WO2019090699A1 - 一种双镜头智能摄像设备及其摄像方法 - Google Patents

一种双镜头智能摄像设备及其摄像方法 Download PDF

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Publication number
WO2019090699A1
WO2019090699A1 PCT/CN2017/110462 CN2017110462W WO2019090699A1 WO 2019090699 A1 WO2019090699 A1 WO 2019090699A1 CN 2017110462 W CN2017110462 W CN 2017110462W WO 2019090699 A1 WO2019090699 A1 WO 2019090699A1
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Prior art keywords
lens
driving mechanism
camera module
driving
shutter
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PCT/CN2017/110462
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English (en)
French (fr)
Inventor
陈加志
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陈加志
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Priority to CN201780077501.1A priority Critical patent/CN110121881B/zh
Priority to US16/762,650 priority patent/US11184539B2/en
Priority to PCT/CN2017/110462 priority patent/WO2019090699A1/zh
Publication of WO2019090699A1 publication Critical patent/WO2019090699A1/zh

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/16Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/68Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/63Control of cameras or camera modules by using electronic viewfinders
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/665Control of cameras or camera modules involving internal camera communication with the image sensor, e.g. synchronising or multiplexing SSIS control signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/667Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/69Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/695Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/698Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/90Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums

Definitions

  • the present invention relates to the field of image acquisition, and in particular to a dual-lens smart camera device and an image capture method thereof.
  • the types of magnifiers currently on the market include hand-held, bench-top non-intelligent mobile, fixed-focus, fixed-magnification optical devices.
  • the camera device is usually a single-lens device that implements image acquisition.
  • the single lens has a low capture rate for moving objects or low pixel and quality for image acquisition;
  • the present invention provides a dual-lens intelligent camera device and an imaging method thereof, and the technical solution is as follows:
  • the present invention provides a dual-lens smart camera device, including: a first camera module, a second camera module, a shutter, a first driving mechanism, a second driving mechanism, a third driving mechanism, and a controller.
  • the shutter is connected to the second camera module,
  • the first camera module and the second camera module are synchronously rotated horizontally under the driving of the first driving mechanism; and the first camera module and the second camera module are synchronized by the driving of the second driving mechanism Rotating around a horizontal axis; driven by a third driving mechanism, the second camera module independently moves horizontally and / or pitching; the shutter, the first drive mechanism, the second drive mechanism and the third drive mechanism both operate under the control of the controller.
  • the first camera module includes a first lens and a first image sensor
  • the second camera module includes a second lens and a second image sensor
  • the first lens has a larger viewing angle range than the second lens
  • the transmittance of the second lens is greater than that of the first lens
  • the first driving mechanism is horizontal 360 ° Rotatable platform
  • the second drive mechanism is a fixed-axis rotary table
  • the third drive mechanism is a three-dimensional mobile device.
  • the second camera module further includes a gyro sensor for jitter detection.
  • the present invention provides a method for performing imaging using the above-described dual-lens smart camera device, including:
  • the driving of the first driving mechanism, the second driving mechanism, and the third driving mechanism is stopped, and timing is started at the same time until the startup time is reached, and the shutter is activated.
  • the method further includes:
  • the shutter speed is set in accordance with the moving speed of the object.
  • the method further includes:
  • the focus focal length is set according to the distance between the object and the first lens.
  • the third driving mechanism further includes:
  • the triggering the third driving mechanism to drive the movement of the second camera module, so that the target subject is within the field of view of the first lens and the second lens comprises:
  • the third driving mechanism drives the second camera module to rotate the to-be-adjusted angle in a direction close to the target-adjusted optical axis.
  • the method further comprises:
  • the captured image is transmitted to the mobile terminal by wireless or wired communication.
  • the dual-lens camera device is equivalent to an optical magnifier, which is composed of multi-stage lenses and can realize zoom amplification;
  • FIG. 1 is a schematic structural diagram of a dual-lens smart camera device according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for performing imaging by using a dual-lens smart camera device according to an embodiment of the present invention
  • FIG. 3 is a flow chart of a method for setting a first execution order of a shutter and a focal length according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for setting a second execution order of a shutter and a focal length according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of second lens adjustment according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for adjusting a second lens according to an embodiment of the present invention.
  • the reference numerals are: 1-first camera module, 2- second camera module, 3-first drive mechanism, 4- Second drive mechanism, 5-gyro sensor.
  • a dual-lens smart camera device is provided.
  • the first camera module 1 is included.
  • a second camera module 2 a shutter, a first driving mechanism 3, a second driving mechanism 4, a third driving mechanism and a controller, wherein the shutter is connected to the second camera module 2, that is, when the shutter is activated,
  • Second camera module 2 the first camera module 1 includes a first lens and a first image sensor, and the second camera module 2 includes a second lens and a second image sensor.
  • the shooting idea of the embodiment of the present invention is as follows: firstly, using the wide-angle lens wide-angle feature, the moving target object is synchronized and tracked, and then the zoom is utilized. / The characteristics of high pixel and imaging sharpness of the telephoto lens, the target image of the tracked object, that is, the pre-judgment according to the moving direction of the moving object, reaching the designated position in advance in the direction for a certain time, and then waiting for the object to move to The shutter is activated at this point, in summary, the first camera module 1 is a wide-angle camera module, the first lens is a wide-angle lens, and the second camera module 2 a zoom telephoto camera module, wherein the second lens is a zoom telephoto lens, in a preferred embodiment of the invention, the first image sensor and the second image sensor are CCD Sensor, but the present invention does not limit the first image sensor and the second image sensor to the CCD type, except for the CCD, which uses other common image sensors, such as CMOS.
  • the present invention may also be implemented.
  • the size and pixel parameters of the first image sensor and the second image sensor are identical, but may not be a limitation on the embodiments of the present invention.
  • the The range of the first lens has a larger viewing angle than the second lens.
  • the transmittance of the second lens is greater than that of the first lens.
  • the transmittance of the lens is an optical characteristic of the lens. Under normal conditions, the transmittance is larger. The imaging is clearer.
  • the wide-angle characteristic of the first lens is highlighted, which facilitates capturing and tracking synchronization of the target object by using the first lens
  • the second lens highlights its imaging characteristics, which is convenient for utilizing
  • the second lens provides clear imaging of the target subject, and the higher the pixel and resolution of the second image sensor, the sharper the imaging of the target subject.
  • the first camera module 1 and the second camera module 2 are driven by the first driving mechanism 3 Simultaneously rotating horizontally, wherein the first driving mechanism 3 is a horizontal 360° rotatable platform as shown in FIG. 1; the first camera module 1 is driven by the second driving mechanism 4 Rotating around the horizontal axis synchronously with the second camera module 2, wherein the second drive mechanism 4 is a fixed-axis rotary table, and the first camera module 1 and the first drive module are driven by the second drive mechanism 4
  • Two camera module 2 Rotating motion about a horizontal axis, respectively, can be rotated about different horizontal axes.
  • the first camera module 1 and the second camera module 2 Rotating around the same horizontal axis; under the driving of the third driving mechanism, the second camera module 2 independently moves horizontally and / Or a pitching rotation, wherein the third driving mechanism is a three-dimensional moving device, preferably, the third driving mechanism includes at least two driving motors, and the driving motor separately drives the second camera module in different dimensions 2 Rotating, for example, including two motors, one of which drives the movement of the second camera module 2 in a two-dimensional plane, and the other motor drives the second camera module 2
  • the fixed axis scrolling, or including three motors, respectively driving the movement of the second camera module 2 on the X/Y/Z axis, the present invention does not limit the specific structure of the third driving mechanism, as long as the second camera mode can be driven.
  • the technical solution of the present invention can be implemented by moving in a three-dimensional space; the shutter, the first driving mechanism 3, and the second driving mechanism 4 And the third driving mechanism is operated under the control of the controller.
  • the shutter is an electronic shutter, and the shutter is electronically triggered according to a signal command issued by the controller.
  • the second camera module 2 further includes a gyro sensor for jitter detection.
  • the gyro sensor product can detect the movement tendency of the second camera module, compensate the vibration amplitude of the mobile phone, and finally achieve anti-shake and improve the quality of the picture.
  • the dual-lens smart camera device is further provided with a wireless communication module, configured to send the captured image to the mobile terminal by wireless communication, specifically, the wireless Communication module includes WIFI module and / or 3G module.
  • a method for performing imaging using the dual-lens smart camera device described in Embodiment 1 is provided, as shown in FIG. 2 .
  • the method includes the following processes:
  • the first camera module when an object enters the first lens angle range of the first camera module autonomously, or the first camera module captures an object entering the lens during the rotation, it is called acquiring the target object.
  • the target object since it is a moving object, it is necessary to confirm whether the object has moved before determining that the target object is acquired.
  • the moving speed of the object determined in the object is the relative speed of the object, not the absolute speed.
  • To calculate the absolute speed it is necessary to first obtain the distance of the object from the first image sensor, and then the absolute speed of the target object can be calculated. Due to here S12 is prepared for the following steps, and the following driving the first camera module and the second camera module can refer to the relative speed of the object, and therefore, at S12 Only the relative speed can be obtained. Obviously, obtaining the absolute speed can also provide reference and data basis for the first drive mechanism, the second drive mechanism and the third drive mechanism.
  • the driving speed and direction of the first driving mechanism and the second driving mechanism are calculated, and in principle, the target object can be
  • the moving direction and speed of the first image sensor are kept in real time, and the first camera module performs synchronous tracking of the target object.
  • the flight path of the target object is pre-judged, and the result of the pre-judgment is the position of the target object after a certain time, determining that it is the pre-shooting position, and then the third driving mechanism drives the second The camera module reaches the pre-positioning position.
  • the first driving mechanism and the second driving mechanism further drive the first camera module (the second camera module The tracking of the target object is tracked. Therefore, it can be seen that the third driving mechanism reaches the pre-positioning position in advance under the premise of synchronous tracking of the second camera module, that is, when S14 is executed, S13 continues to be executed.
  • the time elapsed from the current position to the pre-take position at the moving speed of the object is calculated as the start-up time of the shutter.
  • the present invention is for S14 and S15
  • the order of execution is not limited.
  • the pre-shooting position may be determined, and the second camera module may be driven to reach the preset position after calculating the startup time.
  • the three driving mechanism actions are stopped, that is, the first camera module and the second camera module are both kept stationary, and timed, and when the starting time is reached, the device starts.
  • Shutter ideally, when the start-up time is reached, the target subject reaches the pre-shot position, preferably, at execution S14 Previously, the third driving mechanism is pre-activated to drive the second camera module to rotate until the target object is located at the center of the second lens, and when the shutter is activated, the target object is located in the second camera module. The center of the lens.
  • S1701 Matching and setting a shutter speed according to the moving speed of the object.
  • the present invention pre-sets a shutter setting rule for the smart camera device to form a moving speed-shutter speed mapping table, by querying the moving speed -
  • the shutter speed map can match the corresponding shutter speed.
  • S1703 Set a focus focal length according to a distance between the object and the first lens.
  • the distance between the object and the first lens is calculated as an existing optical measurement technique, and details are not described herein again.
  • the present invention pre-sets a focus focal length setting rule for a smart camera device to form a distance -
  • the focus mapping table by querying the distance-focus map, after obtaining the distance between the object and the first lens, can match the corresponding focus focal length.
  • Synthesis S1701-S1703, ie at S14 to S16 The shutter speed and the focus focal length are set during execution so that the target subject is imaged at the set shutter speed and the focus focal length immediately upon shutter activation to obtain the best image acquisition result.
  • the execution order of S1701 and S1702 and S1703 is not limited in the present invention, that is, in addition to FIG.
  • the third driving mechanism further includes:
  • the third driving mechanism drives the second camera module to rotate the to-be-adjusted angle in a direction close to the target-adjusted optical axis, so that the second camera of the rotated second camera module includes the target object.
  • the method further includes:
  • Sending the captured image to the mobile terminal by wireless communication including wireless communication mode or 3G, 4G Or 5G communication method.
  • the present invention does not limit the manner in which an image is transmitted to a mobile terminal.
  • the wireless communication method is only a preferred mode, and communication may be performed by wire to transmit image information.

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Abstract

一种双镜头智能摄像设备及其摄像方法,所述摄像设备包括第一摄像模组、第二摄像模组、快门、第一驱动机构、第二驱动机构、第三驱动机构及控制器,所述快门与所述第二摄像模组连接,在第一驱动机构的驱动下,第一摄像模组和第二摄像模组同步作水平转动;在第二驱动机构的驱动下,第一摄像模组和第二摄像模组同步绕水平轴旋转;在第三驱动机构的驱动下,第二摄像模组独立作水平移动和/或俯仰转动;所述快门、第一驱动机构、第二驱动机构和第三驱动机构均在所述控制器的控制下动作。该双镜头智能摄像设备利用广角摄像模组对移动的拍摄目标进行同步和追踪,再利用变焦长焦摄像模组对拍摄目标进行候位拍摄,提高摄像质量。

Description

一种双镜头智能摄像设备及其摄像方法
技术领域
本发明涉及图像采集领域,特别涉及一种双镜头智能摄像设备及其摄像方法。
背景技术
目前市面销售的放大镜类型包括手持式、台式非智能移动的、定焦、固定放大倍率的光学设备。摄像设备通常为单镜头设备,实现图像采集功能。
现有技术至少存在以下缺陷:
a. 单镜头对移动物体的捕捉率低或者对图像采集的像素和质量低;
b. 面对飞行速度超过一定阈值的物体,难以清晰成像。
发明内容
为了解决现有技术的问题,本发明提供了一种双镜头智能摄像设备及其摄像方法,所述技术方案如下:
一方面,本发明提供了一种双镜头智能摄像设备,包括:第一摄像模组、第二摄像模组、快门、第一驱动机构、第二驱动机构、第三驱动机构及控制器,所述快门与所述第二摄像模组连接,
在第一驱动机构的驱动下,所述第一摄像模组和第二摄像模组同步作水平转动;在第二驱动机构的驱动下,所述第一摄像模组和第二摄像模组同步绕水平轴旋转;在第三驱动机构的驱动下,所述第二摄像模组独立作水平移动和 / 或俯仰转动;所述快门、第一驱动机构、第二驱动机构和第三驱动机构均在所述控制器的控制下动作。
进一步地 ,所述第一摄像模组包括第一镜头和第一图像传感器,所述第二摄像模组包括第二镜头和第二图像传感器,所述第一镜头的视角范围大于第二镜头,所述第二镜头的透光率大于第一镜头。
进一步地,所述第一驱动机构为水平 360 °可旋转的平台,所述第二驱动机构为定轴旋转台,所述第三驱动机构为三维移动装置。
进一步地,所述第二摄像模组还包括用于抖动检测的陀螺仪传感器。
另一方面,本发明提供了一种利用上述的双镜头智能摄像设备进行摄像的方法,包括:
获取目标拍摄物体,使目标拍摄物体在第一摄像模组的第一图像传感器上成像;
获取目标拍摄物体在第一图像传感器上单位时间内移动的距离和方向,以确定物体移动速度;
计算第一驱动机构和第二驱动机构的驱动速度和方向,使得在第一驱动机构和第二驱动机构的驱动下,第一摄像模组追踪所述目标拍摄物体;
根据确定的所述物体移动速度,计算第三驱动机构的驱动速度和方向,使得在第三驱动机构的驱动下,第二摄像模组到达预摄位置;
根据所述预摄位置及物体移动速度,计算启动时间;
停止第一驱动机构、第二驱动机构和第三驱动机构的驱动,同时开始计时,直至达到所述启动时间,则启动快门。
进一步地,所述启动快门之前还包括:
根据所述物体移动速度,匹配设置快门速度。
进一步地,所述启动快门之前还包括:
根据第一摄像模组的第一镜头的焦距、光学倍率及第一图像传感器的尺寸及目标拍摄物体在第一图像传感器上成像的尺寸,得到物体与第一镜头之间的距离;
根据所述物体与第一镜头之间的距离,设置对焦焦距。
进一步地,第三驱动机构驱动第二摄像模组之前还包括:
检测所述目标拍摄物体是否同时在第一镜头和第二镜头的视场交叉范围内,若否,则触发第三驱动机构驱动第二摄像模组运动,使目标拍摄物体处于第一镜头和第二镜头的视场交叉范围内。
进一步地,所述触发第三驱动机构驱动第二摄像模组运动,使目标拍摄物体处于第一镜头和第二镜头的视场交叉范围内包括:
选定第一镜头视场与第二镜头视场相交的点作为起点;
选定当前目标拍摄物体在第一镜头视场内的点作为终点;
以起点和终点所在的直线作为目标调节后光轴;
根据第二镜头的当前光轴与所述目标调节后光轴,得到待调节角度;
第三驱动机构驱动第二摄像模组向靠近目标调节后光轴的方向转动所述待调节角度。
进一步地,所述启动快门之后还包括:
通过无线或有线通信方式将拍摄到的图像发送至移动终端。
本发明提供的技术方案带来的有益效果如下:
1)双镜头摄像设备相当于光学放大镜,由多级镜片组成,且能够实现变焦放大;
2)通过跟踪马达实现跟踪目标物体,通过CCD、CMOS或其他图像传感器实现电子成像,通过电子图像可以提取图像特征,识别成像物体;
3)体积小巧,方便制成可穿戴、可移动的光学设备;
4)通过将识别镜头移动至预摄位置,等待物体到达预摄位置即启动快门,清晰成像。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图 1 是本发明实施例提供的双镜头智能摄像设备的结构示意图;
图 2 是本发明实施例提供的利用双镜头智能摄像设备进行摄像的方法流程图;
图 3 是本发明实施例提供的快门、焦距第一执行顺序的设置方法流程图;
图 4 是本发明实施例提供的快门、焦距第二执行顺序的设置方法流程图;
图 5 是本发明实施例提供的第二镜头调整示意图;
图 6 是本发明实施例提供的第二镜头的调整方法流程图。
其中,附图标记为: 1- 第一摄像模组, 2- 第二摄像模组, 3- 第一驱动机构, 4- 第二驱动机构, 5- 陀螺仪传感器。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分的实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本发明保护的范围。
需要说明的是,本发明的说明书和权利要求书及上述附图中的术语'第一'、'第二'等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语'包括'和'具有'以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、装置、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
实施例 1
在本发明的一个实施例中,提供了一种双镜头智能摄像设备,参见图 1 ,包括:第一摄像模组 1 、第二摄像模组 2 、快门、第一驱动机构 3 、第二驱动机构 4 、第三驱动机构及控制器,所述快门与所述第二摄像模组 2 连接,即启动快门时,则第二摄像模组 2 进行拍摄,所述第一摄像模组 1 包括第一镜头和第一图像传感器,所述第二摄像模组 2 包括第二镜头和第二图像传感器。
本发明实施例的拍摄思想如下:先利用广角镜头视角宽泛的特点,对移动的目标拍摄物体进行同步和追踪,再利用变焦 / 长焦镜头的高像素和成像清晰度的特点,对追踪到的物体进行候位拍摄,即根据移动物体的运动方向进行预判,在该方向上提前一定时间到达指定位置,然后等候物体移动到该处则启动快门,综上所述,第一摄像模块 1 为广角摄像模组,所述第一镜头为广角镜头,第二摄像模组 2 为变焦长焦摄像模组,所述第二镜头为变焦长焦镜头,在本发明的一个优选实施例中,所述第一图像传感器和第二图像传感器为 CCD 传感器,但是本发明不将第一图像传感器和第二图像传感器限定为 CCD 类型,除了 CCD ,采用其他常用图像传感器,比如 CMOS 同样可以实现本发明,可选地,所述第一图像传感器与第二图像传感器的尺寸和像素参数一致,但是并不得作为对本发明实施方式的一种限制,作为一个优选的实施例,所述第一镜头的视角范围大于第二镜头,所述第二镜头的透光率大于第一镜头,镜头的透光率为镜头的一种光学特性,在正常情况下,透光率越大,则成像更清晰,在本发明实施例中,凸显的是第一镜头的广角特性,便于利用第一镜头对目标拍摄物体进行捕捉和追踪同步,二第二镜头凸显的是其成像特性,便于利用第二镜头对目标拍摄物体进行清晰成像,并且,第二图像传感器的像素和分辨率越高,所述目标拍摄物体的成像就越清晰。
在第一驱动机构 3 的驱动下,所述第一摄像模组 1 和第二摄像模组 2 同步作水平转动,其中,所述第一驱动机构 3 如图 1 所示,为一个水平 360 °可旋转的平台;在第二驱动机构 4 的驱动下,所述第一摄像模组 1 和第二摄像模组 2 同步绕水平轴旋转,其中,所述第二驱动机构 4 为定轴旋转台,在所述第二驱动机构 4 的驱动下,所述第一摄像模组 1 和第二摄像模组 2 均绕水平轴作旋转运动,可以分别绕不同的水平轴旋转,在优选的一个实施例中,所述第一摄像模组 1 和第二摄像模组 2 绕同一水平轴旋转;在第三驱动机构的驱动下,所述第二摄像模组 2 独立作水平移动和 / 或俯仰转动,其中,所述第三驱动机构为三维移动装置,优选地,所述第三驱动机构至少包括两个驱动马达,驱动马达分别在不同的维度上单独驱动所述第二摄像模组 2 进行转动,比如包括两个马达,其中一个马达驱动第二摄像模组 2 在二维平面的运动,另一个马达驱动第二摄像模组 2 定轴滚动,或者,包括三个马达,分别驱动第二摄像模组 2 在 X/Y/Z 轴上的移动,本发明对第三驱动机构的具体结构不作限定,只要能够驱动第二摄像模组 2 在三维空间内的移动,均可以实现本发明的技术方案;所述快门、第一驱动机构 3 、第二驱动机构 4 和第三驱动机构均在所述控制器的控制下动作,在本发明的实施例中,所述快门为电子快门,根据控制器发出的信号指令对所述快门进行电子触发。
为了实现摄像防抖,优选地,如图 1 所示,所述第二摄像模组 2 还包括用于抖动检测的陀螺仪传感器 5 ,利用陀螺仪传感器产品能够检测出第二摄像模组的运动倾向,补偿手机拍摄时的震动幅度,最终实现防抖,提高拍摄画面质量。
作为另一实施例,在上述实施例的基础上,所述双镜头智能摄像设备还设置有无线通信模块,用于通过无线通信方式将拍摄到的图像发送至移动终端,具体地,所述无线通信模块包括 WIFI 模块和 / 或 3G 模块。
实施例 2
在本发明的一个实施例中,提供了一种利用实施例 1 所述的双镜头智能摄像设备进行摄像的方法,参见图 2 ,所述方法包括以下流程:
S11 、获取目标拍摄物体,使目标拍摄物体在第一摄像模组的第一图像传感器上成像。
具体地,当某一物体自主进入第一摄像模组的第一镜头视角范围内,或者,第一摄像模组在转动过程中捕捉到进入镜头的物体,则称为获取到目标拍摄物体。在本发明的实施例中,由于是拍摄移动物体,所以在确定获取到目标拍摄物体之前,还需要对物体是否发生移动进行确认。
S12 、获取目标拍摄物体在第一图像传感器上单位时间内移动的距离和方向,以确定物体移动速度。
在 S12 中确定的物体移动速度是物体的相对速度,而不是绝对速度,若要计算绝对速度,还需要先得到物体距离第一图像传感器的距离,进而可以计算目标拍摄物体的绝对速度。由于此处 S12 是为了下述步骤而作准备的,而下述的驱动第一摄像模组和第二摄像模组均可以参考物体的相对速度,因此,在 S12 中可以仅仅获取相对速度,显然,获取绝对速度也可以为第一驱动机构、第二驱动机构和第三驱动机构提供参考和数据依据。
S13 、计算第一驱动机构和第二驱动机构的驱动速度和方向,使得在第一驱动机构和第二驱动机构的驱动下,第一摄像模组追踪所述目标拍摄物体。
具体地,根据上述的物体移动速度,即目标拍摄物体在第一图像传感器上的移动方向和速度,计算第一驱动机构和第二驱动机构的驱动速度和方向,原则上可以与目标拍摄物体在第一图像传感器上的移动方向和速度保持实时一致,实现第一摄像模组对所述目标拍摄物体的同步追踪。
S14 、根据确定的所述物体移动速度,计算第三驱动机构的驱动速度和方向,使得在第三驱动机构的驱动下,第二摄像模组到达预摄位置。
具体地,实现同步追踪以后,对目标拍摄物体的飞行轨迹作出预判断,预判断的结果是某一时间后目标拍摄物体所在的位置,确定其为预摄位置,然后第三驱动机构驱动第二摄像模组到达预摄位置。此外,第一驱动机构和第二驱动机构还在驱动第一摄像模组(第二摄像模组 ) 对目标拍摄物体进行追踪同步,因此可以看出,第三驱动机构是在第二摄像模组同步追踪的前提下预先到达预摄位置,即执行 S14 时, S13 继续执行。
S15 、根据所述预摄位置及物体移动速度,计算启动时间。
具体地,计算以所述物体移动速度从当前位置至所述预摄位置经历的时间作为快门的启动时间。
并且,本发明对 S14 与 S15 的先后执行顺序不作限定,除了上述执行顺序,还可以先确定预摄位置、计算启动时间后再驱动第二摄像模组达到预设位置。
S16 、停止第一驱动机构、第二驱动机构和第三驱动机构的驱动,同时开始计时,若达到所述启动时间,则执行 S17 。
S17 、启动快门。
具体地,在第二摄像模组到达预摄位置后停止三个驱动机构动作,即第一摄像模组和第二摄像模组均保持静止,并计时,在达到所述启动时间的瞬间,启动快门,理想地,在达到启动时间时,目标拍摄物体达到预摄位置,优选地,在执行 S14 之前,预调用第三驱动机构动作,使驱动第二摄像模组转动直至所述目标拍摄物体位于第二镜头中心,进而在启动快门时,所述目标拍摄物体位于第二摄像模组的第二镜头的中心。
参见图 3 ,所述 S17 之前还包括:
S1701 、根据所述物体移动速度,匹配设置快门速度。
具体地,本发明为智能摄像设备预设有快门设置规则,形成移动速度 - 快门速度映射表,通过查询所述移动速度 - 快门速度映射表,则可以匹配相应的快门速度。
S1702 、根据第一摄像模组的第一镜头的焦距、光学倍率及第一图像传感器的尺寸及目标拍摄物体在第一图像传感器上成像的尺寸,得到物体与第一镜头之间的距离。
S1703 、根据所述物体与第一镜头之间的距离,设置对焦焦距。
具体地,计算物体与第一镜头之间的距离为现有的光学测量技术,在此不再赘述。同样地,本发明为智能摄像设备预设有对焦焦距设置规则,形成距离 - 对焦映射表,通过查询所述距离 - 对焦映射表,在得到物体与第一镜头之间的距离后,则可以匹配相应的对焦焦距。
综合 S1701-S1703 ,即在 S14 至 S16 的执行期间设置好快门速度和对焦焦距,使得在快门启动时立即以设置好的快门速度和对焦焦距对所述目标拍摄物体进行摄像,以得到效果最佳的图像采集结果。
在本发明中不限定 S1701 与 S1702 和 S1703 的执行次序,即除了图 3 所示的执行顺序,也可以参照图 4 的执行次序,在此不再赘述。
为了确保第二摄像模组能够拍摄到目标拍摄物体,第三驱动机构驱动第二摄像模组之前还包括:
检测所述目标拍摄物体是否同时在第一镜头和第二镜头的视场交叉范围内,若否,则触发第三驱动机构驱动第二摄像模组运动,使目标拍摄物体处于第一镜头和第二镜头的视场交叉范围内;若是,则继续执行 S14-S17 。
如图 5 所示,若目标拍摄物体没有同时在第一镜头和第二镜头的视场交叉范围内,则按照以下方法对第二镜头进行调整,方法流程如图 6 所示:
S1401 、选定第一镜头视场与第二镜头视场相交的点作为起点;
S1402 、选定当前目标拍摄物体在第一镜头视场内的点作为终点;
S1403 、以起点和终点所在的直线作为目标调节后光轴;
S1404 、根据第二镜头的当前光轴与所述目标调节后光轴,得到待调节角度,即图 5 中第一光轴与第二光轴之间的夹角;
S1405 、第三驱动机构驱动第二摄像模组向靠近目标调节后光轴的方向转动所述待调节角度,即可使转动后的第二摄像模组的第二镜头中包含所述目标拍摄物体。
在本发明的另一个实施例中,所述启动快门之后还包括:
通过无线通信方式将拍摄到的图像发送至移动终端,所述无线通信方式包括 WIFI 通信方式或者 3G 、 4G 或者 5G 通信方式。本发明对图像发送至移动终端的方式不作限定,此处无线通信方式只是优选的一种方式,也可以通过有线的方式进行通信以传送图像信息。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种双镜头智能摄像设备,其特征在于,包括:第一摄像模组(1)、第二摄像模组(2)、快门、第一驱动机构(3)、第二驱动机构(4)、第三驱动机构及控制器,所述快门与所述第二摄像模组(2)连接,
    在第一驱动机构(3)的驱动下,所述第一摄像模组(1)和第二摄像模组(2)同步作水平转动;在第二驱动机构(4)的驱动下,所述第一摄像模组(1)和第二摄像模组(2)同步绕水平轴旋转;在第三驱动机构的驱动下,所述第二摄像模组(2)独立作水平移动和/或俯仰转动;所述快门、第一驱动机构(3)、第二驱动机构(4)和第三驱动机构均在所述控制器的控制下动作。
  2. 根据权利要求1所述的摄像设备,其特征在于,所述第一摄像模组(1)包括第一镜头和第一图像传感器,所述第二摄像模组(2)包括第二镜头和第二图像传感器,所述第一镜头的视角范围大于第二镜头,所述第二镜头的透光率大于第一镜头。
  3. 据权利要求1所述的摄像设备,其特征在于,所述第一驱动机构(3)为水平360°可旋转的平台,所述第二驱动机构(4)为定轴旋转台,所述第三驱动机构为三维移动装置。
  4. 根据权利要求1所述的摄像设备,其特征在于,所述第二摄像模组还包括用于抖动检测的陀螺仪传感器(5)。
  5. 一种利用权利要求1-4中任意一项所述的双镜头智能摄像设备进行摄像的方法,其特征在于,包括:
    获取目标拍摄物体,使目标拍摄物体在第一摄像模组的第一图像传感器上成像;
    获取目标拍摄物体在第一图像传感器上单位时间内移动的距离和方向,以确定物体移动速度;
    计算第一驱动机构和第二驱动机构的驱动速度和方向,使得在第一驱动机构和第二驱动机构的驱动下,第一摄像模组追踪所述目标拍摄物体;
    根据确定的所述物体移动速度,计算第三驱动机构的驱动速度和方向,使得在第三驱动机构的驱动下,第二摄像模组到达预摄位置;
    根据所述预摄位置及物体移动速度,计算启动时间;
    停止第一驱动机构、第二驱动机构和第三驱动机构的驱动,同时开始计时,直至达到所述启动时间,则启动快门。
  6. 根据权利要求5所述的方法,其特征在于,所述启动快门之前还包括:
    根据所述物体移动速度,匹配设置快门速度。
  7. 根据权利要求5所述的方法,其特征在于,所述启动快门之前还包括:
    根据第一摄像模组的第一镜头的焦距、光学倍率及第一图像传感器的尺寸及目标拍摄物体在第一图像传感器上成像的尺寸,得到物体与第一镜头之间的距离;
    根据所述物体与第一镜头之间的距离,设置对焦焦距。
  8. 根据权利要求5所述的方法,其特征在于,第三驱动机构驱动第二摄像模组之前还包括:
    检测所述目标拍摄物体是否同时在第一镜头和第二镜头的视场交叉范围内,若否,则触发第三驱动机构驱动第二摄像模组运动,使目标拍摄物体处于第一镜头和第二镜头的视场交叉范围内。
  9. 根据权利要求8所述的方法,其特征在于,所述触发第三驱动机构驱动第二摄像模组运动,使目标拍摄物体处于第一镜头和第二镜头的视场交叉范围内包括:
    选定第一镜头视场与第二镜头视场相交的点作为起点;
    选定当前目标拍摄物体在第一镜头视场内的点作为终点;
    以起点和终点所在的直线作为目标调节后光轴;
    根据第二镜头的当前光轴与所述目标调节后光轴,得到待调节角度;
    第三驱动机构驱动第二摄像模组向靠近目标调节后光轴的方向转动所述待调节角度。
  10. 根据权利要求5所述的方法,其特征在于,所述启动快门之后还包括:
    通过无线或有线通信方式将拍摄到的图像发送至移动终端。
PCT/CN2017/110462 2017-11-10 2017-11-10 一种双镜头智能摄像设备及其摄像方法 WO2019090699A1 (zh)

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