Video acquisition method and system based on shooting action

Abstract

The invention relates to a shooting action-based video acquisition method and system. The shooting action-based video acquisition method comprises the following steps of: installing video acquisition equipment and gun aiming equipment; the acceleration value of the gun aiming equipment in the direction of the central axis of the gun barrel and / or the acceleration value of the gun in the direction of the central axis of the gun barrel are / is obtained in real time; according to the acceleration value, judging whether the firearm generates a shooting action or not; and if the firearm is considered to generate the shooting action, automatically triggering a video recording function of video acquisition equipment so as to acquire video data through the video recording function. Whether the firearm shoots or not can be judged based on the acceleration value of the gun aiming device and / or the firearm in the central axis direction of the gun barrel, and the video recording function of the video acquisition device is automatically triggered, so that the user experience is optimized, the product competitiveness is improved, and meanwhile, the possibility of false triggering of the video recording function can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of imaging equipment, and in particular to a video acquisition method and system based on shooting action. Background Art

[0002] In shooting entertainment activities such as hunting, in order to improve user experience, there are technical solutions that use video acquisition equipment to obtain images and video information of shooting targets for users to watch. For example, in the patent with application number 2022227012411 and patent name "A gun-aiming camera", real-time video is taken through a camera; in the patent with application number 2017206505668 and patent name "Entertainment shooting system", the camera module is triggered by a trigger switch set at the trigger to shoot.

[0003] However, in the above-mentioned prior art, the recording and shooting functions can only be realized by the user triggering the control key, trigger switch and other components, and automatic recording, shooting and automatic storage of video data cannot be realized. At the same time, due to the possibility of accidentally touching the control key or trigger switch, the camera function may be turned on when there is no need to shoot, affecting the user experience. Summary of the invention

[0004] The purpose of the present invention is to provide a video acquisition method and system based on shooting action, which can judge whether a shooting action has occurred in a firearm based on the acceleration value of a gun aiming device and / or a firearm in the direction of the central axis of the firearm barrel, and automatically trigger the recording function of a video acquisition device, thereby optimizing the user experience, increasing product competitiveness, and reducing the possibility of false triggering of the recording function.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A method for capturing video based on shooting action is provided, which comprises the following steps:

[0007] Install video acquisition equipment and gun sighting equipment;

[0008] Acquire in real time the acceleration value of the aiming device in the direction of the central axis of the gun barrel, and / or the acceleration value of the gun in the direction of the central axis of the gun barrel;

[0009] Determining whether the firearm generates a shooting action according to the acceleration value;

[0010] If it is considered that the firearm has produced a shooting action, the recording function of the video acquisition device is automatically triggered to collect video data through the recording function.

[0011] Preferably, the video data is video data of an area within the field of view of the gun sighting device, or video data of an area including the field of view of the gun sighting device.

[0012] Preferably, judging whether the firearm generates a shooting action according to the acceleration value comprises the following steps: when the acceleration value in the direction of the central axis of the firearm barrel is ≥ the acceleration threshold, it is considered that the firearm generates a shooting action.

[0013] Preferably, judging whether the firearm generates a shooting action according to the acceleration value comprises the following steps:

[0014] Setting multiple acceleration thresholds, and the multiple acceleration thresholds are different from each other;

[0015] Select a certain acceleration threshold as the trigger judgment threshold;

[0016] When the acceleration value in the direction of the central axis of the gun barrel is ≥ the trigger judgment threshold, it is considered that the gun has generated a shooting action.

[0017] Preferably, the video data includes infrared video data and / or visible light video data.

[0018] Preferably, different acceleration thresholds correspond one-to-one to different trigger sensitivities.

[0019] On the other hand, a video acquisition system based on shooting action is also provided, which includes:

[0020] Video acquisition equipment, used to acquire video data;

[0021] An acceleration sensor, which is used to obtain the acceleration value of the gun aiming device in the direction of the central axis of the gun barrel, and / or the acceleration value of the gun in the direction of the central axis of the gun barrel;

[0022] A judgment unit connected to the acceleration sensor, judging whether the firearm generates a shooting action according to the acceleration value in the direction of the central axis of the firearm barrel, and when the acceleration value in the direction of the central axis of the firearm barrel is greater than or equal to the acceleration threshold, it is considered that the firearm generates a shooting action and generates a trigger signal;

[0023] A control unit is connected to the judgment unit and the video acquisition device, and is used to automatically trigger the video recording function of the video acquisition device according to the trigger signal, so as to acquire video data through the video recording function.

[0024] Preferably, the acceleration sensor includes one or more of a three-axis acceleration sensor and a six-axis acceleration sensor.

[0025] Preferably, the video acquisition device is integrated on the gun aiming device to form an integral structure with the gun aiming device, or is detachably connected to the gun aiming device.

[0026] Preferably, the video acquisition device includes a visible light imaging device and / or an infrared imaging device.

[0027] In summary, the present invention has the following beneficial effects compared with the prior art:

[0028] The present invention only needs to judge whether a shooting action has occurred in the firearm based on the acceleration value of the gun aiming device and / or the firearm in the x-axis direction, and automatically trigger the recording function of the video acquisition device. The user does not need to trigger the recording function by manually triggering buttons, triggers, etc., thereby optimizing the user experience and increasing product competitiveness. At the same time, the acceleration changes caused by slight shaking, shaking and other non-actual shooting actions can be eliminated to reduce the possibility of false triggering of the recording function. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a flow chart of the steps of the video acquisition method based on shooting action in the present invention;

[0030] Figure 2 The acceleration values ​​of the firearm in the x-axis, y-axis, and z-axis directions under the impact force corresponding to 300G. (a), (b), and (c) are the acceleration values ​​in the x-axis, y-axis, and z-axis directions respectively. The ordinate is the acceleration value, and the abscissa is the time, with a unit of 10ms.

[0031] Figure 3 The acceleration values ​​of the firearm in the x-axis, y-axis, and z-axis directions under the impact force corresponding to 500G. (a), (b), and (c) are the acceleration values ​​in the x-axis, y-axis, and z-axis directions respectively. The ordinate is the acceleration value, and the abscissa is the time, with a unit of 10ms.

[0032] Figure 4 The acceleration values ​​of the firearm in the x-axis, y-axis, and z-axis directions under the impact force corresponding to 800G. (a), (b), and (c) are the acceleration values ​​in the x-axis, y-axis, and z-axis directions respectively. The ordinate is the acceleration value, and the abscissa is the time, with a unit of 10ms.

[0033] Figure 5 This is an interface diagram for selecting trigger sensitivity in the present invention;

[0034] Figure 6 It is a structural schematic diagram of the video acquisition system based on shooting action in the present invention. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] Example 1

[0037] like Figure 1 The present embodiment provides a method for capturing video based on shooting action, which comprises the following steps:

[0038] S1. Install a gun sighting device on a firearm. In this embodiment, the gun sighting device includes an infrared gun sighting device. The firearm may be any real firearm or simulated firearm, which can generate shooting actions, such as triggering, loading bullets, and generating recoil and gunshot during shooting;

[0039] and installing a video acquisition device. In this embodiment, the video acquisition device includes a visible light imaging device and / or an infrared imaging device, and the video acquisition device can be integrated with the gun sight device to form an integral structure with the gun sight device, or be detachably connected to the gun sight device, or be installed on other devices, as long as it can acquire video within a specific area;

[0040] S2, obtaining the acceleration value of the aiming device in the x-axis direction and / or the acceleration value of the firearm in the x-axis direction in real time through a detection unit such as an acceleration sensor;

[0041] In this embodiment, the acceleration is generated by the recoil during shooting, or when no shooting action is generated, when the firearm is shaken or swayed by external factors, and the acceleration sensor includes one or more of a three-axis acceleration sensor, a six-axis acceleration sensor, etc.; and because the gun sighting device is installed on the firearm, the acceleration values ​​of the two in all directions (including the x-axis direction) can be considered to be the same;

[0042] Furthermore, the direction of the central axis of the gun barrel is determined as the x-axis direction, the height direction of the gun is determined as the z-axis direction, and the direction perpendicular to the xz plane is the y-axis direction; at the same time, the acceleration sensor can be integrated into the gun sighting device to form an integral structure with the gun sighting device, or be detachably connected to the gun sighting device, or be detachably connected to the gun, or be installed in a position close to the gun, as long as it can obtain acceleration data;

[0043] S3, judging whether the firearm generates a shooting action according to the acceleration value in the x-axis direction;

[0044] And S4, if it is considered that the firearm has generated a shooting action, the recording function of the video acquisition device is automatically triggered to collect video data through the recording function, and the video data is automatically saved at the same time; in this embodiment, the video acquisition device can be integrated into the gun sighting device, or after being detachably connected to the gun sighting device, the field of view of the video acquisition device is the same as the field of view of the gun sighting device, or is larger than the field of view of the gun sighting device, so as to include the field of view of the gun sighting device, thereby, the video data collected by the video acquisition device can be video data of the area within the field of view of the gun sighting device, or video data of the area including the field of view of the gun sighting device, and further, the video data includes infrared video data and / or visible light video data.

[0045] Specifically, in step S3, judging whether the firearm generates a shooting action according to the acceleration value in the x-axis direction includes the following steps:

[0046] When the acceleration value in the x-axis direction obtained in real time is greater than or equal to the acceleration threshold, it is considered that the firearm has generated a shooting action, and the value range of the acceleration threshold is [0.5g, 10g] (g is the acceleration of gravity); the acceleration value in the x-axis direction can be the acceleration value of the gun aiming device in the x-axis direction, or the acceleration value of the firearm in the x-axis direction;

[0047] like Figure 2-4 As shown, the gun sighting device is installed on the firearm, and then the firearm is fixed on the impact test bench, and then the impact force corresponding to 300G, 500G and 800G is applied to the impact test bench respectively to complete the impact test, and the number of impacts is 10 times. During the test, a six-axis acceleration sensor is used to obtain the acceleration values ​​of the firearm in different axial directions in real time. It can be seen that under different impact force conditions, the acceleration peak value in the x-axis direction is the largest, which is about 3.5g, 5.5g, and 5.0g respectively, and the acceleration values ​​in the y-axis and z-axis directions vary slightly;

[0048] Where G = gravitational acceleration g × 10 (g is taken as 9.80m / s 2 ), the impact forces corresponding to 300G, 500G and 800G are the impact forces received by the no-load shock test bench (i.e., the shock test bench without firearms installed) when the acceleration reaches 300G, 500G and 800G respectively.

[0049] It can be seen that when a firearm generates a shooting action, the acceleration change caused by factors such as recoil is mainly reflected in the x-axis direction. Therefore, in this embodiment, it is possible to determine whether the firearm generates a shooting action based only on the acceleration value in the x-axis direction. At the same time, since only the acceleration value in the x-axis direction needs to be considered, and the acceleration values ​​in the y-axis and z-axis directions do not need to be considered, the performance requirements of the control unit such as the main chip used to read the acceleration value can be reduced, the power consumption can be reduced, and the calculation and judgment efficiency can be improved.

[0050] On this basis, when it is determined that a shooting action occurs, the recording function of the video acquisition device is automatically triggered, without the user having to manually trigger the recording function by pressing a button or triggering a trigger, thereby greatly improving the user experience;

[0051] Furthermore, by conducting similar impact tests on different firearms, the corresponding x-axis acceleration peak value can be obtained, and different acceleration thresholds can be set according to the x-axis acceleration peak value to match various types of firearms. At the same time, since the above-mentioned acceleration threshold is determined based on the x-axis acceleration peak value during the actual shooting action of the firearm, it can eliminate the acceleration changes caused by slight shaking, shaking and other non-actual shooting actions, so as to reduce the possibility of false triggering of the recording function, further optimize the user experience, and increase product competitiveness.

[0052] Therefore, in this embodiment, it is only necessary to judge whether a shooting action has occurred in the firearm based on the acceleration value of the gun aiming device and / or the firearm in the x-axis direction, and automatically trigger the recording function of the video acquisition device when it is judged that a shooting action has occurred. There is no need for the user to trigger the recording function by manually triggering buttons, triggers, etc. At the same time, only the acceleration value in the x-axis direction needs to be considered, and there is no need to consider the acceleration values ​​in the y-axis and z-axis directions. Therefore, the performance requirements of control units such as the main chip used to read the acceleration value can be reduced, power consumption can be reduced, and the efficiency of calculation and judgment can be improved.

[0053] Embodiment 2:

[0054] The difference between this embodiment and the first embodiment is that, in step S3, judging whether the firearm generates a shooting action according to the acceleration value in the x-axis direction includes the following steps:

[0055] For the same gun aiming device and / or the same firearm, multiple acceleration thresholds are set, and the multiple acceleration thresholds are different from each other; the value range of each acceleration threshold is [0.5g, 10g];

[0056] Select a certain acceleration threshold as the trigger judgment threshold;

[0057] When the acceleration value in the x-axis direction obtained in real time is ≥ the trigger judgment threshold, it is considered that the firearm has generated a shooting action.

[0058] For example, in this embodiment, several different acceleration thresholds can be set, such as 1.4g, 2.0g, 2.5g, ..., 7.6g, etc., and different acceleration thresholds can be matched one by one with different trigger sensitivities (the trigger sensitivity can be reflected in the form of "gears"), for example, 1.4g, 2.0g, 2.5g correspond to gear 1, gear 2, gear 3, etc., respectively. The lower the gear, the higher the trigger sensitivity, and the easier it is to trigger the recording function;

[0059] Furthermore, the user can select the corresponding trigger sensitivity through the application program, such as Figure 5 The trigger sensitivity (Shooting record sensitivity) selected is 3, and its corresponding acceleration threshold is 2.5g. 2.5g is the trigger judgment threshold. When the acceleration value in the x-axis direction obtained in real time is ≥2.5g, it is considered that the firearm has generated a shooting action, and the recording function is further automatically triggered.

[0060] Since there are many types of firearms or gun sights used by users, it is impossible to configure a single acceleration threshold for each type of firearm or gun sight. Therefore, multiple acceleration thresholds can be set for each firearm or gun sight. When using, the user can directly select the corresponding acceleration threshold as the trigger judgment threshold according to the device type, so as to achieve accurate and automatic triggering of the recording function for different firearms or gun sights, thereby improving the user experience.

[0061] Embodiment 3:

[0062] This embodiment provides a video acquisition system based on shooting action, which can implement the video acquisition method described in embodiment 1 or 2, such as Figure 6 As shown, the video acquisition system includes:

[0063] A video acquisition device 1, which can be integrated into a gun sight device to form an integral structure with the gun sight device, or detachably connected to the gun sight device, and is used to acquire video data in a specific area;

[0064] An acceleration sensor 2, which is used to obtain the acceleration value of the gun aiming device in the x-axis direction and / or the acceleration value of the firearm in the x-axis direction in real time;

[0065] A judgment unit 3, which is connected to the acceleration sensor 2, judges whether the firearm generates a shooting action according to the acceleration value in the x-axis direction, and when the acceleration value in the x-axis direction is greater than or equal to the acceleration threshold, it is considered that the firearm generates a shooting action and generates a trigger signal, and the judgment process is the same as step S3 in embodiment 1 or embodiment 2;

[0066] a control unit 4 connected to the judgment unit 3 and the video acquisition device 1, and configured to automatically trigger the video recording function of the video acquisition device 1 according to the trigger signal, so as to collect video data through the video recording function;

[0067] And the video acquisition device 1 automatically saves the video data at the same time.

[0068] To sum up, the present invention only needs to judge whether a shooting action has occurred in the firearm based on the acceleration value of the gun aiming device and / or the firearm in the x-axis direction, and automatically trigger the recording function of the video acquisition device under the premise of judging that a shooting action has occurred. There is no need for the user to trigger the recording function by manually triggering buttons, triggers, etc., thereby optimizing the user experience and increasing product competitiveness. At the same time, the acceleration changes caused by slight shaking, jitter and other non-actual shooting actions can be eliminated to reduce the possibility of false triggering of the recording function.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A video acquisition method based on shooting action, characterized in that: The steps include: Install video acquisition equipment and gun sighting equipment; Acquire in real time the acceleration value of the aiming device in the direction of the central axis of the gun barrel, and / or the acceleration value of the gun in the direction of the central axis of the gun barrel; Determining whether the firearm generates a shooting action according to the acceleration value; If it is considered that the firearm has produced a shooting action, the recording function of the video acquisition device is automatically triggered to collect video data through the recording function.

2. The video acquisition method according to claim 1, characterized in that: The video data is video data of an area within the field of view of the gun sighting device, or video data of an area including the field of view of the gun sighting device.

3. The video acquisition method according to claim 1, characterized in that: Judging whether a firearm generates a shooting action according to an acceleration value comprises the following steps: when the acceleration value in the direction of the central axis of a firearm barrel is greater than or equal to an acceleration threshold, it is considered that the firearm generates a shooting action.

4. The video acquisition method according to claim 1, characterized in that: Judging whether a firearm generates a shooting action according to the acceleration value includes the following steps: Setting multiple acceleration thresholds, and the multiple acceleration thresholds are different from each other; Select a certain acceleration threshold as the trigger judgment threshold; When the acceleration value in the direction of the central axis of the gun barrel is ≥ the trigger judgment threshold, it is considered that the gun has generated a shooting action.

5. The video acquisition method according to claim 1, characterized in that: The video data includes infrared video data and / or visible light video data.

6. The video acquisition method according to claim 5, characterized in that: Different acceleration thresholds correspond to different trigger sensitivities.

7. A video acquisition system based on shooting action, characterized in that: include: Video acquisition equipment, used to acquire video data; An acceleration sensor, which is used to obtain the acceleration value of the gun aiming device in the direction of the central axis of the gun barrel, and / or the acceleration value of the gun in the direction of the central axis of the gun barrel; A judgment unit connected to the acceleration sensor, judging whether the firearm generates a shooting action according to the acceleration value in the direction of the central axis of the firearm barrel, and when the acceleration value in the direction of the central axis of the firearm barrel is greater than or equal to the acceleration threshold, it is considered that the firearm generates a shooting action and generates a trigger signal; A control unit is connected to the judgment unit and the video acquisition device, and is used to automatically trigger the video recording function of the video acquisition device according to the trigger signal, so as to acquire video data through the video recording function.

8. The video acquisition system according to claim 7, characterized in that: The acceleration sensor includes one or more of a three-axis acceleration sensor and a six-axis acceleration sensor.

9. The video acquisition system according to claim 7, characterized in that: The video acquisition device is integrated on the gun aiming device to form an integral structure with the gun aiming device, or is detachably connected to the gun aiming device.

10. The video acquisition system according to claim 7, characterized in that: The video acquisition device includes a visible light imaging device and / or an infrared imaging device.

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