CN106529449A - Method for automatically adjusting the proportion of displayed image and its display apparatus - Google Patents
Method for automatically adjusting the proportion of displayed image and its display apparatus Download PDFInfo
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- CN106529449A CN106529449A CN201610957733.3A CN201610957733A CN106529449A CN 106529449 A CN106529449 A CN 106529449A CN 201610957733 A CN201610957733 A CN 201610957733A CN 106529449 A CN106529449 A CN 106529449A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
- G06V40/166—Detection; Localisation; Normalisation using acquisition arrangements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/04847—Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/048—Indexing scheme relating to G06F3/048
- G06F2203/04806—Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
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- Image Analysis (AREA)
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Abstract
The invention provides a method for automatically adjusting the proportion of displayed image. The method comprises: capturing and analyzing an image to determine whether there exists at least one human face in the image or not; calculating the size of the human face profile; and calculating whether the distance from the human face to the display apparatus meets the standard distance or not; if not, then, adjusting the proportion of the displayed image of the display apparatus. Therefore, through the use of human face identification technology, the size of a human face profile can be identified. When the human face becomes closer to the display apparatus, the face profile grows larger. And vice versa. With the method and display apparatus, it is possible to automatically adjust the proportion of displayed image on a display apparatus or the size of the displayed words.
Description
Technical field
The present invention is to disclose a kind of display device, in particular to it is a kind of can be according between face and display device
Distance carrys out the display device of the method for adjust automatically display picture ratio.
Background technology
Display device on the market, either in hand-held device such as smart mobile phone or flat board and large-scale aobvious at present
Showing device, to be adjusted display picture scale in display device nothing more than be using mouse to zoom in or out, or
Person is to be clicked on using finger on the screen of the display apparatus, does the action reduced or amplify, and could adjust display screen
The display picture scale of curtain.
In addition, the sight angle for also favorably being folded with the plane between the screen of the direction of visual lines and display device of face
To adjust the size and display effect of screen, but as the mode for adjusting all is processing or need to lean on by manually
The sensing of sensor is being adjusted, therefore the picture for showing on the display screen might not meet the needs of user,
The display picture ratio of display device can not be adjusted according to the number of number, cause the defect in use.
The content of the invention
According to the shortcoming of prior art, disclosed herein a kind of method of adjust automatically display picture ratio and its display
Device, its main purpose are the identification technique using face, detect the size of the profile of face, when face distance display device
Nearer, face mask is bigger；Conversely, it is then less, thereby can be with the display picture ratio of adjust automatically display device or display
Word size.
Another object of the present invention is to the size of multiple faces in front of a display device is obtained, to obtain the flat of multiple faces
Equal size, and this mean size need to reach gauged distance with display device, to meet the distance that beholder watches display device.If
Face then reduces the displaying ratio of display device near display device；If face is away from display device, amplifying display device
Displaying ratio.
According to above-mentioned purpose, the invention discloses a kind of method of adjust automatically display device display picture ratio, its step
Including：Pick-up image, analysis image are judging in image the big of the profile for whether having at least one face and calculating face
The little whether conformance with standard distance the distance between with display device, if it is not, then adjusting the display picture ratio of display device.
The present invention also discloses a kind of display device with adjust automatically display picture ratio in addition, including：Display device,
Taking unit, to obtain image, human face recognition module, judges whether there is at least one face shadow in image according to image
As or judge in image most multiple face images, computing module with same distance between display device, according to face
Image is calculated the mean breadth and average height of the profile of these faces or is had between display device in judging image
Most multiple face images of same distance to calculate a distance weighting, adjusting module, according to the people calculated by computing module
The mean breadth and average height or distance weighting of the profile of face is adjusting display picture ratio and the display of display device
Module, shows the image after adjustment on the display apparatus according to the display picture ratio adjusted by adjusting module.
Description of the drawings
Fig. 1 be according to disclosed herein technology, represent display device block chart.
Fig. 2 be according to disclosed herein technology, represent and capture image in front of a display device, to judge whether to have
Face and flow chart the step of adjust the display picture ratio of display device.
Fig. 3 A be according to disclosed herein technology, represent.
Fig. 3 B be according to disclosed herein technology, represent.
Fig. 4 A be according to disclosed herein technology, represent using distance weighting adjusting the display picture of display device
The step of ratio flow chart.
Fig. 4 B be according to disclosed herein technology, represent according to Fig. 4 A using distance weighting adjusting display device
The schematic diagram of display picture ratio.
Fig. 5 A be according to disclosed herein technology, represent the width of profile using the face of maximum and height come
The step of adjusting aspect ratio shown on the display apparatus flow chart.
Fig. 5 B be according to disclosed herein technology, represent the width using the profile of the face of maximum according to Fig. 5 A
The schematic diagram of the display picture ratio of display device is adjusted with height.
Fig. 6 A be according to disclosed herein technology, represent mean breadth and the average height of profile using face come
The step of adjusting aspect ratio shown on the display apparatus flow chart.
Fig. 6 B be according to disclosed herein technology, represent according to Fig. 6 A using the profile of most multiple faces in image
Mean breadth adjusts the schematic diagram of aspect ratio shown on the display apparatus with average height.
【Symbol description】
1 display device, 10 taking unit
20 display module, 30 processing unit
302 human face recognition module, 304 computing module
306 adjusting modules
40 pick-up images
42 parsing images simultaneously judge whether there is face in this image
44 calculate and judge that the distance between size and display device of face are conformance with standard distances
The 46 display picture ratios for maintaining display device current
The display picture ratio of 48 adjustment display devices
60 pick-up images
62 analyze images and whether have face in judging image
64 obtain the distance between multiple faces and display device in image
66 have the most face image of multiple of same distance with computed range weight according in image between display device
The 68 display picture ratios that display device is adjusted according to distance weighting
70 pick-up images
72 analyze images and whether have face in judging image
The width and height of the profile of 74 faces for obtaining maximum in image
76 according to the width and height of the profile of the faces of this maximum adjusting the display picture ratio of display device
80 pick-up images
82 analyze images and whether have face in judging image
The width and height of 84 profiles for obtaining multiple faces in image
86 by the width of the profile of multiple faces with height be added after divided by face quantity to obtain multiple faces
The mean breadth of profile and height
88 adjust the display picture ratio of display device according to the mean breadth and height of the profile of multiple faces
P most multiple faces
The height of L faces
The width of W faces
The height of L1, Ln face
The width of W1, Wn face
The distance of D1 face distance display devices
Specific embodiment
Referring first to Fig. 1.Fig. 1 be according to disclosed herein technology, represent display device block chart.In Fig. 1
In, display device 1 includes taking unit 10, display module 20 and processing unit 30, wherein processing unit 30 respectively with capture
Unit 10 and display module 20 are electrically connected with.In addition, processing unit 30 also include human face recognition module 302, computing module 304 with
And adjusting module 306, wherein computing module 304 is electrically connected with human face recognition module 302 and adjusting module 306 respectively.More
For body, display module 20 is electrically connected with the adjusting module 306 in processing unit 30.
Fig. 1 is refer to equally.Taking unit 10 in Fig. 1 is its capture list for capturing the image before display device 1
Unit 10 is pick-up lenss or the pick-up lenss without sensor (sensor).Processing unit 30 is picked according to taking unit 10
The image for taking being processed to image and be analyzed, and according to the result of analysis adjusting the display picture ratio of display device 1
Example.Specifically, the human face recognition module 302 in processing unit 30 is to recognize in image whether have face.Computing module
304 is that this result is sent to display by the result after calculating for calculating the distance between face and display device 1
Module 20, display module 20 is adjusted and controlled by adjusting module 306 will be in the aspect ratio shown by display device 1.
Then, refer to Fig. 2.Fig. 2 be according to disclosed herein technology, represent and capture shadow in front of a display device
Picture, to judge whether the step of adjusting the display picture ratio of display device with face flow chart.And for coordinating Fig. 1
It is bright.First, step 40, pick-up image.In this step, using taking unit 10 capturing the image before display device 1.Connect
, step 42, analyze image and judge whether there is face in this image.In step 42, human face recognition module 302 utilizes people
Face recognizes algorithm to find out the face in image, if picking out with face, carries out step 44；If picking out nobody
Face, then return to step 40, again pick-up image.Here, it is noted that whether judging image using human face recognition algorithm
Position with face or face is widely used in correlative technology field, and how to pick out in image and be
The no technical characteristic with face not for the present invention, therefore, do not add to state the Computing Principle of human face recognition algorithm.
According to above-mentioned steps 42, if having face in analyzing image, step 44 is carried out, the wheel of face is calculated and judge
The distance between wide size and display device are conformance with standard distances, if between the size and display device of the profile of face
Distance does not meet gauged distance, then carry out step 48, adjusts the display picture ratio of display device.If additionally, the profile of face
The distance between size and display device conformance with standard apart from conformance with standard distance, then carry out step 46, maintain screen current
Display picture ratio.Here is noted that the gauged distance between face and display device 1 refers to display device 1
Three times of picture longitudinal length.For example, if display device 1 is 43 cun of LCD Panel, the width of its display device 1
For 571 centimetres (mm), therefore gauged distance is three times of the picture longitudinal length of display device 1, then be 571 × 3, its normal pitch
From for 1713 centimetres.Again as a example by the LCD Panel by display device 1 for 49 cun, the width of its 49 cun of display device 1 is
646 centimetres, then gauged distance is 646 × 3, then be 1938 centimetres.That is, defined gauged distance meeting in the present invention
Change with the display device 1 of different size size, this is also in that picture shown by the display device 1 of different size size
Face ratio is different, so needing with the size of display device 1 to change.In addition, to illustrate that, although it is same size
Display device 1, such as 49 cun liquid crystal indicators 1, but due to different labels LCD Panel set by longitudinal direction it is wide
Degree is also different, therefore, it is to be used as face and display device with the longitudinally wide three times of display device 1 in the present invention
Gauged distance between 1.
When computing module 304 is calculated and judges that the distance between the face before display device 1 and display device 1 is not inconsistent
Standardization distance, that is, when not meeting the definition of longitudinally wide three times of display device 1, then adjusting module 306 is for will show
Aspect ratio in display device 1 is adjusted, and then the aspect ratio after adjustment is included showing by display module 20 again
On device 1.For example, if computing module 304 calculate and judge it is captured to image in face and display device 1 it
Between distance be less than gauged distance, be that people is shorter with the distance between display device 1, as shown in Figure 3A.In order to allow face and
Or other images outside face can also clearly show that in display device 1, then adjusting module 306 will be displayed in display
Aspect ratio on device 1 is adjusted diminution so that the face in the shown image in display device 1 of display module 20
It is unlikely to whole display device 1 and just only sees the size of a face or face to have exceeded the aspect ratio for showing.Such as
Fruit computing module 304 calculate and judge it is captured to image in the distance between face and display device 1 more than standard
Distance, it means that the distance between people and display device 1 farther out, as shown in Figure 3 B.In order to face can be clearly showed that
In display device 1, then adjusting module 306 is displayed on the amplification of the aspect ratio in display device 1 so that display module 20 exists
Face in image can be clearly showed that in display device 1, and be unlikely to because between face and display device 1
It is distant so that the face gone out shown by display device 1 is very little.
Next referring to Fig. 4 A.Fig. 4 A be according to disclosed herein technology, represent it is aobvious to adjust using distance weighting
The step of display picture ratio of showing device flow chart.In Figure 4 A, step 60, pick-up image.Then step 62, analyzes image
And whether there is face in judging image.And then in step 64, obtain image between multiple faces and display device away from
From.Then, step 66, according in image between display device with same distance the most face image of multiple with calculate away from
From weight.Step 68, adjusts the display picture ratio of display device according to distance weighting.
For example, as shown in Figure 4 B, many individuals stand before display device 1 in figure 4b, some distance display devices 1
It is relatively near, some farther out, and have how personal identical with the distance between display device 1, in order to have between display device 1
The most face of multiple for having same distance is displayed in display device 1 as the object for showing, taking unit 10 (as shown in Figure 1)
Image before display device 1 is captured.Then, whether there is face in the analysis of human face recognition module 302 image.With this
For embodiment, there are multiple faces in image, and have with the distance between display device 1 and far have near.Then, computing module
304 (as shown in Figure 1) will calculate the distance between every face and display device 1 according to the face of these in image, such as
Represented D1 in Fig. 4 B.Then, the most face image of multiple with same distance between display device 1 is found out, is such as schemed
Represented P in 4B.Then then a distance weighting is come with the most face of multiple with same distance between display device 1
It is multiplied.Then, adjusting module 306 (as shown in Figure 1) is adjusted using the distance weighting after multiplication and is displayed in display device 1
Aspect ratio.If here is noted that before display device 1, there are multiple distance weightings, then with the maximum of distance weighting
It is used as the Main Basiss of the display picture ratio of adjustment display device 1.Finally, display module 20 (as shown in Figure 1) is according to tune
Aspect ratio after whole, using multiple faces with same distance as the main picture for showing, and is displayed in display device 1
On.
Next referring to Fig. 5 A.Fig. 5 A be according to disclosed herein technology, represent the wheel using the face of maximum
The step of wide width and height are to adjust display picture ratio on the display apparatus flow chart.In fig. 5, step 70, picks
Take image.Then step 72, analyzes image and whether has face in judging image.Then in step 74, in acquirement image most
The width of the profile of the face of big and height.In this step, it is that the maximum face opened is shown as main using in image
Object, therefore, the face of maximum is looked in image using human face recognition module 302.Then step 76, opens according to this maximum
Face profile width and height adjusting the display picture ratio of display device.In this step, due to main display
Object based on the face of maximum in image, therefore to be adjusted in display device 1 with the face of maximum in image
Shown aspect ratio.
For example, as shown in Figure 5 B, there are many personal stations before display device 1, taking unit 10 is (as shown in Figure 1) to be captured
After image before display device 1, human face recognition module 302 (as shown in Figure 1) judges whether there is face in this image.
Then utilize computing module 304 (as shown in Figure 1) to obtain the width W and height L of the profile of the face of maximum in image.
For this embodiment, the profile of face varies, and everyone is different for the definition of the profile size of face, therefore at this
In embodiment be with image in each face profile width W and height L making a decision.Then, adjusting module 306
The result calculated by computing module 304 (as shown in Figure 1) by (as shown in Figure 1), the profile of the face opened according to this maximum
Width W and height L is adjusting the display picture ratio is displayed in by display device 1.Finally, display module 20 (as shown in Figure 1)
Object is shown as main using the face with maximum, and is displayed in display device 1.
Next referring to Fig. 6 A.Fig. 6 A be according to disclosed herein technology, represent using face profile it is average
The step of width and average height are to adjust the display picture ratio of display device flow chart.Refer to Fig. 1 simultaneously in the lump.In Fig. 6 A
In, step 80, pick-up image.Then step 82, analyzes image and whether has face in judging image.And then in step
84, obtain the width and height of the profile of multiple faces in image.Step 86, by the width of the profile of multiple faces and height phase
In addition after divided by face quantity obtaining the mean breadth of the profile of multiple faces with height.Then, step 88, according to multiple
The mean breadth and height of the profile of face is adjusting the display picture ratio of display device.
For example, as shown in Figure 6B, many individuals stand before display device 1 in fig. 6b, some distance display devices 1
It is relatively near, some farther out, and have how personal identical with the distance between display device 1, now in order to will be before display device 1
The image for being occurred be shown in display device 1, taking unit 10 (as shown in Figure 1) is to the shadow before display device 1
As being captured.Then, whether there is face in the analysis image (as shown in Figure 1) of human face recognition module 302.Come with this embodiment
Say there are multiple faces in image, and have with the distance between display device 1 and far have near.Then, computing module 304 will
It is added according to the width W1 ... Wn and height L1 ... Ln of the profile of these faces in image and divided by the quantity (n of face
It is individual), obtain the average height and mean breadth of the profile of multiple faces.Then, adjusting module 306 is (as shown in Figure 1) utilizes
The average height and mean breadth of multiple faces is adjusting the display picture ratio in display device 1, finally, display module 20
(as shown in Figure 1) is according to the aspect ratio after adjustment, that is, multiple faces using these before display device 1 show as main
The picture for showing, and be displayed in display device 1.
According to the above embodiments, the present invention be using taking unit 10 obtaining the image before display device 1, and
Analyze and judge whether there is face in image using human face recognition module 302, if having, according to face and display device
1 distance, the number of face, the size of the profile of face or mean breadth and average height, adjust according to the needs of user
The display picture ratio of whole display device 1.
Claims (8)
1. a kind of method of adjust automatically display device display picture ratio, it is characterised in that include：
Capture an image；
The image is analyzed, to judge whether there is at least one face in the image；And
Calculate whether between the size and a display device of a profile of the face one distance meets a gauged distance, if it is not,
A display picture ratio of the display device is adjusted then.
2. the method for claim 1, it is characterised in that the gauged distance is the three of a longitudinal length of the display device
Times.
3. the method for claim 1, it is characterised in that filled according to size and the display of the profile for calculating the face
The step of whether distance between putting meets the gauged distance to adjust the display picture ratio includes：
Obtain a width and a height of the profile of the face；
A mean breadth and an average height of the profile of the face are obtained, wherein the mean breadth and the average height are tables
Show and the width of the profile of the face and the height are added and divided by the quantity of the face；And
The mean breadth and the average height of the profile of the face are compared with the gauged distance, judges whether to meet the mark
Quasi- distance, if not meeting the gauged distance, adjusts the display picture ratio of the display device.
4. the method for claim 1, it is characterised in that filled according to size and the display of the profile for calculating the face
The step of whether distance put meets the gauged distance to adjust the display picture ratio of the display device includes：
Obtain a width and a height of the profile of a maximum face；And
Obtain the display picture ratio of the width and the height adjustment display device of the profile of the maximum face.
5. the method for claim 1, it is characterised in that filled according to size and the display of the profile for calculating the face
The step of whether distance between putting meets the gauged distance to adjust the display picture ratio of the display device includes：
Obtain a width and a height of the face；
Judge that the face, whether between the display device for same distance, is if so, then multiplied to a distance weighting；And
The display picture ratio of the display device is adjusted according to a maximum of the distance weighting.
6. a kind of display device with adjust automatically display picture ratio, it is characterised in that include：
One taking unit, to obtain an image；
One human face recognition module, according to the image judging in the image whether there is at least one face or judge the image
In between the display device with same distance most faces；
One computing module, calculates a mean breadth and an average height of a profile of the face or according to judgement according to the face
Go out in the image and there are most faces of same distance to calculate a distance weighting between the display device；
One adjusting module, mean breadth average height of the profile of the face calculated according to the computing module or
It is the distance weighting adjusting a display picture ratio of the display device；And
One display module, shows after adjustment in the display device according to the display picture ratio adjusted by the adjusting module
The image.
7. there is the display of adjust automatically display picture ratio as claimed in claim 6, it is characterised in that the taking unit
For pick-up lenss.
8. there is the display of adjust automatically display picture ratio as claimed in claim 6, it is characterised in that the taking unit
For the not pick-up lenss with sensor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957733.3A CN106529449A (en) | 2016-11-03 | 2016-11-03 | Method for automatically adjusting the proportion of displayed image and its display apparatus |
| TW106103932A TWI671712B (en) | 2016-11-03 | 2017-02-07 | Method for adjusting the aspect ratio of the display and display device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957733.3A CN106529449A (en) | 2016-11-03 | 2016-11-03 | Method for automatically adjusting the proportion of displayed image and its display apparatus |
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| CN106529449A true CN106529449A (en) | 2017-03-22 |
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| CN201610957733.3A Pending CN106529449A (en) | 2016-11-03 | 2016-11-03 | Method for automatically adjusting the proportion of displayed image and its display apparatus |
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| CN (1) | CN106529449A (en) |
| TW (1) | TWI671712B (en) |
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| CN107633398A (en) * | 2017-08-24 | 2018-01-26 | 阿里巴巴集团控股有限公司 | Method for displaying image and device and electronic equipment |
| US11044394B2 (en) | 2017-08-24 | 2021-06-22 | Advanced New Technologies Co., Ltd. | Image display method and device, and electronic device |
| US11064112B2 (en) | 2017-08-24 | 2021-07-13 | Advanced New Technologies Co., Ltd. | Image display method and device, and electronic device |
| CN110851032A (en) * | 2019-11-06 | 2020-02-28 | 北京字节跳动网络技术有限公司 | Display style adjustment method and device for target device |
| CN114327216A (en) * | 2020-09-25 | 2022-04-12 | 宏碁股份有限公司 | Image display device and definition adjusting method thereof |
| CN114327216B (en) * | 2020-09-25 | 2023-08-22 | 宏碁股份有限公司 | Image display device and definition adjusting method thereof |
| CN114816641A (en) * | 2022-05-09 | 2022-07-29 | 海信视像科技股份有限公司 | Display device, multimedia content display method, and storage medium |
| CN117953834A (en) * | 2024-03-27 | 2024-04-30 | 安徽触威电子科技有限公司 | Display control method and system for fireproof display screen |
| CN117953834B (en) * | 2024-03-27 | 2024-05-28 | 安徽触威电子科技有限公司 | Display control method and system for fireproof display screen |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI671712B (en) | 2019-09-11 |
| TW201820263A (en) | 2018-06-01 |
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