CN102968178B - A kind of PPT control system based on gesture - Google Patents

A kind of PPT control system based on gesture Download PDF

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Publication number
CN102968178B
CN102968178B CN201210441290.4A CN201210441290A CN102968178B CN 102968178 B CN102968178 B CN 102968178B CN 201210441290 A CN201210441290 A CN 201210441290A CN 102968178 B CN102968178 B CN 102968178B
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China
Prior art keywords
gesture
gestures
steering order
ppt
images
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CN201210441290.4A
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Chinese (zh)
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CN102968178A (en
Inventor
程洪
代仲君
杨路
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电子科技大学
布法罗机器人科技(苏州)有限公司
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Priority to CN201210441290.4A priority Critical patent/CN102968178B/en
Publication of CN102968178A publication Critical patent/CN102968178A/en
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Abstract

The invention discloses a kind of PPT control system based on gesture, this system comprises: image collection module, for obtaining extraneous images of gestures, and extraneous images of gestures is sent to gesture processing module; Gesture processing module, for the treatment of the extraneous images of gestures received, and compares the images of gestures after process and the local images of gestures list information stored, the steering order of correspondence is sent to command output module; Command output module, for the steering order of reception is sent to processor, completes and controls PPT.By applying this system in PPT presentation process, the constraint of user is broken away from keyboard, mouse and telepilot, freely can control, improve controlling and the fluency of demonstration in presentation process.

Description

A kind of PPT control system based on gesture
Technical field
The present invention relates to office teaching demonstration control field, particularly a kind of PPT control system based on gesture.
Background technology
In teaching lecture system or meeting report system, the e-teaching plan using PowerPoint to make and technical report, major part still has line traffic control by original mouse, keyboard, it is the interaction that teaching method or meeting report all focus on operating personnel and spectators, when operating personnel go down dais to exchange with spectators run into PPT need the situation of page turning time, have to again to interrupt and the exchanging of spectators, again walk back dais and carry out PPT page turning.Wired connection has fettered the scope of activities of people, brings a lot of inconvenience to real life.
Chinese Patent Application No. be 200610011999.5 application for a patent for invention disclose a kind of based on intelligent mobile phone platform method for remote controlling computer, its main technical schemes is: when mobile phone and computing machine all possess J2ME development platform, mobile phone terminal uses WAP by mobile phone screen and keyboard, effect the method that computing machine memory controls to reach control PPT to be overcome to a certain extent to the inconvenience of appeal, but the technical scheme of this invention carries out network connection owing to adopting WAP, there is certain delay, and be equivalent to be controlled by telepilot by the control of mobile phone, do not remove the constraint of the similar actuation means such as telepilot.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is:
In PPT presentation process, can only be controlled PowerPoint PPT by similar control devices such as keyboard, mouse or telepilots, cannot realize convenient and swift and without the need to the operation of external device.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of PPT control system based on gesture, this system comprises:
Image collection module, for obtaining extraneous images of gestures, and sends to gesture processing module by extraneous images of gestures;
Gesture processing module, for the treatment of the extraneous images of gestures received, and compares the images of gestures after process and the local images of gestures list information stored, the steering order of correspondence is sent to command output module;
Command output module, for the steering order of reception is sent to processor, completes and controls PPT.
Described image collection module is realized by depth camera, and the degree of freedom of described depth camera is ± 27 degree.
Described gesture processing module specifically comprises:
Video processing unit, processes for the image sent image collection module, removes background image, obtains hand exercise image;
Staff information process unit, for processing hand moving image, obtains gesture motion track;
Feature generation unit, for processing gesture motion track, and is filled and is changed to gesture feature information;
Data are preserved and recognition unit, contrast, send to command output module by the steering order of correspondence for the steering order information preserved by described gesture feature information and date and store in recognition unit.
Described gesture processing module also comprises:
Training and recognition unit, for training and learning gesture sample, and add data preservation to the steering order information of recognition unit by described gesture sample information.
Described gesture comprises singlehanded gesture and both hands coordinate gesture.
Described steering order comprises: slideshow, terminate projection, page turning, paintbrush and exit paintbrush.
Described depth camera towards with projector towards identical.
(3) beneficial effect
Control by using gesture in PPT presentation process, the constraint of user is broken away from keyboard, mouse and telepilot, freely can control, improve controlling and the fluency of demonstration in presentation process.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of a kind of PPT control system based on gesture of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1,
In PPT presentation process, image collection module adopts the gesture of depth camera to effector to obtain, and the degree of freedom of depth camera is ± 27 degree, with projector towards identical.Carrying out motion capture by depth camera to the action of effector, is the constraint that effector breaks away from the devices such as keyboard, mouse and telepilot, and does not dynamically do accurately, improves controlling and the fluency of demonstration.
Image information is sent to gesture processing module by depth camera, in gesture processing module, video processing unit processes the image that image collection module sends, remove background image, obtain hand exercise image, and hand exercise image is sent to staff information process unit.
Staff information process unit processes the hand exercise image received, and obtains gesture motion track, and gesture motion track is sent to feature generation unit.
Feature generation unit processes the gesture motion track received, and is filled and is changed to gesture feature information, and gesture feature information is sent to data to preserve and reading unit.
Data are preserved the steering order information preserved by the gesture feature information and date of reception with recognition unit and store in reading unit and are contrasted, and send to command output module by the steering order of correspondence.
Steering order information is as shown in the table
Control gesture in control procedure comprises singlehanded gesture and both hands coordinate gesture, and steering order comprises slideshow, terminates projection, page turning etc.
Gesture processing module also comprises training and recognition unit, for training and learning gesture sample, and described gesture sample information is added to data preservation with the steering order information of recognition unit.The Management and application to control information is more convenient for by training and recognition unit.
After gesture information process completes, system is by command output module, sends to processor to control PPT the steering order of reception, and utilizes LCD liquid crystal projector to carry out output display.
Wear any designation equipment by the PPT control system based on gesture without the need to operator, only by obtaining gesture depth image, just need can obtain steering order, improve controlling and the fluency of demonstration.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.

Claims (4)

1. based on a PPT control system for gesture, it is characterized in that, this system comprises:
Image collection module, for obtaining extraneous images of gestures, and sends to gesture processing module by extraneous images of gestures;
Gesture processing module, for the treatment of the extraneous images of gestures received, and compares the images of gestures after process and the local images of gestures list information stored, the steering order of correspondence is sent to command output module;
Command output module, for the steering order of reception is sent to processor, completes and controls PPT;
Wherein, described image collection module is realized by depth camera, and the degree of freedom of described depth camera is ± 27 degree;
Described gesture processing module specifically comprises:
Video processing unit, processes for the image sent image collection module, removes background image, obtains hand exercise image;
Staff information process unit, for processing hand moving image, obtains gesture motion track;
Feature generation unit, for processing gesture motion track, and is converted into gesture feature information;
Data are preserved and recognition unit, contrast, send to command output module by the steering order of correspondence for the steering order information preserved by described gesture feature information and date and store in recognition unit;
Training and recognition unit, for training and learning gesture sample, and add data preservation to the steering order information of recognition unit by described gesture sample information.
2. a kind of PPT control system based on gesture according to claim 1, is characterized in that, described gesture comprises singlehanded gesture and both hands coordinate gesture.
3. a kind of PPT control system based on gesture according to claim 1, it is characterized in that, described steering order comprises: slideshow, terminate projection, page turning, paintbrush and exit paintbrush.
4. a kind of PPT control system based on gesture according to claim 1, is characterized in that, described depth camera towards with projector towards identical.
CN201210441290.4A 2012-11-07 2012-11-07 A kind of PPT control system based on gesture CN102968178B (en)

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CN103294996B (en) * 2013-05-09 2016-04-27 电子科技大学 A kind of 3D gesture identification method
CN104932797A (en) * 2014-03-17 2015-09-23 深圳富泰宏精密工业有限公司 Gesture unlocking method and system
CN104333794A (en) * 2014-11-18 2015-02-04 电子科技大学 Channel selection method based on depth gestures
CN104598027B (en) * 2014-12-30 2018-10-09 中国农业大学 A kind of motion sensing control multi-media Training System based on user behavior analysis
CN105824399A (en) * 2015-01-06 2016-08-03 中兴通讯股份有限公司 Control method, system and apparatus for projection equipment
CN106556963A (en) * 2015-09-24 2017-04-05 北京京东尚科信息技术有限公司 Projection arrangement and projecting method
US10464427B2 (en) 2016-08-29 2019-11-05 Universal City Studios Llc Systems and methods for braking or propelling a roaming vehicle
CN107357421A (en) * 2017-06-23 2017-11-17 中国地质大学(武汉) A kind of PPT control method for playing back and system based on gesture identification
CN107340965A (en) * 2017-06-28 2017-11-10 丝路视觉科技股份有限公司 Desktop display and its control method, object to be identified and its recognition methods
CN108089714A (en) * 2018-01-12 2018-05-29 安徽理工大学 A kind of PPT control systems based on gesture identification
CN110677964A (en) * 2019-08-28 2020-01-10 杭州友邦演艺设备有限公司 Intelligent light control method

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CN1289086A (en) * 1999-09-21 2001-03-28 精工爱普生株式会社 Interactive display system
CN102520793A (en) * 2011-11-30 2012-06-27 苏州奇可思信息科技有限公司 Gesture identification-based conference presentation interaction method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1289086A (en) * 1999-09-21 2001-03-28 精工爱普生株式会社 Interactive display system
CN102520793A (en) * 2011-11-30 2012-06-27 苏州奇可思信息科技有限公司 Gesture identification-based conference presentation interaction method

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