GB2511129A

GB2511129A - A system for displaying media content

Info

Publication number: GB2511129A
Application number: GB201303374A
Authority: GB
Inventors: Mark Evans
Original assignee: Nomadix Media Ltd
Current assignee: Nomadix Media Ltd
Priority date: 2013-02-26
Filing date: 2013-02-26
Publication date: 2014-08-27
Also published as: GB201303374D0; WO2014132048A1

Abstract

A system for displaying media content comprises a portable wearable display 6 having a support structure 8 to be supported by a person 2, a camera 100 arranged to capture an image and means for processing the image to obtain from the image at least one characteristic associated with a person caught in the image. Media content for the display, e.g. advertising, may be selected based on the characteristic obtained. The processing means is preferably arranged to detect human faces and to determine the gender and/or age of the person, and to select media based upon age or gender. The camera may also be used to count the number of people looking at the display and the length of time they looked at it. GPS may be provided to allow the position of the apparatus to be determined and for additionally selecting media content based upon location. The system may also be used for displaying emergency or public safety messages and images may be transmitted to a third party for use by security services.

Description

A SYSTEM FOR DISPLAYING MEDIA CONTENT

The present invention relates to a system for displaying media content, in particular a system having a portable wearable display apparatus arranged to display media content.

Wearable display systems, for example sandwich boards, have been used for many years for allowing advertisements or messages to be targeted to specific groups of people based on ftlieir location.

Although, over the years, other forms of advertising have increased in popularity, for example the use of the Internet, the use of wearable display systems are still proving popular in locations where large groups of people tend to converge on foot, such as large shopping centres Although the sandwich boards of the 19th century typically consisted of two boards worn by a person, with one board positioned in front of the person wearing the boards and the other board positioned behind the person, the wearable display systems of today typically include a flat screen video display worn above a person's head, where digital images/videos are displayed on the video display to provide a dynamic advertising media to a selection of different audiences.

However, in advertising, irrespective of the delivery medium, there is a primary concern with regard to audience targeting.

Although the Internet allows advertising to be precisely targeted based on a users use of the Internet, this is not possible with wearable display systems, where the principle form of audience targeting is location based.

It is desirable to improve this situation.

In accordance with an aspect of the present invention there is provided a system and device according to the accompanying claims.

The invention as claimed has the advantage of allowing media content displayed on a wearable display apparatus to be interactively selected based the type of audience that is in the vicinity of the wearable display apparatus.

The present invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a front perspective view of a portable wearable display apparatus in use according to a first embodiment of the invention; Figure 2 is a rear perspective view of the portable wearable display apparatus shown in Figure 1; Figure 3 is side view of the portable wearable display apparatus shown in Figures 1 and 2; Figure 4 is front view of the portable wearable display apparatus in a folded configuration; Figure 5 is a side view of the portable wearable display apparatus in the folded configuration shown in Figure 4; Figure 6 is a rear view of the portable wearable display apparatus in the folded configuration shown in Figures 4 and 5; Figure 7 is a close-up perspective view of the portable wearable display apparatus shown in Figures 4 to 6 in the vicinity of the wearer's shoulders, as viewed from the rear; Figures 8, 9 and 10 are detailed close-up views of one of the hinges shown in Figure 7, which illustrate a method of locking the portable wearable display apparatus in an unfolded configuration, ready for use; Figure ha is a detailed close-up view of a pin and a socket of the portable wearable display apparatus prior to engagement; Figure lib is a close-up cross-sectional view of the pin and socket of Figure ha; Figures 12 to 14 are detailed close-up views of the pins and the sockets of the portable wearable display apparatus, which illustrate a method of engagement of the pins and sockets; The following embodiment describes a system where an image taken from a portable wearable display apparatus is used to determine the media content displayed by the portable wearable display apparatus.

For the purposes of the present embodiment, the portable wearable display apparatus's support structure is based upon the support structure described in W02011/051658, where the support structure is optimized for maximum functionality while at the same time being comfortable to wear.

Figures 1 to 3 illustrate an embodiment of the portable S wearable display apparatus 4 in which a person is shown wearing the portable wearable display apparatus 4.

The portable wearable display apparatus 4 comprises an electronic display 6 such as an LCD screen on which, in use, information is displayed above the wearer's head and is visible to the front of the wearer.

Mounted on the display 6 is at least one camera 100 arranged to take still and/or video images of an audience in the vicinity of the portable wearable display apparatus 4.

Although the camera 100 may be positioned in any orientation with respect to the display 6, preferably the camera 100 is positioned to capture an image in front or behind the display 6. In an alternative embodiment, two cameras may be mounted on the display 6 for capturing an image both in front and behind the display 6.

Although in the present embodiment, for improved visibility, the camera 100 is mounted on the display 6, the camera 100 may be located in any location within the vicinity of the portable wearable display apparatus 4, for example the support structure of the portable wearable display apparatus 4.

The display 6 is attached to the top of a frame 8 comprising a pair of tubular uprights 8a, 8b that extend downwardly behind the wearer's head, over the wearer's shoulders then in front of the wearer's chest to a belt 10 around the wearer's waist. A yoke 12 bridging the uprights 8a, Sb sits on the wearer's shoulders and extends behind the wearer's neck. A cross-menther 14 bridges the uprights Ba, Sb in front of the wearer's chest. The uprights Ba, Sb and the cross-member 14 may be of metal (preferably aluminium, possibly steel) or plastics.

At the level of the wearer's head, the uprights 8a, Sb of the frame B are parallel. Above the wearer's head, the uprights Ba, Sb converge to an apex at an apex portion 15, and generally form an A-shape. The apex portion 15 of the frame 8 is webbed to increase its rigidity. At the apex portion 15, bolts 14a, 14b extend through a mounting plate 16 to secure the display 6 to the frame 8. The display 6 is tilted slightly downwardly for optimum visibility by viewers standing in front of the wearer 2: the degree of tilt may be adjustable, although this facility is not present in the embodiment shown.

Where the uprights Ba, Sb of the frame B converge at the apex portion 15, they are tilted slightly forwardly. Thus, the apex portion 15 and hence the display 6 are above the wearer's head in the side view shown in Figure 3. This aligns the weight of the display 6 with the wearer's body to maximise the wearer's comfort in use of the system 4.

In side view, the uprights Ba, 8b of the frame curve downwardly and rearwardly from the.apex portion 15 to behind the wearer's head, before curving forwardly as they approach the wearer's shoulders. Where the uprights Ba, Sb lie generally parallel behind the wearer's head, they define a gap 18 slightly wider than the wearer's head. This is so that if the wearer looks upwards, for example to check the display 6, their head will not collide with the uprights Ba, Sb. The gap 18 also allows the wearer 2 to don the frame 8 when it is in a folded configuration, described in detail below.

The uprights 8a, Sb each have a kink iSa, 18b to extend forwards over the wearer's respective shoulders, each kink iSa, iSb imparting an S-shape to each upright Ba, Sb in side view as best shown in Figure 3. At each kink iSa, 18b, the forwardly-extending portion of each upright Ba, Sb sits on, and is rigidly attached to, a respective shoulder portion 12a, 12b of the yoke 12.

The yoke 12 is shaped to sit on the wearer's shoulders to bear part of the weight of the system 4 when worn and to provide stability to the frame S. The yoke 12 is U-shaped in plan view. The arms of the U rest on respective shoulders of the wearer to define the respective shoulder portions 12a, 12b. The base of the U extends behind the lower part of the wearer's neck at the cervical/thoracic junction (the 07/Ti region) to define a collar element 12c that joins the shoulder portions 12a, 12b. To avoid applying pressure to the wearer's throat, the yoke 12 does not extend around the front of the wearer's neck: it leaves a gap at the front.

The shoulder portions 12a, 12b of the yoke 12 are curved in side view and front view to conform to the curvature of the wearer's shoulders. The shoulder portions 12a, l2b and the collar element 12c curve upwards and inwards along the inside edge portion of the U to define a neck flange 13 that follows the contours of the junction between the wearer's neck and shoulders to provide further stability and comfort.

Further to increase comfort, the yoke 12 is padded (not shown) where it rests on and against the wearer's shoulders and neck.

Each shoulder portion 12a, 12b comprises a raised plinth 20a, 20b, shown most clearly in Figures 7 to 10, which defines a upwardly-facing channel 22a, 22b to receive the forwardly-extending portion of a respective upright Ba, 8b.

These channels 22a, 22b each have a concave cross-section that complements the convex curvature of the opposed part of each upright Sa, Sb to resist lateral movement of the uprights Ba, Sb off the yoke 12.

Curving downwardly again in front of the yoke 12, the uprights Ba, Sb then continue downwardly in parallel in front of, but clear of, the wearer's chest. Here they are bridged by the cross-member 14 mentioned above: that cross-member 14 is generally oblong and may carry a speaker and/or information such as a marketing message.

Below the cross-member 14, the uprights 8a, Sb splay away from each other outwardly and curve rearwardly around and with respect to the kidney region of the wearer's torso.

Each upright Ba, 8b terminates in a respective pin 22a, 22b, shown most clearly in Figures ha to 14, that is received in a respective complementary socket 24a, 24b mounted on the belt 10. The sockets 24a, 24b are situated on the belt 10 with one to each side of the wearer's body to bring the weight of the system 4 closer to the centre of the wearer's body when viewed from the side.

Advantageously, the pins 22a, 22b are indexible between successive insertion positions in the sockets 24a, 24b, whereby the system 4 may be adjusted to suit wearers with different lengths of torso. A mechanism for doing so will be described later with reference to Figures ha to 14.

The belt 10 is suitably made of canvas or leather. Batteries and other equipment such as an inverter, amplifier and speakers are housed in cases 26 mounted on the belt 10.

Preferably, other equipment relating to the provision of media content on the display 6 is also housed in the cases 26 mounted on the belt 10, as described below, for example a transmitter, a receiver and a processor.

In addition, the belt 10 may support speakers to play an audio track, in which case the speakers are preferably mounted on the front of the belt 10 for optimum Sound transmission to viewers of the display 6. In an alternative embodiment of the invention, the speakers may be integrated into the display 6 or the frame B, for example on the cross- member 14 as mentioned above, or possibly between the cross-member 14 and the wearer's shoulders.

Preferably attached or coupled to the portable wearable display apparatus 4 is a global positioning sensor for allowing the location of the portable wearable display apparatus 4 to be determined using a global positioning system.

Power and communication cables (not shown) connect the display 6 to the equipment mounted on the belt 6. To prevent snagging, the cables extend from the display 6 inside the frame 8 and exit the frame just above one or both of the pins 22a, 22b. The cables have connectors at their lower ends which connect to the equipment of the belt 10.

The frame B of the portable wearable display apparatus 4 of the present invention may be folded for compactness, as shown in Figures 4 to 7, such that the display 6 is folded towards the belt 10 and lies below the cross-member 14 when folded. This is particularly useful when the wearer 2 dons or removes the apparatus 4, or when storing or transporting the apparatus 4. It may also be useful when the wearer 2 is moving about before or after use of the apparatus 4, particularly through doorways or other locations where headroom may be limited.

For the purpose of folding, each upright 8a, Sb has an upper portion 28a, 28b and a lower portion 30a, 30b joined by a hinge 32a, 32b at shoulder level, situated on the forwardly-extending portion at each kink iSa, 18b. The upper portions 28a, 28b are therefore generally L-shaped in side view and extend from the apex 15 of the frame 8 to the hinges 32a, 32b. The lower portions 30a, 3Gb are also generally L-shaped in side view, but inverted, and extend from the hinges 32a, 32b to the belt 10.

Referring particularly now to Figures 8 to 10, a latch fastener 34 is attached to the rear of the left plinth 2Gb provided on the left shoulder portion 12b of the yoke 12.

The fastener 34 has a hook 36 that engages with a corresponding loop 38 located on the corresponding left upper portion 2gb. Figure 8 shows the fastener 34 and hook 36 on the left plinth 20b and left upper portion 28b of the display system 4, with the upper portion 28b and the lower portion 3Gb in the folded configuration. A corresponding fastener and loop (not shown) are arranged in the same way on the right plinth 28a and right upper portion 28a respectively.

To unfold the upper portions 28a, 28b and the lower portions 30a, 30b, the upper portions 28a, 28b are raised above the wearer's head until the lower parts of the upper portions 28a, 28b rest in the channels 22a, 22b with the ends of the upper portions 28a, 28b and the ends of the lower portions 30a, 30b bearing against each other, as shown in Figure 9.

The fastener 34 has a lever 40 arranged such that raising the lever 40 raises the hook 36 over the ioop 38 enabling the hook 36 to engage with and tension the ioop 38 when the lever 40 is lowered in an over-centre action, as shown in Figure 10. Again, the corresponding fastener on the right plinth 28a comprises a further lever (not shown). The levers are held in the lowered position by the over-centre action such that the upper portions 28a, 28b and the lower portions 30a, 30b are securely maintained in the unfolded configuration. To fold the frame portions 28a, 28b, 30a, 30b again, the levers are raised to release the hooks from the loops and the upper portions 28a, 28b are folded forwardly and downwardly against the lower portions 30a, 30b.

Moving now to Figures ha to 14, these drawings illustrate a mechanism for adjusting the system to suit wearers with different lengths of torso. In that mechanism, the pins 22a, 22b at the lower ends of the uprights 8a, 8b are elongate and have a circular cross-section. Each pin 22a, 22b tapers at its end and has a rounded head 42a, 42b. Each pin 22a, 22b has a series of equally-spaced grooves 44 machined around its circumference. The diameter of a pin 22a, 22b between the grooves 44 is therefore greater than the diameter within the grooves 44.

When preparing to use the portable wearable display apparatus 4 of the present invention, the wearer 2 first secures the belt 10 around their waist. The sockets 24a, 24b are mounted on the belt 10 and, if necessary, may be moved around the belt 10 so that they are correctly aligned to receive the pins 22a, 22b of the uprights 8a, Sb. Each -10 -socket 24a, 24b comprises a U-section socket channel 46 (which is shown in Figure lib in respect of the right socket 24a only) that extends vertically, the channel section being part-circular and defining a gap 47 that is slightly narrower than the diameter of that circle.

As shown in Figure lib, an inwardly-extending flange 48 extends around the interior of each socket channel 46 and lies in a plane orthogonal to the longitudinal axis of that channel 4. Each flange 48 has parallel sides joined by a part-circular wall such that in plan view, each flange 48 tapers at each side as it approaches the gap 47 in the part-circular channel section. Each flange 48 has a thickness selected to fit within a groove 44 of the respective pins 22a, 22b.

The gap 47 in the part-circular section of each socket channel 4 is slightly narrower than the diameter of the respective pins 22a, 22b of the uprights Ba, 8b. Thus, when the pins 22a, 22b are inserted rearwardly into each socket channel 46, the respective socket 24a, 24b flexes resiliently to embrace each pin 22a, 22b in a snap-fit manner. It is only possible for the pins 22a, 22b to enter each socket channel 46 in this way when a selected groove 44 of each pin 22a, 22b is aligned with each flange 48 of each socket channel 46. Engagement between the flanges 48, a selected groove 44 locates the pins 22a, 22b vertically with respect to the sockets 24a, 24b.

Each groove 44 thereby defines a respective vertical position for the uprights Ba, 8b with respect to the sockets 24a, 24b of the belt 10 and hence adapts the frame 8 of the display system 4 to a particular torso length. Also, by virtue of the flange-to-groove engagement and the resilient -11 -snap-fit between the pins 22a, 22b and each socket channel 46, the uprights 8a, Sb are held securely in the chosen position with respect to the sockets 24a, 24b.

Security is enhanced by flaps 50a, 50b which close the gap 47 in each socket channel 46 to enclose the pins 22a, 22b retained within. Each flap SOa, 50b is hinged at one end to the socket 24a, 24b on one side of each gap 47 and is secured at its free end to the socket 24a, 24b on the other side of each gap 47 to close each socket channel 46 securely.

As mentioned above, to make donning the system 4 easier, the frame 8 is initially in the folded configuration and the flaps 50a, SOb of the sockets 24a, 24b are open. The cross-member 14, the lower portions 30a, 30b of the uprights 8a, 8b and the yoke 12 together define a opening which is aligned with a corresponding opening between the upper portions 28a, 28b of the uprights Ba, Sb when the frame 8 is in the folded configuration. To don the frame 4, the frame 4 is lifted above the wearer's head and lowered so that the wearer's head passes through the aligned openings as the yoke 12 approaches and then rests on the wearer's shoulders.

With the yoke 12 taking the weight of the system 4 initially on the wearer's shoulders, the wearer 2 or an assistant slots the pins 22a, 22b into the sockets 24a, 24b, as illustrated in Figures ha and llb, so that the flange 48 of each socket 24a, 24b engages with one of the grooves 44 of the pins 22a 22b, as illustrated in Figure 12. If necessary, the pins 22a, 22b may be removed from the channels 46 and reinserted so that another groove 44 of each pin 22a, 22b, as illustrated in Figure 13, engages with each flange 48 for a better fit for the wearer 2. A good fit is achieved when the yoke 12 rests comfortably on the wearer's shoulders and -12 -there is a good balance of weight borne by the yoke 12 and the belt 10. The flaps 50a, SOb are then closed to secure the pins 22a, 22b in the sockets 24a, 24b.

The wearer 2 then unfolds the uprights 8a, Sb about the shoulder-level hinges 32a, 32b and secures them in the unfolded position using the fasteners 34. The power and communication cables are then attached to the appropriate equipment on the belt 10 and the system 4 can be initialised and used.

In a first embodiment, the portable wearable display apparatus 4 includes a transmitter for transmitting images taken by the camera 100 to a remote server for analysing the transmitted images with facial recognition software.

Preferably, the images are transmitted to the remote server using a secure wireless protocol. Preferably, the location of the portable wearable display apparatus 4 is also transmitted to the remote server.

The remote server includes a subsystem for processing the received images into a series of high-level descriptors relating to any audience contained within the images taken by the camera 100. The subsystem determines the high-level descriptors by detecting and analysing people within the received images and once a human face has been detected also tracking any detected faces within multiple image frames, where the subsystem is able to determine the number of human faces within a received image.

The determination of the high-level descriptors is performed in the subsystem using a first module that is arranged to detect the presence of people in a received image. Once the first module has detected the presence of a person, a second -13 -module is arranged to track further corresponding detections in subsequent images to allow a detected person to be tracked through multiple images. A third module is arranged to detect specific characteristics associated with a person detected in an image, where the specific characteristics have corresponding high-level descriptors. A fourth module determines from analyses of the image the direction of a detected person's gaze and whether the detected person is looking at the display 6.

Examples of high-level descriptors include the number of people within an image, the number of people actually viewing the display 6, the length of time and frequency a person in the audience views the display, audience gender breakdown, audience age breakdown, the position and distance of the audience, the height of a person, body size, type of clothes.

Once the subsystem has determined the high-level descriptors associated with an image or series of images, as in a video, the subsystem feeds the high-level descriptors as queries into a database of pre-tagged video material suitable for displaying on the display 6 of the portable wearable display apparatus 4.

The tags associated with the video material describe the suitability of the associated video material with respect to any given high-level descriptors (i.e. the characteristics associated with people captured within the images taken by the camera 100).

Based upon predetermined criteria associated with the high-level descriptors the subsystem selects suitable video material from the database for displaying on the display 6.

-14 -Optionally, the high-level descriptors may include location information based on information provided by the global positioning sensor associated with the portable wearable display apparatus 4.

For example, if a large number of family groups are detected from images received from the portable wearable display apparatus in the vicinity of a restaurant around lunch time, video content relating to that restaurant may be selected for display on the portable wearable display apparatus's display 6.

The remote server is also able to collate the determined high-level descriptors to allow reports on how the high-level descriptors change over time and/or location.

Once the subsystem has selected the most appropriate video content using the high-level descriptors, the selected video content is transmitted from the remote server to the portable wearable display apparatus 4 for displaying on the display 6.

In a further preferred feature, the images transmitted from the portable wearable display apparatus 4 are also transmitted to a designated organization, for example the security services, for allowing the location of the portable wearable display apparatus 4 to be monitored. Preferably the designated organization will analyze the received images using face recognition software to monitor for specific people, for example missing people, in the vicinity of the portable wearable display apparatus 4.

-15 - Preferably, the designated organisation, or another pre-selected organisation, for example the emergency services, is able to override the video content transmitted from the remote server to the portable wearable display apparatus 4 with emergency or public safety messages, thereby allowing the portable wearable display apparatus to be used to present emergency or public safety messages as required.

In a second embodiment, the media content system of the previous embodiment is the same other than a processor is included with the portable wearable display apparatus 4, or carried by the wearer of the portable wearable display apparatus 4, that performs the analysis of the images taken by the camera 100 to generate the high-level descriptors.

The determined high-level descriptors are transmitted, over preferably a secure wireless communication link, to the remote server. As with the previous embodiment, the remote server's subsystem uses the high-level descriptors to identify suitable media content to be displayed on the portable wearable display apparatus's display 6. Upon identifying suitable media content to be displayed, the remote server communicates the media content, over preferably a secure wireless communication link, to a receiver on the portable wearable display apparatus 4. As with the previous embodiment, the media content received by the portable wearable display apparatus 4 is arranged to be displayed on the display 6.

In a third embodiment, the features of the remote server in the first embodiment are incorporated into the portable wearable display apparatus 4, or carried by a wearer of the portable wearable display apparatus 4. That is to say, the portable wearable display apparatus 4 includes means to both analyse images captured by the camera 100 for determining -16 -high-level descriptors and to use the determined high-level descriptors to identify suitable media content to display on the display 6. The portable wearable display apparatus 4 includes one or more signal sources for the display -such as a DVD player, personal computer or mp3 player -that stores media content for displaying on the display. A variety of media content is stored on the one or more signal sources from which the media is selected following the determination of high-level descriptors.

It will be apparent to those skilled in the art that the disclosed subject matter may be modified in numerous ways and may assume embodiments other than the preferred forms specifically set out as described above, for example in addition to media content being displayed on the display 6 the media content can also include, or alternatively include, audio content to be played through the portable wearable display apparatus's audio system.

-17 -

Claims

CLAIMS1. A system for displaying media content, the system comprising a portable wearable display apparatus having a support structure for allowing a display to be supported by a person wearing the support structure; a camera arranged to capture an image; and means for processing the image, wherein for an image in which at least one person has been caught in the image the means for processing is arranged to obtain from the image at least one characteristic associated.with the at least one person.
2. A system according to claim 1, wherein the camera is arranged to capture an image in front or behind the display.
3. A system according to claim 1 or 2, further comprising means for providing media content to the display for displaying on the display, wherein the means for providing media content is arranged to determine the media content based upon the at least one characteristic associated with the at least one person.
4. A system according to any one of the preceding claims, wherein the portable wearable display apparatus further comprises a transmitter for transmitting the image captured by the camera to the means for processing.
5. A system according to claim 3, wherein the portable wearable display apparatus further comprises a receiver for receiving the media content for displayed on the display.
6. A system according to any one of the preceding claims, wherein the means for processing the image is arranged to detect the presence of human faces.

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7. A system according to claim 6, wherein the means for processing the image is arranged to track detected faces within a plurality of images captured by the camera.
8. A system according to claims 6 or 7, wherein the means for processing the image is arranged to classify the detected faces.
9. A system according to claim 8, wherein the detected faces are classified by gender and/or age.
10. A system according to claim 8, wherein the means for providing media content is arranged to determine the media content based upon the gender and/or age of the at least one person as determined by the means for processing.
11. A system according to any one of the preceding claims, wherein the means for processing the image is arranged to count the number of people that look at the display.
12. A system according to any one of the preceding claims, wherein the means for processing the image is arranged to determine the length of time that the at least one person looked at the display by analysing a plurality of images captured by the camera.
13. A system according to any one of the preceding claims, wherein the portable wearable display apparatus further comprises a global positioning sensor for allowing the location of the portable wearable display apparatus to be determined.

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14. A system according to claim 13, wherein the means for providing media content is arranged to determine the media content based upon the location of the portable wearable display apparatus as determined by the global positioning sensor.
15. A system according to any one of the preceding claims, wherein the portable wearable display apparatus further comprises an audio device for playing audio media content.
16. A system according to any one of the preceding claims, wherein the camera is mounted on the display or support structure.
17. A system according to claim 16, wherein the camera is mounted adjacent to the display.
18. A system according to any one of the preceding claims, wherein the image is a video feed.
19. A system according to any one of the preceding claims, further comprising means for providing emergency or public safety messages to the display for displaying on the display.
20. A system according to claim 4, wherein the transmitter is arranged to transmit the image to a third party to be used by security services.
21. A system according to claim 4, wherein the transmitter is arranged to transmit the image using a secure wireless communication protocol.

-20 -
22. A portable wearable display apparatus having a support structure for allowing a display to be supported by a person wearing the support structure; a camera arranged to capture an image; and means for processing the image, wherein for an image in which at least one person has been caught in the image the means for processing is arranged to obtain from the image at least one characteristic associated with the at least one person.
23. A portable wearable display apparatus according to claim 23, wherein the camera is arranged to capture an image in front or behind the display.
24. A portable wearable display apparatus according to claim 22, further comprising means for providing media content to the display for displaying on the display, wherein the means for providing media content is arranged to determine the media content based upon the at least one characteristic associated with the at least one person.
25. A portable wearable display apparatus according to claim 22, further comprising a transmitter for communicating the at least one characteristic to a remote device.
26. A portable wearable display apparatus according to claim 22, further comprising a receiver for receiving media content from a remote device to be displayed on the display, wherein the media content is based upon the at least one characteristic associated with the at least one person
27. A portable wearable display apparatus according to any one of claims 22 to 26, further comprises a global positioning sensor for allowing the location of the portable wearable display apparatus to be determined.-21 -
28. A portable wearable display apparatus according to any one of claims 22 to 27, further comprises an audio device for playing audio media content.
29. A portable wearable display apparatus according to claims 28, wherein the camera is mounted on the display or support structure.
30. A portable wearable display apparatus according to claims 29, wherein the camera is mounted adjacent to the display.
31. A portable wearable display apparatus according to any one of claims 22 to 30, wherein the means for processing the image is arranged to detect the presence of human faces.
32. A portable wearable display apparatus according to claim 31, wherein the means for processing the image is arranged to track detected faces within a plurality of images captured by the camera.
33. A portable wearable display apparatus according to claims 31 or 32, wherein the means for processing the image is arranged to classify the detected faces.
34. A portable wearable display apparatus according to claim 33, wherein the detected faces are classified by gender and/or age.
35. A portable wearable display apparatus according to any one of claims 22 to 34, wherein the means for processing the image is arranged to count the number of people that look at the display.-22 -
36. A portable wearable display apparatus according to any one of claims 22 to 34, wherein the means for processing the image is arranged to determine the length of time that the at least one person looked at the display by analysing a plurality of images captured by the camera.-23 -