CN103384308A - Helmet-type shooting device based on laser calibration - Google Patents
Helmet-type shooting device based on laser calibration Download PDFInfo
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- CN103384308A CN103384308A CN2013102760086A CN201310276008A CN103384308A CN 103384308 A CN103384308 A CN 103384308A CN 2013102760086 A CN2013102760086 A CN 2013102760086A CN 201310276008 A CN201310276008 A CN 201310276008A CN 103384308 A CN103384308 A CN 103384308A
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Abstract
The invention discloses a helmet-type shooting device based on laser calibration. The helmet-type shooting device comprises a helmet-type support, wherein a camera, a laser emitter and a power supply are fixed on the helmet-type support. Laser beams emitted by the laser emitter in the helmet-type shooting device can form a light spot on a shooting object in front of a user, the light spot calibrates the position of the shooting object, and the user can accurately position the shooting object by observing the light spot, so that the user can adjust a lens to enable the light spot to coincide with the shooting object on the visual focus according to the position of the light spot while enabling himself or herself to feel comfortable. The helmet-type shooting device utilizes STROBE signals of a CMOS image sensor to drive the laser emitter to work in an intermittent mode through corresponding processing and modulation and can twinkle in field blanking time of image acquisition, so that no light spot exists in the collected video image, and videoing quality is ensured.
Description
Technical field
The invention belongs to the camera technique field, be specifically related to a kind of head mounted image-sensing device based on laser calibration.
Background technology
Camera head of the prior art all is fixedly installed mostly, namely is arranged at a place of relative fixture, as indoor one jiao etc.; If when needing shift scene need to utilize artificial or the mode of remote control is regulated the control The Cloud Terrace, this just makes when scene need to usually be changed or need the close-ups object, and the effect of camera head of the prior art often can not be satisfactory; For example, when a climber wants to take his seen beautiful scene when climbing the mountain when, take out video camera in pocket or in bag, it is very inconvenient holding steadily and pressing shutter, and quite dangerous; Just more difficult when wanting to make a video recording, the climber is mountain-climbing on one side, on one side shooting.
The support that the head mounted image-sensing equipment utilization is worn on user's head carries picture pick-up device, make the user to take easily when not affecting ongoing operation, therefore be specially adapted to the application scenarioss such as medical treatment, outdoor exercises, mobile law enforcement.In some operations or test, need to be to the illumination of making a video recording of some zone; In prior art, hospital is in order to monitor surgical procedure and the data preservation, need to record a video to surgical procedure, can omnidistance reflection surgical procedure and the camera angle of details should follow all the time the sight line of operative doctor, therefore, the head that picture pick-up device is arranged on operative doctor is a more satisfactory scheme, the zone that the head mounted image-sensing mode can observed or perform the operation the doctor easily, and the process when patient's disease symptom or doctor are performed the operation is got off by the shooting real time record.
Because head mounted image-sensing equipment is supported in user's head (usually being worn on eyes top or on every side with support or glasses form) with picture pick-up device, therefore be difficult in the situation that do not affect the user and operate, the modes such as display screen by routine make the user know the reference object position that camera head is being taken.Therefore, present head mounted image-sensing equipment exists and how to make the user know easily the problem of the position of reference object in the situation that do not affect user's work.
Summary of the invention
For the existing above-mentioned technical problem of prior art, the invention provides a kind of head mounted image-sensing device based on laser calibration, can demarcate for the user position of reference object.
A kind of head mounted image-sensing device based on laser calibration comprises the wear-type support, is installed with camera, generating laser and power supply on described wear-type support; Wherein:
Described camera is used for gathering the video image of reference object; Described generating laser is used for to reference object Emission Lasers bundle, to form hot spot on reference object.
Preferably, described laser beam is parallel with the optical axis of camera; Guaranteeing in any shooting distance scope, the hot spot that laser beam forms is positioned on reference object or near reference object all the time.
Preferably, be fixed in after described camera and generating laser are integrated in one on the wear-type support and with the wear-type support and be flexibly connected; To facilitate the user to regulate as required shooting or laser projection direction, be fixedly installed togather due to camera and generating laser simultaneously, the shooting direction with camera is consistent all the time for the direction of the laser beam that therefore generating laser is launched in the process of regulating, direction overlaps with the optic centre of human eye, demarcates with the position to reference object.
Described camera is connected with memory, and described memory is used for the video image that the storage camera collects.
Described generating laser with continuous-mode, intermittent mode or facular model to reference object Emission Lasers bundle; Preferred employing intermittent mode is not so that hot spot can impact user's normal operation and shooting.
After described continuous-mode refers to that generating laser is opened, continue Emission Lasers Shu Zhizhi reflector and close; It is the default default mode of device; After described intermittent mode refers to that generating laser is opened, with predeterminated frequency (for example high frequency or low frequency flicker) Emission Lasers bundle intermittently; After described facular model refers to that generating laser is opened, can be with different spot size Emission Lasers bundles by regulation and control.
But in actual use, due to the unlatching of generating laser, no matter adopt intermittent mode or other patterns, all can hot spot occur at the video image center that gathers, the optics work of interference camera affects the quality of video image; Therefore the present invention solves this technical problem by the following technical solutions:
Described camera adopts cmos image sensor and central processing unit to build, and cmos image sensor is connected with generating laser with central processing unit; Wherein:
Described central processing unit is according to the vertical blanking time in the video image acquisition process, the STROBE(strobe pulse of driving cmos image sensor output) signal works under inter-sync exposed frame control model, and by cmos image sensor, described STROBE signal is carried out pulse-width modulation and pulse polarity and time-delay and control;
Described cmos image sensor is exported the STROBE signal under the control of central processing unit, and utilizes this STROBE signal driver generating laser to work under intermittent mode.
The present invention carries out pulse-width modulation, pulse polarity, time-delay control processing by central processing unit to the STROBE signal, control the operating state of generating laser drive circuit, make the IMAQ sequential of generating laser real work and cmos image sensor carry out strict Synchronization Control, make STROBE signal controlling generating laser be operated in (cmos image sensor does not gather image during this period, just the previous frame video image that collects is transferred to central processing unit by data-interface) in vertical blanking time; After processing like this, there is no the hot spot phenomenon in the video image that collects, guaranteed the quality of video recording.
Described camera and generating laser can be controlled by the starting switch that shares and start, also can by two independently starting switch control respectively startup.
Described generating laser has a plurality of model selections, make the user can be by model selection switching controls generating laser with the pattern of correspondence to reference object Emission Lasers bundle.
Preferably, described generating laser is connected with a controller, described controller is for the storage information of the information about power and the memory that obtain power supply, and cross judgement according to these information exchanges and control generating laser with intermittent mode Emission Lasers bundle, make in device electric weight deficiency or the not enough situation of data space, realize caution by the generating laser high frequency flicker.
Preferably, described controller is connected with loudspeaker, and controller obtains the storage information of information about power and the memory of power supply, and crosses judgement driving sound horn according to these information exchanges; Make in device electric weight deficiency or the not enough situation of data space, realize caution by loudspeaker.
Described wear-type support is worn on user's head, and it comprises ring holder and arc support belt; Wherein, described ring holder is surrounded on user's head surrounding, and it is connected into ring-type successively by front support strap, right support band, rear support band and left support band; Described arc support belt is buckled in the user crown, and the one end is connected with the left support band, and the other end is connected with the right support band; Described camera and generating laser are installed on described front support strap; Described power supply is installed on described rear support band.
The laser beam that in head mounted image-sensing device of the present invention, generating laser sends will form hot spot on the reference object in user the place ahead, this hot spot has been demarcated the position of reference object; The user can accurately position reference object by observing this hot spot, thereby can be under self comfortable posture, makes the reference object of hot spot and visual focus identical according to the position adjustments camera lens of hot spot.The present invention simultaneously utilizes the STROBE signal of cmos image sensor, work under intermittent mode with the driving laser reflector after modulating by respective handling, and glimmer in the vertical blanking time of IMAQ, there is no the hot spot phenomenon in the video image that collects thereby make, guaranteed the quality of video recording.
Description of drawings
Fig. 1 is the structural principle schematic diagram of head mounted image-sensing device of the present invention.
Fig. 2 is the internal build schematic diagram of camera.
Fig. 3 is the pulse schematic diagram of STROBE signal.
Fig. 4 is the drive circuit schematic diagram of generating laser.
Fig. 5 is the sequential schematic diagram of IMAQ and STROBE signal.
Embodiment
In order more specifically to describe the present invention, below in conjunction with the drawings and the specific embodiments, technical scheme of the present invention is elaborated.
As shown in Figure 1, a kind of head mounted image-sensing device based on laser calibration comprises the wear-type support, is installed with camera, generating laser and power supply on the wear-type support; Wherein:
The wear-type support is worn on user's head, and it comprises ring holder and arc support belt; Wherein, ring holder is surrounded on user's head surrounding, and it is connected into ring-type successively by front support strap, right support band, rear support band and left support band; The arc support belt is buckled in the user crown, and the one end is connected with the left support band, and the other end is connected with the right support band.
Camera is used for gathering the image of reference object, and it is installed on the front support strap of wear-type support; Camera comprises camera lens, cmos image sensor and central processing unit, cmos image sensor receives the image data generating via the light of camera lens transmission, cmos image sensor is connected with memory, and the memory stores camera gathers and generates the video image that obtains.
Generating laser is used for to reference object Emission Lasers bundle, forming hot spot on reference object, and guarantees that as far as possible laser beam is parallel with the optical axis direction of camera; In present embodiment, be fixed on front support strap and with front support strap after generating laser and camera are integrated in one and be flexibly connected.
In use, the laser beam that in present embodiment, generating laser sends will form hot spot on the reference object in user the place ahead, and this hot spot has been demarcated the position of reference object; The user can know the position of present reference object by observing this hot spot, thereby can be under self comfortable posture, makes the reference object of hot spot and visual focus identical according to the position adjustments camera lens of hot spot.Generating laser reaches spot the most clearly in 20cm～100cm scope, this scope is corresponding with the depth of field of camera lens.
The laser beam that generating laser sends is parallel with the optical axis of camera, can guarantee in any shooting distance scope, and the hot spot that laser beam forms is positioned on reference object or near reference object all the time.
The integrated rear and wear-type support flexible connection of generating laser and camera, can facilitate the user to regulate as required shooting or laser projection direction, be fixedly installed togather due to camera and generating laser simultaneously, the shooting direction with camera is consistent all the time for the direction of the laser beam that therefore generating laser is launched in the process of regulating, and demarcates with the position to reference object.
Power supply is camera and generating laser power supply, and it is installed on the rear support band of wear-type support; Camera and generating laser are controlled by the starting switch that shares and are started, and during this start switch, camera and generating laser are opened simultaneously.
In present embodiment, generating laser can continuous-mode, intermittent mode or facular model be to reference object Emission Lasers bundle; By the changeable control generating laser of these three model selections with corresponding pattern to reference object Emission Lasers bundle.
After continuous-mode refers to that generating laser is opened, continue Emission Lasers Shu Zhizhi reflector and close, it is the default default mode of device; After intermittent mode refers to that generating laser is opened, with predeterminated frequency Emission Lasers bundle intermittently.
In present embodiment, generating laser also is connected with a controller, controller is connected with loudspeaker, and this controller is used for obtaining the storage information of information about power and the memory of power supply, and crosses judgement according to these information exchanges and control generating laser with intermittent mode Emission Lasers bundle; Residual memory space not enough (less than predetermined threshold value) when power supply dump energy deficiency or memory, controller is controlled the generating laser high frequency flicker with as warning, realize sound and light alarm by driving loudspeaker simultaneously, the user can be known this information state by the color change of observing laser beam thus.
In present embodiment, the operating voltage of generating laser is DC-3V, operating current≤50mA, and power output is about 2mW.Yet in actual use, because generating laser is opened, no matter it is operated in intermittent mode or other patterns, all can hot spot occur in the picture centre that gathers, affect the quality of video image.In order to address this problem, the camera of present embodiment adopts cmos image sensor and central processing unit to build, as shown in Figure 2; Cmos image sensor is connected with generating laser with central processing unit, wherein:
Central processing unit is according to the vertical blanking time in the video image acquisition process, the STROBE signal that drives cmos image sensor output works under inter-sync exposed frame control model, and by cmos image sensor, the STROBE signal is carried out pulse-width modulation and pulse polarity and time-delay and control;
Cmos image sensor is exported the STROBE signal under the control of central processing unit, and utilizes this STROBE signal driver generating laser to work under intermittent mode.It is the CMOS image chip of OV5642 that the present embodiment cmos image sensor adopts model, the STROBE signal of its output has six kinds of control model: Xenon, LED1, LED2, four kinds of work photoflash lamp control models of LED3 and inter-sync, outer synchronous two kinds of exposed frame control models as the control signal of photoflash lamp.The STROBE signal can carry out programming Control, and pulse polarity, fast gate delay, time for exposure etc. all can modulate, and its pulse sequence as shown in Figure 3.
Present embodiment is carried out pulse-width modulation, pulse polarity, time-delay control processing by central processing unit to the STROBE signal, control the operating state (as shown in Figure 4) of generating laser drive circuit, make the IMAQ sequential of generating laser real work and cmos image sensor carry out strict Synchronization Control (as shown in Figure 5), make STROBE signal controlling generating laser be operated in (cmos image sensor does not gather image during this period, just the previous frame video image that collects is transferred to central processing unit by data-interface) in vertical blanking time; After processing like this, there is no the hot spot phenomenon in the video image that collects, guaranteed the quality of video recording.
Claims (9)
1. the head mounted image-sensing device based on laser calibration, comprise the wear-type support; It is characterized in that: be installed with camera, generating laser and power supply on described wear-type support; Wherein:
Described camera is used for gathering the video image of reference object; Described generating laser is used for to reference object Emission Lasers bundle, to form hot spot on reference object.
2. head mounted image-sensing device according to claim 1, it is characterized in that: described laser beam is parallel with the optical axis of camera.
3. head mounted image-sensing device according to claim 1 is characterized in that: be fixed in after described camera and generating laser are integrated in one on the wear-type support and with the wear-type support and be flexibly connected.
4. head mounted image-sensing device according to claim 1, it is characterized in that: described camera is connected with memory, and described memory is used for the video image that the storage camera collects.
5. head mounted image-sensing device according to claim 1 is characterized in that: described generating laser with intermittent mode to reference object Emission Lasers bundle.
6. head mounted image-sensing device according to claim 5 is characterized in that: described camera adopts cmos image sensor and central processing unit to build, and cmos image sensor is connected with generating laser with central processing unit; Wherein:
Described central processing unit is according to the vertical blanking time in the video image acquisition process, the STROBE signal that drives cmos image sensor output works under inter-sync exposed frame control model, and by cmos image sensor, described STROBE signal is carried out pulse-width modulation and pulse polarity and time-delay and control;
Described cmos image sensor is exported the STROBE signal under the control of central processing unit, and utilizes this STROBE signal driver generating laser to work under intermittent mode.
7. head mounted image-sensing device according to claim 4, it is characterized in that: described generating laser is connected with a controller, described controller is used for obtaining the storage information of information about power and the memory of power supply, and crosses judgement according to these information exchanges and control generating laser with intermittent mode Emission Lasers bundle.
8. head mounted image-sensing device according to claim 7, it is characterized in that: described controller is connected with loudspeaker, and controller obtains the storage information of information about power and the memory of power supply, and crosses judgement according to these information exchanges and drive sound horn.
9. head mounted image-sensing device according to claim 1, it is characterized in that: described wear-type support is worn on user's head, and it comprises ring holder and arc support belt; Wherein, described ring holder is surrounded on user's head surrounding, and it is connected into ring-type successively by front support strap, right support band, rear support band and left support band; Described arc support belt is buckled in the user crown, and the one end is connected with the left support band, and the other end is connected with the right support band; Described camera and generating laser are installed on described front support strap; Described power supply is installed on described rear support band.
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| CN2013102760086A CN103384308A (en) | 2013-07-01 | 2013-07-01 | Helmet-type shooting device based on laser calibration |
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| CN2013102760086A CN103384308A (en) | 2013-07-01 | 2013-07-01 | Helmet-type shooting device based on laser calibration |
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| CN104352243A (en) * | 2014-11-26 | 2015-02-18 | 首都医科大学附属北京朝阳医院 | Monitoring system and monitoring method for measuring sound source positioning capability |
| CN106791469A (en) * | 2016-12-28 | 2017-05-31 | 东软集团股份有限公司 | The processing method and processing device of view data |
| WO2018000304A1 (en) * | 2016-06-30 | 2018-01-04 | 深圳市柔宇科技有限公司 | Method for adjusting angle of shooting module element and head-mounted display device |
| CN108332948A (en) * | 2018-01-17 | 2018-07-27 | 深圳市绚视科技有限公司 | The detecting system and detection method of equipment to be checked |
| CN108416238A (en) * | 2018-01-31 | 2018-08-17 | 深圳盈达信息科技有限公司 | A kind of laser scanning module and its method for shielding Laser interferometers |
| WO2019169516A1 (en) * | 2018-03-04 | 2019-09-12 | 深圳盈达信息科技有限公司 | Laser scanning module and laser interference shielding method thereof |
| CN111083332A (en) * | 2019-12-30 | 2020-04-28 | 科沃斯机器人股份有限公司 | Structured light module, autonomous mobile device and light source distinguishing method |
| CN111445736A (en) * | 2020-04-01 | 2020-07-24 | 吉林大学 | Optical interactive system in chamber mirror teaching is with wear-type art |
| CN111741226A (en) * | 2020-06-18 | 2020-10-02 | 杭州海康汽车软件有限公司 | Method and device for controlling camera and warning lamp and vehicle |
| CN111818272A (en) * | 2020-06-30 | 2020-10-23 | 浙江大华技术股份有限公司 | Method for eliminating image flicker, electronic device and storage medium |
| CN111818271A (en) * | 2020-06-30 | 2020-10-23 | 浙江大华技术股份有限公司 | Method for eliminating image flicker, electronic device and storage medium |
| CN113873101A (en) * | 2020-06-30 | 2021-12-31 | 浙江大华技术股份有限公司 | Control method and device of warning lamp, storage medium and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104352243A (en) * | 2014-11-26 | 2015-02-18 | 首都医科大学附属北京朝阳医院 | Monitoring system and monitoring method for measuring sound source positioning capability |
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| CN111741226A (en) * | 2020-06-18 | 2020-10-02 | 杭州海康汽车软件有限公司 | Method and device for controlling camera and warning lamp and vehicle |
| CN111818272A (en) * | 2020-06-30 | 2020-10-23 | 浙江大华技术股份有限公司 | Method for eliminating image flicker, electronic device and storage medium |
| CN111818271A (en) * | 2020-06-30 | 2020-10-23 | 浙江大华技术股份有限公司 | Method for eliminating image flicker, electronic device and storage medium |
| CN111818272B (en) * | 2020-06-30 | 2021-09-03 | 浙江大华技术股份有限公司 | Method for eliminating image flicker, electronic device and storage medium |
| CN111818271B (en) * | 2020-06-30 | 2021-09-03 | 浙江大华技术股份有限公司 | Method for eliminating image flicker, electronic device and storage medium |
| CN113873101A (en) * | 2020-06-30 | 2021-12-31 | 浙江大华技术股份有限公司 | Control method and device of warning lamp, storage medium and electronic device |
| CN113873101B (en) * | 2020-06-30 | 2023-07-18 | 浙江大华技术股份有限公司 | Method and device for controlling warning lamp, storage medium and electronic device |
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