CN208754392U - A kind of three lens camera and the education recorded broadcast device with it - Google Patents
A kind of three lens camera and the education recorded broadcast device with it Download PDFInfo
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- CN208754392U CN208754392U CN201821458274.5U CN201821458274U CN208754392U CN 208754392 U CN208754392 U CN 208754392U CN 201821458274 U CN201821458274 U CN 201821458274U CN 208754392 U CN208754392 U CN 208754392U
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Abstract
The utility model discloses a kind of three lens cameras and with its education recorded broadcast device.Three lens camera includes: shell and is arranged in the intracorporal left eyepiece head unit (1) of the shell, right eyepiece head unit (2) and middle eyepiece head unit (3), the left eyepiece head unit (1), right eyepiece head unit (2) is parallel with the optical axis of middle eyepiece head unit (3), resolution ratio of the resolution ratio of the imaging sensor of the left eyepiece head unit (1) and right eyepiece head unit (2) lower than the imaging sensor of middle eyepiece head unit (3), left eyepiece head unit (1) is identical with the resolution ratio of imaging sensor of right eyepiece head unit (2).Three lens cameras of the utility model obtain depth map with left and right eyepiece head unit, high-precision middle eyepiece head unit be can use to provide high precision image to realize close up fragmentary function, and left and right eyepiece head unit and middle eyepiece head unit are arranged in a video camera, simple installation, the adjustment between especially each lens unit are extremely convenient.
Description
Technical field
The utility model relates to technical field of video monitoring, more particularly to a kind of three lens cameras.The present invention relates to views
Frequency monitors and automates automation instructor in broadcasting's picture of instructor in broadcasting field more particularly to a kind of detection different target behavior and quick response
Switching method.
Background technique
Existing classroom recording and broadcasting system needs to obtain depth map to carry out close up fragmentary.Thus, it usually needs in classroom
Multiple video cameras are assumed at multiple positions.In this way, a fine work recorded broadcast classroom, needs to cover expensive equipment more, it is at high cost, and ring
Answer speed slow, in addition, time-consuming with adjustment for multiple cameras installation.
Thus, it is desirable to have a kind of technical solution come overcome or at least mitigate in the drawbacks described above of the prior art at least one
It is a.
Utility model content
Multiple video cameras of the prior art are replaced, the purpose of this utility model is to provide a kind of three lens cameras with drop
Low cost simultaneously greatly shortens installation and adjustment time.
The purpose of this utility model, which also resides in, provides a kind of education recorded broadcast device based on three lens cameras, thus to reduce
At the original function of realizing education recorded broadcast device.
To achieve the above object, the utility model provides a kind of three lens cameras, three lens camera include: shell and
It is arranged in the intracorporal left eyepiece head unit of the shell, right eyepiece head unit and middle eyepiece head unit, the left eyepiece head unit, the right side
Eyepiece head unit is parallel with the optical axis of middle eyepiece head unit, the imaging sensor of the left eyepiece head unit and right eyepiece head unit
Resolution ratio lower than middle eyepiece head unit imaging sensor resolution ratio, the image of left eyepiece head unit and right eyepiece head unit
The resolution ratio of sensor is identical.
Preferably, the camera lens of the left eyepiece head unit, right eyepiece head unit and middle eyepiece head unit uses same saturating
Mirror, aperture and target surface parameter.
Preferably, the left eyepiece head unit and right eyepiece head unit use the imaging sensor of 200w pixel；Middle eyepiece
Head unit uses the imaging sensor of 800w or 1600W pixel.
Preferably, the left eyepiece head unit, right eyepiece head unit and middle eyepiece head unit are by Accurate Calibration, and the three of acquisition
A video visual field angular difference level is not higher than 3 °, is vertically not higher than 1 °.
Preferably, the left eyepiece head unit, right eyepiece head unit and middle eyepiece head unit are in same level, described
Distance is more than or equal to 10cm between left eyepiece head unit, right eyepiece head unit.
Preferably, the left eyepiece head unit, right eyepiece head unit and middle eyepiece head unit are in same level, described
Distance is equal to 12cm between left eyepiece head unit, right eyepiece head unit.
Preferably, three lens camera further include: the first video frequency processing chip, the second video frequency processing chip and intelligence point
Chip is analysed,
First video frequency processing chip has two-path video input interface, connects with left eyepiece head unit and right eyepiece head unit
It connects, receives the two-way low-resolution video from left eyepiece head unit and right eyepiece head unit, and to two-way low-resolution video
It is handled to generate depth map, and depth map and any road low-resolution video are conveyed to intellectual analysis chip；
Intellectual analysis chip is connect with the first video frequency processing chip, is carried out behavioural analysis to video and is determined whether to set
The coordinate that the behavior and behavior of type occur, and the result of behavioural analysis is delivered to second video frequency processing chip；
Second video frequency processing chip has two-path video input interface, and video input interface and middle eyepiece head unit connect all the way
Connect with receive all the way high-resolution video, another way video input interface connect with the first video frequency processing chip, with reception and it is defeated
Low-resolution video all the way out, and/or make from the local content intercepted in high-resolution video from the coordinate that behavior occurs
For feature output.
Preferably, the resolution ratio of the specific region video intercepted from the high-resolution video is regarded equal to the low resolution
The resolution ratio of frequency.
Preferably, first video frequency processing chip controls left eyepiece head unit using same parameter and control logic
With right eyepiece head unit.
The utility model also provides a kind of automation education recorded broadcast device, and the automation education recorded broadcast device includes camera shooting
Machine, display and studio equipment, the studio equipment are connect with the video camera, and the signal that video camera exports is exported to aobvious
Show and shown on device, wherein the video camera is three lens camera as described above.
Preferably, the quantity of the video camera is two, camera shooting machine testing dais region, another camera shooting machine testing
Student's seating area.
Three lens cameras of the utility model obtain depth map with left and right eyepiece head unit, can use high-precision
Middle eyepiece head unit provides high precision image to realize close up fragmentary function, and left and right eyepiece head unit and middle ocular head
Unit is arranged in a video camera, simple installation, and the adjustment between especially each lens unit is extremely convenient.
Detailed description of the invention
Fig. 1 is the schematic block diagram according to three lens cameras of an embodiment of the present invention.
Fig. 2 is the schematic outline drawing according to three lens cameras of an embodiment of the present invention.
Appended drawing reference:
| 1 | Left eyepiece head unit | 5 | Intellectual analysis chip |
| 2 | Right eyepiece head unit | 6 | Second video frequency processing chip |
| 3 | Middle eyepiece head unit | 7 | Studio equipment |
| 4 | First video frequency processing chip | 8 | Display |
Specific embodiment
In the accompanying drawings, same or similar element is indicated using same or similar label or there is same or like function
Element.The embodiments of the present invention are described in detail with reference to the accompanying drawing.
Term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " perpendicular in the description of the present invention,
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is orientation based on the figure or position
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as to scope of protection of the utility model
Limitation.
As depicted in figs. 1 and 2, three lens cameras of the utility model include: left eyepiece head unit 1, right eyepiece head unit 2
With middle eyepiece head unit 3.Left eyepiece head unit 1, right eyepiece head unit 2 and the arrangement of middle 3 general horizontal of eyepiece head unit, left eyepiece
Head unit 1 is located at left side, and right eyepiece head unit 2 is located at right side, and middle eyepiece head unit 3 is located at left eyepiece head unit 1 and right eyepiece
Between head unit 2.
Each lens unit mainly includes camera lens (being made of one or more lens) and imaging sensor.Left ocular head list
Resolution ratio of the resolution ratio of the imaging sensor of member 1 and right eyepiece head unit 2 lower than the imaging sensor of middle eyepiece head unit 3.
That is, respectively low-resolution video, middle eyepiece head unit 3 are defeated all the way for output for left eyepiece head unit 1 and right eyepiece head unit 2
High-resolution video all the way out.
Referring to fig. 2 for example, left eyepiece head unit 1 and right eyepiece head unit 2 use the imaging sensor of 200w pixel；In and
Eyepiece head unit uses the imaging sensor of 800w or 1600W pixel.More specifically, left eyepiece head unit 1 and right ocular head list
The imaging sensor of member 2 uses Sony IMX290 chip, and Sony IMX290 chip is the imaging sensor of 200W pixel.In
The imaging sensor of eyepiece head unit 3 uses OS-08 chip, and OS-08 microarray biochip is the imaging sensor of 1600W pixel.In
The imaging sensor of eyepiece head unit 3 uses the sensor of 800W pixel, and a kind of preferable selection.
It is understood that the imaging sensor of left eyepiece head unit 1, right eyepiece head unit 2 and middle eyepiece head unit 3
Concrete specification and pixel are not limited to above-mentioned specific embodiment.As long as the high resolution of the imaging sensor of middle eyepiece head unit 3
In the resolution ratio of left eyepiece head unit 1 and the imaging sensor of right eyepiece head unit 2.Advantageously, middle eyepiece head unit 3
The resolution ratio of imaging sensor be two times of resolution ratio of imaging sensor of left eyepiece head unit 1 and right eyepiece head unit 2
Or it is bigger.For example, being 4 times, 6 times, 8 times etc..It should further be appreciated that the resolution ratio of the imaging sensor of middle eyepiece head unit 3 is left
Two n times side of the resolution ratio of the imaging sensor of eyepiece head unit 1 and right eyepiece head unit 2 times.
Preferably, the left eyepiece head unit 1, right eyepiece head unit 2 and middle eyepiece head unit 3 are in same level,
Distance is more than or equal to 10cm between the left eyepiece head unit 1, right eyepiece head unit 2.In one alternate embodiment, the left side
Eyepiece head unit 1, right eyepiece head unit 2 and middle eyepiece head unit 3 are in same level, the left eyepiece head unit 1, the right side
Distance is equal to 12cm between eyepiece head unit 2.
To be conducive to preferably form binocular stereo vision, parallax is calculated using technique of binocular stereoscopic vision.Binocular
Stereovision technique is the vision system for imitating human eye, by two video cameras (the i.e. left eyepiece head unit for obtaining different location
1, right eyepiece head unit 2) shooting target image, calculate target parallax in the picture.And then obtain depth map.Depth map is
The image of target range distance in scene is reacted, each pixel value in depth map represents in scene between certain point and video camera
Distance.To, the above-mentioned distance between the mesh of left and right is arranged, can be under more compact whole video camera size, good shape
At binocular stereo vision.
That is, the left and right mesh for being used to form depth map provides biggish interval on both sides, it is suitable for obtaining stereopsis
Feel.In addition, middle mesh is placed on centre, it is advantageously ensured that the visual field deviation of three is smaller.
In one alternate embodiment, the camera lens of the left eyepiece head unit, right eyepiece head unit and middle eyepiece head unit
Use same lens, aperture and target surface parameter.This is conducive to the calculating and processing of depth map.
Advantageously, the left eyepiece head unit, right eyepiece head unit and middle eyepiece head unit 3 are by Accurate Calibration, acquisition
Three video visual field angular difference levels be not higher than 3 °, it is vertical to be not higher than 1 °.This is equally beneficial for the calculating and processing of depth map.This
Outside, reject nonoverlapping part in the visual field of three sensors with advantageously reducing.
Referring to Fig. 1, three lens cameras of the utility model include two video frequency processing chips and an intellectual analysis chip,
That is the first video frequency processing chip 4, intellectual analysis chip 5 and the second video frequency processing chip 6.
Due to using 3 lens units, three road videos of output, and conventional video frequency processing chip usually only two-way regards
Frequency inputs, and therefore, three lens cameras of the utility model use two video frequency processing chips.Thus it avoids using dedicated core
Piece reduces cost.First video frequency processing chip 4 is Movidius M2450, belongs to middle performance GPU.Second video frequency processing chip
6 think 3519 using sea, belong to high-performance main control device.It additionally uses a high-performance GPU and is used as intellectual analysis chip 5,
Specially use NVIDIA Tegra x1 chip.
First video frequency processing chip 4 is connect with left eyepiece head unit 1 and right eyepiece head unit 2.First video frequency processing chip 4
Receive the two-way low-resolution video from left eyepiece head unit 1 and right eyepiece head unit 2, and to two-way low-resolution video into
Row processing is to generate depth map.First video frequency processing chip 4 is connect with intellectual analysis chip 5, and depth map and any road is low
Resolution video is conveyed to intellectual analysis chip 5.
First video frequency processing chip 4 is also connect with the second video frequency processing chip 6, and two-way low-resolution video is carried out
The second video frequency processing chip 6 is delivered to after splicing.It should be pointed out that directly will can also pass through all the way the first video handles core
The processed low-resolution video of piece 4 is delivered to the second video frequency processing chip 6.It is processed by the first video frequency processing chip 4
Low-resolution video, " processing " herein are primarily referred to as the first video frequency processing chip 4 to from left eyepiece head unit 1, right eyepiece
The low-resolution video of head unit 2 has carried out ISP processing etc., thus, the second video frequency processing chip 6 no longer needs to carry out duplicate place
Reason, is conducive to improve efficiency.
Intellectual analysis chip 5 is connect with the first video frequency processing chip 4, receives the depth map and low resolution regards all the way
Frequently, and by the result that based on the depth map and all the way low-resolution video carries out behavioural analysis it is delivered to second video
Handle chip 6.The result of the behavioural analysis for example, the position of certain events and the event has occurred.The thing
The position of part can be indicated with the center of relevant range.In one example, the result of behavioural analysis are as follows: student has occurred
The center of the event stood up, relevant range is (150,150), and the center is it is also assumed that be the seat at object center
Mark.
Behavioural analysis, the not instead of inventive point of the utility model how are specifically carried out, can be used in the prior art
Any analysis method appropriate having.It (arrives at a station from sitting down for example, can determine whether that student has occurred using method to stand up
It is vertical) event.For generally, intellectual analysis chip 5 is combined according to depth map information and video information, the two, comprehensive using deep
Degree figure and video sequence analysis technology, complete the behavioural analysis result of personage in visual field.
Student stands up behavioral value:
Intellectual analysis chip 5 is checked by the depth map information obtained highly more than the target of threshold values in visual field, for true
Surely there is object to be in and stand (establishing state)；By video sequence analysis technology, judge whether to be student to stand from sitting down to；It is logical
Head and shoulder detection technique and human body recognition technology are crossed, judges whether the object stood is human body.When having in visual field and only 1 student
When target is stood up, equipment master control core completes the feature output of student's target proximity.
Teacher's behaviors detection:
Intellectual analysis chip 5 is checked in visual field by the depth map information obtained highly more than the target of threshold values；Pass through view
Frequency sequence analytical technology judges whether there is object and is walking up and down；By head and shoulder detection technique and human body recognition technology, judge to stand
Whether vertical object is human body.When judge there are personnel to walk about in visual field, coordinate of the personnel in visual field, equipment master control core are obtained
The heart completes the amplification output of video around target, achievees the purpose that teacher is followed to walk about.
Teacher's writing on the blackboard detection:
Intellectual analysis chip 5 is checked in visual field by the depth map information of acquisition highly more than the target of threshold values；Pass through
Video sequence analysis technology judges whether that someone is detained in smaller range；By head and shoulder detection technique and human body recognition technology,
Judge whether the object being detained is human body；By Video Analysis Technology, judges to be detained human body and whether write behavior, pass through simultaneously
It is detained human body picture variation (font left) nearby and the variation of preset blackboard range picture, auxiliary judgment teacher, which exists, to write
Behavior.After judging that visual field has writing on the blackboard behavior, writing on the blackboard coordinate information is obtained, video puts around equipment master control core completion target
Big output reaches amplification teacher's writing on the blackboard.
When carrying out behavioral value, the relative position of calibration for cameras is needed, calculation basis is provided.Three mesh of the utility model are taken the photograph
Camera provides following three kinds of calibration modes for users to use.
Calibration manually, user input equipment height, inclination angle, pitch angle；Equipment is internally integrated accelerograph simultaneously, can mention
For inclination angle and pitch angle reference value.
Automatic Calibration, user select the ground grading of larger area, and as the reference screen of 0 height, equipment is flat with 0 height
On the basis of face, the anti-relative position for pushing away equipment calculates device height, inclination angle, pitch angle.
Intelligent Calibration, equipment automatically select large-scale plane as 0 elevation references face, calculate the height of equipment, incline
Oblique angle, pitch angle.
Second video frequency processing chip 6 has two-path video input interface.Video input interface and middle eyepiece head unit 3 all the way
To receive high-resolution video all the way, another way video input interface is connect with the first video frequency processing chip 4 for connection, is spelled with receiving
Connect video.In the case where left eyepiece head unit 1 and right eyepiece head unit 2 export 200W resolution video, the splicing view
Frequency is the video of 400W resolution ratio.
Second video frequency processing chip 6 is exported according to the result from the received behavioural analysis of intellectual analysis chip 5 from splicing
The low-resolution video all the way that image is chosen and/or the specific region video intercepted from the high-resolution video.Preferably, from
The resolution ratio of the specific region video of the high-resolution video interception is equal to the resolution ratio of the low-resolution video.For example,
In the case where left eyepiece head unit 1 and right eyepiece head unit 2 output 200W resolution video, the specific region video of interception
Resolution ratio be also 200W.That is, intercepting eighth domain from the picture frame of 1600W video, then exported.
Preferably, first video frequency processing chip 4 controls left ocular head list using same parameter and control logic
Member 1 and right eyepiece head unit 2.
Three lens cameras of the utility model handle the video of three road different resolutions with two video frequency processing chips, by
This realizes detection and scene close up function simple and feasiblely, can provide education recorded broadcast device in cost-effective manner.This
Utility model completed on a video camera should be the system completion thing, improve response speed, drop
Low cost.
That is, three lens cameras of the utility model are completed using three camera lenses and educate adopting for recorded broadcast associated video
Collection.Depth map information is obtained by two low resolution camera lenses and for the video of behavioural analysis, passes through a ultrahigh resolution
Camera lens to obtain broadcasting video, and the analysis result of specific behavior is specifically shown.
More specifically, obtaining depth of field figure information by binocular, the behavioral value of student and teacher are completed, obtains student
With the behavioural information of teacher.An intermediate mesh uses super large resolution ratio (800W, 1600W) imaging sensor, is obtained based on binocular
The coordinate that student and teacher's behaviors information and behavior occur, the Video coding by intercepting wherein 200w export, and complete feature
And position tracking function.
The utility model also provides a kind of automation education recorded broadcast device, and the automation education recorded broadcast device includes camera shooting
Machine, display and studio equipment, the studio equipment are connect with the video camera, and the signal that video camera exports is exported to aobvious
Show and shown on device, wherein the video camera is three lens camera as described above.
Preferably, the quantity of the video camera is two, camera shooting machine testing dais region, another camera shooting machine testing
Student's seating area.
This product uses two equipment, is automatically performed student and stands up detection, and teacher walks about detection and teacher's writing on the blackboard behavior is examined
It surveys.According to these events, student is provided and is stood up feature, teacher walks about feature tracking, and teacher's writing on the blackboard feature etc. educates recorded broadcast often
Picture, while relevant event type being provided, facilitate the real-time image switching of automatic recording broadcasting system.
Feature is provided relative to using more machines, teacher walks motion tracking etc., and the utility model can reduce multiple machines
Position, reducings the construction costs.Using the picture of super large resolution ratio, the mode for intercepting the amplification of part picture is realized feature and tracking, is rung
It answers speed to be exceedingly fast, has achieved the effect that original multiple seats in the plane can be only achieved with less equipment.
For example, under normal circumstances, the video compress of 800W is at the output of 200w, or directly low resolution regards all the way for output
Frequently (required calculation amount is smaller).In the case of feature, the region 200w in 800w is intercepted, 200w output is encoded into, is equivalent to and has done 2
Amplification (being exactly 4 times on area) again
In an example embodiment, three lens cameras of the utility model realize that the method for student's standing feature is as follows.
1. under normal circumstances, 1600w video compression coding to 200w resolution ratio is exported；Or directly low point all the way of output
Resolution video.
2., with the student networks that stand up, being compiled from 1600w video intercepting 200w pixel when detecting that single student stands up
Code is exported at 200w resolution video, is equivalent to and is expanded 8 times.
3. while video camera exports student student's panorama, the feature of triggering output student station immediately.
Finally it is noted that above embodiments are only to illustrate the technical solution of the utility model, rather than it is limited
System.Those skilled in the art should understand that: it is possible to modify the technical solutions described in the foregoing embodiments, or
Person's equivalent replacement of some of the technical features；These are modified or replaceed, and do not make the essence of corresponding technical solution de-
Spirit and scope from various embodiments of the utility model technical solution.
Claims (10)
1. a kind of three lens cameras characterized by comprising shell and setting the intracorporal left eyepiece head unit (1) of the shell,
Right eyepiece head unit (2) and middle eyepiece head unit (3), the left eyepiece head unit (1), right eyepiece head unit (2) and middle eyepiece
The optical axis of head unit (3) is parallel, the resolution ratio of the imaging sensor of the left eyepiece head unit (1) and right eyepiece head unit (2)
Lower than the resolution ratio of the imaging sensor of middle eyepiece head unit (3), the figure of left eyepiece head unit (1) and right eyepiece head unit (2)
As the resolution ratio of sensor is identical.
2. three lens camera as described in claim 1, which is characterized in that the left eyepiece head unit (1), right eyepiece head unit
(2) and the camera lens of middle eyepiece head unit (3) uses same lens, aperture and target surface parameter.
3. three lens camera as described in claim 1, which is characterized in that the left eyepiece head unit (1) and right ocular head list
First (2) use the imaging sensor of 200w pixel；Middle eyepiece head unit (3) uses the imaging sensor of 800w or 1600W pixel.
4. three lens camera as described in claim 1, which is characterized in that the left eyepiece head unit (1), right eyepiece head unit
(2) and middle eyepiece head unit (3) is by Accurate Calibration, and three video visual field angular difference levels of acquisition are not higher than 3 °, are vertically not higher than
1°。
5. such as three lens camera of any of claims 1-4, which is characterized in that the left eyepiece head unit (1), the right side
Eyepiece head unit (2) and middle eyepiece head unit (3) are in same level, the left eyepiece head unit (1), right eyepiece head unit
(2) distance is more than or equal to 10cm between.
6. such as three lens camera of any of claims 1-4, which is characterized in that the left eyepiece head unit (1), the right side
Eyepiece head unit (2) and middle eyepiece head unit (3) are in same level, the left eyepiece head unit (1), right eyepiece head unit
(2) distance is equal to 12cm between.
7. such as three lens camera of any of claims 1-4, which is characterized in that three lens camera further include:
First video frequency processing chip (4), the second video frequency processing chip (6) and intellectual analysis chip (5),
First video frequency processing chip (4) has two-path video input interface, with left eyepiece head unit (1) and right eyepiece head unit
(2) it connects, receives the two-way low-resolution video for coming from left eyepiece head unit (1) and right eyepiece head unit (2), and low to two-way
Resolution video is handled to generate depth map, and depth map and any road low-resolution video is conveyed to intellectual analysis core
Piece (5)；
Intellectual analysis chip (5) is connect with the first video frequency processing chip (4), is carried out behavioural analysis to video and is determined whether to set
The coordinate that the behavior and behavior for determining type occur, and the result of behavioural analysis is delivered to second video frequency processing chip
(6)；
Second video frequency processing chip (6) has two-path video input interface, and video input interface and middle eyepiece head unit connect all the way
Connect with receive all the way high-resolution video, another way video input interface connect with the first video frequency processing chip (4), with reception and
Output low-resolution video, and/or the local content from the coordinate for intercepting behavior generation in high-resolution video all the way
It is exported as feature.
8. three lens camera as claimed in claim 7, which is characterized in that first video frequency processing chip (4) uses same
Parameter and control logic control left eyepiece head unit (1) and right eyepiece head unit (2).
9. a kind of education recorded broadcast device comprising video camera, display (8) and studio equipment (7), the studio equipment (7) with
Video camera connection, and the signal that video camera exports is exported to showing on display (8), wherein the video camera
It is such as three lens camera of any of claims 1-8.
10. education recorded broadcast device as claimed in claim 9, which is characterized in that the quantity of the video camera is two, and one is taken the photograph
Camera detects dais region, another camera shooting machine testing student's seating area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821458274.5U CN208754392U (en) | 2018-09-06 | 2018-09-06 | A kind of three lens camera and the education recorded broadcast device with it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821458274.5U CN208754392U (en) | 2018-09-06 | 2018-09-06 | A kind of three lens camera and the education recorded broadcast device with it |
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| CN208754392U true CN208754392U (en) | 2019-04-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111343367A (en) * | 2020-02-17 | 2020-06-26 | 清华大学深圳国际研究生院 | Billion-pixel virtual reality video acquisition device, system and method |
| CN112040249A (en) * | 2020-08-11 | 2020-12-04 | 浙江大华技术股份有限公司 | Recording and broadcasting method and device and single camera |
-
2018
- 2018-09-06 CN CN201821458274.5U patent/CN208754392U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111343367A (en) * | 2020-02-17 | 2020-06-26 | 清华大学深圳国际研究生院 | Billion-pixel virtual reality video acquisition device, system and method |
| CN111343367B (en) * | 2020-02-17 | 2021-06-08 | 清华大学深圳国际研究生院 | Billion-pixel virtual reality video acquisition device, system and method |
| CN112040249A (en) * | 2020-08-11 | 2020-12-04 | 浙江大华技术股份有限公司 | Recording and broadcasting method and device and single camera |
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