CN216751906U

CN216751906U - Light-resistant tracking system

Info

Publication number: CN216751906U
Application number: CN202220064070.3U
Authority: CN
Inventors: 张雪兵; 张培; 王亚松
Original assignee: Shenzhen Euclideon Technology Co ltd
Current assignee: Shenzhen Euclideon Technology Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-06-14
Anticipated expiration: 2032-01-11

Abstract

The utility model discloses a light-resistant tracking system, and relates to the technical field of tracking; wherein, anti light tracking system includes: the device comprises an infrared transmitting device, a camera device, host equipment and a display device, wherein the infrared transmitting device is used for transmitting an infrared light signal; the camera device is arranged opposite to the infrared emission device, a coated lens is arranged on the camera device, and the camera device is used for extracting a preset wavelength signal in the infrared light signal through the coated lens so as to respond to output parameter data according to the preset wavelength signal; the host equipment is electrically connected with the camera device and used for receiving the parameter data and responding to the output image data; the display device is electrically connected with the host equipment, is arranged close to the camera device and is used for receiving image data and displaying the image data. The anti-light tracking system can stably work under the environment with much natural light by arranging the coated lens, and the tracking performance is improved.

Description

Light-resistant tracking system

Technical Field

The utility model relates to the technical field of tracking, in particular to an anti-light tracking system.

Background

At present, a camera of an anti-light tracking system obtains a gazing position of a user by acquiring infrared light emitted by glasses worn by the user, so that the user can perform screen interface operation without touching a screen. However, such a tracking system is easily interfered by natural light in a room with much natural light, so that the tracking performance is deteriorated, and it is necessary to use the light-resistant tracking system in a dark environment.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the light-resistant tracking system, so that the light-resistant tracking system can stably work under the environment with much natural light, and the tracking performance is improved.

An anti-light tracking system according to an embodiment of the present invention includes:

the infrared transmitting device is used for transmitting an infrared light signal;

the camera device is arranged opposite to the infrared emitting device, a coated lens is arranged on the camera device, and the camera device is used for extracting a preset wavelength signal in the infrared light signal through the coated lens so as to respond to output parameter data according to the preset wavelength signal;

the host equipment is electrically connected with the camera device and is used for receiving the parameter data and responding to output image data;

and the display device is electrically connected with the host equipment, is close to the camera device and is used for receiving the image data and displaying the image data.

The anti-light tracking system according to the embodiment of the utility model has at least the following beneficial effects: the infrared emitting device is used for emitting an infrared light signal, the camera device is used for extracting a preset wavelength signal in the infrared light signal through the coated lens so as to respond to output parameter data according to the preset wavelength signal, the host equipment is used for receiving the parameter data and responding to output image data, and the display device is used for receiving the image data and displaying the image data. The anti-light tracking system can stably work under the environment with much natural light by arranging the coated lens, and the tracking performance is improved.

According to some embodiments of the present invention, the anti-light tracking system further includes a handle, the handle is provided with a key input module, the key input module is in communication connection with the host device, and the key input module is configured to acquire a key input signal and send the key input signal to the host device, so as to control a working mode of the host device.

According to some embodiments of the present invention, the infrared emitting device includes glasses and at least one infrared LED lamp bead, the infrared LED lamp bead is disposed on the glasses, and the infrared LED lamp bead is configured to emit the infrared light signal to the image pickup device.

According to some embodiments of the present invention, the camera device is provided with a fisheye lens, the film-coated lens is disposed in the fisheye lens, and the fisheye lens is used for increasing a shooting angle of view of the camera device.

According to some embodiments of the utility model, the camera device comprises at least one camera, each camera is provided with the fisheye lens, and the camera is arranged close to the display device.

According to some embodiments of the utility model, the anti-light tracking system further comprises a mounting base, wherein the mounting base is provided with a mounting rack corresponding to the camera, the camera is arranged on the corresponding mounting rack, and the mounting base is arranged close to the display device.

According to some embodiments of the utility model, the camera is an active infrared camera.

According to some embodiments of the present invention, the camera is further provided with an FPGA chip, the FPGA chip is electrically connected to the host device, and the FPGA chip is configured to extract a preset wavelength signal from the infrared light signal through the coating lens, so as to output parameter data to the host device according to the preset wavelength signal response.

According to some embodiments of the present invention, the FPGA chip includes a noise reduction module, the noise reduction module is configured to receive the preset wavelength signal to output a noise reduction signal in response, and the FPGA chip is further configured to output the parameter data to the host device according to the noise reduction signal in response.

According to some embodiments of the utility model, the preset wavelength signal is an infrared light signal of 850nm wavelength.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

FIG. 1 is a schematic structural diagram of an anti-light tracking system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an image capturing device and a display device according to an embodiment of the present invention;

FIG. 3 is a detailed schematic view of eyewear in accordance with an embodiment of the present invention;

FIG. 4 is a functional structure diagram of an internal PCBA of the camera according to the embodiment of the present invention;

fig. 5 is a schematic diagram of an image signal processing flow of the PCBA inside the camera according to the embodiment of the present invention.

Reference numerals:

the display device 110, the mounting base 120, the mounting frame 121, the camera 130 and the fisheye lens 131;

glasses 140, infrared LED lamp pearl 141.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, and may be, for example, a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through both elements or indirectly connected through any combination thereof.

In the description of the present invention, unless otherwise specifically limited, terms such as set forth, mounted, connected and the like should be construed broadly, and specific meanings of the above terms in the utility model may be understood in specific instances by those skilled in the art.

At present, a camera of the anti-light tracking system obtains a gazing position of a user by acquiring infrared light emitted by glasses worn by the user, so that the user can perform screen interface operation without touching a screen. However, such a tracking system is easily interfered by natural light in a room with much natural light, so that the tracking performance is deteriorated, and it is necessary to use the light-resistant tracking system in a dark environment.

Therefore, the embodiment of the utility model provides the light-resistant tracking system, so that the light-resistant tracking system can stably work in an environment with much natural light, and the tracking performance is improved.

The embodiments of the present invention will be further explained with reference to the drawings.

Referring to fig. 1, the light-resistant tracking system includes: the infrared transmitting device is used for transmitting an infrared light signal; the camera device is arranged opposite to the infrared emission device, a coated lens is arranged on the camera device, and the camera device is used for extracting a preset wavelength signal in the infrared light signal through the coated lens so as to respond to output parameter data according to the preset wavelength signal; the host equipment is electrically connected with the camera device and used for receiving the parameter data and responding to the output image data; the display device 110 is electrically connected to the host device, the display device 110 is disposed near the camera device, and the display device 110 is configured to receive image data and display the image data. According to the anti-light tracking system, the coated lens is arranged to filter the infrared light signals with the non-preset wavelength in the natural light, the infrared light signals corresponding to the preset wavelength are extracted, namely the preset wavelength signals are extracted, so that the parameter data corresponding to the infrared light signals acquired by the infrared emission device are more accurate, the anti-light tracking system can stably work in the environment with much natural light, and the tracking performance is improved.

In the present embodiment, the image capturing device is disposed above the display device 110; the imaging device may also be placed in other directions of the display device 110 without affecting the capturing of the infrared light signal.

It should be noted that, wireless transmission is adopted between the infrared emission device and the camera device.

It should be noted that the display device 110 in this embodiment is a liquid crystal display, in other embodiments, the display device 110 may also be an LED display, a 3D display, or other displays that display images corresponding to pose data in this embodiment, but is not limited to this embodiment; the display device 110 displays image data corresponding to the parameter data of the infrared emission device and can also display an operation interface; the image data may be a 3D image of a real object, may be a graphic frame, or may be a video, and the embodiment of the present invention is not limited herein.

It should be noted that, the camera device is connected to the host device through an RJ45 interface to realize bidirectional data transmission between the camera device and the host device, where RJ is an abbreviation of Registered Jack and is translated into a Registered socket, and RJ represents an interface of a public telecommunication network; a common interface between the host device and the display device, such as a liquid crystal display, is HDMI or VGA.

In this embodiment, the image pickup device responds to output parameter data to the host apparatus according to a preset wavelength signal, the host apparatus receives the parameter data and acquires pose data of the infrared emission device corresponding to the parameter data, that is, the parameter data corresponds to pose data of the infrared emission device, the host apparatus responds to output image data corresponding to the pose data, for example, 3D image data, to the display device 110 according to the pose data of the infrared emission device, and displays the image data through the display device 110; the pose data comprises position data and state data of the infrared emission device.

It should be noted that the host device may be a laptop computer, a desktop computer, a tablet computer, a mobile device, or a server. The host device may include: a Central Processing Unit (CPU) configured to execute stored instructions, and a memory device storing instructions executable by the CPU. The CPU may be coupled to the memory device by a bus; additionally, the CPU may be a single core processor, a multi-core processor, a computing cluster, or any number of other configurations; further, the host device may include more than one CPU. In this embodiment, the host device further includes a Graphics Processor (GPU) for processing the image data to solve the problem of graphics rendering.

It can be understood that the light-resistant tracking system further comprises a handle, a key input module is arranged on the handle and is in communication connection with the host device, and the key input module is used for acquiring a key input signal and sending the key input signal to the host device so as to control the working mode of the host device. The key input module on the handle and the host equipment realize two-way communication in a communication connection mode, and realize man-machine interaction through the key input module on the handle.

In the embodiment, the button input module on the handle and the host device realize two-way communication in a Bluetooth connection mode; the key input module on the handle and the host device can also communicate bidirectionally through other communication connection modes, and the utility model is not limited to the embodiment.

It should be noted that the key input module on the handle may include a power on/off system key, a confirmation key, a return key, a menu key, a remote sensing confirmation key, a trigger key, a capture key, a rocker, etc., and the handle may also include any key in the key input module or keys with other functions; meanwhile, the handle supports the functions of a confirmation key, a return key, a rocker key, a trigger key touch and the like, and a thumb rest area can also be arranged on the handle.

It can be understood that the infrared emission device includes glasses 140 and at least one infrared LED lamp bead 141, and infrared LED lamp bead 141 is located on glasses 140, and infrared LED lamp bead 141 is used for transmitting infrared light signal for camera device. The wearer views various aspects of the model through the display device 110 by wearing glasses 140 with infrared LED beads 141 while moving around the display device 110.

It should be noted that, referring to fig. 3, by taking an image of a real scene or a real object, the taken image is built into a 3D model and is input into the host device, and when a wearer wears the glasses 140 with the infrared LED lamp beads 141, the wearer moves around the display device 110 while observing each direction of the model through the display device 110; specifically, the camera device extracts a preset wavelength signal from an infrared light signal emitted by the infrared LED lamp bead 141 through the film coated lens, so as to output parameter data according to the preset wavelength signal, the host device receives the parameter data and outputs image data in response, and the display device 110 receives the image data and displays the image data.

In this embodiment, referring to fig. 3, four infrared LED lamp beads 141 are arranged on the glasses 140, and the four infrared LED lamp beads 141 are respectively located on two sides of the frame of the glasses 140; other numbers of infrared LED lamp beads 141 may also be provided, and the more the number of infrared LED lamp beads 141 provided on the glasses 140 is, the more accurate the image displayed on the display device 110 is, without being limited to the embodiment.

It can be understood that the image pickup device is provided with a fisheye lens 131, the film-coated lens is arranged in the fisheye lens 131, and the fisheye lens 131 is used for increasing the shooting angle of view of the image pickup device. Make camera device's shooting visual angle increase through setting up fisheye lens 131, can cover wider scope scene to the infrared light signal that makes camera device extract is more comprehensive, and makes anti light tracer's tracking process convenient and fast more.

The fisheye lens 131 is a wide-angle lens having a front lens with a short diameter, a parabolic shape, and a convex shape toward the front of the lens, and has a very short focal length and a high angle of view of 180 ° or more. Due to the advantage of an ultra-large field angle, the fisheye lens 131 is widely applied to the field of camera shooting such as high-definition motion cameras, unmanned aerial vehicle cameras and panoramic monitoring.

It is understood that the camera device includes at least one camera 130, each camera 130 is provided with a fisheye lens 131, and the camera 130 is disposed near the display device 110. The shooting visual angle of the camera device is increased through the fisheye lens 131 on the camera 130, a wider-range scene can be covered, the infrared light signals emitted by the infrared emitting device are captured through the camera 130, then the infrared light signals with non-preset wavelengths in natural light are filtered through the film coating lens in the fisheye lens 131, preset wavelength signals in the infrared light signals are extracted, and parameter data output by the camera device are more accurate.

In this embodiment, referring to fig. 2, the image capturing device includes four cameras 130, and the four cameras 130 are all located above the display device 110 and located at different positions above the display device 110 respectively; the number of the cameras 130 may be other, the greater the number of the cameras 130, the more comprehensive the captured infrared light signal, and the cameras 130 may be disposed at different positions of the display device 110, which is not limited to the embodiment.

It can be understood that the anti-light tracking system further includes a mounting base 120, a mounting frame 121 corresponding to the camera 130 is disposed on the mounting base 120, the camera 130 is disposed on the corresponding mounting frame 121, and the mounting base 120 is disposed near the display device 110. The camera 130 is fixed close to the display device 110 through the mounting seat 120 and the mounting frame 121, so that the camera 130 can capture infrared light signals emitted by the infrared emitting device.

It is understood that camera 130 is an active infrared camera. An active infrared camera is selected to capture infrared light signals, so that the cost can be reduced.

It can be understood that the camera 130 is further provided with an FPGA chip, the FPGA chip is electrically connected to the host device, and the FPGA chip is configured to extract a preset wavelength signal from the infrared light signal through the coated lens, so as to output parameter data to the host device according to the preset wavelength signal response. The receiving end of the camera 130 is provided with the FPGA chip, the FPGA can perform real-time pipeline operation to achieve the highest real-time performance, preset wavelength signals in the infrared light signals are converted into parameter data through data processing, the parameter data are output to the host equipment in response, the color of an image corresponding to the parameter data is real and clear, the color gamut is wide enough, and the resolution ratio is increased.

It should be noted that, referring to fig. 4, the FPGA is an abbreviation of Field Programmable Gate Array, and is translated into a Field Programmable Gate Array, and the control module in fig. 4 includes an FPGA chip, and specifically, the control module is connected to the storage module, the compression module, the transmission module, the acquisition module, and the conversion module respectively. The storage module is used for reading and temporarily storing data; the compression module is used for compressing and converting video data; the transmission module is an Ethernet interface, namely a network interface; the acquisition module is a lens plate of the machine and is used for acquiring a preset wavelength signal in the infrared light signal; the conversion module is an image sensor and is used for converting the preset wavelength signal in the infrared light signal into a digital signal and sending the digital signal to the control module. It can be understood that the control module obtains the parameter data by performing data processing on the digital signal, and sends the parameter data to the host device through the transmission module. The PCBA is an abbreviation of Printed Circuit Board Assembly, and is a Printed Circuit Board on which components are soldered.

It should be noted that, in video image processing, under the requirement of pursuing higher definition and truer image, the amount of data to be processed is increasing. The main advantages of using the FPGA for image processing are: the FPGA can perform real-time pipeline operation and can achieve the highest real-time performance. In the present invention, the time interval from the camera 130 to the image output is only tens of milliseconds, which requires extremely fast image processing speed and fixed delay, and the FPGA chip used in the present embodiment can respond to the output parameter data in real time according to the preset wavelength signal to meet the requirement.

It can be understood that the FPGA chip includes a noise reduction module, the noise reduction module is configured to receive a preset wavelength signal to output a noise reduction signal in response, and the FPGA chip is further configured to output parameter data to the host device in response to the noise reduction signal.

It should be noted that, referring to fig. 5, fig. 5 is a schematic diagram of an image signal processing flow of the PCBA inside the camera 130, and the image signal processing flow of the PCBA inside the camera 130 is implemented by the control module in fig. 4, that is, by an FPGA chip. The sensor module is connected with the linearization module, the linearization module is connected with the noise reduction module, the noise reduction module is connected with the buffer module, the buffer module is connected with the color correction module, the color correction module is connected with the statistics module, the statistics module is respectively connected with the exposure module and the white balance module, the exposure module is connected with the sensor module, the white balance module is connected with the high dynamic range module, the high dynamic range module is connected with the gamma correction module, the gamma correction module is connected with the superposition module, and the superposition module is connected with the output module. The noise reduction module is DefCor/2D, namely defective pixel correction/2D noise reduction; the buffer module is a high-quality 5x5 De-Bayer module and is used for outputting images in a Bayer format, so that the softness of the images is improved; the statistic module is used for a statistic engine; the exposure module is used for fast and automatic exposure; the white balance module is used for automatic white balance; the high dynamic range module enables the image to be closer to the visual effect in the real environment; the superposition module is used for superposing the images and the characters; the output module is used for outputting the parameter data. The preset wavelength signal in the infrared light signal is subjected to data processing through the set camera 130, and then parameter data is output to the host device.

It will be appreciated that the predetermined wavelength signal is an infrared light signal of 850nm wavelength. And filtering out infrared signals with a wavelength of 850nm in natural light through the film-coated lens, and only extracting the infrared signals with the wavelength of 850 nm.

In the related art, the central wavelength of the infrared distribution that the active infrared camera can receive is 830nm to 950nm, wherein signals with wavelengths of 850nm and 940nm are mainly used, but when the infrared transmitting tube with a wavelength of 940nm is used, the surface of the infrared transmitting tube has no light, the infrared transmitting tube with a wavelength of 940nm has poor sensitivity and smaller transmitting power, and the capturing of the infrared signals by the active infrared camera is not facilitated.

Therefore, in this embodiment, an infrared transmitting tube with a wavelength of 850nm is selected in the infrared transmitting device, and the sensitivity of the same active infrared camera to an infrared signal with a wavelength of 850nm is about ten times better than that of an infrared signal with a wavelength of 940nm, and the transmitting power of the infrared transmitting tube with a wavelength of 850nm is larger, so that the transmitting distance of the infrared signal is longer, and the capturing of the active infrared camera to a preset wavelength signal is more facilitated.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. An anti-light tracking system, comprising:

2. The system of claim 1, further comprising a handle, wherein the handle is provided with a key input module, the key input module is in communication connection with the host device, and the key input module is configured to obtain a key input signal and send the key input signal to the host device to control an operation mode of the host device.

3. The system of claim 1, wherein the infrared emitting device comprises glasses and at least one infrared LED lamp bead, the infrared LED lamp bead is disposed on the glasses, and the infrared LED lamp bead is configured to emit the infrared light signal to the camera device.

4. The system of claim 1, wherein the camera device has a fisheye lens, and the coated lens is disposed in the fisheye lens, the fisheye lens being configured to increase a viewing angle of the camera device.

5. The system of claim 4, wherein the camera device comprises at least one camera, each camera is provided with the fisheye lens, and the camera is disposed close to the display device.

6. The system of claim 5, further comprising a mounting base, wherein the mounting base is provided with a mounting rack corresponding to the camera, the camera is provided on the corresponding mounting rack, and the mounting base is disposed near the display device.

7. The system of claim 6, wherein the camera is an active infrared camera.

8. The system of claim 5, further comprising an FPGA chip disposed on the camera, the FPGA chip being electrically connected to the host device, the FPGA chip being configured to extract a predetermined wavelength signal from the infrared light signal through the coated lens, so as to output parameter data to the host device in response to the predetermined wavelength signal.

9. The system of claim 8, wherein the FPGA chip includes a noise reduction module configured to receive the predetermined wavelength signal in response to output a noise reduction signal, the FPGA chip further configured to output the parameter data to the host device in response to the noise reduction signal.

10. The system of claim 1, wherein the predetermined wavelength signal is an infrared light signal having a wavelength of 850 nm.