CN102098567B - Interactive television system and control method thereof - Google Patents
Interactive television system and control method thereof Download PDFInfo
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Abstract
The invention provides an interactive television system and a control method thereof, which are suitable for the field of televisions. The interactive television system comprises a central control unit, an image collecting unit, an image processing unit, a face recognizing unit and a result processing unit; the image collecting unit codes a collected face image and then outputs the coded image to the image processing unit under the control of the central control unit; the image processing unit preprocesses the coded image and outputs a binary image; the face recognizing unit carries out face detection processing and face feature extraction on the binary image and outputs an expression parameter; the result processing unit calls corresponding programs according to the expression parameter to operate a television. The facial expression and the mood of a user are recognized by adopting a face recognizing technology, and the image pattern and the sound pattern of the television are adjusted according to the mood of the user, thus, a television and user interacting effect is achieved, the television is more humanized and the experience of the user is promoted.
Description
Technical field
The invention belongs to TV domain, relate in particular to a kind of interactive television system and control method thereof.
Background technology
The at present adjustment of the image model of television set and acoustic pattern mostly or by user oneself is manually adjusted.When user mood was good, the picture of television set may be darker, and sound is also smaller; When user mood was low, the picture of television set may be brighter, and sound is also larger.This has just caused the image model of TV and acoustic pattern not to mate impersonality with user's mood.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of interactive television system, is intended to solve existing television system and must passes through user's manual adjustments, the problem of impersonality.
The embodiment of the invention is achieved in that a kind of interactive television system, and described system comprises:
Image acquisition units, described image acquisition units are used for gathering image, and will export behind the Image Coding that collect;
Graphics processing unit, described graphics processing unit carries out preliminary treatment to the coded image of described image acquisition units output, and the output bianry image;
Face identification unit, described face identification unit is carried out people's face Check processing and facial feature extraction to the bianry image of described graphics processing unit output, and output expression parameter;
The result treatment unit, described result treatment unit is according to the corresponding program of expression parameter call of described face identification unit output;
Described result treatment unit comprises:
Strengthen the happiness program module of image model and acoustic pattern;
Control image model and acoustic pattern are the gentle program module of median;
Weaken the dejected program module of image model and acoustic pattern;
When described expression parameter was the smiling face, described result treatment cell call was carried out described happiness program module, TV was carried out image model and the acoustic pattern that strengthens TV; When described expression parameter when being normal, described result treatment cell call is carried out described gentle program module, and control television image pattern and acoustic pattern are median; When described expression parameter is bitter face, carry out described dejected program module, weaken the operation of image model and the acoustic pattern of TV;
Described enhancing image model and acoustic pattern comprise: to strengthen contrast and brightness, adjustment tone be warm tones, increase colored concentration, promote clearness, improve the size of volume, strengthens supper bass, promotes high pitch, opens surround sound;
Described image model and acoustic pattern are that median comprises: adjust contrast, brightness for than better suited median, to adjust tone be normal tone, reduce colored concentration for normal colored, definition be adjusted into than better suited median, reduce volume to comparatively suitable median, reduce supper bass for comparatively suitable median, reduce high pitch to comparatively suitable median, open surround sound;
Describedly weaken image model and acoustic pattern comprises: reduce contrast, brightness is lower value, adjustments tone is cool tone, reduce colored concentration, reduce definition for lower value, reduce volume to smaller value, reduce supper bass and be smaller value, reduce the extremely smaller value of high pitch, close surround sound;
And
Central control unit, described central control unit receives the data of described image acquisition units, described graphics processing unit, described face identification unit and the output of described result treatment unit, and sending controling instruction is controlled described image acquisition units, described graphics processing unit, described face identification unit and described result treatment unit.
Another purpose of the embodiment of the invention is to provide a kind of television set that comprises above-mentioned interactive television system.
Another purpose of the embodiment of the invention is to provide a kind of control method of interactive television system, and described method comprises the steps:
Image acquisition units gathers image, and described image is encoded;
Central control unit received code image, and to graphics processing unit transmission preliminary treatment instruction;
Graphics processing unit carries out preliminary treatment to described coded image, coloured image is converted to the bianry image of black and white;
Central control unit receives described bianry image, and sends detection, extracts instruction to face identification unit;
Face identification unit detects the facial image in the described bianry image, and the data of expressing one's feelings of the facial characteristics in the described facial image are extracted;
Central control unit receives described expression data, and sends call instruction to the result treatment unit;
It is the operation of median or image model and the acoustic pattern that weakens TV that the result treatment unit is carried out the image model and acoustic pattern, control television image pattern and the acoustic pattern that strengthen TV according to the corresponding program module of described expression data call to TV;
Described result treatment unit comprises:
Strengthen the happiness program module of image model and acoustic pattern;
Control image model and acoustic pattern are the gentle program module of median;
Weaken the dejected program module of image model and acoustic pattern;
Described result treatment unit is specially according to the step of the corresponding program module of described expression data call to the TV executable operations:
When described expression data are the smiling face, carry out the happiness program module, strengthen image model and the acoustic pattern of TV;
When described expression data are normal, carry out gentle program module, image model and the acoustic pattern of control TV are median;
When described expression data are bitter face, carry out dejected program module, weaken image model and the acoustic pattern of TV;
Described enhancing image model and acoustic pattern comprise: to strengthen contrast and brightness, adjustment tone be warm tones, increase colored concentration, promote clearness, improve the size of volume, strengthens supper bass, promotes high pitch, opens surround sound;
Described image model and acoustic pattern are that median comprises: adjust contrast, brightness for than better suited median, to adjust tone be normal tone, reduce colored concentration for normal colored, definition be adjusted into than better suited median, reduce volume to comparatively suitable median, reduce supper bass for comparatively suitable median, reduce high pitch to comparatively suitable median, open surround sound;
Describedly weaken image model and acoustic pattern comprises: reduce contrast, brightness is lower value, adjustments tone is cool tone, reduce colored concentration, reduce definition for lower value, reduce volume to smaller value, reduce supper bass and be smaller value, reduce the extremely smaller value of high pitch, close surround sound.
The embodiment of the invention is adjusted image model and the acoustic pattern of TV automatically by the detection to human face expression, thereby the hommization that realizes any television system is interactive.
Description of drawings
Fig. 1 is the structure principle chart of the interactive television system that provides of first embodiment of the invention;
Fig. 2 is the realization flow figure of the control method of the interactive television system that provides of second embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The television system that the embodiment of the invention provides can be adjusted image model and acoustic pattern automatically according to people's facial expression, automatically realizes the interaction of people and TV, brings more humane experience to the user.
Fig. 1 shows the structural principle of the interactive television system that the embodiment of the invention provides, and for convenience of explanation, only shows part related to the present invention.
In embodiments of the present invention, described interactive television system comprises:
Image acquisition units 1, this image acquisition units 1 is used for gathering image, and will export behind the Image Coding that collect;
Graphics processing unit 2, the coded image of 2 pairs of image acquisition units of this graphics processing unit, 1 output carries out preliminary treatment, and the output bianry image;
Face identification unit 3, the bianry image of 3 pairs of described graphics processing unit 2 outputs of this face identification unit carries out people's face Check processing and facial feature extraction, and output expression parameter;
Result treatment unit 4, this result treatment unit 4 is according to the corresponding program of expression parameter call of described face identification unit 3 outputs, to the TV executable operations; And
Central control unit 5, this central control unit 5 receives the data of image acquisition units 1, graphics processing unit 2, face identification unit 3 and 4 outputs of result treatment unit, and sending controling instruction control image acquisition units 1, graphics processing unit 2, face identification unit 3 and result treatment unit 4.
As one embodiment of the present invention, image acquisition units 1 comprises camera head 11; Graphics processing unit 2 comprise with coloured image be converted to gray level image gray scale processing module 21, the gray level image of described gray scale processing module output is carried out the histogram analysis module 22 of Threshold segmentation and will be converted into by the gray level image that described histogram analysis module is carried out Threshold segmentation the binary conversion treatment module 23 of black and white image.Face identification unit 3 comprises the people's face detection module 31 that whether has people's face figure in the detected image and the facial feature extraction module 32 that facial image is expressed one's feelings and judged; Result treatment unit 4 comprises that the happiness program module 41, control image model and the acoustic pattern that strengthen image model and acoustic pattern are the gentle program module 42 of median and weaken image model and the dejected program module 43 of acoustic pattern; Central control unit 5 comprises processor 51 and memory 52.
Below in conjunction with specific embodiment realization of the present invention is elaborated.
Start image acquisition units 1 behind the television startup, object before 11 pairs of television sets of camera head carries out IMAQ, 24 true color images that image acquisition units 1 will collect are encoded according to certain picture format, and the image after will encoding is stored on the memory 52 in the central control unit 5.Processor 51 in the central control unit 5 carries out the gray processing processing according to the image of the 21 pairs of codings of gray scale processing module in the system program control graphics processing unit 2, carry out histogram analysis by 22 pairs of images of processing through gray processing of histogram analysis module again, obtain a suitable threshold value, this threshold value is used for gray level image is carried out Threshold segmentation, and after will carrying out binary conversion treatment by binary conversion treatment module 23 through the gray level image of Threshold segmentation, the binaryzation data are sent to memory 52 in the central control unit 5, finish the process that coloured image is converted into the bianry image of black and white this moment.31 pairs of these bianry images of people's face detection module that processor 51 in the central control unit 5 is controlled after receiving the binaryzation data in the face identification unit 3 carry out the facial image detection, judge whether this image exists facial image, if there is facial image, extracted position and the shape of people's face face by facial feature extraction module 32, provide algorithm by 5 processor 51 in the central control unit, judge people's expression according to human face's feature, expression can be divided three classes: the smiling face, normal and bitter face, mood corresponding to smiling face can be understood as happiness, the mood that normal phase is corresponding can be understood as gentle, and the mood that bitter face is corresponding can be understood as dejected.And the data feedback of will expressing one's feelings is to the processor 51 in the central control unit 5, and processor 51 according to recognition result, calls corresponding program module according to system program control result treatment unit 4.
When the human face expression that recognizes was the smiling face, result treatment unit 4 calls carried out happiness program module 41, strengthens image model and the acoustic pattern of TV; When the human face expression that recognizes when being normal, result treatment unit 4 calls carries out gentle program module 42, and control television image pattern and acoustic pattern are median; Result treatment unit 4 calls when the human face expression that recognizes is bitter face, carries out dejected program module 43, weakens image model and the acoustic pattern of TV.
As a realization example of the present invention, strengthening image model and acoustic pattern includes but not limited to: to strengthen contrast and brightness, adjustment tone be warm tones, increase colored concentration, promote clearness, improve the size of volume, strengthens supper bass, promotes high pitch, opens surround sound.Image model and acoustic pattern are that median includes but not limited to: adjustment contrast, brightness are than better suited median, and adjusting tone is that normal tone, the colored concentration of reduction are for normally colour, definition are adjusted into than better suited median; The acoustic pattern aspect includes but not limited to, reduce volume to comparatively suitable median, reduce supper bass and be comparatively suitable median, reduce high pitch to comparatively suitable median, unlatching surround sound.Weaken image model and acoustic pattern includes but not limited to: reduce contrast, brightness is lower value, adjustments tone is cool tone, reduce colored concentration, reduce definition for lower value, reduce volume to smaller value, reduce supper bass and be smaller value, reduce the extremely smaller value of high pitch, close surround sound.
Fig. 2 shows the realization flow of the control method of the interactive television system that second embodiment of the invention provides, and details are as follows:
In step S201, image acquisition units gathers image, and this image is encoded;
In embodiments of the present invention, carry out IMAQ by the object of the camera head in the image acquisition units before to television set, the image that collects can be 24 true color images, and image acquisition units is encoded the image that collects according to certain picture format.
In step S202, central control unit received code image, and to graphics processing unit transmission preliminary treatment instruction;
In embodiments of the present invention, central control unit comprises processor and memory, and memory is used for the memory encoding image, and controller is responsible for sending execution preliminary treatment instruction to graphics processing unit.
In step S203, graphics processing unit carries out preliminary treatment to coded image, coloured image is converted to the bianry image of black and white;
In embodiments of the present invention, graphics processing unit comprises: gray scale processing module, histogram analysis module and binary conversion treatment module.After graphics processing unit receives the preliminary treatment instruction, by the gray scale processing module coloured image through the image acquisition units coding being carried out gray processing processes, coloured image is converted to gray level image, by the histogram analysis module gray level image is carried out histogram analysis again, with the threshold value that obtains being fit to gray level image is carried out Threshold segmentation, by the binary conversion treatment module gray level image is carried out binary conversion treatment at last, obtain bianry image, gray level image is converted into black and white image.
In step S204, central control unit receives bianry image, and sends detection, extracts instruction to face identification unit;
In embodiments of the present invention, receive bianry image by the processor in the central control unit, and send execution detection, extraction instruction.
In step S205, face identification unit detects the facial image in the bianry image, and the data of expressing one's feelings of the facial characteristics in the facial image are extracted;
In embodiments of the present invention, face identification unit comprises people's face detection module and facial feature extraction module, judge whether there is people's face in the bianry image by people's face detection module, if exist, extracted position and the shape of people's face face by the facial feature extraction module, provide algorithm by the processor in the central control unit, judge people's expression according to human face's feature, expression can be divided three classes: the smiling face, normal and bitter face, mood corresponding to smiling face can be understood as happiness, the mood that normal phase is corresponding can be understood as gentle, and the mood that bitter face is corresponding can be understood as dejected.
In step S206, central control unit receives the expression data, and sends call instruction to the result treatment unit;
In embodiments of the present invention, receive the expression data by the processor in the central control unit, and send the execution call instruction.
In step S207, the result treatment unit according to expression data call corresponding program module to the TV executable operations.
In embodiments of the present invention, the result treatment unit comprises: the dejected program module of the happiness program module of corresponding smiling face's expression, the gentle program module of corresponding normal expression and corresponding bitter face expression.Receive the execution instruction of central control unit transmission when the result treatment unit after, according to the corresponding program of expression data call, for example, when the face expression is the smiling face, carry out the happiness program module, image model and the acoustic pattern of enhancing TV; Express one's feelings when normal when face, carry out gentle program module, image model and the acoustic pattern of control TV are median; When the face expression is bitter face, carry out dejected program module, weaken image model and the acoustic pattern of TV.
The embodiment of the invention is identified user's facial expression and mood by face recognition technology, and adjust image model and the acoustic pattern of TV according to user's mood, reach the effect of a kind of TV and user interaction, thereby allow more hommization of TV, promoted user's experience.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. an interactive television system is characterized in that, described system comprises:
Image acquisition units, described image acquisition units are used for gathering image, and will export behind the Image Coding that collect;
Graphics processing unit, described graphics processing unit carries out preliminary treatment to the coded image of described image acquisition units output, and the output bianry image;
Face identification unit, described face identification unit is carried out people's face Check processing and facial feature extraction to the bianry image of described graphics processing unit output, and output expression parameter;
The result treatment unit, described result treatment unit is according to the corresponding program of expression parameter call of described face identification unit output;
Described result treatment unit comprises:
Strengthen the happiness program module of image model and acoustic pattern;
Control image model and acoustic pattern are the gentle program module of median;
Weaken the dejected program module of image model and acoustic pattern;
When described expression parameter was the smiling face, described result treatment cell call was carried out described happiness program module, TV was carried out image model and the acoustic pattern that strengthens TV; When described expression parameter when being normal, described result treatment cell call is carried out described gentle program module, and control television image pattern and acoustic pattern are median; When described expression parameter is bitter face, carry out described dejected program module, weaken the operation of image model and the acoustic pattern of TV;
Described enhancing image model and acoustic pattern comprise: to strengthen contrast and brightness, adjustment tone be warm tones, increase colored concentration, promote clearness, improve the size of volume, strengthens supper bass, promotes high pitch, opens surround sound;
Described image model and acoustic pattern are that median comprises: adjust contrast, brightness for than better suited median, to adjust tone be normal tone, reduce colored concentration for normal colored, definition be adjusted into than better suited median, reduce volume to comparatively suitable median, reduce supper bass for comparatively suitable median, reduce high pitch to comparatively suitable median, open surround sound;
Describedly weaken image model and acoustic pattern comprises: reduce contrast, brightness is lower value, adjustments tone is cool tone, reduce colored concentration, reduce definition for lower value, reduce volume to smaller value, reduce supper bass and be smaller value, reduce the extremely smaller value of high pitch, close surround sound;
And
Central control unit, described central control unit receives the data of described image acquisition units, described graphics processing unit, described face identification unit and the output of described result treatment unit, and sending controling instruction is controlled described image acquisition units, described graphics processing unit, described face identification unit and described result treatment unit.
2. the system as claimed in claim 1 is characterized in that, described image acquisition units comprises camera head.
3. the system as claimed in claim 1 is characterized in that, described graphics processing unit comprises:
Coloured image is converted to the gray scale processing module of gray level image;
The gray level image of described gray scale processing module output is carried out the histogram analysis module of Threshold segmentation; And
To be converted into by the gray level image that described histogram analysis module is carried out Threshold segmentation the binary conversion treatment module of black and white image.
4. the system as claimed in claim 1 is characterized in that, described face identification unit comprises:
The people's face detection module that whether has people's face figure in the detected image;
The facial feature extraction module that facial image is expressed one's feelings and judged.
5. the system as claimed in claim 1 is characterized in that, described central control unit comprises processor and memory.
6. an interactive TV machine is characterized in that, described television set comprises such as each described interactive television system of claim 1 to 5.
7. the control method of an interactive television system is characterized in that, described method comprises the steps:
Image acquisition units gathers image, and described image is encoded;
Central control unit received code image, and to graphics processing unit transmission preliminary treatment instruction;
Graphics processing unit carries out preliminary treatment to described coded image, coloured image is converted to the bianry image of black and white;
Central control unit receives described bianry image, and sends detection, extracts instruction to face identification unit;
Face identification unit detects the facial image in the described bianry image, and the data of expressing one's feelings of the facial characteristics in the described facial image are extracted;
Central control unit receives described expression data, and sends call instruction to the result treatment unit;
It is the operation of median or image model and the acoustic pattern that weakens TV that the result treatment unit is carried out the image model and acoustic pattern, control television image pattern and the acoustic pattern that strengthen TV according to the corresponding program module of described expression data call to TV;
Described result treatment unit comprises:
Strengthen the happiness program module of image model and acoustic pattern;
Control image model and acoustic pattern are the gentle program module of median;
Weaken the dejected program module of image model and acoustic pattern;
Described result treatment unit is specially according to the step of the corresponding program module of described expression data call to the TV executable operations:
When described expression data are the smiling face, carry out the happiness program module, strengthen image model and the acoustic pattern of TV;
When described expression data are normal, carry out gentle program module, image model and the acoustic pattern of control TV are median;
When described expression data are bitter face, carry out dejected program module, weaken image model and the acoustic pattern of TV;
Described enhancing image model and acoustic pattern comprise: to strengthen contrast and brightness, adjustment tone be warm tones, increase colored concentration, promote clearness, improve the size of volume, strengthens supper bass, promotes high pitch, opens surround sound;
Described image model and acoustic pattern are that median comprises: adjust contrast, brightness for than better suited median, to adjust tone be normal tone, reduce colored concentration for normal colored, definition be adjusted into than better suited median, reduce volume to comparatively suitable median, reduce supper bass for comparatively suitable median, reduce high pitch to comparatively suitable median, open surround sound;
Describedly weaken image model and acoustic pattern comprises: reduce contrast, brightness is lower value, adjustments tone is cool tone, reduce colored concentration, reduce definition for lower value, reduce volume to smaller value, reduce supper bass and be smaller value, reduce the extremely smaller value of high pitch, close surround sound.
8. method as claimed in claim 7 is characterized in that, described graphics processing unit carries out preliminary treatment to described coded image, and the step that coloured image is converted to the bianry image of black and white is specially:
The gray scale processing module is carried out the gray processing processing to described coloured image, and described coloured image is converted to gray level image;
The histogram analysis module is carried out histogram analysis to described gray level image, and described gray level image is carried out Threshold segmentation;
The binary conversion treatment module is carried out binary conversion treatment to the described gray level image through Threshold segmentation, and described gray level image is converted into black and white image.
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| CN107320948A (en) * | 2014-04-14 | 2017-11-07 | 林云帆 | A kind of equipment starts control method |
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| CN103634680B (en) * | 2013-11-27 | 2017-09-15 | 青岛海信电器股份有限公司 | The control method for playing back and device of a kind of intelligent television |
| CN103986946A (en) * | 2014-06-03 | 2014-08-13 | 安徽海聚信息科技有限责任公司 | Child-lock control method for network television |
| WO2016088566A1 (en) * | 2014-12-03 | 2016-06-09 | ソニー株式会社 | Information processing apparatus, information processing method, and program |
| CN104777910A (en) * | 2015-04-23 | 2015-07-15 | 福州大学 | Method and system for applying expression recognition to display device |
| CN104932277A (en) * | 2015-05-29 | 2015-09-23 | 四川长虹电器股份有限公司 | Intelligent household electrical appliance control system with integration of face recognition function |
| CN107678291A (en) * | 2017-10-31 | 2018-02-09 | 珠海格力电器股份有限公司 | The control method and device of indoor environment |
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