KR0123777B1 - Apparatus and method for indication of image title - Google Patents

Abstract

An apparatus for displaying an image title is disclosed. The apparatus comprises: a first converting unit(204) for converting an analog signal from an image signal processor to a digital signal; a comparator(205) for comparing the output signal from the first converting unit(204) to a reference value of various chrominance signal inputted from an external; a first memory(206) for storing the output from the comparator(205); a second memory(210) for storing an external information so as to control the data stored at the first memory(206); a second converting unit(209) for converting the data stored at the first memory(206) according to the control signal based on the information stored at the second memory(206); a memory controller(207) for providing the control signal so as to control the first memory(206); a controller (208) for controlling the comparator(205) and the second memory(210) and a display unit(212) for displaying the information inputted through an information input unit. Thereby, a number of title recording can be established.

Description

Image title display device and method

1 is a block diagram of a conventional image title device.

2 is a block diagram of an image title device according to an embodiment of the present invention.

3 is an operation flowchart of an image title device according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

204: A / D converter 206: Title memory

207: memory controller 208: controller

209: D / A converter 210: Title information memory

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to image processing in a video system. In particular, an image title representing a portion or a specific form of an image by a light or light color difference in a video signal output from a video camera or a video system such as a VTR. ) Display apparatus and method.

In general, electronic devices such as video tape recorders (VTRs), video cameras, and televisions are called video systems, and these video systems mainly process images of landscapes or people as video signals, which are electrical signals. The video signal is broadly classified into a luminance signal representing the contrast of the image signal and a color signal representing the color information. A title is used to emphasize a part of an image or to express a specific shape by a light or light color difference in a video signal.

1 is a block diagram of a conventional image title device.

When the luminance signal is detected from the video signal through the camera unit 101 and input to the A / D converter 102, the A / D converter performs A / D conversion on the black level and the white level of the luminance signal. That is, A / D conversion is performed by separating the dark and bright portions of the luminance signal. The luminance component of the video signal output through the camera unit is A / D converted and stored in the title memory 103, that is, RAM (Random Access Memory). The title information = date of the video signal stored by separating the dark and bright portions of the luminance signal in the title memory 103 from the controller 104 to the title memory 103 in accordance with the information input through the information input means 105. The control signal is outputted accordingly. The title information output from the title memory 103 is output to the encoder 107 through SW1 operated by the control signal output from the controller 104 or the color generator operated by the control signal output from the controller 104. That is, it is colored in an arbitrary color by ROM (Read Only Memory) and output through SW2.

Conventionally, in recording or reproducing a video signal output from a video system such as a video camera or a VTR, a ROM (Read Only Memory) in which color signal data is recorded for title reproduction as an arbitrary color signal with respect to the video signal is used. By using (RAM), only the luminance signal of the video signal was recorded and reproduced. When recording using RAM, a title is recorded for any image signal output from a video system such as a video camera or a VTR using a black level and a back level, which are luminance signals of the image. During playback, the recorded titles were reproduced using the black level and the white level. As described above, only the title of the luminance signal through the black level and the white level is possible for the video signal input from the conventional video system, and during playback of the title, the desired title is selected from the titles recorded by direct key operation. There is a problem to be reproduced.

Therefore, the present invention enables recording of multiple titles of any level, i.e., various colors, in the memory with respect to an image signal input from an image system, and selects and reproduces a plurality of titles recorded in the memory even during title playback. For example, when playing a video signal recorded in VIDEO TAPE), select a title to be played from a plurality of titles recorded in the memory and play it for an arbitrary time at an arbitrary time. To provide an image title display apparatus and method capable of recording a composite image signal by recording the data on an arbitrary recording medium.

In order to achieve the above object, the present invention provides a video system, comprising: first conversion means for converting an output signal of a signal processor for processing a video signal from an analog signal to a digital signal, and outputting the output signal of the first conversion means from an external source; A comparator for comparing with reference values of various color signals inputted, a first memory for storing arbitrary data compared and output by the comparator, and arbitrary information from an external source for controlling data stored in the second memory; A second memory for storing information data, and second data converting means for converting the data stored in the first memory into a digital signal to an analog signal by a control signal different from the arbitrary information stored in the second memory; A memory controller which inputs an output signal of the second memory to output a control signal for controlling the first memory; A comparator for inputting arbitrary information from the outside through the beam input means, a control unit for outputting arbitrary control signals to the first memory and the second memory, and display means for indicating the information inputted through the information input means to the control unit Characterized in that it comprises a.

In addition, a video signal input determination process for determining whether an arbitrary video signal is input from the outside to the video signal input unit of the video signal system, and a video signal input to the video signal input unit and signal processed by the image signal processor to be outputted as information input means. A title recording process of recording a title in the first memory according to any information input through the second and a reproduction of the title signal stored in the first memory according to any information input through the information input means after the title recording process. Title playback or video signal output for outputting a video signal output from a signal processor or a reproduction of a title signal stored in a first memory according to a title playback judgment process and any information inputted through information input means after the title playback judgment process. Characterized by including the process.

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

2 is a block diagram of an image title apparatus according to an embodiment of the present invention.

2 shows an image signal input unit 201 input through a video camera or by reproducing a recording medium, a signal processing unit 202 for processing an output signal of the image signal input unit, and a synchronization signal for a signal processing unit. The output signal of the synchronous signal generating means 203 to be generated, the first conversion means for converting the signal of the signal processing unit from an analog signal to a digital signal, that is, the A / D converter 204 and the A / D converter A comparator 205 for comparing the reference signal of the first memory, a first memory for recording a title signal output from the comparator, that is, a title memory 206, and a second signal for converting an output signal of the digital memory from a digital signal to an analog signal. A conversion means, i.e., a D / A converter 209, a second memory for recording arbitrary information on the title stored in the title memory, namely, the title information memory 210, and any control signal from the outside. A memory control unit 207 for controlling the title memory after input, information input means 211 for inputting arbitrary information into the title information memory, display means 212 indicating information of the information input means, A control unit for inputting arbitrary information from the signal processing unit 202 and the information input means 211 and controlling the comparator 205, the memory control unit 207, the title information memory 210, and the display means 212. 208, SW1 controlled by the output signal of the control section for outputting the output signal of the signal processing section and the output signal of the D / A converter to the outside, and the output signal and D of the signal processing section output by the SW1. And an encoder 213 for signal processing the output signal of the / A converter and a video signal recording unit 214 for recording the output signal of the encoder on a recording medium. The video signal input unit 201 and the synchronizing signal generating means 203 are connected to the signal processing unit, and the output terminal of the signal processing unit 202 is connected to the A / D converter 204, the SW1 and the control unit 208. The output of the A / D converter 204 is connected to the comparator 205, the output of the comparator 205 is connected to the title memory 206, and the output of the title memory 206 is connected to the D / A converter 209. The output terminal of the D / A converter 209 is connected to SW1 and the output terminal of the SW1 is connected to the encoder 213. The synchronization signal generating means 203 is connected to the memory control section 207 and the memory control section 207 is connected to the title memory 206. The title information memory 210 is connected to the memory control unit 207. The output terminal of the control unit 208 is connected to the comparator 205, the memory control unit 207, the title information memory 210, the SW1, and the display means 212. The information input means 211 is connected to the control unit 208. The output terminal of the encoder 213 is connected to the video signal recording unit 214.

3 is an operation flowchart of an image title device according to an embodiment of the present invention.

Referring to FIG. 3, the process of determining whether there is a video signal is input in step 301, the title recording process is in steps 302 to 304, the title reproduction judgment process is in step 305, and the title reproduction or video signal output process is performed. Steps 306 to 310 are performed.

Next, the operation of the present invention will be described with reference to FIG.

First, an image signal output by an image pickup signal of a video camera or a reproduction signal of an arbitrary recording medium is input to the image signal input unit 210. The signal output from the video signal input unit 201 is output after various signal processing through the signal processing unit 202 and the signal output through the signal processing unit 202 is output as a video signal through the encoder 213 to the monitor. Appear or are recorded in the image recording unit 214 by the recording medium. Arbitrary data for the title of the video signal output from the signal processing unit 202 through the information input means 211, for example, a certain amount of contrast, title number, title recording time, etc. When inputting to 208, the control unit 208 stores arbitrary data in the title information memory 210 and displays the information input by the information input means through the display means. The video signal output through the signal processor 202 is converted into an analog signal to a digital signal, and the converted signal is input to the comparator 205. The control unit 208 determines whether the video signal is output from the signal processing unit 202, reads out the title information already stored in the title information memory 210, and uses it as a reference signal of the comparator 205. The comparator 205 compares an arbitrary reference signal to determine how much contrast the video signal output from the A / D converter 204 and the video signal output using information stored in the title information memory. The title signal is stored in the title memory 206 in accordance with arbitrary information such as the title number and title recording time stored in the title information memory. Alternatively, when a title number and a reproduction time are input to the information input means 211 in order to reproduce the title signal stored in the title memory 206, it is input to the title information memory 210 through the control unit 208. When the control unit 208 outputs a control signal to the memory control unit 207 and the title information memory 210, the memory control unit 207 inputs information about the title number and the reproduction time stored in the title information memory 210. In the title memory 206, the title signal corresponding to the title number is reproduced during the reproduction time stored in the title information memory 210. FIG. The title signal stored in the title memory 206 is converted into a digital signal from an analog signal through the D / A converter 209 and is titled to a video signal output from the signal processing unit 202, controlled by the controller, and switched through SW1. It is output to the encoder 213. The signal output through the encoder 213 is output to the monitor as a composite video signal in which the title signal is combined with the video signal or recorded on an arbitrary recording medium through the video signal recording unit 214.

An operation flowchart of an image title apparatus according to an embodiment of the present invention will be described with reference to FIG.

In operation 301, it is determined whether an image signal outputted by an image pickup signal of a video camera or a reproduction signal of an arbitrary recording medium is input to the image signal input unit and signal processed by the signal processor.

In order to record the video signal output from the signal processor, it is determined whether the title recording information is input through the information input means (step 302).

When the title recording information is input through the information input means 211 in step 302, the number of the title, the recording time, and the level of contrast for setting the video signal to be recorded through the information input means. Information is entered and recorded in the title information memory (step 303).

After the operation 303 is performed, the controller 208 applies the control signal to the memory controller 207 when the output signal of the signal processor 202 is A / D converted and input to the comparator 205 to the title information memory 210. The title memory 206 stores the title signal in accordance with any stored data. (Step 304).

After performing step 304, the controller 208 determines whether title playback data is input through the information input means 211 to reproduce the title signal stored in the title memory 206. (Step 305).

When the title playback data is inputted through the information input means in step 305, the title video signal stored in the title memory is programmed in sequence according to the information such as the title number, the playback order, the playback time, etc. inputted through the information input means. In step 306, it is determined whether the title to be displayed or the title to be displayed is directly selected and displayed.

In order to reproduce the title video signal stored in the title memory 206 in order by the information input through the information input means 211 in step 306, the title number is transmitted through the information input means 211 to the title information memory. Information is input on the order in which the title signals are output and the time at which the title signals are reproduced.

In step 306, a title to be displayed is selected when a title signal is selected and displayed without sequentially playing the title video signal stored in the title memory 206 with respect to the input information.

After performing the steps 307 and 308, the title signal stored in the title memory 206 is reproduced by the data input through the information input means by the title number, the playback order, the playback time, or the title is directly selected. Playback is performed and the video signal output from the signal processor 202 is directly output.

After performing step 309, the information input means 211 determines whether the reproduction time for the title signal is completed. If the reproduction of the title signal is not finished, the step 309 is continued (step 310).

As described above, the present invention can record a plurality of titles of any level, that is, various colors, program and reproduce a plurality of titles recorded in a memory, and output a composite image signal by combining with a video signal during title reproduction. This has the advantage.

Claims (4)

In any video system, a first converting means (204) for converting an output signal of a signal processor for processing a video signal from an analog signal to a digital signal and an output signal of the first converting means (204) are input from the outside. A comparator 205 for comparing the reference values of the various color signals, a first memory 206 for storing arbitrary data compared and output from the comparator 205, and data stored in the first memory 206. Second memory 210 for storing information data by inputting arbitrary information from the outside to control the data, and arbitrary information stored in the second memory 206 for data stored in the first memory 206. The control signal for controlling the first memory 206 by inputting the second conversion means 209 for converting the digital signal into an analog signal by the control signal according to the control signal and the output signal of the second memory 210; Output The controller 208 for outputting arbitrary control signals to the second memory 210, the comparator 205 for inputting arbitrary information from the outside through the information control means, and the controller 208. And display means (212) indicating information inputted through the information input means. In any video system, a video signal input determination process for determining whether a video signal is input to the video signal input unit of the video system, and a video signal input to the video signal input unit and signal processed by the video signal processor is output. A title recording process for recording a title in the first memory according to any information input through the information input means and stored in the second memory; and after the title recording process, any information inputted through the information input means and stored in the second memory. A title playback judging process for judging reproduction of a title signal stored in the first memory according to the present invention; and reproducing or signal processing of the title signal stored in the first memory according to any information input through the information input means after the title re-judgment process. It consists of title playback or video signal output process that outputs video signal output from Title image display method, characterized by. 3. The title recording process according to claim 2, wherein the title recording process includes: a title recording judgment process of determining whether title record information is input through an information input means for recording a video signal input to the video signal input unit; When the title recording information is input, an information input process for inputting an arbitrary information for recording a title in a memory through an information input means, and an image signal input according to the information input through the information input means after the information input process. And a title recording process of recording a video signal input by a negative. The title reproducing process according to claim 2, wherein the title reproducing process comprises: a title reproducing determination step of determining whether or not title reproducing information is input through information input means for reproducing a title video signal stored in a memory; When the title reproduction information is input through the means, a sequential reproduction judging process for judging whether or not to reproduce the title signal stored in the memory according to arbitrary information or the like; and for the sequential reproduction judging process, A title information input process for inputting arbitrary information, and a title selection process for selecting a title signal for arbitrarily selecting and reproducing a title signal in the sequential reproduction judgment process.