CN102254267B - Outdoor media audience quantity analyzing method and device - Google Patents
Outdoor media audience quantity analyzing method and device Download PDFInfo
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- CN102254267B CN102254267B CN 201110118272 CN201110118272A CN102254267B CN 102254267 B CN102254267 B CN 102254267B CN 201110118272 CN201110118272 CN 201110118272 CN 201110118272 A CN201110118272 A CN 201110118272A CN 102254267 B CN102254267 B CN 102254267B
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Abstract
The invention discloses an outdoor media audience quantity analyzing method and device. The method comprises the following steps of: (1) setting a speed threshold value which is used for judging whether moving objects in outdoor media visual areas are audiences or not; (2) acquiring continuous images in the outdoor media visual areas; (3) carrying out moving object detection on the continuous images and acquiring moving directions and moving speed of the moving objects in the outdoor media visual areas; and (4) judging the moving objects with the moving directions facing outdoor media and the moving speed within the speed threshold value as the audiences of the outdoor media and then counting the quantity of the audiences of the outdoor media. The device comprises an image acquiring unit (1), a moving object detecting unit (2) and an audience analyzing and processing unit (3). The method and the device disclosed by the invention have the advantages of high counting accuracy, wide application range, simple structure and low cost.
Description
Technical field
The present invention relates to the commercial audience analysis field, be specifically related to a kind of outdoor media audience quantity analyzing method and device.
Background technology
Outdoor media refers to be positioned at channel or the outdoor locations such as square, downtown area, traffic main artery, business premises, public transport, aviation terminal, train station, take plane air brushing, electronic display, projection or video wall etc. as display terminal, show or broadcast to comprise in picture, literal, video, sound, the animation etc. the perhaps broadcasting media system of public information.The outdoor media display mode is abundant, the picture impulsive force is strong, has remarkable advertising, information transmission effect; Simultaneously, help to mould Urban Space Environment, build urban look, thereby become gradually the requisite system of Process of Urbanization Construction.At present domestic and international outdoor media terminal quantity rapid development, and be continuous growing trend.The market business pattern of outdoor media, distribution of interests pattern have entered comparatively standard and ripe developing stage.
The classic method that the audient of outdoor media is analyzed mainly contains: the one, by general flow of the people assessment, estimate that each media termination has How many people to pass through every day, and period distribution of the stream of people, age composition, Sex distribution etc., calculate on this basis cost per thousand; The 2nd, engage third party research firm to carry out survey, thus the assessment media effects.But its science of this method and objectivity are difficult to ensure; Genuine and believable audience data can't be provided.Appear in recent years the sniffers such as outdoor media terminal installation infrared, electric field, microwave and detect whether people's process is arranged, the quantity that these class methods can only the rough Statistics people can not judge whether the people is watching media, and it is very low to be used for adding up audient's accuracy.Perhaps adopt the image in camera picked-up media termination dead ahead, determine whether and watching by detecting people's face, this method accuracy is high, but be only applicable to the situation in long and narrow space, when the audient relatively concentrates such as stair advertisement, be not suitable for the situation of the space opening such as crossing, audient's complicated movement.
Summary of the invention
The technical problem to be solved in the present invention is the shortcoming for above-mentioned prior art, and high, applied widely, simple in structure, the with low cost outdoor media audience quantity analyzing method of a kind of statistical accuracy and device are provided.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of outdoor media audience quantity analyzing method, implementation step is as follows:
1) set to be used for judging that whether moving target in the outdoor media viewing area is audient's threshold speed;
2) obtain consecutive image in the outdoor media viewing area;
3) consecutive image is carried out moving object detection, obtain direct of travel and the gait of march of moving target in the outdoor media viewing area;
4) direct of travel is judged to be the outdoor media audient towards the moving target that outdoor media and speed fall into described threshold speed, and outdoor media audience quantity is added up.
Further improvement as the inventive method:
The concrete steps of described moving object detection comprise:
I) set the moving target model;
II) each pixel of consecutive image is added up, obtain the background image model;
III) each frame and the background image model with consecutive image subtracts each other, and obtains the motor image prime information;
IV) motor image prime information and moving target model are mated, obtain the moving target of each frame of consecutive image;
V) displacement that relatively same moving target occurs in two width of cloth images of consecutive image is obtained the direct of travel of moving target according to the direction of displacement, according to the poor gait of march of obtaining moving target of shooting time between displacement and two width of cloth images.
Described step 1) comprises during the setting speed threshold value setting and be used for judging that whether the pedestrian is audient's First Speed threshold value and for judging whether vehicle is audient's second speed threshold value; Described step 4) at first judge the type of moving target in, the pedestrian who then direct of travel is fallen into the First Speed threshold value towards outdoor media and speed is judged to be the outdoor media audient, direct of travel is judged to be the outdoor media audient towards the vehicle that outdoor media and speed fall into the second speed threshold value.
Described First Speed threshold value be 2 kms/hour more than; Described second speed threshold value be 5 kms/hour more than.
The present invention also provides a kind of outdoor media audience quantity analytical equipment, and it comprises:
Image acquisition units is used for gathering the consecutive image in the outdoor media viewing area;
The moving object detection unit, direct of travel and the gait of march of each moving target in the Image Acquisition outdoor media viewing area that is used for gathering according to described image acquisition units;
The audience analysis processing unit judges for direct of travel and the gait of march of each moving target of exporting according to described moving object detection unit whether moving target is added up as the outdoor media audient and to outdoor media audience quantity;
Described sequential image acquisition unit, moving object detection unit and audience analysis processing unit link to each other successively.
Further improvement as apparatus of the present invention:
Described image acquisition units comprises that at least one is used to obtain the camera of consecutive image.
Outdoor media audience quantity analyzing method of the present invention has following advantage: the present invention is by analyzing direct of travel and the gait of march of moving target in the outdoor media viewing area, direct of travel is judged to be the outdoor media audient towards the moving target that outdoor media and speed fall into threshold speed, and outdoor media audience quantity added up, accurately analyze for moving target, can obtain fast more accurately audience information, accurately and timely the audient of outdoor media added up, have the statistical accuracy height, applied widely, simple in structure, advantage with low cost.
Therefore outdoor media audience quantity analytical equipment of the present invention also possesses the corresponding advantage of the invention described above outdoor media audience quantity analyzing method owing to possess the structure corresponding with outdoor media audience quantity analyzing method of the present invention.
Description of drawings
Fig. 1 is the schematic flow sheet of outdoor media audience quantity analyzing method of the present invention.
Fig. 2 is the principle schematic of outdoor media audience quantity analyzing method of the present invention.
Fig. 3 is the framed structure synoptic diagram of outdoor media audience quantity analytical equipment of the present invention.
Embodiment
The implementation step of embodiment of the invention outdoor media audience quantity analyzing method is as follows:
1) set to be used for judging that whether moving target in the outdoor media viewing area is audient's threshold speed;
2) obtain consecutive image in the outdoor media viewing area;
3) consecutive image is carried out moving object detection, obtain direct of travel and the gait of march of moving target in the outdoor media viewing area;
4) direct of travel is judged to be the outdoor media audient towards the moving target that outdoor media and speed fall into threshold speed, and outdoor media audience quantity is added up.
In the present embodiment, the concrete steps of moving object detection comprise:
I) set the moving target model;
II) each pixel of consecutive image is added up, obtain the background image model;
III) each frame and the background image model with consecutive image subtracts each other, and obtains the motor image prime information;
IV) motor image prime information and moving target model are mated, obtain the moving target of each frame of consecutive image;
V) displacement that relatively same moving target occurs in two width of cloth images of consecutive image is obtained the direct of travel of moving target according to the direction of displacement, according to the poor gait of march of obtaining moving target of shooting time between displacement and two width of cloth images.
As shown in Figure 2, picture frame 5 is the image of the outdoor media viewing area of first time point shooting, picture frame 6 is the image of the outdoor media viewing area of second time point shooting, position 7 is the position of first time point moving target (pedestrian), position 8 is the position of second time point moving target (pedestrian), second time point is more late than first time point, the direct of travel that can judge thus moving target (pedestrian) is towards outdoor media 4, and gait of march then can be according to getting final product divided by the mistiming of second time point and first time point apart from S between position 7 and the position 8.
Frame differential method and the most widely used detection method of the present vision system of background subtraction religious services or rituals based on difference image in the present embodiment, remove beyond the said method, can also adopt the smooth method of light stream, frame differential method, background subtraction method etc., above-mentioned moving object detection belongs to existing known technology, can directly adopt among the present invention program, therefore the specific implementation process of these methods no longer be described in detail.
The outdoor media viewing area comprises all zones that have potential audience and can see these media, and the consecutive image of outdoor media viewing area can absorb by camera head usually; Camera head can be one, also can be a plurality of.Camera head is installed near the media, and for taking audient's picture of better quality, the concrete infield of the bases such as its aperture, focal length, visual angle is adjusted.For example, for the large board media that are installed in highway, analyze its audient and at first need add up the vehicle fleet size next from seeing this billboard direction.Can install camera additional apart from this billboard 20-150 rice, the rolling stock with on can this road of clear shooting carries out moving object detection to it, and the vehicle fleet size that statistics is come from seeing this billboard direction can guestimate audient situation.
When obtaining the consecutive image in the outdoor media viewing area, both can by obtaining the form of video, also can obtain the form of discrete picture.Video information is comprised of the image of some frame static state, the consecutive image that it is comprised of each frame in essence.Therefore by the every two field picture in the video information is carried out moving object detection, obtain audient's trace information, the predetermined decision criterion is compared with detecting trace information, thereby obtain program watcher information.Owing to come the discriminatory analysis audient by the consecutive image that obtains in the outdoor media viewing area, it is flexible therefore to obtain the sequential chart the position of image, goes for the outdoor media of various complicated geographical environments, has advantage applied widely.And by obtaining the consecutive image in evening, even can also the audient in night be added up.When outdoor media audience quantity is added up, can multiply by an empirical value to the quantity of adding up in conjunction with actual conditions, thereby obtain more accurately audience size.
For the Accurate Analysis audience information, treat with a certain discrimination for the difference of moving target.Step 1) comprises during the setting speed threshold value setting and be used for judging that whether the pedestrian is audient's First Speed threshold value and for judging whether vehicle is audient's second speed threshold value; Step 4) at first judge the type of moving target in, the pedestrian who then direct of travel is fallen into the First Speed threshold value towards outdoor media and speed is judged to be the outdoor media audient, direct of travel is judged to be the outdoor media audient towards the vehicle that outdoor media and speed fall into the second speed threshold value.In the present embodiment, the First Speed threshold value be 2 kms/hour more than; The second speed threshold value be 5 kms/hour more than.
As shown in Figure 3, the outdoor media audience quantity analytical equipment in the embodiment of the invention comprises:
Image acquisition units 1 is used for gathering the consecutive image in the outdoor media viewing area;
Moving object detection unit 2, direct of travel and the gait of march of each moving target in the Image Acquisition outdoor media viewing area that is used for gathering according to image acquisition units 1;
Audience analysis processing unit 3 judges for direct of travel and the gait of march of each moving target of exporting according to moving object detection unit 2 whether moving target is added up as the outdoor media audient and to outdoor media audience quantity;
Sequential image acquisition unit 1, moving object detection unit 2 and audience analysis processing unit 3 link to each other successively.
In the present embodiment, image acquisition units 1 comprises that at least one is used to obtain the camera of consecutive image.Image acquisition units 1 is positioned at the media viewing area, with media towards vertical, take the audient's image through these media.Imagination device camera lens can adopt wide-angle lens, also adopt other setting angles, to guarantee the clear audient who photographs respective regions, suitably dwindle the sharpness that coverage can promote shooting, complex environment (such as the crossroad) also can adopt respectively photographing process of many camera heads.The embodiment of the invention is particularly useful for that the space is open, in the outdoor media environment of people's flow path direction complexity, typical the application is the outdoor large electrical screen of intersection, certainly also is applicable to other media play scenes.
The above only is preferred implementation of the present invention, and protection scope of the present invention is not limited in above-mentioned embodiment, and every technical scheme that belongs to the principle of the invention all belongs to protection scope of the present invention.For a person skilled in the art, some improvements and modifications of under the prerequisite that does not break away from principle of the present invention, carrying out, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. outdoor media audience quantity analyzing method is characterized in that implementation step is as follows:
1) set to be used for judging that whether moving target in the outdoor media viewing area is audient's threshold speed;
2) obtain consecutive image in the outdoor media viewing area;
3) consecutive image is carried out moving object detection, obtain direct of travel and the gait of march of moving target in the outdoor media viewing area;
4) direct of travel is judged to be the outdoor media audient towards the moving target that outdoor media and speed fall into described threshold speed, and outdoor media audience quantity is added up;
The concrete steps of described moving object detection comprise:
I) set the moving target model;
II) each pixel of consecutive image is added up, obtain the background image model;
III) each frame and the background image model with consecutive image subtracts each other, and obtains the motor image prime information;
IV) motor image prime information and moving target model are mated, obtain the moving target of each frame of consecutive image;
V) displacement that relatively same moving target occurs in two width of cloth images of consecutive image is obtained the direct of travel of moving target according to the direction of displacement, according to the poor gait of march of obtaining moving target of shooting time between displacement and two width of cloth images;
Described step 1) comprises during the setting speed threshold value setting and be used for judging that whether the pedestrian is audient's First Speed threshold value and for judging whether vehicle is audient's second speed threshold value; Described step 4) at first judge the type of moving target in, the pedestrian who then direct of travel is fallen into the First Speed threshold value towards outdoor media and speed is judged to be the outdoor media audient, direct of travel is judged to be the outdoor media audient towards the vehicle that outdoor media and speed fall into the second speed threshold value.
2. outdoor media audience quantity analyzing method according to claim 1 is characterized in that: described First Speed threshold value be 2 kms/hour more than; Described second speed threshold value be 5 kms/hour more than.
3. device of realizing outdoor media audience quantity analyzing method claimed in claim 1 is characterized in that it comprises:
Image acquisition units (1) is used for gathering the consecutive image in the outdoor media viewing area;
Moving object detection unit (2), direct of travel and the gait of march of each moving target in the Image Acquisition outdoor media viewing area that is used for gathering according to described image acquisition units (1);
Audience analysis processing unit (3) judges for direct of travel and the gait of march of each moving target of exporting according to described moving object detection unit (2) whether moving target is added up as the outdoor media audient and to outdoor media audience quantity;
Described sequential image acquisition unit (1), moving object detection unit (2) and audience analysis processing unit (3) link to each other successively;
Described image acquisition units (1) comprises that at least one is used to obtain the camera of consecutive image.
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| CN 201110118272 CN102254267B (en) | 2011-05-09 | 2011-05-09 | Outdoor media audience quantity analyzing method and device |
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| CN 201110118272 CN102254267B (en) | 2011-05-09 | 2011-05-09 | Outdoor media audience quantity analyzing method and device |
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| CN102254267B true CN102254267B (en) | 2013-01-09 |
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Families Citing this family (3)
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| TWI649709B (en) * | 2017-06-30 | 2019-02-01 | 艾爾塔科技股份有限公司 | Advertisement audience dynamical detection circuit, computer program product, and related method for estimating quantity of out-of-home (ooh) advertisement audiences passing through specific location in specific time period |
| CN110322294B (en) * | 2019-07-08 | 2022-05-17 | 秒针信息技术有限公司 | Method and device for determining audience number, electronic equipment and storage medium |
| CN113253841A (en) * | 2021-05-17 | 2021-08-13 | 南京林业大学 | Intelligent control method and device for advertisement screen |
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2011
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Non-Patent Citations (2)
| Title |
|---|
| 目标跟踪与背景减除算法研究;陈鹏;《浙江大学博士学位论文》;20101231;第2-3页，50-56页，98-106页 * |
| 陈鹏.目标跟踪与背景减除算法研究.《浙江大学博士学位论文》.2010, |
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