KR20140100151A - Apparatus and method for slow motion video recording - Google Patents

Abstract

The present invention relates to a device and a method for recording a slow motion video and, more specifically, to a device and a method for recording a slow motion video which detects the occurrence of an event, converts the number of frames per second for image data, and can take a video and record a slow motion video in real time. According to the present invention, the device for recording a slow motion video comprises an image taking unit which acquires image data and sound data by taking an image around a recording device based on the first preset number of frames per second; an event detecting unit which detects the occurrence time of an event in the recording device; a first storage unit which stores image data received from the image taking unit; an image data processing unit which receives the image data saved in the first storage unit and processes the image data based on the second number of frames per second, which is less than the first number of frames per second, according to the occurrence of the event detected by the event detecting unit; and a second storage unit which stores processed image data received from the image data processing unit.

Description

[0001] APPARATUS AND METHOD FOR SLOW MOTION VIDEO RECORDING [0002]

The present invention relates to a slow motion video recording apparatus and method, and more particularly, to a slow motion video recording apparatus and method for detecting a motion of an event and converting the number of frames per second of video data to generate a slow motion And a video recording apparatus and method.

As the leisure culture has developed, devices such as action cams and sports cams have been developed that record dynamic moments in which users enjoy sports in real time. The user can attach an action cam, a sports cam to a part of the body or a device for enjoying sports, so as to record extreme motion situations, i.e., dynamic moments, from the user's point of view. The demand of users who want to check such extreme motion situations and dynamic moments as slow motion videos is also increasing.

The user confirms the recorded image, and in order to change or edit a desired section, that is, a section in which a dynamic scene is recorded, as a slow motion, the user has to edit using a professional image editing tool. There is a problem that it is difficult to easily edit desired scenes.

In addition, a technique of reproducing a recorded video and setting a desired section by a user and playing the section in a slow motion is a technique in which a user directly confirms the entire moving image, and when the dynamic scene is determined as a photographed image, Therefore, there is a problem in that it is troublesome to determine whether a dynamic moment is recorded based on a user's recorded image, and a start interval and an end interval of a slow motion playback must be set.

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above problems, and it is an object of the present invention to acquire video data around a recording apparatus, detect the occurrence of an event of a video recording apparatus, And an object of the present invention is to provide a slow motion video recording apparatus and method capable of recording motion video.

According to another aspect of the present invention, there is provided a slow motion video recording apparatus comprising: a photographing unit for photographing an image of a surroundings of a recording device at a predetermined first frame rate per second to acquire image data and voice data; A first storage unit for storing image data received from the photographing unit; a second storage unit for receiving image data stored in the first storage unit and generating an event to be detected by the event detection unit; And a second storage unit for storing image data for processing the image data at a second frame rate lower than the first frame rate per second and for storing processed image data inputted from the study of the image data, And provides a recording apparatus.

The event sensing unit of the slow motion video recording apparatus of the present invention may include at least one of an acceleration sensor, an image data motion change detection unit, and a voice data peak detection unit.

Preferably, the event sensing unit of the slow motion video recording apparatus of the present invention senses a time point at which the acceleration sensor senses a motion value of a recording device having a predetermined motion value or more as an event occurrence time point.

It is preferable that the event sensing unit of the slow motion video recording apparatus of the present invention senses when the video data motion change detection unit senses a sudden change in motion of video data over a preset video motion change as an event occurrence time.

The event detecting unit of the slow motion video recording apparatus of the present invention may detect a point of occurrence of a peak of voice data detected by the voice data peak detecting unit as an event occurrence time point.

It is preferable that the event detection unit of the slow motion video recording apparatus of the present invention detects the occurrence of the button input event detected by the button input detection unit.

It is preferable that the image data of the slow motion video recording apparatus of the present invention is processed by processing the frame number per second of the image data to a second number of frames per second for a first reference time before and after the occurrence of an event.

The second frame rate per second of the slow motion video recording apparatus of the present invention is preferably gradually decreased or gradually increased on the basis of the occurrence time of the event during the first reference time or a constant number of frames.

It is preferable that the image data of the slow motion video recording apparatus of the present invention processes the first frame rate of the image data to the second frame rate per second during the second reference time after the occurrence of the event.

The second frame rate per second of the slow motion video recording apparatus of the present invention is preferably gradually decreased or gradually increased during the second reference time or a predetermined number of frames.

According to another aspect of the present invention, there is provided a slow motion video recording method comprising: a photographing step of photographing an image of a surroundings of a recording device at a predetermined number of frames per second by a photographing unit to acquire image data and voice data; A first storage step of receiving and storing image data acquired by the first storage unit; a second storing step of receiving image data stored in the first storage unit, And a second storage step of storing the processed image data processed in the image data processing step of the second storage unit and the image data processing step of processing the image data in the second number of frames per second The moving image is recorded in the recording medium.

The event sensing step of the slow motion video recording method of the present invention preferably detects the occurrence time of the event through at least one of an acceleration sensor, a video motion change detection unit, a voice data peak detection unit, and a button input detection unit.

It is preferable that the event sensing step of the slow motion video recording method of the present invention detects a time point at which the acceleration sensor senses a motion value of a recording device having a predetermined motion value or more as an event occurrence time.

In the event detection step of the slow motion video recording method of the present invention, it is preferable that the video motion change detection unit detects a time point at which a rapid motion change is sensed above a predetermined video motion change as an event occurrence time.

It is preferable that the event detection step of the slow motion video recording method of the present invention detects a point of occurrence of a peak of the voice data detected by the voice data peak detection unit as an event occurrence point.

In the event detection step of the slow motion video recording method of the present invention, it is preferable that the button input time detected by the button input detection unit is detected as an event occurrence time.

It is preferable that the image data processing step of the slow motion moving picture recording method of the present invention processes the first frames per second for the first reference time before and after the occurrence of the event as the frames per second.

The second frame rate per second of the slow motion video recording method of the present invention is preferably gradually decreased or gradually increased on the basis of the event occurrence time during the first reference time or a predetermined number of frames.

In the slow motion video recording method of the present invention, it is preferable that the image data processing step processes the first frames per second for a second reference time after the occurrence of the event to a second frame per second.

It is preferable that the second frame rate per second of the slow motion video recording method of the present invention is gradually decreased or gradually increased during the second reference time or a predetermined number of frames.

The slow motion video recording apparatus and method according to the present invention acquires video data around the recording apparatus, detects the time of occurrence of the event, converts and stores the number of frames per second of the video data, and records the state of the event occurrence time as a slow motion video There is an effect that can be done.

According to another aspect of the present invention, there is provided an acceleration sensor comprising: an acceleration sensor, a video data motion change detection unit, a voice data peak detection unit, or a button input detection unit; Or the generation of a peak of voice data or occurrence of a button input is detected as an event and the number of frames per second of the photographed image data is converted and stored automatically so that the user can automatically store the scene desired by the user as a slow motion video There is an effect that can be.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 is a block diagram of a slow motion video recording apparatus according to the present invention.
2 is a schematic diagram showing a method of storing a slow motion moving picture by converting the number of frames per second.
FIG. 3 is a schematic diagram showing a method of variably converting the number of frames per second of video data before and after an event occurs to store a slow motion moving image.
4 is a schematic diagram showing a method of storing a slow motion moving image by converting the number of frames per second of image data before and after the occurrence of an event to the same.
5 is a schematic diagram showing a method of variably converting the number of frames per second of video data after the occurrence of an event to store the slow motion video.
FIG. 6 is a schematic diagram showing a method of storing the slow motion moving image by converting the frame number per second of the image data after the occurrence of the event equally.
7 is a schematic diagram showing a method of storing a slow motion moving picture when a continuous event occurs.
8 is a graph showing a motion value of the recording apparatus with respect to a predetermined motion value of the acceleration sensor.
9 is a flowchart illustrating a slow motion video recording method according to the present invention.

Hereinafter, preferred embodiments of a slow motion moving picture recording apparatus and method according to the present invention will be described in detail with reference to the drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a block diagram of a slow motion video recording apparatus according to the present invention.

1, the slow motion moving picture recording apparatus according to the present invention includes a photographing unit 10 for photographing an image of the surroundings of a recording apparatus at a predetermined frame rate per second and acquiring image data and voice data, A first storage unit 30 for storing image data received from the photographing unit 10, and a second storage unit 30 for receiving image data stored in the first storage unit 30 A video data processing unit 40 for processing the video data at a second frame rate per second lower than the frame rate per second in accordance with the occurrence of an event sensed by the event sensing unit 20, And a second storage unit 50 for storing the processed image data input from the first storage unit 40.

In this case, the number of frames per second is 30 frames or more per second, and the number of frames per second is the number of frames lower than the first number of frames per second, which is 30 frames or more per second.

The event detection unit 20 of the slow motion video recording apparatus according to the present invention includes an acceleration sensor, a video data motion change detection unit, a voice data peak detection unit, or a button input detection unit.

At this time, the event sensing unit 20 senses a time point at which the acceleration sensor senses a motion value of the recording device having a predetermined motion value or more as an event occurrence time point. According to an embodiment of the present invention, the motion value detected by the acceleration sensor is a value between OG and + -16G. As shown in FIG. 8, according to an embodiment of the present invention, (L2) if the motion value of the recording apparatus is less than + 2G, (L1) if the motion value of the recording apparatus is less than + 2G, (L2) .

That is, the acceleration sensor senses that an event has occurred when the motion value of the recording apparatus becomes + -2G or more, and detects the moment when the motion value of the recording apparatus becomes + -2G or more as an event occurrence point.

At this time, since the setting of the motion value of the acceleration sensor can be changed by the user, it is possible to change the value that the acceleration sensor senses as normal, fast, and extreme by the user's setting.

In addition, the event sensing unit 20 senses a time point at which the image data motion change detection unit senses a sudden change in motion of the image data over a predetermined image motion change as an event occurrence time point.

In this case, the preset video motion change is a value of 10% or more and 100% or less, and the video data motion change detection unit senses a sudden motion change of the video data when the motion change rate of the video data is 10% or more and 100% .

Also, the event detection unit 20 detects when a peak of the voice data detected by the voice data peak detection unit occurs, as an event occurrence time point.

In addition, the event detection unit 20 detects when a user's button input detected by the button input detection unit is generated as an event occurrence time point.

2 is a schematic diagram showing a method of storing a slow motion moving picture by converting the number of frames per second.

The video data studying unit 40 of the slow motion video recording apparatus according to the present invention converts the number of frames per second using the method as shown in FIG. 2 to store the slow motion video.

Assuming that an image photographed at 48 frames per second is reproduced at 24 frames per second, it means that an image photographed at 1 second can be reproduced for 2 seconds to reproduce a slow motion with twice the time.

2, the first storage unit 30 and the second storage unit 50 are divided into T0, T1, T2, and T3 sections, and the first storage unit 30 stores the first storage unit 30 and the second storage unit 50, One image data is stored at the same time interval of 1 second for each section.

Assuming that the shooting unit 10 acquires the image data at the first frame rate per second and an event occurs at the interval T0 when the first frame per second is assumed to be 120, (120 FPS, FPS: Frame Per Second) stored in the first storage unit 30 into a second frame number (40 FPS) and stores the processed image data in the second storage unit 50 , The video data stored in the TO of the second storage unit 50 becomes 40 FPS video data for 3 seconds.

That is, the image data of 120 FPS for one second which is photographed in the time interval in which the occurrence of the event is sensed and stored in the first storage unit 30 is converted into image data of 40 FPS for 3 seconds through the image data 40 And the second storage unit 50 stores the processed video data of 40 FPS for 3 seconds. Therefore, if the user confirms the image data stored in the second storage unit 50, You can check motion video.

That is, the slow motion video recording apparatus according to the present invention includes an acceleration sensor, a video data motion change detection unit, a voice data peak detection unit, or a button input detection unit, even if the user does not edit the video shot through a separate editing unit, The user can check the slow motion video of the event occurrence period through the video data stored in the second storage unit 50 by detecting the time point and automatically converting the video data at the time of occurrence of the event into the slow motion video and real- It is effective.

FIG. 3 is a schematic diagram showing a method of variably converting the number of frames per second of video data before and after an event occurs to store a slow motion moving image.

3, the first storage unit 30 and the second storage unit 50 are configured to have a period of T0 through T9, and the first storage unit 30 stores each interval as 1 Sec, and image data of 120 FPS is stored in each section.

If the event occurrence time detected by the event occurrence detection unit 20 is T4, the video data studying unit 40 sets the number of frames per second of the video data for the first reference time before and after the event occurrence time, The number of frames per second is the number of frames that gradually decrease and gradually increase with reference to the time of occurrence of the event during the first reference time.

In this case, the first reference time is 20 seconds or less before and after the occurrence of the event, and is 40 seconds or less in total.

According to one embodiment of the present invention, the first reference time is 15 seconds (7.5 seconds before and after the occurrence of the event), the number of frames per second is 120, the number of frames per second is the time of event occurrence As the criterion, it gradually decreases to 80, 60, 48, 40, 48, 60, 80 and gradually increases. 3 and according to an embodiment of the present invention, the photographing unit 10 photographs an image of the vicinity of the recording apparatus, acquires image data, and stores the acquired image data in the first storing unit 30. At this time, the first storing unit 30 ) Is 120 FPS. The event occurrence detecting unit 20 detects a motion value of a recording device exceeding + -2G, which is a preset motion value, as shown in FIG. 8, and if the motion value of the recording device is detected in the period T4, The sensing unit 20 senses T4 as an event occurrence time point. The video data studying unit 40 stores the image data stored in the first storage unit 30 as 80 FPS image data for 1.5 seconds in each T1 interval, 60 FPS image data for 2 seconds in the T2 interval, 2.5 seconds in the T3 interval, 60 FPS image data for T4 section, 48 FPS image data for 3 seconds T5 section, 60 FPS image data for 2.5 seconds for T5 section, 60 FPS image for 2 seconds for T6 section, Processed into image data of 80 FPS, and stored in the second storage unit 50.

According to one embodiment of the present invention, when the user reproduces the processed image data stored in the second storage unit 50, the user can confirm the slow motion video in which the number of frames per second varies before and after the event occurrence time.

Therefore, according to the present invention, even if the user does not edit the photographed image data through the separate editing means, the user can easily recognize the slow motion video before and after the occurrence of the event such as the extreme motion sensed by the event generation sensing unit 20. [ Is automatically stored.

4 is a schematic diagram showing a method of storing a slow motion moving image by converting the number of frames per second of image data before and after the occurrence of an event to the same.

The image data processing unit 40 processes the first frame per second of the image data into a second frame per second for a first reference time before and after the occurrence of the event, and the second frame per second is a constant frame number.

In this case, the first reference time is 20 seconds or less before and after the occurrence of the event, and is 40 seconds or less in total.

According to another embodiment of the present invention, the first reference time is 21 seconds (10.5 seconds before and after the occurrence of the event), the number of frames per second is 120, the number of frames per second is 40 Do. 4 and according to another embodiment of the present invention, the photographing unit 10 photographs an image of the surroundings of the recording apparatus, acquires the image data, and stores the acquired image data in the first storing unit 30. At this time, The image data stored in the unit 30 is 120 FPS. The event occurrence detecting unit 20 detects a motion value of a recording device exceeding + -2G, which is a preset motion value, as shown in FIG. 8, and if the motion value of the recording device is detected in the period T4, The sensing unit 20 senses T4 as an event occurrence time point. The video data processing unit 40 processes the 120 FPS image data stored in the first storage unit 30 into 40 FPS image data and the second storage unit 50 processes 40 FPS And stores the processed image data.

According to the embodiment of the present invention, when the user reproduces the processed image data stored in the second storage unit 50, the user can check the slow motion video having a constant number of frames per second before and after the event occurrence time point.

Therefore, according to the present invention, even if the user does not edit the photographed image data through the separate editing means, the user can easily recognize the slow motion video before and after the occurrence of the event such as the extreme motion sensed by the event generation sensing unit 20. [ Is automatically stored.

5 is a schematic diagram showing a method of variably converting the number of frames per second of video data after the occurrence of an event to store the slow motion video.

5, the first storage unit 30 and the second storage unit 50 are configured to have a period of T0 through T9, and the first storage unit 30 stores each interval as 1 Sec, and image data of 120 FPS is stored in each section.

In this case, if the event occurrence time detected by the event occurrence detecting unit 20 is T1, the video data studying unit 40 sets the number of frames per second of the video data for the second reference time, And the second number of frames per second is the number of frames which gradually decreases during the second reference time after the occurrence of the event for the first reference time and gradually increases.

In this case, the second reference time is less than or equal to 40 seconds from the event occurrence time. According to the embodiment of FIG. 5 and the present invention, the second reference time is 15 seconds, The number of frames per second is gradually decreased to 80, 60, 48, 40, 48, 60, and 80 based on the event occurrence time point. 5 and according to an embodiment of the present invention, the photographing unit 10 photographs an image of the surroundings of the recording apparatus, acquires the image data, and stores the acquired image data in the first storing unit 30. At this time, ) Is 120 FPS. The event occurrence detecting unit 20 detects a motion value of a recording device exceeding + -2G, which is a preset motion value, as shown in FIG. 8, and if the motion value of the recording device is detected in the T1 interval, The sensing unit 20 senses T1 as an event occurrence time point. The video data studying unit 40 stores the image data stored in the first storage unit 30 as 80 FPS image data for 1.5 seconds in each T2 period, 60 FPS image data for 2 seconds in the T3 interval, 2.5 seconds in the T4 interval, 60 FPS image data for T5 section, 48 FPS image data for 3 seconds, 60 FPS image data for 2.5 seconds in T6 section, 60 FPS image for 2 seconds in T7 section and 1.5 FPS image data in T8 section for 1.5 seconds Processed into image data of 80 FPS, and stored in the second storage unit 50.

According to the embodiment of the present invention, when the user reproduces the processed image data stored in the second storage unit 50, the user can check the slow motion video whose number of frames per second is variable during the second reference time after the occurrence of the event have.

Therefore, according to the present invention, even if the user does not edit the photographed image data through the separate editing means, the slow motion video after the occurrence of the event such as the extreme motion sensed by the event occurrence sensing unit 20 There is an effect that it is saved automatically.

FIG. 6 is a schematic diagram showing a method of storing the slow motion moving image by converting the frame number per second of the image data after the occurrence of the event equally.

The image data processing unit 40 processes the first frame per second of the image data into a second frame per second for a second reference time after the occurrence of the event, and the second frame per second is a constant frame number.

According to another embodiment of the present invention, the second reference time is 21 seconds, the number of frames per second is 120, The second frame rate per second is constant. 6 and according to another embodiment of the present invention, the photographing unit 10 photographs an image of the vicinity of the recording apparatus, acquires image data, and stores the acquired image data in the first storing unit 30, 30) is 120 FPS. The event occurrence detecting unit 20 detects a motion value of a recording device exceeding + -2G, which is a preset motion value, as shown in FIG. 8, and if the motion value of the recording device is detected in the T1 interval, The sensing unit 20 senses T1 as an event occurrence time point. The image data processing unit 40 processes the image data of 120 FPS stored in the first storage unit 30 into image data of 40 FPS and the second storage unit 50 processes the image data of 40 FPS And stores the processed image data.

According to another embodiment of the present invention, when the user reproduces the processed image data stored in the second storage unit 50, the user sets the time of occurrence of the event as the number of frames per second You can see a certain slow motion video.

Therefore, according to the present invention, even if the user does not edit the photographed image data through the separate editing means, the slow motion video after the occurrence of the event such as the extreme motion sensed by the event occurrence sensing unit 20 There is an effect that it is saved automatically.

7 is a schematic diagram showing a method of storing a slow motion moving picture when a continuous event occurs.

If the event occurrence detecting unit 20 detects that an event (first event) occurs in the T2 interval of the image data stored in the first storage unit 30 and an event (second event) occurs in the T4 interval, The section of the first storage unit 30 processed by the processing unit 40 overlaps the image data to be processed since T1 to T3 for the event generated at T2 and T3 to T5 for the event generated at T4.

7 and according to an embodiment of the present invention, when another event (second event) occurs within a first reference time when an event (first event) occurs and an image is processed, ) Processes the image data stored in the first storage unit during the first reference time from the time when another event (second event) occurs.

8 is a graph showing a motion value of the recording apparatus with respect to a predetermined motion value of the acceleration sensor.

The event occurrence detection unit 20 detects a motion value of a recording device exceeding a preset motion value of 2 as shown in FIG. 8, and detects a point in time when the motion value of the recording device is detected as an event occurrence time .

9 is a flowchart illustrating a slow motion video recording method according to the present invention.

The slow motion video recording method according to the present invention includes a photographing step (S10) in which the photographing unit 10 photographs an image of the vicinity of the recording apparatus at a frame rate of 30 frames or more per second at a predetermined number of frames per second or more and acquires image data and voice data, An event sensing step (S20) of sensing an event occurrence time of the recording device by the event sensing unit (20), a first storage unit (30) receiving the image data acquired by the photographing unit (S30), receiving the image data stored in the first storage unit (30), detecting a second frame per second lower than the first frame per second in accordance with the occurrence of an event sensed in the event sensing step (S20) The image data processing step S40 of processing the image data and the second storing step S50 of storing the processed image data processed by the second storing unit 50 in the image data processing step.

The event detection step S20 detects an event occurrence time through an acceleration sensor, a video motion change detection unit, a voice data peak detection unit, or a button input detection unit, and when the acceleration sensor detects an event of a predetermined motion value (2G) The time when the motion value is sensed is detected as the event occurrence time.

In the event detection step S20, the video motion change detection unit senses a time point at which a sudden change in motion is sensed over a preset video motion change as an event occurrence time, Sensing the motion change as a sudden change of motion.

In addition, the event detection step (S20) detects when a peak of the voice data detected by the voice data peak detection unit occurs, as an event occurrence time point.

In addition, the event detection step (S20) detects when the button input of the user detected by the button input detection unit occurs, as an event occurrence time.

The image data processing step S40 processes the first frame rate per second for a first reference time before and after the occurrence of the event to a second frame rate per second lower than the first frame rate per second, Is less than or equal to 20 seconds before the event occurs, that is, less than or equal to 40 seconds in total.

The second number of frames per second is a gradually increasing frame number or a constant frame number which is gradually decreased based on the event occurrence time during the first reference time.

The image data processing step S40 processes the frame rate per second to a frame rate per second for a second reference time after the occurrence of the event, wherein the second reference time is 40 seconds Or less.

The second number of frames per second is gradually reduced or gradually increased for the second reference time, or is a constant number of frames.

10: photographing unit 20: event detecting unit
30: First storage unit 40:
50: second storage unit

Claims (20)

A slow motion video recording apparatus comprising:
A photographing unit 10 for photographing an image of the vicinity of the recording apparatus at a predetermined frame rate per second to acquire image data and voice data;
An event detecting unit 20 for detecting an event occurrence time of the recording apparatus;
A first storage unit (30) for storing image data received from the photographing unit;
The image data stored in the first storage unit 30 is received and the image data is stored in a second frame rate lower than the first frame rate in accordance with the occurrence of an event sensed by the event detection unit 20. [ The video data to be processed is studied 40; And
A second storage unit 50 for storing the processed image data inputted from the studying unit 40;
Wherein the slow motion video recording apparatus comprises: The method according to claim 1,
Wherein the event detection unit (20) comprises at least one of an acceleration sensor, an image data motion change detection unit, a voice data peak detection unit, and a button input detection unit. 3. The method of claim 2,
Wherein the event sensing unit (20) senses a time point at which the acceleration sensor senses a motion value of the recording device having a predetermined motion value or more as an event occurrence time point. 3. The method of claim 2,
Wherein the event sensing unit (20) senses a time point at which the video data motion change detection unit senses a sudden change in motion of video data over a preset video motion change as an event occurrence time point. 3. The method of claim 2,
Wherein the event sensing unit (20) senses when a peak of the voice data detected by the voice data peak detecting unit occurs, as an event occurrence time point. 3. The method of claim 2,
Wherein the event detection unit (20) senses when a button input detected by the button input detection unit is generated as an event occurrence time. The method according to claim 1,
Wherein the image data processing unit (40) processes the first number of frames per second of the image data to a second number of frames per second for a first reference time before and after the occurrence of an event. 8. The method of claim 7,
Wherein the second number of frames per second is gradually decreased or gradually increased on the basis of the event occurrence time during the first reference time, or is a constant number of frames. The method according to claim 1,
Wherein the image data processing unit (40) processes the first number of frames per second of the image data to a second number of frames per second for a second reference time after the occurrence of the event. 10. The method of claim 9,
Wherein the second number of frames per second is gradually decreased during the second reference time, and is gradually increased or a predetermined number of frames. In a slow motion video recording method,
A photographing step (S10) of photographing an image of the vicinity of the recording apparatus by the photographing unit (10) with a predetermined frame number per second to acquire image data and voice data;
An event detecting step (S20) of detecting an event occurrence time of the recording apparatus by the event detecting unit (20);
A first storing step (S30) in which the first storage unit (30) receives and stores the image data acquired by the photographing unit (10);
The first storage unit 30 receives the image data stored in the first storage unit 30 and receives the image data at a second frame rate lower than the first frame rate in accordance with the occurrence of an event sensed at the event sensing step S20. Processing the image data to be processed (S40); And
A second storage step (S50) in which the second storage unit (50) stores processed image data processed in the image data processing step;
Wherein the slow motion video recording method comprises: 12. The method of claim 11,
Wherein the event detection step (S20) detects an event occurrence time point through at least one of an acceleration sensor, a video motion change detection unit, a voice data peak detection unit, and a button input detection unit. 13. The method of claim 12,
Wherein the event sensing step (S20) senses a time point at which the acceleration sensor senses a motion value of the recording device over a predetermined motion value as an event occurrence time point. 13. The method of claim 12,
Wherein the event detection step (S20) detects a time point at which the video motion change detection unit senses a sudden motion change over a predetermined video motion change as an event occurrence time. 13. The method of claim 12,
Wherein the event detection step (S20) detects a point in time when a peak of voice data detected by the voice data peak detection unit occurs, as an event occurrence time point. 13. The method of claim 12,
Wherein the event detection step (S20) detects when a button input detected by the button input detection unit is generated as an event occurrence time. 12. The method of claim 11,
Wherein the image data processing step S40 processes the first number of frames per second to a second number of frames per second for a first reference time before and after the occurrence of the event. 18. The method of claim 17,
Wherein the second number of frames per second is gradually decreased or gradually increased on the basis of the event occurrence time during the first reference time, or is a constant number of frames. 12. The method of claim 11,
Wherein the image data processing step S40 processes the first number of frames per second to a second number of frames per second for a second reference time after the occurrence of the event. 20. The method of claim 19,
Wherein the second number of frames per second is gradually decreased during the second reference time, and is gradually increased or a predetermined number of frames.

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