KR20100040026A - Method for audience measurement of interactive tv contents and apparatus and system using thereof - Google Patents

Abstract

PURPOSE: An audience measurement method of interactive TV contents, an audience measurement device using the same, and a system thereof are provided to analyze an image which is captured through a camera which is connected with an interactive TV, thereby investigating the viewing rate of the interactive TV contents. CONSTITUTION: An image input unit(120) receives a viewer image from a camera(110). The viewer image is an image in which viewers who watch interactive TV contents are captured. A viewer information acquisition unit(130) extracts a viewer face range from the viewer image and acquires viewer information which includes the number of viewers of the interactive TV contents using the viewer face range. A viewer information transmission unit(170) transmits the viewer information. The viewer information comprises the sex, age or viewing concentration of each viewer.

Description

Method for audience rating research of interactive TV content and apparatus and system for survey rating using same {Method for audience measurement of Interactive TV contents and apparatus and system using Julia}

The present invention relates to a viewer rating research method of the interactive TV content, and to an audience rating survey apparatus and system using the same. More specifically, the present invention relates to a method for investigating an audience rating of interactive TV content, and an apparatus and system for investigating an audience rating using the same, by analyzing an image photographed by a camera connected to the interactive TV.

Interactive TV refers to providing various interactive services such as internet and e-commerce as well as broadcasting program related information and weather information such as weather, news and traffic through TV using data broadcasting function based on digital broadcasting. Recently, the popularity of IPTV (Internet Protocol Television), which is a kind of two-way TV, is increasing.

IPTV is a communication broadcasting convergence service that provides various multimedia contents in both directions at the request of a user through a high-speed internet network, a content server storing content for IPTV, a set-top box connected to a content server and an Internet line, And a display device connected to the set-top box, and when the user selects content that he / she wants to watch through the set-top box connected to the display device, the set-top box is connected to the set-top box and the content server connected to the Internet line. Service is provided to the user by transmitting the content through the display device.

In this interactive TV, the viewership of the content provided by the interactive TV is used as an important reference for maintaining the content, supply of new content, and placement of interstitial advertisements inserted before the content is played. It is required to identify a more accurate viewer rating for each content.

The conventional method of surveying audience ratings in over-the-air broadcasting sets up a panel for surveying some samples among general viewers, and attaches a small device called people meter to the TV set of the corresponding household. As a result of operating a people meter to integrate the data recorded in the people meter to investigate the viewer rating, there is a problem that the real-time processing of the viewer rating is difficult and the actual viewer rating investigation is not made.

In order to solve the above problems, the Republic of Korea Patent Publication No. 2001-0097950 installed a camera that can shoot the viewer on the TV receiver to take an image and then take the photographed image and channel information through a separate channel recognizer through the Internet After the transmission to the research institute server has been disclosed a method for analyzing the viewer rating in the rating agency server.

However, in the above method, since the photographed image is transmitted to the viewer rating research server, there is a problem that the interactive service between the viewer and the service provider cannot be performed smoothly due to excessive upload load on the network.

 In addition, there is a problem that a personal information leakage problem occurs because the image taken by the viewer watching the TV is transmitted directly to the viewer rating research server located outside.

Disclosure of Invention The present invention has been made to solve the above problems, and a method for investigating an audience rating of two-way TV content by analyzing an image photographed by a camera connected to a two-way TV and an audience rating research apparatus and system using the same The purpose is to provide.

According to an aspect of the present invention, there is provided a viewer rating research method for interactive TV content, including: a) receiving a viewer image which is an image of a viewer watching the interactive TV content; (b) extracting at least one viewer face region from the viewer image and acquiring viewer information including the number of viewers of the interactive TV content using the viewer face region; And (c) transmitting the viewer information.

In addition, the apparatus for investigating viewership of interactive TV content according to the present invention includes an image input unit for receiving a viewer image which is an image of a viewer watching the interactive TV content; A viewer information obtaining unit which extracts at least one viewer face region from the viewer image and obtains viewer information including the number of viewers of the interactive TV content using the viewer face region; And a viewer information transmitter for transmitting the viewer information.

In addition, the viewer rating survey system of the interactive TV content according to the present invention, the viewer rating survey apparatus of the interactive TV content according to any one of claims 7 to 11; And an audience rating determiner configured to determine an audience rating of the interactive TV content by using the transmitted viewer information.

According to the present invention, in the survey of the viewership of the interactive TV content, not only the viewer rating of the interactive TV content that the viewer is watching, but also the viewership of the interactive TV content, the gender, age of the viewer, and the viewer's concentration of the interactive TV content Since it is possible to investigate, it is possible to more accurately investigate the viewer's preference for interactive TV content.

In addition, by analyzing only the data analyzed by the image taken through the camera to the outside to examine the viewership of the two-way TV content by analyzing the data so as not to burden the interactive service between the user and the service provider, You can investigate.

In addition, only the data analyzing the photographed image, not the photographed image, is transmitted to the outside to examine the viewership of the interactive TV content, thereby preventing personal information that may be included in the photographed image from leaking to the outside.

In addition, the number of viewers, gender, and age ranges for each interactive TV content can be identified, which can be used as an important reference for the supply of advertising or interactive TV contents by interactive TV service providers. It is also possible to be useful when deciding when to create interactive TV content or insert an intermediate advertisement.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, preferred embodiments of the present invention will be described below, but the technical idea of the present invention may be implemented by those skilled in the art without being limited or limited thereto.

1 is a block diagram of a system for surveying audience ratings of interactive TV content according to a preferred embodiment of the present invention.

As shown in FIG. 1, the viewer rating research system 10 of the interactive TV content includes a viewer rating research apparatus 100 and an audience rating determiner 200 of the interactive TV content.

The detailed configuration of the viewer rating research apparatus 100 of the interactive TV content is as follows.

The camera unit 110 is connected to the two-way TV (I), the viewer selects the two-way TV content that you want to watch through the two-way TV (I) to operate from the start point to the end point to watch the two-way TV Photograph viewers watching the content. In this case, the connection method between the camera unit 10 and the bidirectional TV I may be a wired USB or IEEE1394 type and a wireless type of Bluetooth or WI-FI.

The image input unit 120 receives a viewer image. In this case, the viewer image may be an image of a viewer who views the content from the start point to the end point of the interactive TV content by the camera unit 110. In addition, the image input unit 120 may transmit the acquisition time of the viewer image and the reproduction time of the interactive TV content to the viewing information transmission unit 160.

The viewer information obtaining unit 130 extracts at least one viewer face region from the viewer image and obtains viewer information including the number of viewers of the interactive TV content using the viewer face region. Here, the viewer information may further include gender, age group, or viewer's view concentration of each of the viewers for the interactive TV content.

In addition, the viewer information obtaining unit 130 receives the viewer image, divides the viewer image into a still image in a frame unit, and extracts at least one or more viewer face areas included in the still image to viewers of the interactive TV content. A face region extractor 140 for determining a number, a personal information calculator 150 for calculating a gender or an age group for each of the viewers using the viewer face region, and the interactive TV content using the viewer face region; And a viewer concentration calculator 160 that calculates a viewer's attention level for each viewer.

In this case, the detailed configuration of the personal information calculating unit 150 will be described below with reference to FIG. 2, and the detailed configuration of the viewing concentration calculator 160 will be described below with reference to FIG. 4.

The viewing information transmitting unit 170 may display the viewer information transmitted from the image input unit 120, the reproduction time of the interactive TV content, or the viewer information transmitted from the viewer information obtaining unit 130 through an internet network. The rating is sent to the rating unit 200.

The viewer rating determiner 200 determines the viewer rating of the interactive TV content using the received acquisition time of the viewer image, the playback time of the interactive TV content, or the viewer information. At this time, the viewer rating determiner 200 is connected to a content providing server (not shown) that provides content to the interactive TV (I) can be provided with a content ID that can distinguish the content selected in the interactive TV (I), The viewer rating of the interactive TV content determined by the determination unit 200 includes a viewer rating per household, the total viewer-based viewer rating, an age-based viewer rating, a gender viewer rating, or a viewer's view concentration of the interactive TV content. can do.

In FIG. 1, the viewer rating research apparatus 100 of the interactive TV content is configured separately from the interactive TV I. However, this is only an example, and the viewer rating research apparatus 100 of the interactive TV content is included in the interactive TV I. It is possible to spherical.

2 is a detailed block diagram of a personal information calculating unit according to a preferred embodiment of the present invention.

As shown in FIG. 2, the personal information calculating unit 150 according to the preferred embodiment of the present invention includes a component determining unit 152, a distance ratio calculating unit 154, a distance ratio database 156, and a distance ratio comparison. Section 158.

The component determiner 152 determines a plurality of face components for each viewer face region from at least one viewer face region extracted from the viewer image. Here, the plurality of facial components may be eyes, nose, mouth, or chin in the viewer face area.

The distance ratio calculator 154 calculates a distance ratio between the plurality of face components. The distance ratio database 156 stores distance ratios between the face components according to age groups or genders in advance, and the distance ratio comparison unit 158 calculates the distance ratio and distance ratio databases (calculated by the distance ratio calculator 154). In 156, the gender or age range of the viewer is determined by comparing the distance ratios between the face components previously stored for each gender or age group.

3A is a reference diagram of a method of determining a gender of a viewer in FIG. 2, and FIG. 3B is a diagram of a method of determining an age range of a viewer in FIG. 2.

As shown in FIG. 3A, the component determiner 152 determines a plurality of face components from the viewer face area F1, and calculates a distance ratio between the plurality of face components by the distance ratio calculator 154. Calculate In this case, the distance between the plurality of facial components is the distance between the center of the left eye and the center of the right eye (a), the distance from the center of the eye to the tip of the nose (b), the distance from the center of the eye to the center of the mouth (c), at the center of the eye It may be a distance to the tip of the jaw (d), the distance from the crown to the tip of the jaw (e), the distance ratio between the plurality of face components are a: b, a: c, a: d, a: e, b: c, b: d, b: e, c: d, c: e, d: e.

By comparing the distance ratio between the plurality of face components calculated by the distance ratio calculation unit 154 and the plurality of face components according to gender previously stored in the distance ratio database 156 The gender of the viewer watching the content may be determined from the viewer face area F1.

As shown in FIG. 3B, the component determiner 152 determines a plurality of face components from the viewer face area F2, and the distance ratio calculator 154 determines a distance ratio between the plurality of face components. Calculate In this case, the distance of the plurality of facial components is the distance (A) between the left eye center and the right eye center (B), the distance between the left nose tip and the right nose tip (B), the distance between the left end of the mouth and the right end of the mouth (C) ), The distance between the center of the eye and the tip of the nose (D), the distance between the center of the eye and the center of the mouth (E), and the distance between the center of the eye and the tip of the chin (F), and the distance ratio between the plurality of facial components is A: B, A: C, A: D, A: E, A: F, B: C, B: D, B: E, B: F, C: D, C: E, C: F, D: E, D: F, E: F.

By comparing the distance ratio between the plurality of face components calculated by the distance ratio calculation unit 154 and the plurality of face components according to the age group previously stored in the distance ratio database 156 The age range of the viewer who watches the content from the viewer face area F2 may be determined.

4 is a detailed block diagram of a viewer concentration calculator according to a preferred embodiment of the present invention.

As shown in FIG. 4, the viewing concentration calculator 160 according to a preferred embodiment of the present invention includes a feature point determiner 162, a bias calculation unit 164, and a viewing concentration calculator 166.

The feature point determiner 162 determines a plurality of feature points from at least one viewer face region extracted from the viewer image. Here, the plurality of feature points may be the center of the eye, the tip of the nose, the center of the mouth, or the left and right ends of the mouth in the viewer face area.

The skew calculation unit 164 calculates the left and right and the up and down skewness of the viewer's face region from the plurality of feature points, and the viewing concentration calculator 166 uses the left and right skewness and the up and down skewness to view. Calculate the concentration

FIG. 5 is a reference diagram for a method of calculating a viewer's concentration in FIG. 4.

As shown in FIG. 5, the feature point determiner 162 includes the center of the eye (c, d), the tip of the nose (b), the center of the mouth (a), and the left and right ends of the mouth (e, f) from the viewer face area F3. ) Is a feature point. The bias calculation unit 164 calculates the left and right and the right and left bias of the viewer face area F3 from the plurality of feature points, wherein the right and left bias is the triangle cba and the triangle dba formed by connecting the plurality of feature points. This can be obtained by comparing the area or by comparing the vector from vertex c to vertex b or vertex a in the triangle cba and the vector from vertex d to vertex b or vertex a in the triangle dba.

In addition, the vertical bias can be calculated according to the degree of the position of the feature point a corresponding to the center of the mouth below or above the line segment ef connecting the left and right ends of the mouth, for example, the position of the feature point a is a line segment When placed on ef, the vertical skew can be calculated as zero.

The viewer's viewing concentration on the interactive TV content calculated by using the left and right and up and down skewness of the viewer face area F3 calculated as described above is expressed by Equation 1 below.

Equation 1

(Here, I is the unit of view concentration in%, A ranges from -90 to 90 degrees with left and right skew, and B ranges from -90 to 90 degrees with up and down skew.)

The viewing concentration calculated as shown in Equation 1 may have a value of at least 20% to a maximum of 100%, and the viewing concentration is 100% indicating that the viewer watching the interactive TV content is watching the interactive TV content in front. Means that.

6 is a flowchart of a viewer rating research method according to a preferred embodiment of the present invention.

As shown in FIG. 6, the viewer rating research method according to the preferred embodiment of the present invention includes the following steps performed in time series in the audience rating research system 10.

In S10 the image input unit 120 receives a viewer image. In this case, the viewer image is connected to the two-way TV (I) and the camera unit 110 that operates from the time when the viewer starts watching the interactive TV content by operating the two-way TV (I) to shoot the viewer It may be one image.

In addition, following the step S10, the image input unit 120 may further include transmitting the acquisition time of the viewer image and the reproduction time of the bidirectional TV content to the viewing information transmitter 170.

In operation S20, the viewer information acquisition unit 130 receives the viewer image, divides the viewer image into a still image in a frame unit, extracts at least one viewer face region included in the still image, and uses the viewer face region. To obtain viewer information including the number of viewers of the interactive TV content. Here, the viewer information may further include gender, age group, or viewer's view concentration of each of the viewers for the interactive TV content. In this case, a detailed flowchart of S20 will be described below with reference to FIG. 7.

In S30, the viewing information transmitter 170 determines an audience rating based on an acquisition time of the viewer image transmitted from the image input unit 120, a reproduction time of the interactive TV content, or the viewer information transmitted from the viewer information acquisition unit 130. Transmission to the unit 200.

In S40, when the viewer rating determiner 200 determines the viewer rating of the interactive TV content by using the acquired acquisition time of the viewer image, the playback time of the content, or the viewer information, the viewer finishes. In this case, the viewer rating determiner 200 is connected to a content providing server (not shown) that provides content to the interactive TV (I) may be provided with a content ID that can distinguish the two-way TV content selected in the interactive TV (I). The viewer rating of the interactive TV content determined by the viewer rating determining unit 200 may include a viewer rating per household for the interactive TV content, a total viewer based viewer rating, an audience rating by age group, a gender viewer rating, or a viewer's concentration of the interactive TV content. Can be.

7 is a detailed flowchart of S20 of FIG. 6 in accordance with a preferred embodiment of the present invention.

As illustrated in FIG. 7, the face region extractor 140 extracts at least one viewer face region from the viewer image to determine the number of viewers of the interactive TV content. In S22a, the component determiner 152 determines a plurality of face components for each viewer face region from the at least one received viewer face region. In this case, the plurality of face components may be eyes, nose, mouth, or chin determined from the viewer face regions F1 and F2 as illustrated in FIGS. 3A and 3B.

In S24a, the distance ratio calculator 154 calculates a distance ratio between the plurality of face components with respect to each viewer face area. In this case, when the gender for each viewer is determined using the viewer face region, as shown in FIG. 3A, the distance between the center of the left eye and the center of the right eye (a), and the distance from the center of the eye to the tip of the nose (b) Calculate the distance from the center of the eye to the center of the mouth (c), the distance from the center of the eye to the tip of the chin (d), and the distance from the crown to the tip of the chin (e), then a: b, a: c, a: d, a The distance ratio between: e, b: c, b: d, b: e, c: d, c: e, and d: e is calculated. When determining an age range for each viewer using the viewer face area, 3B, the distance between the left eye center and the right eye center (A), the distance between the left nose tip and the right nose tip (B), the distance between the left end of the mouth and the right end of the mouth (C), and eyes Calculate the distance between the center of the nose and the tip of the nose (D), the distance between the center of the eye and the center of the mouth (E), and the distance between the center of the eye and the tip of the chin (F), then A: B, A: C, A: D, A : E, A: F, B: C, B: D, B: E, B: F, C: D, C: E, C: F, D: E, The distance ratio between D: F and E: F can be calculated.

In S26a, the distance ratio comparing unit 158 compares the distance ratio calculated in S24a with the distance ratios between the face components previously stored in the distance ratio database 156 according to age group or gender, and then in S28a, respectively. Termination is made when determining the gender or age range for the viewer's face area of.

In S22b, the feature point determiner 162 determines a plurality of feature points for each viewer face area from the received at least one viewer face area. At this time, the plurality of feature points in the viewer's face area (F1) as shown in Figure 5 the center of the eyes (c, d), the tip of the nose (b), the center of the mouth (a), the left and right ends of the mouth (e, f).

In S24b, the skew calculation unit 164 calculates the left and right skew and the up and down skew of the viewer face area F3 for each viewer face area from the plurality of feature points. At this time, the calculation of the left and right offset is compared with the area of the triangle cba and the triangle dba made by connecting the plurality of feature points shown in FIG. 5 or the vector and the triangle from the vertex c to the vertex b or vertex a direction in the triangle cba This can be obtained by comparing the vectors from vertex d toward vertex b or vertex a in dba.

In addition, the degree of up and down bias can be calculated according to the degree in which the position of the feature point a corresponding to the center of the mouth is located below or above the line segment ef connecting the left and right ends of the mouth shown in FIG. 5. When the position of the feature point a lies on the line segment ef, the vertical skew can be calculated as zero.

In S26b, the concentration calculator 166 calculates the viewer's concentration of the interactive TV content for each viewer by using the left and right and the up and down skewness of each viewer's face area. In this case, the viewing concentration may be calculated as in Equation 1 and may have a value of 20% to 100%.

The viewer rating investigation system 10 of the interactive TV content according to the present invention is a viewer connected to the interactive TV from the viewer rating apparatus 100 of the interactive TV content from a starting point of the interactive TV content selected by a user by operating a set-top box. At least one viewer face region is extracted from the viewer image, which is an image photographing the viewer up to the end point, and viewer information including the number of viewers of the interactive TV content is obtained using the viewer face region.

The viewer information is transmitted to the viewer rating determiner 200 through the internet network, and the viewer rating determiner 200 determines the viewer rating for the interactive TV content.

For example, when the viewer rating research system 10 of the interactive TV content and the viewer rating research apparatus 100 of the interactive TV content of the present invention are applied to an IPTV, the set top installed at the viewer home of the viewer rating research apparatus 100 of the interactive TV content is installed in the viewer's home. A viewer that is an image of a viewer who views the IPTV content by the camera unit 110 by connecting the viewer rating apparatus 100 of the interactive TV content to the box or by including the viewer rating apparatus 100 of the interactive TV content in the set-top box. Obtaining viewer information including the number of viewers of the IPTV content using an image, and transmitting the viewer information to the viewer rating determining unit 200 to determine the viewer rating for the IPTV content using the viewer information in the viewer rating determining unit 200. Can be.

Therefore, in the survey of the viewership of the interactive TV content, not only the viewer rating of the interactive TV content that the viewer is watching, but also the number of viewers of the interactive TV content, the gender, age of the viewer, and the viewer's concentration of the interactive TV content are investigated. It is possible to more accurately investigate the viewer's preference for interactive TV content.

In addition, since only the data analyzing the image taken by the camera is transmitted to the viewer rating determiner 200 through the network, the data is analyzed and the viewer rating of the interactive TV content is investigated, thus not burdening the interactive service between the user and the service provider. You can investigate the viewer ratings for interactive TV content without doing so.

In addition, only the data analyzing the photographed image, not the photographed image, is transmitted to the outside to examine the viewership of the interactive TV content, thereby preventing personal information that may be included in the photographed image from leaking to the outside.

In addition, the number of viewers, gender, and age ranges for each interactive TV content can be identified, which can be used as an important reference for the supply of advertising or interactive TV contents by interactive TV service providers. It is also possible to be useful when deciding when to create interactive TV content or insert an intermediate advertisement.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. It will be possible. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

According to the present invention, it is possible to investigate not only the type of interactive TV content viewed by the viewer, but also the number of viewers of the interactive TV content, the age, gender, or the viewer's concentration of the interactive TV content. Since the viewer's preferences can be examined in detail, it can be used in place of a method for investigating the viewer rating of the content used in the conventional IPTV, which is a kind of interactive TV.

1 is a block diagram of a system for surveying ratings of interactive TV content according to a preferred embodiment of the present invention;

2 is a detailed block diagram of a personal information calculating unit according to a preferred embodiment of the present invention;

3A is a reference diagram for a method of determining a gender of a viewer in FIG. 2;

3B is a reference diagram for a method for determining an age range of a viewer in FIG. 2;

4 is a detailed block diagram of a viewer concentration calculator according to a preferred embodiment of the present invention;

5 is a reference diagram for a method of determining a viewer's concentration in FIG. 4, FIG.

6 is a flowchart of a method for investigating viewership of interactive TV content according to a preferred embodiment of the present invention; and

7 is a detailed flowchart of S20 of FIG. 6 according to a preferred embodiment of the present invention.

<Brief description of the main parts of the drawings>

(10): viewership survey system of interactive TV content

100: viewership survey device of interactive TV content

110: camera unit 120 image input unit

130: viewer information acquisition unit 140: face region extraction unit

150: personal information calculation unit 152: component determination unit

154: distance ratio determination unit 156: distance ratio database

(158): distance ratio comparison unit 160: city hall concentration calculation unit

(162): feature point determiner (164): bias calculation unit

166: concentration calculation unit 170: city hall information transmission unit

200: audience rating determiner

Claims (12)

(a) receiving a viewer image which is an image of a viewer watching the interactive TV content; (b) extracting at least one viewer face region from the viewer image and acquiring viewer information including the number of viewers of the interactive TV content using the viewer face region; And and (c) transmitting the viewer information. The method of claim 1, And the viewer information in step (b) further comprises a viewer's concentration of each viewer for the interactive TV content. 3. The method of claim 2, In step (b), (b1) determining a plurality of feature points in the viewer face area; (b2) determining left and right and top and bottom biases of the face region of the viewer from the determined plurality of feature points; And and (b3) calculating the viewing concentration from the left and right and the top and bottom bias. The method of claim 1, Following step (c), and (d) determining an audience rating of the interactive TV content by using the transmitted viewer information. The method of claim 1, And the viewer image in step (a) is an image captured by the camera from the time when the viewer starts watching the interactive TV content to the time when the viewer finishes watching the interactive TV content. The method of claim 1, In the step (b), the viewer information further includes a gender or age group for each viewer, In step (b), (b1) determining a plurality of face components in the viewer face area; (b2) calculating a distance ratio to the distance after calculating a distance between the plurality of face components; And (b3) comparing the distance ratio calculated in step (b2) with the distance ratio between facial components predetermined for each gender or age group to determine the gender or age range of the viewer. How to research viewership of TV content. An image input unit configured to receive a viewer image which is an image of a viewer watching the interactive TV content; A viewer information obtaining unit which extracts at least one viewer face region from the viewer image and obtains viewer information including the number of viewers of the interactive TV content using the viewer face region; And And a viewer information transmitter to transmit the viewer information. The method of claim 7, wherein The viewer information further includes gender, age group, or viewer's view concentration for each of the viewers, for each of the viewers, The viewer information acquisition unit, A face region extraction unit for extracting at least one viewer face region from the viewer image to determine the number of viewers of the interactive TV content, and calculating personal information for calculating gender or age group for each of the viewers using the viewer face region And an audience concentration calculator for calculating a viewer concentration of each viewer with respect to the interactive TV content using the viewer face area. The method of claim 8, The image information calculating unit comprises: a component determining unit which determines a plurality of face components from the viewer face area, a distance ratio calculator which calculates a distance ratio with respect to the distance after calculating a distance between the plurality of face components; A distance ratio database in which distance ratios between facial components according to gender or age range are pre-stored, and a distance ratio comparator for determining the gender or age range of the viewer by comparing the calculated distance ratio with the pre-stored distance ratio A viewer rating survey apparatus for interactive TV content comprising a. The method of claim 8, The viewing concentration calculator is configured to determine a plurality of feature points from the viewer face region, a feature calculation unit for calculating the left and right and vertical skew of the face region from the determined plurality of feature points, and the left and right skewness And an concentration calculation unit for calculating the viewing concentration from the vertical skewing degree. The method of claim 7, wherein And a camera unit for photographing the viewer from the time when the viewer starts watching the interactive TV content to the time when the viewer finishes watching the interactive TV content. An audience rating research apparatus for interactive TV content according to any one of claims 7 to 11; And And an audience rating determiner configured to determine an audience rating of the interactive TV content by using the transmitted viewer information.

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