CN103948236A - Intelligent desk for correcting sitting posture and correction method thereof - Google Patents
Intelligent desk for correcting sitting posture and correction method thereof Download PDFInfo
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Abstract
The invention relates to an intelligent desk for correcting a sitting posture. The intelligent desk comprises a desktop, desk legs, an infrared emitter, an infrared camera, a visible light camera, a control box and a display panel, wherein a reading-writing area is arranged on the desktop; the infrared emitter is used for projecting infrared structured light; the infrared camera is used for collecting an infrared structured light image; the visible light camera is used for collecting a sitting posture image of a human body; the display panel is used for displaying the sitting posture; the infrared camera and the visible light camera respectively transmit the collected image into the control box for image processing; after infrared structured light measurement, three-dimensional reconstruction and object recognition, the sitting posture image information of a user is analyzed; finally, the sitting posture image information is sent to the display panel. The invention also provides a method for correcting the sitting posture based on the intelligent desk. According to the intelligent desk and the correction method thereof, the correction of the sitting posture is realized by using an information technique and an image modeling processing technique; not only is no discomfort caused to the user, but also the sitting posture of people can be effectively and precisely corrected; therefore the vision diminution resulting from an incorrect sitting posture is avoided.
Description
Technical field
The present invention relates to intelligent medical field, more specifically, relate to Intelligent desk and antidote thereof that a kind of combination electronic information and image processing techniques correct faulty sitting posture.
Background technology
At present, according to investigation, bathomorphic main inducing has two, and the one, sitting posture is improper, and the 2nd, excess eye-using.Nowadays, on market, also there is the desk that some correct faulty sitting posture, substantially can be divided into and force to correct and the large class of sensor monitoring two.
The so-called desk that corrects faulty sitting posture forced, is by sitting posture fixation kit is set on backrest, realizes by fixing human mechanically the object correcting faulty sitting posture.Not only complex structure of this desk, and force the mode correcting faulty sitting posture easily to bring sense of discomfort to user, and for the user of different builds, sitting posture fixation kit may not play a role effectively, for example, patent of invention " multifunctional intellectual posture-correcting desk and chair-201210411424.8 " is disclosed.
The desk of so-called sensor monitoring sitting posture, the generally distance to table rock by monitor user ' heads such as ultrasonic sensor, infrared sensor, range sensors.Because human body and desk distance is very near, this class monitoring mode is high to the required precision of sensor, but also can not monitor human body integral sitting posture, can not entirety judge that whether sitting posture is correct.Simultaneously sensor is easily subject to the impact of in one's hands, books etc., thereby causes erroneous judgement.For example, below, two disclose utility model patent " Intelligent school desk-201020571032.4 " and " Intelligent desk for preventing myopia-200920109095.5 ", and the former is exactly ultrasonic sensor and the infrared sensor adopting, and what the latter adopted is range sensor.
Summary of the invention
The object of the invention is to overcome defect and the deficiency of prior art, a kind of Intelligent desk correcting faulty sitting posture is provided, this desk is realized and being corrected faulty sitting posture by information technology and image modeling treatment technology, not only can not bring discomfort with user, and can effectively and accurately correct people's sitting posture, avoid really reducing eyesight because of abnormal sitting posture.
Another object of the present invention is also to provide a kind of Intelligent desk correcting faulty sitting posture and antidote thereof.
In order to achieve the above object, the invention provides a kind of Intelligent desk correcting faulty sitting posture, comprise desktop and table leg, it on described desktop, is read-write region, described Intelligent desk also comprises the RF transmitter for projecting infrared structure light, for gathering the infrared pick-up head of infrared structure light image under human body sitting posture, for gathering the visible image capturing head of human body sitting posture image, control box and for showing the display floater of sitting posture, described infrared pick-up head and visible image capturing head carry out image processing by the infrared structure light image collecting and human body sitting posture image transmitting respectively to described control box, again after infrared structure photo measure and three-dimensional reconstruction, the sitting posture image information of analysis user, finally described sitting posture image information is sent to described display floater.
According to one embodiment of present invention, described control box comprises the power module and the switch that are connected for the microprocessor of image processing and with described microprocessor, the output of described RF transmitter, visible image capturing head and infrared pick-up head all accesses described microprocessor, and the input of described display floater accesses described microprocessor.
According to one embodiment of present invention, described control box also comprises buzzer, and described buzzer for sending alarm in the time that user's abnormal sitting posture is true, and described buzzer is connected with described microprocessor.
According to one embodiment of present invention, described control box also comprises the TIP for Intelligent desk parameter is set, and described TIP is connected with described microprocessor.
According to one embodiment of present invention, the table leg that described table leg is capable of regulating top height.
The present invention also provides a kind of Intelligent desk correcting sitting posture method based on above-mentioned, said method comprising the steps of:
A1, RF transmitter start to launch infrared structure light, and infrared pick-up head gathers the structure light image of described infrared structure light and the human body sitting posture image that visible image capturing head gathers simultaneously, and all transfers in control box;
A2, by the microprocessor in control box, the sequence of structure light image and human body sitting posture image is carried out to denoising, equalization, image enhancement processing successively, and extract the characteristic point information of structured light, human body face organ and organization of human body;
A3, according to the coded system of steps A 2 structured lights and structured light characteristic point information, restore human body three-dimensional profile, complete three-dimensional reconstruction; And according to the human body face organ extracting in steps A 2 and the characteristic point information of organization of human body, identify main object, and extract the skeleton model of human vertebra;
A4, according to the identification of the three-dimensional reconstruction completing in steps A 3 and main object, determine the locus coordinate of each object;
A5, calculate and sit apart from, sighting distance according to the space coordinates information of each object, by the vertebral bones model under comparison user's vertebral bones model and standard sitting posture, whether the current sitting posture of analysis user is correct, if abnormal sitting posture is true, send a warning, and repeat A1～A4 step, until correcting sitting posture is correct.
According to one embodiment of present invention, described main object comprises human eye, chest, joint, desktop.
According to one embodiment of present invention, when user leaves after camera coverage, in captured image sequence, exist without human body; By the frame existing without human body continuously in detected image sequence, calculate the duration that user leaves; In the time that the time that user leaves exceedes preset value, by normal shutdown stop control box.
The present invention, with respect to prior art, has following beneficial effect:
A kind of Intelligent desk correcting faulty sitting posture of the present invention is sent infrared structure light, single infrared pick-up head and is carried out the visual light imaging of active infra-red imaging and visible image capturing head by RF transmitter, and through three-dimensional image reconstruction and object identification, vertebral bones model under contrast user's vertebral bones model and standard sitting posture, whether the current sitting posture of analysis user is correct, to realize the object of correcting user's sitting posture.This desk does not both change sitting posture by mechanical forced user does not need high-precision sensor to realize yet, and can effectively allow user form good sitting posture custom and remind suitable access time.And this structure of desk is simple, and cost is lower, be applicable to applying.
Brief description of the drawings
Fig. 1 is the structural representation of the Intelligent desk that corrects faulty sitting posture of the present invention;
Fig. 2 is the theory diagram of control box of the present invention;
Fig. 3 is the control box theory diagram in the embodiment of the present invention;
Fig. 4 is the human body sitting posture profile diagram that in the embodiment of the present invention, three-dimensional reconstruction restores;
Fig. 5 is human skeleton model schematic diagram in the embodiment of the present invention;
Fig. 6 is the correct faulty sitting posture schematic flow sheet of method of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
As shown in Figure 1, the structural representation of the Intelligent desk correcting faulty sitting posture for the present invention, this Intelligent desk comprises table leg 1 and desktop 2, wherein, it on desktop 2, is read-write region, in the embodiment of the present invention, read-write region can be level or the desktop that has a constant tilt angle or angle of inclination freely to adjust.For convenient read-write, can also one upright book file (being similar to the qin spectrum clamp of piano) be set at desktop front end, this upright book file can be vertical or have a constant tilt angle or angle of inclination can freely adjust and even set level completely desktop.
Intelligent desk of the present invention also comprises the RF transmitter F1 for projecting infrared structure light, for gathering the infrared pick-up head S1 of infrared structure light image under human body sitting posture, for gathering a visible image capturing S2 of human body sitting posture image, control box 3 and for showing the display floater 4 of sitting posture, an infrared pick-up head S1 and visible image capturing S2 carries out image processing by the infrared structure light image collecting and human body sitting posture image transmitting respectively to control box 3, pass through again infrared structure photo measure, after three-dimensional reconstruction and object identification, the sitting posture image information of analysis user, finally described sitting posture image information is sent to described display floater.
In the embodiment of the present invention, RF transmitter F1 is for projecting space by infrared structure light, for carrying out active infrared imaging and the mensuration of three-dimensional depth information, in the present embodiment, infrared structure light can be dot structure light, line-structured light or area-structure light, and its coding method can be grating encoding, time encoding or space encoding.RF transmitter F1 should be installed in and structured light can be projected to people above the waist or the most position of the upper part of the body, and be difficult for being blocked by other objects (as light fixture, books), and in the centre symmetry line of trying one's best in the time of human body sitting posture, make partes corporis humani position all spare to light.Preferably, the local fixing camera not being blocked in the front upper place in tabletop reading, writing region.
In the embodiment of the present invention, infrared pick-up head S1 adopts active infra-red imaging, and infrared pick-up S1 head is for taking the infrared structure light metamorphosis under human body sitting posture, and structure light image sequence will participate in 3-dimensional reconstruction calculating.According to structured light signal intensity in image, can measure depth information, Recovery object profile, carries out the three-dimensional reconstruction of image.Infrared pick-up head S1 should be installed in and can photograph the people position of (or most of) above the waist above the waist, and be difficult for being blocked by other objects (as light fixture, books), and as far as possible on to the good camera site of human body, preferably, the fixing infrared pick-up head S1 in place not being blocked in the front upper place in tabletop reading, writing region.The local installation infrared line camera S1 that for example, can not be blocked above upright book file.The local installation infrared line camera S1 that for example, can not be blocked above upright book file.Display floater 4 of the present invention, for showing current human body sitting posture information, preferably, uses display panels, display floater 4 can be arranged at desktop 2 and read and write area peripheral edge, or be arranged on upright book file top, in the time that human body sitting posture is normal, show normal sitting position information; In the time that human body sitting posture is abnormal, show corresponding anomaly item, as excessively near in sighting distance, sit apart near with excessivelying, contain the information such as chest, crooked sitting posture.
In the embodiment of the present invention, a visible image capturing S2 is used for taking human body sitting posture image, and human body sitting posture image sequence will participate in human body identification, skeleton model extracts in calculating.A visible image capturing S2 should be installed in and can photograph the people position of (or most of) above the waist above the waist, and be difficult for being blocked by other objects (as light fixture, books), and as far as possible on to the good camera site of human body, preferably, the fixing visible image capturing S2 in place not being blocked in the front upper place in tabletop reading, writing region.A visible image capturing S2 is installed in the place that for example, can not be blocked above upright book file.
As shown in Figure 2, for control box 3 operation principle structural representations of the present invention, this control box 3 comprises the power module and the switch that are connected for the microprocessor of image processing and with microprocessor, the output of RF transmitter F1, infrared pick-up head S1 and a visible image capturing S2 all accesses microprocessor, the input access microprocessor of display floater 4.Power module of the present invention can use civilian alternating source, also can use battery, battery, may need rectifier etc. when alternating source when using, in the time using battery, may need low electro-detection, in the time using battery, need voltage detecting and charging module.Switch of the present invention can be arranged on a body, or remote control switch, closing switch in the time that people leaves desk, RF transmitter F1, infrared pick-up head S1, a visible image capturing S2, control box 3, display floater 4 etc. quit work, deenergization, can economize on resources, and reduces device loss.
As shown in Figure 3, control box 3 in the embodiment of the present invention can also comprise for sending the buzzer of alarm and for the TIP of Intelligent desk parameter is set, buzzer is all connected with microprocessor with TIP in the time that user's abnormal sitting posture is true.User can set relevant parameter on this TIP, as time threshold of continuous read-write etc., TIP can be arranged on a body, also can be remote controller form, can also be with output equipment in display floater be integrated, there is the contact panel of User Interface, can input and exportable.
In the embodiment of the present invention, table leg 1 is for regulating the table leg 1 of desktop 2 height, can be manual adjustments mode, change the length of table leg, table top height adjusting by manually adjusting movable buckle, gear etc. (the needing buckle to fix) structure being arranged on table leg 2; Also can be electrical adjustment mode, user selects and presses and highly regulates button (need at least comprise " rising ", " reduction " button, button is arranged on a body, be not limited to desktop, can be the arbitrary suitable position of a body), regulate the signal of telecommunication of button by control box 3 analytic Height, length adjustment module on table leg 1 is sent corresponding instruction, thereby as one man, accurately adjust the length (four problems that leg is different in size that may occur can avoid manual adjustments time) of each table leg 1, regulate desktop 2 height.
As shown in Figure 6, be the correct faulty sitting posture schematic flow sheet of method of the present invention, the method specifically comprises the following steps:
A1, RF transmitter start to launch infrared structure light, and infrared pick-up head gathers the structure light image of described infrared structure light and the human body sitting posture image that visible image capturing head gathers simultaneously, as shown in Figure 4, and all transfers in control box;
A2, by the microprocessor in control box, the sequence of structure light image and human body sitting posture image is carried out to denoising, equalization, image enhancement processing successively, and extract the characteristic point information of structured light, human body face organ and organization of human body;
A3, according to the coded system of steps A 2 structured lights and structured light characteristic point information, restore human body three-dimensional profile, complete three-dimensional reconstruction; And according to the human body face organ extracting in steps A 2 and the characteristic point information of organization of human body, identify main object, and extract the skeleton model of human vertebra, as shown in Figure 5;
A4, according to the identification of the three-dimensional reconstruction completing in steps A 3 and main object, determine the locus coordinate of each object;
A5, calculate and sit apart from, sighting distance according to the space coordinates information of each object, by the vertebral bones model under comparison user's vertebral bones model and standard sitting posture, whether the current sitting posture of analysis user is correct, if abnormal sitting posture is true, send a warning, and repeat A1～A4 step, until correcting sitting posture is correct.
In the embodiment of the present invention, each frame that image processing is specially in the sequence of the sitting posture image that structure light image that infrared pick-up head S1 is collected and a visible image capturing S2 collect is distinguished denoising (smothing filtering, medium filtering, Gassian low-pass filter etc.), equalization (histogram equalization, coloured image need to be revised aberration colour cast, adjusts color saturation, contrast), the pretreatment such as sharpening (as the rim detection such as Laplace operator, canny).
In the embodiment of the present invention, feature extraction is specially the characteristic point that structure light image that infrared camera S1 is collected extracts structured light (as Harris Corner Detection etc.) etc., and the characteristic value extracting will participate in next step structural light measurement and three-dimensional reconstruction step; The human body sitting posture image that a visible image capturing S2 is collected extracts the operations such as the features such as face organ, organization of human body (as extracted the characteristic value at the key position places such as eyes, chest, main joint, desktop, books), and the characteristic value extracting will participate in next step pattern-recognition step.Structural light measurement and three-dimensional reconstruction are specially: according to the coded system of structured light, the structured light characteristic point in infrared structure light image is carried out to corresponding algorithm process, measure the depth information of characteristic point, Recovery object profile, completes the three-dimensional reconstruction of image; Pattern-recognition (characteristics of human body's identification) is specially: according to the characteristic information such as face organ, organization of human body extracting, human body sitting posture image is carried out to image is cut apart and pattern-recognition, correctly identify the objects such as human eye, chest, main joint, desktop, this part algorithm for pattern recognition can complete by modes such as SVMs that (mode of pattern-recognition is various, and have his own strong points, do not repeated) herein, by the method for machine learning, the skeleton model of human vertebra can be extracted.
In the embodiment of the present invention, in conjunction with the identification at Three-dimension Reconstruction Model and the main position of human body, in Three-dimension Reconstruction Model, obtain the coordinate information at the positions such as eyes, chest, table edge, vertebral bones model.From these coordinates, can calculate and sit apart from (distance between chest and table edge), sighting distance (eyes are from the distance of books).By the vertebral bones model under comparison user's vertebral bones model and standard sitting posture, whether can analysis user current sitting posture is correct, whether contains chest, crooked etc.Last in flow process, need to be sent to output equipment as on display floater 4 by corresponding sitting posture result, and show corresponding prompting message.
The present invention is in embodiment, can also the method by correcting sitting posture calculate the continuous access time of user, microprocessor keeps the frame of sitting posture continuously by human body in detected image sequence, can calculate the human body duration of read-write continuously, in the time that the duration of continuous read-write exceedes default threshold value, send signal to display floater 4, reminding user is suitably had a rest.In addition, when user leaves long time, can automatic shutdown and cut off the electricity supply, being specially microprocessor can, by the variation of human figure, position in detected image sequence, judge user's action, the action that therefore user leaves desk can be detected; When user leaves after camera coverage, in the image sequence of taking the photograph, exist without human body; By there is continuously the frame of (or being present on seat without human body) in detected image sequence without human body, can calculate the duration that user leaves; In the time that the time that user leaves exceedes preset value, by normal shutdown stop system, deenergization.
In sum, a kind of Intelligent desk correcting faulty sitting posture provided by the invention by RF transmitter F1 send infrared structure light, single infrared pick-up head carries out active infra-red imaging S1 and a single visible image capturing S2, and through three-dimensional image reconstruction and pattern-recognition, vertebral bones model under contrast user's vertebral bones model and standard sitting posture, whether the current sitting posture of analysis user is correct, to realize the object of correcting user's sitting posture.This desk does not both change sitting posture by mechanical forced user does not need high-precision sensor to realize yet, and can effectively allow user form good sitting posture custom and remind suitable access time.And this structure of desk is simple, and cost is lower, be applicable to applying.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not run counter to change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (8)
1. the Intelligent desk correcting faulty sitting posture, comprise desktop and table leg, it on described desktop, is read-write region, it is characterized in that, described Intelligent desk also comprises the RF transmitter for projecting infrared structure light, for gathering the infrared pick-up head of infrared structure light image under human body sitting posture, for gathering the visible image capturing head of human body sitting posture image, control box and for showing the display floater of sitting posture, described infrared pick-up head and visible image capturing head carry out image processing by the infrared structure light image collecting and human body sitting posture image transmitting respectively to described control box, pass through again infrared structure photo measure, after three-dimensional reconstruction and object identification, the sitting posture image information of analysis user, finally described sitting posture image information is sent to described display floater.
2. a kind of Intelligent desk correcting faulty sitting posture according to claim 1, it is characterized in that, described control box comprises the power module and the switch that are connected for the microprocessor of image processing and with described microprocessor, the output of described RF transmitter, visible image capturing head and infrared pick-up head all accesses described microprocessor, and the input of described display floater accesses described microprocessor.
3. a kind of Intelligent desk correcting faulty sitting posture according to claim 2, is characterized in that, described control box also comprises buzzer, and described buzzer for sending alarm in the time that user's abnormal sitting posture is true, and described buzzer is connected with described microprocessor.
4. a kind of Intelligent desk correcting faulty sitting posture according to claim 2, is characterized in that, described control box also comprises the TIP for Intelligent desk parameter is set, and described TIP is connected with described microprocessor.
5. a kind of Intelligent desk correcting faulty sitting posture according to claim 1, is characterized in that the table leg that described table leg is capable of regulating top height.
6. a kind of correcting sitting posture method that the Intelligent desk based on described in claim 1～5 any one provides, is characterized in that, said method comprising the steps of:
A1, RF transmitter start to launch infrared structure light, and infrared pick-up head gathers the structure light image of described infrared structure light and the human body sitting posture image that visible image capturing head gathers simultaneously, and all transfers in control box;
A2, by the microprocessor in control box, the sequence of structure light image and human body sitting posture image is carried out to denoising, equalization, image enhancement processing successively, and extract the characteristic point information of structured light, human body face organ and organization of human body;
A3, according to the coded system of steps A 2 structured lights and structured light characteristic point information, restore human body three-dimensional profile, complete three-dimensional reconstruction; And according to the human body face organ extracting in steps A 2 and the characteristic point information of organization of human body, identify main object, and extract the skeleton model of human vertebra;
A4, according to the identification of the three-dimensional reconstruction completing in steps A 3 and main object, determine the locus coordinate of each object;
A5, calculate and sit apart from, sighting distance according to the space coordinates information of each object, by the vertebral bones model under comparison user's vertebral bones model and standard sitting posture, whether the current sitting posture of analysis user is correct, if abnormal sitting posture is true, send a warning, and repeat A1～A4 step, until correcting sitting posture is correct.
7. a kind of correcting sitting posture method according to claim 6, is characterized in that, described main object comprises human eye, chest, joint, desktop.
8. a kind of correcting sitting posture method according to claim 6, is characterized in that, when user leaves after camera coverage, in captured image sequence, exists without human body; By the frame existing without human body continuously in detected image sequence, calculate the duration that user leaves; In the time that the time that user leaves exceedes preset value, by normal shutdown stop control box.
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| CN113080610A (en) * | 2021-04-21 | 2021-07-09 | 付翠仙 | Table and chair adjusting method and table and chair |
| CN113080610B (en) * | 2021-04-21 | 2022-11-25 | 付翠仙 | Table and chair adjusting method and table and chair |
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