KR100450579B1 - The motion detection system and method with assigned subject recognition function - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention can be read by a computer that records a motion detection system and its method and a program for realizing the method, which can be used for a system that needs to detect a specific subject such as intrusion detection, hunting, and animal surveillance. The recording medium in question.

2. The technical problem to be solved by the invention

The present invention provides a motion detection system for identifying a particular subject using standard image information (contour information) of a subject, and a computer readable recording medium having recorded thereon a method and a method for realizing the method. The purpose is to provide.

3. Summary of Solution to Invention

According to an aspect of the present invention, there is provided a motion detection system capable of identifying a subject, comprising: first image storage means for storing standard image information on a shape of a specific subject, reference image data for analyzing an image signal, and input image data; Image acquisition means for obtaining an image signal; Motion detection means for analyzing a video signal acquired by the video acquisition means by using reference video data and standard video information stored in the first video storage means to identify a specific subject and detecting the motion; And second image storage means for storing the image signal detected by the motion detection means.

4. Important uses of the invention

The present invention is used in a system that needs to detect a movement by identifying a specific subject, such as intrusion detection, hunting, and animal surveillance.

Description

The motion detection system and method with a subject identification function which can recognize a subject

The present invention can be read by a computer that records a motion detection system and its method and a program for realizing the method, which can be used for a system that needs to detect a specific subject such as intrusion detection, hunting, and animal surveillance. The present invention relates to a recording medium which, in more detail, includes standard image information (contour information) of a subject when it is necessary to detect a specific subject and detect its movement, such as identification of a person and an animal or acquiring an image of a specific animal. The present invention relates to a motion detection system for identifying a specific subject by using the same, and to detecting the movement thereof, and a computer readable recording medium having recorded thereon a program for realizing the method.

Most of the conventional motion detection system is configured using various sensors, the basic structure of these systems is made by adopting the analog (Analog) method. However, such an analog system has a relatively high probability of malfunction due to a change in surrounding environment or a set value. That is, since the operation result of the system changes from time to time due to a change in the amount of sunshine, a change in the climate, and a change in the brightness (luminance signal) of the artificial lighting device, accurate detection is difficult.

Although a motion detection system having a digital motion detector function has appeared in an improved form than the analog method as described above, it detects motion by only the most basic data change among the analysis of photographed image data. In addition, this is a method of storing the image data as it is even after motion detection, it is a situation that does not escape the limitation of using the existing technical results as it is.

In addition, there is a security alarm device having an image storage function in another conventional technology, which may be abused because the camera captures and stores in the memory even when any movement is detected in a given time unit.

As described above, the conventional techniques detect a motion, but even if the cause of the movement is not the movement of a specific subject desired, there is a problem in that it wastes storage resources and its expenses unnecessarily.

Accordingly, the present invention has been proposed to solve the above problems, and to realize a motion detection system, method and method for identifying a specific subject using the standard image information (contour information) of the subject and detecting the movement. Its purpose is to provide a computer readable recording medium having recorded thereon a program.

In addition, the present invention, by using a standard image information (contour information) of the subject to identify a specific subject to detect its movement, and recording the sound source signal when detecting a sound source (especially audio, etc.) signal or when detecting the image and sound signal It is another object of the present invention to provide a motion detection system and a method thereof and a computer readable recording medium having recorded thereon a program for realizing the method.

In addition, the present invention, by identifying the specific subject using the standard image information (contour information) of the subject to detect the movement, the image obtained after acquiring the sound source signal when detecting the sound source signal or the image and sound source signal To provide a motion detection system for compressing a sound source signal and transmitting and reproducing the original signal over a short distance and then restoring and reproducing the original signal, and a method and a computer-readable recording medium having recorded thereon a program for realizing the method. There is another purpose.

In addition, the present invention, by using the standard image information (contour information) of the subject to identify a specific subject to detect the movement, when recording a sound source signal or when detecting the image and sound signal signals, and recording a specific subject It is another object of the present invention to provide a motion detection system for generating an alarm signal or requesting rescue and a method thereof and a computer-readable recording medium having recorded thereon a program for realizing the method.

1 is a block diagram of an embodiment of a motion detection system capable of identifying a subject in accordance with the present invention.

Figure 2 is a configuration diagram of an embodiment of a sound source detection system used in addition to the motion detection system according to the present invention.

3 is a flowchart illustrating a motion detection method capable of identifying a subject according to the present invention.

* Explanation of symbols for the main parts of the drawings

10: image acquisition unit 11: low light video camera

13: color decoder 20: video signal analysis and memory controller

30: image storage unit 31: first memory

32: second memory 40: alarm

50: image storage and playback unit 51: storage memory control and image signal generator

54: non-volatile memory card 56: video signal restorer

58: video monitor 60: microphone

62: sound source signal analyzer 64: sound source signal converter

67: Sound source storage memory 70: Sound source player

72: speaker

An apparatus of the present invention for achieving the above object is, in the motion detection system capable of identifying the subject, the standard image information on the shape of the specific subject, the reference image data for analyzing the image signal, and for storing the input image data 1 image storage means; Image acquisition means for obtaining an image signal; Motion detection means for analyzing a video signal acquired by the video acquisition means by using reference video data and standard video information stored in the first video storage means to identify a specific subject and detecting the motion; And second image storage means for storing the image signal detected by the motion detection means.

The apparatus of the present invention may further include image reproducing means for reproducing the sensed image data stored in the second image storing means.

In addition, the apparatus of the present invention is characterized in that it further comprises an alarm means for generating an alarm in accordance with the detection signal generated when the movement of the specific subject in the image sensing means.

In addition, the apparatus of the present invention, the sound source signal analysis means for detecting whether the sound source signal is detected by analyzing the sound source signal obtained through the microphone; Sound source signal conversion means for converting an analog sound source signal into a digital sound source signal and generating a memory control signal when the sound source signal analysis means detects a sound source signal; Sound source storage means for storing a sound source signal from the sound source signal conversion means in accordance with a memory control signal from the sound source signal conversion means; And a sound source reproduction means for sending a sound source reproduction control signal to the sound source storage means to read and restore the stored sound source data so that the sound can be heard through the speaker.

On the other hand, the method of the present invention is a motion detection method applied to a motion detection system capable of identifying a subject, comprising: standard image information setting step of setting standard image information on the shape of a specific subject; A reference image data setting step of setting reference image data for image signal analysis; A motion detecting step of detecting a motion by comparing an input video signal with the set reference video data; Obtaining standard image information of the image signal of which the motion is detected; A specific subject identification step of identifying whether the image is a specific subject by comparing the obtained standard image information with the set standard image information; And an image data storing step of storing image data on which a desired specific subject is photographed.

The method may further include reproducing and displaying the image data of the image data stored in the image data storing step.

In addition, the method of the present invention, after identifying a specific subject in the specific subject identification step, by comparing the color information of the acquired image and the color information of the standard image information to identify the specific subject once more And re-identifying the subject.

On the other hand, the present invention, in order to identify and detect a specific subject, a motion detection system having a processor, the standard image information setting function for setting the standard image information on the shape of the specific subject; A reference image data setting function for setting reference image data for image signal analysis; A motion detection function for detecting a motion by comparing an input video signal with the set reference video data; A standard image information acquisition function for acquiring standard image information of the image signal which senses the movement; A specific subject identification function for identifying a specific subject by comparing the acquired standard image information with the set standard image information; And a computer-readable recording medium having recorded thereon a program for realizing an image data storage function for storing image data on which a desired specific subject is photographed.

The present invention also provides a computer-readable recording medium having recorded thereon a program for realizing a video data reproducing function of reproducing and displaying video data stored in the video data storing function.

In addition, the present invention, after identifying a particular subject in the specific subject identification function, by comparing the color information of the acquired image and the color information of the standard image information specific object re-identification to identify the specific subject once more A computer readable recording medium having recorded thereon a program for further realizing the identification function is provided.

As described above, the present invention analyzes image data input from a camera to identify whether a subject is a specific subject (eg, a person or a specific animal) designated by a user, and records the subject in a storage device if the subject is a corresponding subject. For example, if you want to store only the intruder in the security system, only the intruder can be detected and stored in the storage device without storing animals such as cats or dogs. It only detects the appearance of certain subjects, such as storing them on the storage device, and stores them on the storage device.

As described above, the present invention analyzes an image signal to prevent a malfunction of a sensor, analyzes whether a subject has a specific subject shape to be acquired, and stores the result when the analysis result is determined to have a specific subject shape specified. The digital method of storing in the device can improve the detection reliability, and the efficiency of use of the storage device can be improved by identifying and storing whether the cause of movement is caused by a specific subject but not detecting all the subjects. By including a data storage function and a display function thereof, it is possible to easily view using a commercially available display device, thereby improving convenience of use.

In addition, the present invention connects the acquired image and sound source (eg, audio) data with the communication medium for one-to-short distance transmission through a wired or wireless communication medium. That is, the present invention compresses the original data obtained first and then reconstructs the format so as to conform to the protocol of the transmission medium in order to transmit the acquired image data and sound source data through each communication medium. do. The receiving side receiving the image data decodes the original image data again and displays it on each display device so that the user can recognize it.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an embodiment of a motion detection system capable of identifying a subject according to the present invention.

As shown in FIG. 1, the motion detection system according to the present invention includes a standard image information (contour information) regarding a shape of a specific subject, reference image data for analyzing an image signal, and an image storage unit for storing input image data. 30, an image acquisition unit 10 for acquiring an image signal, reference image data and standard image information stored in the image storage unit 30, and the image signal acquired by the image acquisition unit 10 (contour) Information signal analysis and memory controller 20 for identifying a specific subject and detecting its movement, and storing and reproducing the image signal detected by the image signal analysis and memory controller 20. An image storing and reproducing unit 50 is provided.

At this time, the present invention can be configured separately from the playback function (playing unit) of the image storage and playback unit 50 of the above components.

On the other hand, the present invention, after installing the image storage and playback unit 50 at a long distance / short distance, after compressing the sensed image signal and reconstructed according to the transmission protocol, transmitted through the communication medium to store and restore the original signal if necessary Can play.

On the other hand, the present invention can be configured integrally with the image storage and playback unit 50.

Looking at a specific embodiment of each component in more detail as follows.

First, the image acquisition unit 10 may be configured to obtain a synchronization signal and a digitized image signal from a low light video camera 11 for capturing an image and a video signal obtained by the low light video camera 11. It includes a color decoder 13, and may be configured in other various ways. For example, when the low light video camera 11 is black and white, an analog-to-digital converter (ADC) and a sync signal separator may be used instead of the color decoder 13 (not shown in the figure). Not).

When the image signal 12 output from the low light video camera 11 is applied to a color decoder 13, a synchronization signal and digitized image data 14 are output therefrom to analyze the image signal. Is applied to the memory controller 20.

At this time, the size of one screen should be determined first in the image signal analysis and the memory controller of the memory controller 20. This size is determined by the number of data to be stored, that is, the resolution of the image to be displayed. When the size is determined, the size of the first and second memories 31 and 32 capable of storing one screen, that is, the address area is determined.

At this time, the image signal analysis and memory controller 20 generates various memory control signals 21, that is, address strobe signals, write / read control signals, memory addresses, and the like, according to the determined region. Here, the memory address increases linearly with respect to rows and columns. That is, the column address increases linearly for one horizontal component of the input image, and the row address increases linearly for the vertical component of the input signal. The generation method of these memory address signals is determined according to the vertical and horizontal synchronization of the input image signal and the generation method of the image signal of the color decoder 13. That is, it depends on the method of decoding the input signal in the color decoder 13.

The image storage unit 30 is configured to store reference image data for analyzing image signals, first memory 31 for storing input image data, and standard image information (contour information) regarding the shape of a specific subject. A second memory 32 is provided, the detailed operation of which is as follows.

First, the position of the low light video camera 11 is fixed, and the image captured with the camera fixed is used as the reference screen for image signal analysis by the image signal analyzer and the memory controller 20 to identify the first memory 31. Save to the area. At this time, the specific area designation is made by the memory partitioning method and is usually divided into the top addresses. Thereafter, when the motion detection system is operated in the analysis mode, the input image signal is stored in an address address other than the reference screen area of the first memory 31. At this time, the size of the screen is the same as the reference screen.

After that, the image signal analyzer and the memory controller 20 compare the contents of the current frame and the contents before n frames of specific addresses constituting one screen of the input image signal, and there is no movement if the contents are the same, and if the contents are different, the movement exists. It is decided to do. However, the image data recorded at one address, that is, the contents of the pixels, is not constant even if there is no motion. Because the actual noise of the system and the real characteristics of the components used are not the lower part of the pixel but the upper part of the system. Here, the constant upper part means similar or almost equal. Therefore, the data comparison is also performed only for the upper part and not the lower part. However, up to which bits of the pixel data to compare the data to be compared is configured to be variable. For example, it configures only the upper 6 bits among 8 bits.

In addition, the memory control signal 21 for storing in the first memory 31 and the image data 22 for storing in the first memory 31 are selected as a data format to process the image data output of the color decoder 13. The video signal analyzer and the memory controller 20 generate the encapsulation for output. At this time, the image signal analyzer and the image signal analyzer of the memory controller 20 readjust the input image data to fit the memory size and generate the image data to match the data format to be output.

The image signal analyzer and the memory controller 20 compare the input image data with the reference image stored in the first memory 31 in the same address group except for the highest address, and output different results. Only the part where the difference between the images is stored in another memory area of the first memory 31. In this way, information on the contours of the difference subjects, that is, the memory address group can be obtained.

Thereafter, the image signal analyzer and the memory controller 20 store the standard image information (contour information) regarding the shape of a specific subject for which the acquired address group (contour information) is to be stored. Compare with the contents, analyze whether the subject causing the movement is a specific subject to be acquired. The analysis method first compares the address group of the first memory 31 with the address group of the second memory 32 which stores standard image information.

At this time, since the size of the photographed object may be different from that of the standard image, the address group of the first memory 31 is enlarged or reduced. Zoom in and out in the following ways. If the address group is (n), (n + 1), (n + 2), (n + 3), (n + 4), (n + 5), ..., (n + m) If it is, it skips one address like (n), (n + 2), (n + 4), ..., (n + (m-1)) If you take two and skip one, it will be reduced to 2/3. The magnification is doubled by writing the same data in two addresses. In this case, the same data may be used or an interpolation technique, that is, an average value may be extended.

When the overlapping range of the address group obtained by the reduction and the address group of the standard image information is over 90%, it can be recognized as an object similar to the object to be acquired. If the overlap range is 100%, enlarge it by 1 times and compare it again. This is because when the standard image is larger than the input image, the overlapping range is 100%.

First, when the contour information is confirmed due to the address group, internal color information comparison is performed. That is, it compares whether there is the same or similar color information in the similar address group, and if there is a part overlapping more than 90%, it is regarded as the designated specific subject. Both of these cases must be satisfied, but since the color information is not properly read when the surroundings are dark, it may be identified only by the contour information in low illumination.

In this case, when a specific subject to be detected is photographed and detected, a detection signal 23 is generated by the alarm 40 to generate an alarm, and a nonvolatile memory card having a nonvolatile property such as a flash memory is used to generate the alarm. In order to store the data in the storage device 54, the data is transferred to the storage memory control and the image signal generator 51 and prepared to be stored in the nonvolatile memory card 54. At this time, the hunting system is to be configured without the alarm 40, so the alarm 40 is not an essential component of the present invention.

The storage memory control and image signal generator 51 generates the memory control signal 52 and the storage data 53 and transmits them to the nonvolatile memory card 54 to store the sensed image data.

On the other hand, when the user wants to watch it, the storage memory control and image signal generator 51 generates a video signal decompressor control signal 59 for operating the video signal decompressor 56, and generates a nonvolatile memory card ( The stored video data signal 55 is read from 54 to generate a video signal 57 that can be viewed on the video monitor 58 so that viewing is possible.

2 is a diagram illustrating an embodiment of a sound source detection system used in addition to the motion detection system according to the present invention.

The sound source detection system used in addition to the motion detection system according to the present invention includes: a sound source signal analyzer 62 for detecting whether a sound source signal is detected by analyzing a sound source signal acquired through the microphone 60, and the sound source signal analyzer A sound source signal converter 64 for converting an analog sound source signal into a digital sound source signal and generating a memory control signal when the sound source signal is detected at 62, in accordance with the memory control signal from the sound source signal converter 64; A sound source storage memory 67 for storing a sound source signal from the sound source signal converter 64, and a sound source reproduction control signal is sent to the sound source storage memory 67 to read and restore the stored sound source data, and the speaker 72. It includes a sound source player 70 for allowing to listen through.

In this case, when the sound source signal is detected by the sound source signal analyzer 62, the sound source detection system may transmit an alarm signal to the alarm 40 or the speaker 72 to generate an alarm.

In particular, the present invention is characterized in that it is operated when a voice of a person is detected from the various sound sources.

Meanwhile, the present invention can be configured to store the video / audio signal obtained as described above in a storage device (hard disk, CD-ROM, optical disk, etc.) of the computer system.

In addition, the present invention can be configured to record / record the detected video and audio signals on a VTR tape as still or video for a user-specified time when motion is detected.

In addition, the present invention can be configured to notify the detection of the detection by dialing the phone number specified by the user automatically or by the operation of the remote control when the movement of the person is detected.

3 is a flowchart illustrating a motion detection method capable of identifying a subject according to the present invention.

First, standard image information (contour information) regarding a shape of a specific subject is set (301). Detailed description thereof will be described later.

In operation 302, reference image data for image signal analysis is set. That is, the camera is fixed to a direction and a position to be monitored, and image data photographed while the camera is fixed is stored as a reference image data for image signal analysis in a specific region.

After that, when the system operates in the analysis mode, the motion is detected by comparing the input video signal with the set reference video data (303). Looking at this in detail as follows.

First, when power is applied to the system of the present invention to operate the camera, a video input signal is input to the system. The input video signal is compared with the current video screen and the previous video screen to calculate whether there is a difference. In this case, in order to analyze the difference between the efficiency of the calculation and the surrounding environment in a short time, a specific area of the image storage unit is set. This is because the memory area for storing one screen has a corresponding address in each row and column, and the entire screen is stored with each row and column address sequentially increasing. However, as these addresses are sequentially increased, the amount of calculation becomes huge and the calculation cannot be completed in a short time. Therefore, in order to be effective, only specific addresses of rows and columns are taken and calculated. In addition, when the calculation is performed every frame, all the motions are insensitive to having linearity, so that the frame interval to be calculated can be adjusted. This is because the sensitivity should be decreased when the change of the environment occurs frequently. In this way, the current video screen and the previous video screen are compared and the value corresponding to a specific address occupies more than 30% of the entire specific address. Also, if the address is directional, that is, the address of the changed value is moved to the row. If it increases or decreases, it can be determined that the subject moves to the left and right, and if the column address changes, it moves up and down. Also, even if the row and column addresses change at the same time, the direction of the movement can be known from the vector values.

In this way, when motion is detected, the subject begins to analyze the outline of the subject. That is, in operation 304, standard image information (contour information) of a motion image signal is detected. The analysis method is described in detail as follows.

The screen photographed when the system of the present invention is first operated is stored as reference image data. When an analysis is started and an object causing a movement is recognized based on the reference image data, the image data is stored in a memory, and the stored image is stored. The reference image data portion is removed from the data. Then, only the object that causes the movement is left, and the address of the memory corresponding to the outline, that is, the standard image information (contour information) can be obtained.

Thereafter, the acquired standard image information is compared with the set standard image information to identify whether it is a specific subject (305). That is, it is identified whether the desired memory object is compared with the outline information (standard image information) of the specific object to be acquired.

However, since the desired subject has various types of contour information, the size can also be changed freely, and only a part of the subject can be photographed. First, the outline information of the subject to be taken is sampled in various forms that the subject can take and stored in a specific memory. The size of the photographed subject and the size of standard image information are solved by a vector technique. This method solves this problem by a method of enlarging / reducing acquisition information when the acquisition information is different from that of standard image information. In more detail, since the proportion of each part in a possible form of a particular subject has a constant value, it is possible to compare whether it is suitable for this ratio. In this way, when the ratio between the standard image information and the acquired information exceeds 80%, it is stored. This is possible because the identification of different subject groups such as people and animals, bears and deer, etc. is possible, not compared between the same subject groups.

That is, if the subject to be acquired is a person, the posture that a person can express is limited.As a method of analyzing this, a person walks upright, so that the body is rectangular in shape, and if the person is lying down, In other words, even if they mimic animals, the ratio of the width of the limbs of humans is wider than that of animals. Therefore, even if the person is in a prone form, the animal and the human can be identified, and the leg is bent in the form of being bent, thereby detecting a person. In addition, since the form of the crawl can not be taken by the animal, it can be easily identified, and the movement of the arm adjacent to the head can be identified to identify the movement of the person.

Next, in the case of detecting a specific animal, animals belonging to the same family have regularity of shape, and the postures that can express them are also limited, so that they can be identified.

As a result of the analysis, when the subject to be photographed is stored in the nonvolatile memory card, the user may check the photographed and stored subject using the video monitor when necessary (306 and 307). On the other hand, in the intrusion detection system, such as the monitor checks the video monitor is configured to display and display the image data photographed by a particular subject.

On the other hand, voice is recorded only when voice data is also detected. At this time, if the user's phone number or the user's designated phone number is delivered and the voice information is delivered, the voice information transmission has no meaning if the situation is terminated while making a call. By recording the voice signal while notifying the defined phone number, reliable voice information is secured.

On the other hand, the present invention can use a conventional sensor method for detecting the movement of the subject. That is, by configuring the power to the system of the present invention through the primary detection from the sensor, or by the power is applied to the system by repeating the ON / OFF of the power for a predetermined time that can be changed by the user Power consumption can be reduced.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

In the present invention as described above, in order to prevent the malfunction of the sensor by analyzing the image signal to analyze whether the subject has the shape of the specific subject to be obtained, the result of the analysis is generated as having a specific subject shape specified In this case, it is possible to improve the detection reliability by storing the data in the storage device. That is, it is possible to solve the reliability problem of the detection system due to the malfunction of the intrusion detection system by various sensors, which improves the reliability of the detection system by reducing the range of errors that may occur due to the operation characteristics of the analog device and the limit of the set value. .

In addition, the present invention can improve the use efficiency of the storage device by not only detecting all the subjects but also identifying and storing whether the cause of the movement is due to a specific subject specified, and recording only the audio signal when the voice signal is generated. It works. That is, when the present invention is used for security purposes, by identifying the movements of animals and the movements of people, it is possible to reduce the cost of dispatching unnecessary security agents due to the movements of animals, and to expect an effective security role. In addition, since the intruder is mainly used to store the image information, it is possible to maximize the memory utilization efficiency by preventing unnecessary use of the memory such as storing image data due to unnecessary movement around.

In addition, the present invention can be specialized in use by photographing and storing only a specific subject. That is, the user can select the type of subject to be taken to monitor and examine the appearance of a specific subject, and thus various application ranges may occur.

In addition, the present invention includes a data storage function and a display function thereof so that the user can easily watch using a commercially available display device, thereby improving convenience of use.

In addition, the present invention can be connected to a variety of communication media, it is possible to generate an alarm, the rescue signal transmission and image transmission when the appearance of a particular subject.

Claims (22)

In the motion detection system that can identify the subject, First image storage means for storing standard image information on a shape of a specific subject, reference image data for analyzing image signals, and input image data; Image acquisition means for obtaining an image signal; Motion detection means for analyzing a video signal acquired by the video acquisition means by using reference video data and standard video information stored in the first video storage means to identify a specific subject and detecting the motion; And Second image storage means for storing the image signal detected by the motion detection means Motion detection system capable of identifying the subject, including. The method of claim 1, Image reproducing means for reproducing the sensed image data stored in the second image storing means. Motion detection system capable of identifying the subject further comprising. The method of claim 2, And the second image storing means and the image reproducing means are integrally formed. The method of claim 1, The first image storage means, A first memory for storing reference image data and input image data for image signal analysis; And Second memory for storing standard image information about the shape of a specific subject Motion detection system capable of identifying the subject, including. The method of claim 1, The motion detecting means, After setting the reference image data for analyzing the image signal, the input image signal is compared with the set reference image data to detect motion to obtain standard image information, and then the obtained standard image information is preset. A motion detection system capable of identifying a subject, characterized by identifying and storing a specific subject in comparison with standard image information. The method of claim 5, wherein The standard video information, Motion detection system capable of identifying the subject, characterized in that the contour information on the shape of the specific subject. The method of claim 6, The contour information, A motion detection system capable of identifying a subject, which is an address group of a memory. The method of claim 5, wherein The standard image information comparison process, And comparing the obtained standard image information with the preset standard image information as it is, and then zooming in or out to compare the obtained standard image information. The method of claim 5, wherein And identifying a specific subject by comparing the standard image information, and then re-identifying the specific subject by comparing color information of the obtained image with color information of the standard image information. 2 possible motion detection system. The method according to any one of claims 1 to 9, Alarm means for generating an alarm according to a detection signal generated when a movement of a specific subject is detected by the image detection means; Motion detection system capable of identifying the subject further comprising. The method according to any one of claims 1 to 9, Sound source signal analyzing means for detecting whether the sound source signal is detected by analyzing the sound source signal acquired through the microphone; Sound source signal conversion means for converting an analog sound source signal into a digital sound source signal and generating a memory control signal when the sound source signal analysis means detects a sound source signal; Sound source storage means for storing a sound source signal from the sound source signal conversion means in accordance with a memory control signal from the sound source signal conversion means; And Sound source reproduction means for sending a sound source reproduction control signal to the sound source storage means to read and restore the stored sound source data so that the sound can be heard through a speaker. Motion detection system capable of identifying the subject further comprising. The method of claim 11, Alarm means for generating an alarm according to a detection signal generated when the sound source signal analysis means detects a sound source signal Motion detection system capable of identifying the subject further comprising. The method of claim 12, The sound source signal is a motion detection system capable of identifying a subject, characterized in that the voice signal of a person from among the various sound sources. A motion detection method applied to a motion detection system capable of identifying a subject, A standard image information setting step of setting standard image information on a shape of a specific subject; A reference image data setting step of setting reference image data for image signal analysis; A motion detecting step of detecting a motion by comparing an input video signal with the set reference video data; Obtaining standard image information of the image signal of which the motion is detected; A specific subject identification step of identifying whether the image is a specific subject by comparing the obtained standard image information with the set standard image information; And Image data storage step for storing image data in which a specific subject desired is captured Motion detection method capable of identifying a subject comprising a. The method of claim 14, Image data reproduction step of reproducing and displaying the image data stored in the image data storage step Motion detection method that can further identify the subject. The method of claim 14, After identifying the specific subject in the specific subject identifying step, the specific subject re-identifying step of identifying the specific subject once more by comparing the color information of the acquired image with the color information of the standard image information. Motion detection method that can further identify the subject. The method according to any one of claims 14 to 16, The standard video information, Motion detection method capable of identifying the subject, characterized in that the contour information on the shape of the specific subject. The method of claim 17, The contour information, A motion detection method capable of identifying a subject, which is an address group of a memory. The method according to any one of claims 14 to 16, The comparison process of the specific subject identification step, And comparing the acquired standard image information with the set standard image information as it is, and then zooming in or out to compare the obtained standard image information. In order to identify and detect a specific subject, in a motion detection system having a processor, A standard image information setting function for setting standard image information on a shape of a specific subject; A reference image data setting function for setting reference image data for image signal analysis; A motion detection function for detecting a motion by comparing an input video signal with the set reference video data; A standard image information acquisition function for acquiring standard image information of the image signal which senses the movement; A specific subject identification function for identifying a specific subject by comparing the acquired standard image information with the set standard image information; And Image data storage function to store image data in which a specific subject desired is captured A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 20, Image data reproduction function for reproducing and displaying image data stored in the image data storage function A computer-readable recording medium that records a program for further realization. The method of claim 20 or 21, After identifying the specific subject in the specific subject identification function, the specific subject re-identification function for identifying the specific subject once more by comparing the color information of the acquired image with the color information of the standard image information. A computer-readable recording medium that records a program for further realization.