of frame data by dividing one frame of screen temporarily stored in the buffer by area. Is a remote control for receiving a signal transmitted from a remote control and a key component including an image storage means, a logic means for outputting a buffer of the image signal conversion means and a control signal for controlling data input / output of the image storage means, and a plurality of keys. And a microcomputer applying information on the mode by the key signal input from the operation means such as the receiver to the control means.

Description

Split Screen Comparator

The present invention relates to a split-screen comparison apparatus and a control method thereof, and more particularly, to store a pose of glasses or clothes worn by different buyers in an image memory in a place such as an optician or a clothing store. The present invention relates to a split screen comparator and a method of controlling the same, by allowing full screen or split screen display to compare different poses through a single screen.

In general, at a place such as a clothing store or an optician, when a buyer selects a purchase such as clothes or glasses, the purchaser wears or wears various kinds of clothes and selects a favorite, and the wearing or wearing state is confirmed through a mirror.

When buyers don't like clothes or glasses they wear, or they want to wear or wear something else, they remember the current state of wear or state of wear and then wear or wear something else and compare it with what they have previously worn or worn.

However, the choice of these items was dependent on the buyer's memory and the buyer could not visually compare the old to the present.

Therefore, the purchaser was often confused by the purchase because it was difficult to compare two states in which various kinds of clothes or glasses were actually worn or worn at the same time.

Therefore, there is a desire for a device that can compare the state of wearing or wearing different types of clothing or glasses at the time of purchase.

An object of the present invention is a split screen comparison device and a control method that allows the buyer to store one or more poses worn or worn, such as clothing or eyeglasses, as separate screens and to display different poses on a split screen for comparison. To provide.

1 is a block diagram showing a preferred embodiment of a split screen comparison apparatus according to the present invention.

Fig. 2 is a block diagram showing a buffer and image memory data area setting state for a full screen display according to an embodiment of the present invention.

Fig. 3 is a block diagram showing a buffer and image memory data area setting state for a quad screen display of the embodiment according to the present invention.

4A is a diagram showing pixels of a screen displayed in the display apparatus of the embodiment.

4B is a diagram illustrating a state in which data corresponding to an odd field for a quad screen display of an embodiment is stored in a buffer.

4C is a diagram illustrating a state in which data corresponding to an even field for a quad screen display of an embodiment is stored in a buffer.

Fig. 5 is a block diagram showing a buffer and image memory data area setting state for a bi-division screen display of an embodiment according to the present invention.

6 is a view showing a dividing screen according to an embodiment according to the present invention.

7 is a view for explaining a caption processing state according to an embodiment of the present invention.

8A-8C are flowcharts for driving an embodiment according to the present invention.

※ Explanation of symbols for main parts of drawing

10: camera 12: image processing unit

14: display device 20: A / D converter

22: buffer 24: image memory

26: D / A converter 28: logic section

30: subtitle memory 32: microcomputer

34: key configuration 36: remote control receiver

38: remote control

A split screen comparison device according to the present invention for achieving the above object is a split screen comparison device for displaying a screen taken by a conventional camera on a display device, wherein the captured signal is temporarily stored in a buffer and stored in the buffer. Image signal converting means for applying the stored data to the display device to display, the image storage means for storing a plurality of frame data by dividing the frame of the screen temporarily stored in the buffer for each area, the image signal conversion means Logic means for outputting a control signal for controlling data input and output of the buffer and the image storage means, and operation means such as a key configuration unit including a plurality of keys and a remote control receiver for receiving a signal transmitted from the remote control. And from the information on the mode using the key signal input, characterized in that a micro computer that is applied to the control means.

Further, a caption memory for providing caption information to the logic unit is further configured so that the logic means provides a control signal including a bitmap signal for forming the caption to the video signal converting means to display the caption on the display apparatus. It is preferred to be configured to.

The logic means may be configured to control a full screen display by providing a control signal for selecting a specific frame among a plurality of frame data stored in the image storing means, storing the selected frame in a buffer, and displaying the same on the display apparatus.

The logic means may alternately read the column information of the odd and even fields of the plurality of frame data stored in the image storage means, and sample the amount of data for 1/4 and store them in the divided storage areas of the buffer, respectively. And display the display device on the display device.

The logic unit reads two frame information selected from the plurality of frame data stored in the image storage means in half of data including a central portion in a storage area and stores the data in the buffer. It can be configured to control the dividing display by displaying at.

DETAILED DESCRIPTION Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the configuration and operation of the embodiments, the present embodiment will be described by taking an example where it is utilized at an optician.

Referring to FIG. 1, according to an embodiment of the split screen comparison apparatus according to the present invention, an image signal is input from the camera 10 to the image processing unit 12, and the image processing unit 12 receives a still or moving image of a divided or full screen. It is configured to output a signal for to the display device (14).

That is, the image processor 12 divides the poses wearing glasses inputted from the camera 10 into first to fourth screens, and stores the poses in an image memory such as a conventional D-RAM, and displays a screen for each pose. Or it outputs a full screen or a split screen as a still image, and if necessary, it is configured to synthesize the subtitles stored in the subtitle memory to output to the display device (14).

A detailed configuration of the image processor 12 described above will be described.

An analog / digital converter (hereinafter referred to as an 'A / D converter') 20 is configured to receive a specific pose of wearing glasses taken from the camera 10 as an image signal. The converter 20 is connected to convert an image signal in the form of an analog signal into a digital signal form by a control signal applied from the logic unit 28 and input the same into the buffer 22. Here, the buffer 22 is composed of a normal video RAM having a data storage capacity of one frame composed of one odd field and even field.

The buffer 22 and the image memory 24 are connected to each other by a data bus to transfer data to each other for read / write in both directions, and the logic unit 28 read / writes the buffer 22 and the image memory 24, respectively. A control signal and address information for writing are applied. In the image memory 24, video signals for a plurality of poses for division must be read / write for each screen area, so that the logic unit selects data for a specific screen to be read / written in the image memory 24. Reference numeral 28 is connected to apply a screen selection control signal to the image memory 22.

The logic unit 28 is configured to output a control signal so that an image signal stored in the buffer 22 is output to the D / A converter 26, and the D / A converter 26 is a control signal of the logic unit 28. By converting the video signal in the form of a digital signal into a video signal in the form of an analog signal to output to the display device (14). At this time, the logic unit 28 loads a bitmap control signal to the D / A converter 26 by loading a bit map control signal to the control signal if necessary in the state of being interfaced with the subtitle memory 30 storing the subtitle data. It is configured to be displayed on the display device (14).

The logic unit 28 then converts the A / D converter 20, the buffer 22, the image memory 24, and the D / A converter according to a predetermined data processing algorithm according to an operation command input from the microcomputer 32. And a control signal output to the subtitle memory 30, the microcomputer 32 includes a key including key 1 to key 6 (not shown) as an operation key. It is configured to output an operation command corresponding to each key signal input from the key configuration section 34 and the remote control receiving section 36 having a. In addition, the remote control receiver 36 is configured to decode the signal transmitted from the conventional remote controller 38 including the keys included in the above-described key construction unit 34.

Among the above-mentioned keys, 'key 1' to 'key 4' are for converting a full screen state and a quad screen state, and are keys for storing and outputting a video signal for quadrant, respectively. It is a key for switching between the full screen state and the dividing screen state, and the key "6" is a reset key.

On the other hand, the buffer 22 and the image memory 24 are read / write separately according to modes such as a full screen display, a quad screen display, or a dividing screen display, and the buffer 28 is separated from the logic unit 28. The setting of the storage area is divided by the above-described modes by the applied address signal, the control signal and the screen selection signal, and the information stored in the image memory 24 is converted into the address signal and the screen selection signal applied from the logic unit 28. The data to be written to and transferred to the buffer 22 is different.

That is, in the full screen display mode, the buffer 22 stores one screen of data for full screen display, that is, one frame data composed of odd field and even field data, as shown in FIG. The image memory 24 divides and stores full screen data for each screen to be divided and displayed by frame, and each frame stores data by dividing the corresponding odd and even field regions.

The information about a specific screen photographed by the camera 10 and inputted into the buffer 22 through the A / D converter 20 by selecting a particular pair of glasses is sequentially selected from the first to the first. One of four screens (hereinafter referred to as A screen to D screen) is designated, and the screen information of the buffer 22 is directed to a specific frame area corresponding to the designated screen of the image memory 24 under the control of the logic unit 28. Stored.

For the full screen display, a specific screen storage area is selected among the areas of the plurality of screens stored in the image memory 24 under the control of the logic unit 28, and the frame data of the screen storage area is buffered as it is. The screen, which is transmitted to and written to the screen, is stored in the buffer 22 and displayed on the display device 14 via the D / A converter 26.

In the case of a mode in which a plurality of screens for wearing different glasses stored in the image memory 24 are to be divided and displayed on the display device 14, the buffer 22 is stored in the image memory 24. Information about screens A to D is sampled in quarters for each frame and stored in the divided region as shown in FIG. That is, the buffer 22 which stores one frame of data divided into an even field and an odd field is divided into an even field area and an odd field area, each of which is divided into an even field area and an odd field area. The data of the even field area and the odd field area of each frame of the image memory 24 are sampled and stored in a quarter amount.

As a result, each frame data for forming A screens to D screens respectively stored in the image memory 24 in the same manner as in FIGS. 4A to 4C is sampled and stored in the buffer 22.

Specifically, the sampling method for the quadrant mode will be described with reference to FIGS. 4A to 4C.

FIG. 4A illustrates a screen in which a frame-specific screen is displayed on a full screen in the display device 14, and pixels may be illustrated as shown in FIG. 4A.

Here, when displayed in full screen, as shown in Fig. 4A, one frame includes odd-field pixel rows (0, 1, 2, 3 ..., 20, 21, 22, 23 ..., 40, 41, 42) by even field data. , 43... And odd field pixel rows 11, 12, 13..., 31, 32, 33..., By the even field data are alternately formed. The data for the even field pixel rows for the full screen is stored in the even field area of the image memory 24, and the data for the odd field pixel rows are stored in the odd field area of the image memory 24.

For the fourth division, the logic unit 28 reads data excluding data for each even row and column among the data stored in the odd field area and the even field area of the image memory 24, and the read data as described above The data is transferred from the image memory 24 to the buffer 22 via the data bus and written to the divided corresponding areas of the even field and the odd field area of the buffer 22 as shown in Figs. 4B and 4C.

As described above, only one quarter of data is sampled from the image memory 24, and thus, the sampling data of each frame for quartering is stored in each divided area of the buffer as shown in FIG. It is stored as frame data for one split screen.

The buffer 22 reads the data stored for the split screen under the control of the logic unit 28 and transmits the data to the D / A converter 26. The D / A converter 26 converts the digital signal into an analog signal. Transfer to the display device (14). Then, the display device 14 is divided into A screens and D screens for poses wearing different glasses stored in the image memory 24 and displayed as one screen.

On the other hand, in a mode in which two screens among the A screens and the D screens stored in the image memory 24 are to be divided and displayed on the display device 14, the buffer 22 has an even field and an odd number as shown in FIG. The data storage area for the field is divided into areas for two screens to be displayed respectively, and data corresponding to the two selected screens among the screens stored in the image memory 24 are sampled in the buffer 22, and the respective divided areas described above. Is lighted on.

In the image memory 24, as shown in Figs. 2 and 3, data for screens A to D are stored in an area allocated in units of frames, and data of frame areas for two screens are control signals and screens. It is selected by the selection signal and transmitted to the buffer 22.

When the data of the image memory 24 is transferred to the buffer 22, the address is specified so that odd field data and even field data of the half portion of the center portion with respect to the original screen are selected and output. In detail, when the image memory 24 has a number of '720' horizontally, data included in columns '180' to '540' is transferred to the buffer 22 and stored in the designated location. As a result, since the amount of data selected from one frame data stored in the image memory 24 and transmitted to the buffer 22 is 1/2, the buffer 22 stores the data for dividing and displaying two screens in the respective divided areas. do.

Therefore, when data stored in the buffer 22 is outputted to the display device 14 through the D / A converter 26, a divided screen is displayed as shown in FIG.

Meanwhile, a method of inserting subtitles when necessary, whether full screen display or split screen display, will be described with reference to FIG.

The subtitle data is stored in the subtitle memory 30, and the logic unit 28 writes the data of the subtitle memory 30 if necessary in accordance with a signal input from the microcomputer 32 to convert the D / A converter 26. To send).

The D / A converter 26 inserts a bit map signal into the analog signal while converting data transmitted from the buffer 22 into an analog signal for display.

When the bitmap signal is displayed as a dividing screen as shown in FIG. 7, the bitmap signal corresponds to the 'X' th horizontal period signal to form a subtitle on the 'X' th scanning line. 0001100111000001100... By applying the logic unit 28 to the D / A converter 26 in the same manner as described above, the video signal is removed and a subtitle is formed at a place corresponding to '1' of the bitmap signal. The removal of the video signal is possible by recognizing the bitmap signal as a normal gate pulse.

Accordingly, the logic unit 28 applies the bitmap signal to the D / A converter 26 by synthesizing the bitmap signal with the video signal outputted by the data provided from the subtitle memory 30 in each horizontal period signal. In Fig. 7, a specific character (for example, 'screen') is formed.

As described above, a method of driving a full screen, a quad screen, and a bi-screen display by using a data storage technique between the buffer 22 and the image memory 24 will be described with reference to Figs. 8A to 8C.

First, when the operation is started, the present embodiment checks the video signal input to the A / D converter 20 in step S2. If it is determined in step S4 that the input image is an NTSC signal, then step S6 is performed to set the driving mode of the logic unit 28 to NTSC. If it is determined in step S4 that the input image is a PAL signal, the step S8 is performed. The drive mode of (28) is set to PAL.

The logic unit 28 passes through the A / D converter 20, the buffer 22, and the D / A converter 14 via the image input in step S10 according to the set image processing mode. Output as a video on.

Then, the kisscan is performed in step S12 to check whether the key signal K is 1 or '1 key' in step S14.

If it is confirmed in step S14 that the signal 'key number 1' is input, it is determined whether the first operation is performed by performing step S16. If it is the first operation, the operation of step S18 is performed by performing step S18. A, B, C, and D screens are stored in the divided area, and step S20 is performed to quadrantly output the same screen currently stored in each of the four divided areas.

If it is determined in step S16 that the key '1' is not operated for the first time, step S22 is performed to determine whether the current split screen state is present. If the current split screen state is performed, step S24 is performed to perform a full screen display on the still screen, and if the current split screen state is not, the step S26 is performed to display the quad screen.

On the other hand, if it is determined in step S14 not the input of the 'key 1' signal, it is determined in step S28 whether the key signal is the input of the 'key 2' signal.

If it is determined in step S28 that the signal of the 'key 2' is input, it is determined whether the screen has been saved with the 'key 2' by performing the step S30, and if the screen has not been saved with the 'key 2', it is the current video. Judge at S32. If it is determined in step S32 that the current video is stopped, the data for the current screen is stored in the area of the image memory 24 where the screen B is to be stored, and then the operation S36 is performed on each screen stored in the current image memory 24. Displays a quadrant screen with data about.

If it is determined in step S32 that it is not the current video, it is determined that the data for screen B is to be re-stored, and step S38 is performed to perform the video full screen.

If the screen is stored in step S30 in step S30, it is determined in step S40 whether the screen is split screen. If the split screen is being displayed, step S42 is performed to perform full screen display. Step S44 is performed to perform the split screen display.

On the other hand, if it is determined in step S28 that the signal of the 'key 2' is not input, the same operation according to the above-described 'key 2' setting after determining whether the 'key 3' or 'key 4' input in steps S46 and S64 Steps S48 to S62 or S64 to S80 are performed to store the image memory 24 of the C or D screen or to change the display state.

On the other hand, if it is determined in step S64 that the key signal is 'key 5', step S84 is performed to check whether there is another key operation. If there is no other key operation, step S88 is performed to perform dividing. Even if there is a key operation, if it is determined in step S86 that the signal for dividing flag 2DID_FLAG is '0', step S88 is performed to perform dividing. If it is determined in step S86 that the dividing flag signal state is '1', step S90 is performed to perform the quadrant.

On the other hand, if it is determined in step S82 that the input of the 'key 5' is not determined, the operation is determined as the 'key 6' operation, and if the current state is divided by performing step S92, the operation S94 is performed and stored in the image memory 24 as a whole. After initializing the data as a whole, step S96 is performed to display a moving image. If the current state is not divided in step S92, step S98 is performed to convert the current full screen still image into a moving image for display.

As described above, the appearance of each pose of the buyer wearing different kinds of glasses is stored in the image memory 24, and the stored state is manipulated by the operator 'key 1' to 'key 4'. Displayed in full screen or quad screen on display 14, if necessary, by dividing screen in two or full screen by manipulating 'No. 5' and 'No. 6' when the purchaser selects glasses to purchase By operating, the data stored in the image memory 24 can be erased.

Obviously, the embodiment according to the present invention can be used to purchase clothes or other goods in addition to selecting glasses.

And, if necessary, the subtitle is formed so that the operator or the buyer can recognize the currently stored content or mode can maximize the use of the embodiment.

Therefore, according to the present invention, there is an effect of helping to easily select a product by providing an image that can be compared and judged when a buyer needs visual confirmation such as wearing or wearing different products.

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

Claims (5)

In the split screen comparison device for displaying a screen shot through a conventional camera on a display device, Image signal converting means for temporarily storing the photographed signal in a buffer and applying and displaying the data stored in the buffer to the display apparatus; Image storage means for storing a plurality of frame data by dividing one frame of screen temporarily stored in the buffer into regions; Logic means for outputting a control signal for controlling data input / output of the image storage means and a buffer of the image signal conversion means; A microcomputer which applies information to the control means about a mode by a key signal input from a key component including a plurality of keys and an operation means such as a remote controller receiver for receiving a signal transmitted from a remote controller; Split screen comparison device characterized in that it comprises a. The method of claim 1, A subtitle memory is further configured to provide subtitle information to the logic unit, so that the logic means displays a subtitle on the display apparatus by providing a control signal including a bitmap signal for forming the subtitle to the image signal converting means. And said split screen comparison device. The method of claim 1, Wherein said logic means controls a full screen display by providing a control signal for selecting a particular frame among a plurality of frame data stored in said image storage means, storing it in a buffer, and then displaying it on said display device. Device. The method of claim 1, The logic means samples the data for one quarter of the plurality of frame data stored in the image storage means by alternately reading the array information for the odd and even fields, and stores the data in a divided storage area of the buffer, respectively. And said quadrature display is controlled by displaying on a display device. The method of claim 1, The logic means reads out two pieces of frame information selected from the plurality of frame data stored in the image storage means and stores the data in the buffer in a half amount of data including a central portion in the storage area and then displays them on the display device. And dividing display by controlling the dividing display.