JP2005141151A - Projector and method for setting projector function - Google Patents

Projector and method for setting projector function Download PDF

Info

Publication number
JP2005141151A
JP2005141151A JP2003379910A JP2003379910A JP2005141151A JP 2005141151 A JP2005141151 A JP 2005141151A JP 2003379910 A JP2003379910 A JP 2003379910A JP 2003379910 A JP2003379910 A JP 2003379910A JP 2005141151 A JP2005141151 A JP 2005141151A
Authority
JP
Japan
Prior art keywords
function setting
operation
user
projector
projection screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP2003379910A
Other languages
Japanese (ja)
Inventor
Hiroshi Hasegawa
Norihiko Yamada
紀彦 山田
浩 長谷川
Original Assignee
Seiko Epson Corp
セイコーエプソン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, セイコーエプソン株式会社 filed Critical Seiko Epson Corp
Priority to JP2003379910A priority Critical patent/JP2005141151A/en
Publication of JP2005141151A publication Critical patent/JP2005141151A/en
Application status is Withdrawn legal-status Critical

Links

Abstract

<P>PROBLEM TO BE SOLVED: To constitute a projector in such a manner that the various functions thereof can be set by remote control without using a remote controller, pointing device, etc. <P>SOLUTION: The projector has: a photographing means 11 which can photograph a projection screen; an image recognizing means 12 which can recognize an image photographed by the photographing means 11; and a projection image generating means 27 which can generate function setting information for the purpose of setting the various functions of the projector. The user's function setting operation carried out on the projected image screen is judged by projecting the function setting information on the projection screen and subjecting the photographed image obtained by photographing the projected function setting information to image recognition. The function setting is performed on the basis of the result of the judgment. The function setting operation to be carried out by the user is the operation, for example, to put a hand over a prescribed region. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a projector capable of performing various function settings of a projector on a projection screen and a projector function setting method.

  Conventionally, various function settings such as image quality adjustment and distortion adjustment of a projector are performed by operating a function setting operation button or a function setting operation knob provided on the projector body, or as an accessory to the projector. Generally, it is performed using a prepared remote controller (hereinafter referred to as a remote controller).

However, in order to perform various function settings using a switch or an adjustment knob provided on the projector main body, the user needs to be in a position where the user can directly operate the projector. For example, when a presenter near the screen projected by a projector adjusts the image quality in a presentation, etc., it is necessary to go to the location where the projector is installed and adjust the projector each time. Is very inconvenient.
In many cases, the projector is installed in a state of being hung from the ceiling of the venue, but in this case, it is troublesome to make adjustment again when there is a problem in the initial adjustment.

  In order to solve this problem, as described above, those that enable an adjustment operation using a remote control have become widespread. The remote controller is provided with various function setting operation buttons, and corresponding operation settings can be performed by selecting and operating the operation buttons. By using such a remote controller, it is possible to set functions remotely, which is convenient.

  However, in order to set functions with this remote control, the user must always have the remote control and the user often forgets to place the remote control away from him. , There is a hassle that you have to get the remote control. In addition, since the remote control is generally small and light, there is a problem that it is difficult to find, for example, when it is misplaced, and it is easily lost.

  Further, as an example of a conventional technique that enables function setting of a device such as a projector by remote operation, for example, a “projection display device” described in Japanese Patent Application Laid-Open No. 2000-112021 (hereinafter referred to as the technique of Patent Document 1). ), “Information processing apparatus” (hereinafter referred to as technology of Patent Document 2) described in JP-A-2002-229735, and the like.

  As described in the embodiment, the technique of Patent Document 1 uses an arrow-shaped marker projected on a screen by a laser pointer as a screen sensor (area imaging sensor and imaging lens) provided on the projector side. And the position of the marker on the projection screen is specified by the control means. Using this function, various function settings of the projector can be remotely controlled.

  In the technique of Patent Document 2, as in the technique described in Patent Document 1, the user controls the information processing apparatus using a pointing device such as a laser pointer. Specifically, an electronic camera is connected to an information processing apparatus (personal computer) to which an enlarged display device such as a projector is connected, and the projection screen of the projector is imaged by the electronic camera, and an instruction image by a pointing device is taken from the captured image. (A marker or the like) is recognized by the information processing apparatus, and the information processing apparatus is controlled based on the recognition result.

  As described above, the technique disclosed in Patent Document 2 controls a PC based on an image captured by an electronic camera provided in a personal computer (PC). Therefore, the technique of Patent Document 2 does not directly control the projector itself.

  On the other hand, as an example of a technique that enables remote control of function settings of various apparatuses without using the above-described remote controller or pointing device, Japanese Patent Application Laid-Open No. 2001-5975, “Device Control Apparatus and Method” (hereinafter referred to as Patent Document 3). Technology).

In the technique of Patent Document 3, for example, a user performs a gesture for causing a user to perform some kind of operation such as setting up one finger or two fingers on a projection screen, and shooting the image with a camera. Recognition processing (motion detection and recognition). And it is going to control an apparatus (a projector etc.) using the recognition result.
Certainly, with the technique of Patent Document 3, it is considered that the remote operation of the apparatus can be performed without using the pointing device or the remote controller as described above.
JP 2000-112021 A JP 2002-229735 A JP 2001-5975 A

  However, the technique of Patent Document 1 described above requires a pointing device such as a laser pointer as a means for remote control. Obviously, this causes the same problem as the above-described remote controller.

  In addition, as described above, the technique of Patent Document 2 controls the PC based on an image captured by an electronic camera provided in the PC. Therefore, the technique of Patent Document 2 does not directly control the projector itself. Further, since a pointing device such as a laser pointer is required, the same problem as the above-described remote controller occurs.

  In addition, since the technique of Patent Document 3 does not display a guide for executing an operation, the user can change the method of moving a hand or the way of putting out a finger to give an operation instruction to each operation instruction. You have to remember the correspondence. Further, in Patent Document 3, since a plurality of cameras are required to obtain distance information to the hand image, there is a problem that the cost increases. Further, the technique of Patent Document 3 has a problem that the image recognition process for recognizing the movement of the hand, how to put out the finger, etc. is complicated and requires a lot of calculation resources for the recognition process.

  It is an object of the present invention to provide a projector and a projector function setting method that can be remotely operated by a user instructing various function settings such as image quality adjustment and distortion adjustment on a projection screen according to a guide.

  (1) A projector according to the present invention is a projector that generates a projection image and projects the projection image on a projection screen. The imaging unit captures the projection screen and outputs the captured image, and the imaging unit outputs the projection image. Image recognition means for recognizing a captured image, and projection image generation means capable of generating function setting information for setting a function of the captured image as one of the projection images, and the function is provided on the projection screen. By projecting the setting information and recognizing the captured image obtained by imaging the projected function setting information, the function setting operation of the user performed on the projection screen is determined, and the result of the determination Based on this, the function is set.

  As described above, the projector according to the present invention performs various function settings such as the brightness setting based on the recognition result of the user's function setting operation performed on the projection screen. As a result, a user located near the projection screen projected by the projector, such as a presenter in a presentation, does not directly touch the projector installed away from the projector, and an auxiliary device such as a remote control or a laser pointer. Various function settings of the projector can be performed without using a pointing device such as the above.

  (2) In the projector according to (1), as a step before setting the function, function setting mode transition guide information is projected onto the projection screen, and the predetermined function setting mode transition guide information is included. By recognizing the captured image obtained by imaging the range, the user's function setting mode transition operation performed on the projection screen is determined, and the function setting mode is shifted based on the determination result. ing.

  As described above, the various function settings of the projector are performed after the operation mode of the projector is shifted to the function setting mode. When the transition to the function setting mode is performed, the function setting mode of the user performed on the projection screen is also performed. Since the transition operation is recognized based on the recognition result, the pointing device such as a remote controller or a pointing device such as a laser pointer can be used without directly touching a projector installed away from the user. Without using the projector, the operation mode of the projector can be easily shifted to the function setting mode.

  (3) In the projector according to (2), when the user's function setting mode transition operation is recognized as an image, when the user's function setting mode transition operation is determined during the normal projection operation of the user, The predetermined area set outside the projection screen is used as a recognition area when the image recognition is performed, and the imaging unit images the projection screen and the predetermined area.

  As a result, when shifting to the function setting mode during a normal projection operation in which an image is projected, the function setting mode transition operation performed by the user is performed at that time as a projected image (particularly, there is a movement like a moving image). The image recognition clearly distinguished from the image) can be performed, and even when the projector is performing a normal projection operation, the transition to the function setting mode can be performed accurately.

(4) In the projector described in (2) or (3), the function setting mode transition guide information is information indicating an operation example to be performed by the user in order to shift to the function setting mode.
As a result, the user can know at a glance what kind of operation can be performed to shift to the function setting mode by viewing the displayed guide information, and can easily shift to the function setting mode. .

  (5) In the projector according to any one of (1) to (4), the image recognition processing performed by the image recognition unit determines a change in a captured image between frames obtained in time series from the imaging unit, and The function setting operation or the function setting mode transition operation is determined based on the determination result.

  This is to perform a difference calculation between several consecutive frames and recognize a function setting operation or a function setting mode transition operation performed by the user from the difference calculation result, and it is necessary to perform a highly accurate image recognition process. Therefore, the amount of calculation required for image recognition can be reduced, and the memory and CPU can be kept inexpensive.

(6) In the projector according to (5), when determining the user's function setting operation or the function setting mode transition operation, the user's function setting operation or the function setting mode transition operation continues for a predetermined time or more. The function setting operation of the user or the operation for shifting to the function setting mode is determined to be valid if the operation is continued for a predetermined time or longer.
As a result, it is possible to properly detect only the operation performed by the user to set the function.

  (7) In the projector according to (6), when it is determined that the user's function setting operation or the function setting mode transition operation is valid, the user's function setting operation or the function setting mode transition operation is valid. It is preferable to display that there is.

  This is to present operational feelings to the user, such as making a beep sound or clicking sound, and highlighting or blinking the display part corresponding to the function setting operation or function setting mode transition operation performed by the user. As a result, the user can realize the function setting operation performed by the user and can know that the function setting operation has been properly recognized.

(8) In the projector according to (1) to (7), the user's function setting operation is an operation in which the user holds his / her hand over a predetermined area of the projection screen.
This allows the user to simply hold his / her hand over a predetermined area on the projection screen, so there is no need to learn complicated gestures depending on the type of function setting, and the function setting operation is extremely Simple. In addition, the image recognition for determining whether or not the function setting operation has been performed by the user only needs to be able to recognize that the user has held his / her hand over a predetermined area, and therefore the image recognition process may be simplified. it can.

  (9) In the projector according to (2) to (7), the user's function setting mode transition operation is performed by the user holding a hand over a predetermined area set in the projection screen or outside the projection screen. It is an operation.

  As a result, the user only needs to hold his / her hand over a predetermined area set in or outside the projection screen, so there is no need to memorize complicated gestures, etc. The migration operation is very simple. Further, the image recognition for determining whether or not the function setting mode transition operation has been performed by the user only needs to be able to determine whether or not the user has held his / her hand over a predetermined area, so that the image recognition process is simplified. can do. In this case, as an operation of holding the hand, an operation such as shaking the hand up and down may be performed as well as holding the hand.

(10) In the projector according to any one of (1) to (9), the function setting information includes function setting menu selection information capable of selecting a function setting menu prepared corresponding to various functions, and each of these functions. When the user selects certain function setting menu selection information on the projection screen, the function setting menu is displayed. The function setting content corresponding to the selection information is displayed on the projection screen.
In this way, by layering the function setting information, it is possible to perform the function setting step by step in order, and the desired function setting can be easily performed.

  (11) In the projector according to (10), when the function setting content corresponding to the certain function setting menu selection information is displayed on the projection screen, the function setting content corresponding to the function setting menu selection information is displayed. The display position on the projection screen is set to a position different from the display position of the function setting menu selection information.

  In this way, by changing the projection position of the function setting content corresponding to the function setting selection menu on the projection screen to a position different from the display position of the function setting selection menu, the image recognition area of both is changed. When the user selects the function setting selection menu by holding his / her hand, the user can continuously perform image recognition without having to retract his / her hand out of the projection screen each time. As a result, the user can continue to hold the hand held on the projection screen, which is easy to use.

(12) In the projector described in (10) or (11), the function setting menu selection information and the function setting contents corresponding to the function setting menu selection information are displayed as icons.
In this way, displaying the function setting selection menu and its function setting contents as icons makes it easy to understand the function setting menu selection and its function setting operation, and makes it easy to select the function setting menu and its function setting operation. it can.

  (13) A projector function setting method according to the present invention is a projector function setting method for setting a projector function, and projecting function setting information for performing the function setting on the projection screen; Capturing the function setting information projected on the projection screen with an imaging unit; recognizing the captured image to determine a user's function setting operation performed on the projection screen; and And a step of performing the function setting based on a result of the determination.

  As a result, the same effect as the above (1) can be obtained. Also in this projector function setting method, as (14), in the projector function setting method described in (13), the operation mode of the projector can be shifted to the function setting mode as a stage before performing the function setting. Projecting function setting mode transition guide information to be projected onto the projection screen, and recognizing a captured image obtained by capturing a predetermined range including the projected function setting mode transition guide information on the projection screen. It is possible to determine the user's performed function setting mode transition operation and perform the function setting mode transition based on the determination result.

  Further, as (15), in the projector function setting method according to (14), when the user recognizes the function setting mode transition operation, the user's function setting mode transition is performed during the normal projection operation. When the operation is determined, a predetermined area set outside the projection screen can be set as a recognition area when the image recognition is performed.

  In addition, as (16), in the projector function setting method according to (14) or (15), the function setting mode transition guide information includes an example of an operation to be performed by the user in order to shift to the function setting mode. The function setting mode transition guide information shown can be displayed.

  Further, as (17), in the projector function setting method according to any one of (13) to (16), the image recognition processing performed by the image recognition unit is an imaging between frames obtained in time series from the imaging unit. It can be set as the process which determines the change of an image and determines the said user's function setting operation or the said function setting mode transfer operation based on the determination result.

  Further, as (18), in the projector function setting method according to (17), when the user's function setting operation or the function setting mode transition operation is determined, the user's function setting operation or the function setting mode is determined. It is determined whether or not the transition operation has been performed for a certain period of time. If the transition operation has been performed for a certain period of time, it is possible to determine that the user's function setting operation or the function setting mode transition operation is valid.

  Further, as (19), in the projector function setting method according to (18), when it is determined that the user's function setting operation or the function setting mode transition operation is valid, the user's function setting operation or the It is preferable to display that the function setting mode transition operation is valid.

  Further, as (20), in the projector function setting method according to (13) to (19), the function setting operation of the user is an operation in which the user holds a hand over a predetermined area of the projection screen. Can do.

  Further, as (21), in the projector function setting method according to (14) to (19), the user's function setting mode transition operation is set by the user within the projection screen or outside the projection screen. The operation can be performed by placing a hand over the predetermined area.

  Further, as (22), in the projector function setting method according to any one of (13) to (21), the function setting information is a function capable of selecting a function setting menu prepared corresponding to various functions. It has setting menu selection information and function setting contents indicating what kind of function setting is performed for each function setting menu selection information, and the user selects certain function setting menu selection information on the projection screen. Then, the function setting content corresponding to the function setting menu selection information can be displayed on the projection screen.

  Further, as (23), in the function setting method of the projector according to (22), when the function setting content corresponding to the certain function setting menu selection information is displayed on the projection screen, the function setting menu selection information is displayed. The display position of the corresponding function setting content on the projection screen can be different from the display position of the function setting menu selection information.

  Further, as (24), in the projector function setting method described in (22) or (23), the function setting menu selection information and the function setting contents corresponding to the function setting menu selection information may be displayed as icons. it can.

  Embodiments of the present invention will be described below. The contents described in this embodiment include descriptions of both the projector and the projector function setting method of the present invention. In this embodiment, a liquid crystal projector (simply called a projector) is used as the projector.

  FIG. 1 is a block diagram for explaining the configuration of a projector 1 according to the present invention. In FIG. 1, imaging means 11 (having an imaging lens 11a, an imaging element, and a peripheral circuit 11b), which are components shown in gray. The image recognition means 2 is a component newly provided in configuring the present invention, and the other components are components of a projector that has been generally used conventionally.

  First, the newly added components will be described. As described above, the image pickup means 11 includes the image pickup lens 11a, the image pickup device, and the peripheral circuit 11b. The image pickup device and the peripheral circuit 11b are not shown here, but an image pickup device such as a CCD, an A / D converter, a frame buffer, and the like. It consists of various components necessary as means. The imaging unit 11 operates under the control of the system control unit 13 and continuously captures a predetermined range including the projection screen at a predetermined frame rate and continuously generates imaging data. The imaging data is digitized and then stored in a frame buffer (not shown) that can store imaging data for a plurality of frames.

  The image pickup means 11 is provided in the projector 1 so as to pick up an image of a predetermined area outside the screen including a projection screen by the projector 1, and can pick up an image at an appropriate frame rate such as 29.97 hertz or 10 hertz. It is a thing.

  However, if the frame rate is too high, the processing becomes heavy and it becomes difficult to detect the presence or absence of motion between frames. Further, the image pickup means 11 used here is not necessarily a color image and may be one that can obtain only a monochrome image (however, it is preferable that the color depth is at least 8 bits even in monochrome).

  The image recognition unit 12 recognizes the captured image data captured by the imaging unit 11, that is, the captured image data for each frame output in time series. The operations of the imaging unit 11 and the image recognition unit 12 will be described later.

  On the other hand, as components provided in a conventional general projector, system control means 13, light source control means 14, light source 15, optical system 16, light source lamp cooling system control means 17, light source lamp cooling system 18, liquid crystal Light valve 19, projection lens 20, projection lens adjustment means 21, liquid crystal light valve cooling system control means 22, liquid crystal light valve cooling system 23, liquid crystal light valve control means 24, operation panel 25, display image input interface 26, projection image generation Means 27, an audio input interface 28, an audio amplifying means 29, a speaker 30 and the like are provided. In addition, there are components such as a power supply unit, but these are not shown.

  It should be noted that the operations performed by each of the constituent elements provided in these conventional general projectors and the functions possessed by each component are substantially the same as those in the prior art, and are particularly necessary for explaining the present invention. A description of the components that are not present is omitted. In addition, constituent elements related to the present invention will be described each time in the following description.

2A is a perspective view seen from the front side of the projector 1, and FIG. 2B is a perspective view seen from the rear side of the projector 1, and the same components as those in FIG. Yes.
As can be seen from FIG. 2A, in the projector 1 of this embodiment, the imaging lens 11 a of the imaging means 11 is provided in the vicinity of the projection lens 20 of the projector 1.

  The imaging lens 11a is adjusted in focus and zoom magnification in conjunction with the projection lens adjusting means 21. In addition, although the setting of the shooting range of the imaging unit 11 can be set to an arbitrary range, in this embodiment, as described above, the shooting range up to a predetermined range including the projection screen of the projector 1 is set as the shooting range. The settings are as follows.

  Further, in the present invention, since the function setting of the projector 1 can be performed on the projection screen, the operation panel 25 may not be provided on the projector side, but for the convenience of the user, FIG. 1 and FIG. As shown by 2, the operation panel 25 may be provided in the projector 1.

  Further, the projector 1 includes, as components other than those described above, a liquid crystal panel cooling system vent 41, a light source cooling system vent 42, an input terminal group 43 for various signals including a display image input interface 26 and an audio input interface 28, A power terminal 44, a sound output hole 45 from the speaker 30, and the like are provided.

With this configuration, the function setting operation of the projector 1 of the present invention will be described. Note that the image display method of the projector 1 is not different from that of a conventional projector, and thus description thereof is omitted.
Various function settings of the projector 1 are performed after the operation mode of the projector 1 is shifted to a mode in which the function can be set (this is referred to as a function setting mode).

  First, an outline of an embodiment of the present invention will be briefly described with reference to FIG. FIG. 3 shows the state of the projection screen 10 and the user U when the user performs a certain function setting (luminance setting in FIG. 3) after shifting to the function setting mode.

  As can be seen from FIG. 3, a function setting guide message M4 such as “hold your hand over the icon” is displayed on the projection screen 10 projected from the projector 1, and the user U displays the function setting guide message M4. For example, when it is desired to lower the luminance a little more, “dark (−)” among the luminance setting icons IC21, IC22, and IC23 displayed in the function setting window (in this case, the luminance setting window WIN2). If you hold your hand over the brightness setting icon IC22, the brightness will decrease, and if you want to increase the brightness a little more, if you hold your hand over the brightness setting icon IC21 of "bright (+)", the brightness will increase. Become. The state of the brightness setting is displayed on an indicator ING1 indicating the brightness setting status.

  When the appropriate brightness is reached, the user can set various functions on the projection screen 10 while viewing the guide so that the brightness is determined by holding the hand over the “decision” brightness setting icon IC23. It is what. Hereinafter, the entire embodiment of the present invention will be described in detail.

In order to perform the function setting as shown in FIG. 3, it is first necessary to shift the operation mode of the projector 1 to the function setting mode. When the transition to the function setting mode is performed, a transition method according to the situation at that time is set. In particular,
(A) Immediately after the projector is turned on after the power is turned on (B) During normal operation displaying an image on the projection screen (called normal operation)
And set different migration methods.

  In this way, immediately after the operation is started after the power of (A) is turned on (hereinafter simply referred to as startup) and during the normal operation in which an image is displayed on the projection screen of (B) (hereinafter simply normal) The method of shifting to the function setting mode differs depending on each of the operations). Immediately after activation, various settings are generally made for the purpose of making it easier for the user to view the video. In addition, since a certain amount of time is required for initialization, light source warm-up, etc., it is possible to easily shift to the function setting mode using this time.

  On the other hand, when the transition method to the function setting mode from the normal operation is the same as the transition method (detailed later) in which the user is to perform the transition operation in the projection screen area, Depending on the contents of the displayed image (moving image), there is a possibility that the function setting mode may be shifted to the self-recognition by the erroneous recognition of the image recognition unit 12 even though the user has not performed the transfer operation. Cannot be excluded. Accordingly, during a normal operation, the operation for shifting to the function setting mode performed by the user outside the projection screen area is recognized. This will be described later.

  FIG. 4 is an example of function setting mode transition guide information that is projected onto the projection screen 10 or the like by the projector 1 immediately after startup, and this function setting mode transition guide information is an image generated by the projector 1. Is generated by the projection image generation means 27 in accordance with an instruction from the system control means 13. In FIG. 4, an outer frame C <b> 1 represents the outer periphery of the projection screen 10 projected by the projector 1.

  In FIG. 4, function setting mode transition guide information G <b> 1 for guiding the transition to the function setting mode is displayed in the projection screen 10. This function setting mode transition guide information G1 indicates how to shift to the function setting mode immediately after the startup described above.

  As shown in FIG. 4, as the function setting mode transition guide information G1, a transition guide message indicating how to shift to the function setting mode, such as “If you hold your hand in the projection screen, the mode immediately shifts to the setting mode”. M1 is displayed. In addition to this transition guide message M1, a countdown message M2 indicating a countdown time such as “5 more seconds” is displayed. The time displayed in the countdown message M2 represents the time during which the user can shift to the function setting mode if the user performs an operation instructed by the transition guide message M1 within the displayed time.

  The initial value of the countdown setting time displayed as the countdown message M2 is set in advance in the projector 1 and is counted down by a timer (not shown) included in the system control means 13.

  Further, in addition to the transition guide message M1 and the countdown message M2, a guide image that specifically indicates what operation should be performed is displayed. That is, the guide image in this example may be a human image F imitating the projection screen 10 ′ and an actual user (an image that abstracts a doll or a person, an upper body image instead of a full body image, or an image of only a hand. May be displayed) and indicates what operation should be performed to shift to the function setting mode. In the example of FIG. 4, an example is shown in which the human image F holds a hand in the projection screen 10 ′.

  Then, when the user (not shown in FIG. 4) U (the user who actually operates) performs the same operation while imitating the operation of the human image F within the time represented by the countdown message M2 described above, the function is performed. A transition is made to the setting mode (this will be described later).

Here, if the user U does not perform an operation instructed by the transition guide message M1 even when the time represented by the countdown message M2 reaches 0, the screen changes to the projection screen as shown in FIG. The function setting mode transition guide information G2 is displayed.
FIG. 5 shows the case where the user U performs the function setting operation of the projector 1 during the actual display operation by the projector 1, that is, the function setting mode in the normal operation of the above-described (B). It shows how to move.

As shown in FIG. 5, the transition to the function setting mode during normal operation is performed as a transition guide message M3, such as “If you shake your hand on the outer periphery of the projection screen, the mode will immediately shift to the setting mode”. A message indicating how to enter the setting mode is displayed.
Further, in addition to the transition guide message M3, a guide image that specifically indicates what operation should be performed is displayed. That is, in the example of FIG. 5, an image showing the projection screen 10 ′ and a human image F imitating an actual user are displayed to show what operation should be performed.

  In the example of FIG. 5, the human image F is one of the predetermined areas R1 and R2 set on the left and right sides outside the projection screen 10 ′ (the predetermined area set on the right side of the projection screen 10 ′ in FIG. 5). R1) shows an example in which the hand is held up (in this example, the hand is shaken up and down). The predetermined areas R1 and R2 are areas for recognizing a function setting mode transition operation performed by the user, and are hereinafter referred to as recognition areas R1 and R2.

As described above, in the display state of the function setting mode transition information G1 immediately after startup (see FIG. 4), the operation indicated by the transition guide message M1 by the user U within the time displayed by the countdown message M2 (this When the first function setting mode transition operation is performed), the function setting mode is entered. However, when the time indicated by the countdown message M2 reaches zero without performing the first function setting mode transition operation. The function setting mode transition guide information G2 as shown in FIG. 5 is displayed for an appropriate time (a time that allows the user to confirm the contents of the function setting mode transition guide information G2, for example, several seconds).
When the display of the function setting mode transition guide information G2 as shown in FIG. 5 ends, the projector 1 transitions to a state where normal operation is possible.

  By performing the series of operations as described above when the projector 1 is started up, the user U not only shifts to the function setting mode at startup but also shifts to the function setting mode during normal operation of the projector 1. You can know how. Then, during this normal operation, if an operation similar to the function setting mode transition guide information G2 shown in FIG. 5 (this is referred to as a second function setting mode transition operation) is executed, even during the normal operation of the projector 1 The function setting mode can be entered.

  Note that how the projector 1 recognizes these operations by the user U when the first function setting mode transition operation or the second function setting mode transition operation is performed will be described in detail later.

  FIG. 6 is a flowchart for schematically explaining the flow of operation of the projector 1 when the projector 1 described above is activated. In FIG. 6, first, when the power of the projector 1 is turned on by the user U who is a user (step S1), the operation of the projector 1 is started. In FIG. 6, the operation of the projector 1 is shown for each of software and hardware.

  After the power is turned on and various data are initialized (step S2), a projection image (function setting mode transition guide information G1) at the time of activation as shown in FIG. 4 is generated and countdown is performed. Is started (step S3). On the other hand, when the power is turned on, hardware activation / initialization and light source warm-up are started (step S4). Further, the function setting mode transition guide information G1 generated in step S3 is projected and displayed (step S5), and the imaging unit 11 captures a projection image by receiving a capture instruction (step S6) (step S7).

  As described above, the imaging means 11 continues to generate imaging data by capturing a predetermined range including the projection screen 10, and the imaging data is digitized, and then imaging data for a plurality of frames is obtained. It is stored in a frame buffer (not shown) that can be stored. And the imaging data image | photographed with the imaging means 11 is acquired from a frame buffer (step S8), and it is determined whether it transfers to function setting mode based on the acquired imaging data (step S9).

  Whether or not to shift to the function setting mode is determined by determining whether or not the user U has performed the first function setting mode shifting operation with respect to the function setting mode shifting guide information G1 generated in step S3. (This will be described later). Then, if the user performs the first function setting mode transition operation (for example, holding the hand in the projection screen 10 on which the function setting mode transition guide information G1 is projected), the image is recognized, It is determined from the recognition result that the first function setting mode transition operation has been performed, and the function setting mode is entered (step S10).

  On the other hand, if it is determined in step S9 that the function setting mode is not to be entered, a countdown end determination (determination as to whether the countdown set time has become zero) is performed (step S11), and the countdown must be completed. For example, the function setting mode transition guide information G1 is displayed and the operation of continuously capturing the information is determined as the function setting mode transition or until the countdown ends.

  If it is determined in step S11 that the countdown is completed, function setting mode transition guide information G2 is generated (step S12), and the function setting mode transition guide information G2 is displayed on the projection screen 10 for an appropriate time (the user It is a time that allows the content of the function setting mode transition guide information G2 to be confirmed, for example, for a few seconds (step S13). Then, when the display time of the function setting mode transition guide information G2 ends, the projector 1 transitions to a normal operation (step S14).

  Next, an image recognition method for performing the above-described function setting mode transition will be described. In the image recognition means 12 shown in FIG. 1, whether or not an operation for shifting to the function setting mode (first function setting mode shifting operation or second function setting mode shifting operation) has been executed by the user U. In this case, the first function setting mode transition operation is an operation in which the user U holds his / her hand in the projection screen 10, and the second function setting mode transition operation is performed by the user U in the projection screen 10. This refers to actions such as holding the hand over one of the recognition areas R1 and R2 set on the left and right sides of the outside (waving the hand up and down in this embodiment).

  The image recognition unit 12 reads the image data captured by the imaging unit 11 from the frame buffer. When imaging the projection screen 10 with the imaging means 11, as shown in FIG. 7, the imaging range Z (in FIG. 7, the imaging range Z is hatched) up to a predetermined range outside the projection screen 10 is included. It is given). At this time, the characteristic points of the projection screen 10 (assuming that they are the four corner points P1, P2, P3, and P4 of the projection screen 10) have already been acquired when the function setting mode transition guide information G1 is displayed at the time of activation. Also.

  This feature point extraction technique is a publicly known method by Moravec Operator (reference: Hideyuki Tamura, “Computer Image Processing” pp.243-344, Ohmsha, 2002) and Harris Operator. (Reference: C. Harris and M. Stephens, “A combined corner and edge detector”, 4th Alvey Vision Conference, pp. 147-151, 1988) are known and can be used.

  First, a case where the first function setting mode transition operation performed by the user U with respect to the function setting mode transition guide information G1 shown in FIG. In this case, since the hand Uh of the user U is held over the projection screen 10, an area that is an image recognition target (hereinafter referred to as a recognition area) may be within the projection screen 10. The function setting mode transition guide information G1 shown in FIG. 4 is a relatively bright image.

  Here, it is assumed that the user U performs a first function setting mode transition operation as illustrated in FIG. 8 in response to the transition guide message M1 in the function setting mode transition guide information G1 as illustrated in FIG.

  As a result, the captured image obtained from the imaging unit 11 is an image in which the contour of the hand Uh of the user U appears, the color of the portion projected onto the hand Uh changes, or the hand Uh appears on the projection screen 10. This is an image with a shadow.

  Here, when the difference is calculated by calculating the difference between a plurality of consecutive frames obtained in time series from the imaging means 11, it can be seen that there is an obvious change between the consecutive frames. It can be seen that U's hand Uh is held in the projection screen 10. This means that the first function setting mode transition operation has been executed by the user U, and thus the projector 1 transitions to the function setting mode. Note that detection of the movement of the hand Uh of the user U by difference calculation will be described later with reference to FIG.

  FIG. 9 is a time chart for explaining the timing of shifting to the function setting mode immediately after the activation of (A) described above. In FIG. 9, the time proceeds in the right direction in the figure, and one scale T on the time axis represents an acquisition period (second) of one frame. The vertical axis represents the presence or absence of movement in the projection screen 10, and shifts to the function setting mode when movement is detected within the countdown setting time.

  This will be explained in correspondence with the projection screen and the movement of the user's hand. With respect to the projection image as shown in FIG. 9A (this is the same state as in FIG. 4), within the countdown set time. (B) to (c), the user U's hand Uh (only the hand Uh is shown in FIG. 9) outside the projection screen 10 is present in the projection screen 10. Once entered, the function setting mode is entered at that time.

  Next, image recognition during the normal operation of (B) will be described. In the case of (B), the user U performs an operation (second function setting mode transition operation) such as waving his hand in one of the recognition regions R1 and R2 set on the left and right sides outside the projection screen 10. Therefore, the recognition area may be set so as to include a predetermined area outside the projection screen 10, but this recognition area is only the recognition areas R 1 and R 2 set on the left and right sides outside the projection screen 10. Also good.

  Here, the user U imitates the operation of the human image F displayed on the projection screen 10 ′ as shown in FIG. 5, and the user U moves in the recognition area R1 outside the projection screen 10 as shown in FIG. Is moved up and down (second function setting mode transition operation).

  As described above, when the operation of shaking the hand in the recognition region R1 outside the projection screen 10 (second function setting mode transition operation) is performed, the difference calculation is performed on the captured images of a plurality of frames obtained in time series. It can be seen that there is a clear change between the frames (if the hand is shaken for 1 second, it is detected that there is movement over 10 frames). Thereby, it can be seen that the hand is waved in the recognition region R1. Therefore, if it is determined by the user that the second function setting mode transition operation has been performed for a predetermined validity determination time (described later), the projector 1 shifts to the function setting mode.

  FIG. 11 is a time chart for explaining the timing of shifting to the function setting mode during the normal operation of (B) described above. In FIG. 11 as well, as in FIG. 9, the time proceeds in the right direction in the figure, and one scale T on the time axis represents an acquisition period (second) of one frame. The vertical axis represents the presence or absence of movement in the projection screen, and the function setting mode is entered when movement for a certain period of time is detected in the recognition area R1.

  Since the projector 1 is in the normal operation mode at the stage shown in FIG. 11, some images are displayed on the projection screen 10 shown in (a), (b), (c), (d),. Assume that a signal is displayed.

  Here, within the countdown setting time, as shown in FIGS. 5B, 5C, 5D,..., The user U's hand Uh is within the recognition area R1 set outside the projection screen 10. For example, when an operation of swinging up and down (second function setting mode transition operation) is performed, a corresponding motion detection is performed, and a valid determination time MT (M is a preset time for detecting the motion) is detected. It is determined whether or not the number of frames, T is one frame acquisition period), and when a preset valid determination time MT is reached (that is, movement is performed over M consecutive frames in the recognition region R1). When it is detected, the function setting mode is entered.

  As described above, the operation for shifting to the function setting mode in either the method of shifting to the function setting mode immediately after the start of (A) or the method of shifting to the function setting mode during the normal operation of (B) ( When the user executes the first function setting transition operation or the second function setting transition operation), the projector 1 shifts to the function setting mode.

  When it is determined that the first function setting transition operation or the second function setting transition operation is valid, a beep sound or a click sound is generated, or the transition guide messages M1 and M3 are highlighted or blinking. You may make it perform operation sense presentation, such as a display. As a result, the user U can realize that he / she has performed the first function setting transition operation or the second function setting transition operation, and the first function setting transition operation or the second function. It is possible to know that the projector 1 has properly recognized the setting transfer operation.

  FIG. 12 is a flowchart for explaining the overall operation of the projector 1 during normal operation. In FIG. 12, first, an image signal to be projected is subjected to image signal processing (step S21), and is projected and displayed (step S22). Then, a capture instruction is given to the imaging unit 11 (step S23), whereby the imaging unit 11 captures a projection image (step S24).

  As described above, the imaging unit 11 continuously captures a predetermined range including the projection screen 10 and the recognition regions R1 and R2, and generates imaging data. The imaging data is digitized and then a plurality of frames. The image data is stored in a frame buffer (not shown) that can store the image data.

  And the imaging data image | photographed by step S24 is acquired from a frame buffer (step S25), and the motion detection in recognition area | region R1 or R2 is performed from the acquired imaging data (step S26). Subsequently, using this motion detection result, it is determined whether or not to shift to the function setting mode (step S27). If it is not determined to shift to the function setting mode, the recognition area R1 is determined from the imaging data. Alternatively, the motion detection in R2 is continued as it is. On the other hand, if it is determined that the function setting mode is to be entered, the function setting mode is entered (step S28).

  As described above, when the projector 1 is activated or in a normal operation, the user can perform various function tone settings of the projector 1 on the projection screen 10 by shifting to the function setting mode. The function setting operation of the projector in this function setting mode will be described.

  The function setting menu of the projector that can be executed in the function setting mode has, for example, a hierarchical structure as shown in FIG. In the example of the hierarchical structure of the function setting menu shown in FIG. 13, for example, the function setting menu is divided into three menu groups MN1, MN2, and MN3. The menu group MN1 has functions of contrast, color strength, hue, and sharpness. The menu group MN2 includes function setting menus for brightness, aspect ratio, input switching, and volume. The menu group MN3 includes function setting menus such as mute, upside down, and keystone distortion correction. include. The function setting menu shown in FIG. 13 is an example, and the hierarchical structure is an example, and is not limited to this.

  Of these, contrast, color saturation, hue, sharpness, brightness, volume, trapezoidal distortion adjustment, etc. can be selected by selecting either “+” or “negative” respectively. “-” And “decision” for determining the setting degree can be performed. In addition, when the aspect ratio is selected, for example, any specific numerical value such as “4: 3” or “16: 9” can be set. If input switching is selected, any of “VGA”, [S video], and “video” can be set. Further, mute and upside down can be set to either “ON” or “OF”.

  FIG. 14 shows an example of function setting menu display information displayed on the projection screen 10. In this function setting menu display information, various function setting menus belonging to the menu groups MN1, MN2 and MN3 shown in FIG. 13 (in FIG. 14, function setting menus belonging to the menu group MN2 are shown) can be selected. A menu selection window WIN1, a function setting guide message M4 such as “hold your hand over the icon”, and a display position switching icon IC1 that can switch the display position of the menu selection window WIN1 to either the left or right of the projection screen. Is done.

  The menu selection window WIN1 displays menu selection icons IC2, IC3, IC4, and IC5 as function setting menu selection information. The menu selection icon IC2 is an icon for selecting a brightness setting menu, and the menu selection icon IC3 is an aspect ratio. An icon for selecting a setting menu, a menu selection icon IC4 is an icon for selecting an input switching menu, and a menu selection icon IC5 is an icon for selecting a volume setting menu.

  In addition to these menu selection icons IC2, IC3, IC4 and IC5, there are a previous menu icon IC6 for moving to the previous menu group and a next menu icon IC7 for moving to the next menu group.

  When the user U holds the hand Uh over one of these menu selection icons IC2, IC3, IC4, IC5, the previous menu icon IC6, or the next menu icon IC7 for 1 second or more, the function setting corresponding to the icon can be set. Become. For example, when a hand is held over the menu selection icon IC2 for 1 second, a function setting window (in this case, a luminance setting window WIN2) as shown in FIG. 15 and an indicator ING1 indicating the luminance setting status are displayed.

  At this time, in FIG. 14 described above, the menu selection icon IC2 for setting the brightness is displayed on the upper right side of the projection screen 10, and is displayed by the user U holding his hand over the menu selection icon IC2. The brightness setting window WIN2 to be displayed is displayed at a position away from the menu selection icon IC2 displayed in FIG. 14, as shown in FIG.

The brightness setting window WIN2 displays function setting contents indicating what function setting is to be performed. For example, the function setting content for the menu selection icon IC2 is for setting the brightness to a certain appropriate value, and is for instructing “bright (+)”, “dark (−)”, and “decision”. Brightness setting icons IC21, IC22, and IC23 are displayed in the brightness setting window WIN2.
In the example of FIG. 15, the brightness setting window WIN2 is displayed at the lower right side of the projection screen, and the indicator ING1 is displayed at substantially the center of the projection screen.

Thus, the brightness setting window WIN2 displayed when the user holds the hand over the menu selection icon IC2 is at a position different from the display position of the menu selection icon IC2 displayed in FIG. 14, as shown in FIG. It is trying to display.
In FIG. 14, by holding the hand over a certain menu selection icon, when the contents as shown in FIG. 15 are displayed, the user can keep holding the hand on the projection screen 10. This is because consideration was given so that it can be done (it is not necessary to retract the hand each time).

  That is, in the function setting menu having a hierarchical structure, when the user holds a hand over a menu selection icon having a higher hierarchy, a function setting icon in a lower hierarchy of the menu selection icon (for example, menu selection icon IC2) is displayed. The function setting window (for example, the brightness setting window WIN2) is displayed at a position away from the menu selection icon which is the upper hierarchy, so that the recognition area of both can be changed, and the user projects his hand each time. Image recognition can be performed continuously without being retracted outside the screen.

  Therefore, in the projection screen of FIG. 14, any one of the icons positioned above the projection screen 10 (for example, the menu selection icon IC2 for setting the brightness or the menu selection icon IC3 for setting the aspect ratio) is selected. In this case, function setting windows (luminance setting window and aspect ratio setting window) corresponding to these icons are displayed below the projection screen 10.

  On the other hand, on the projection screen 10 in FIG. 14, one of the icons (a menu selection icon IC4 for switching input, a menu selection icon IC5 for setting sound volume, etc.) located below the projection screen 10 is selected. In some cases, function setting windows (input switching setting window and volume setting window) corresponding to these icons are displayed above the projection screen 10.

  For example, FIG. 16 shows an example in which a volume setting window WIN3 corresponding to the menu selection icon IC5 for setting the volume in FIG. 14 is displayed as a result of the user holding the hand, and in this case, the volume is set. 14 is displayed on the lower right side of the projection screen 10 in FIG. 14, the volume setting window WIN3 corresponding to the function selection window is displayed on the upper right side of the projection screen 10 as shown in FIG. Is displayed. In this case as well, an indicator ING2 indicating the volume setting status is displayed as an indicator indicating the setting status.

  When the previous menu icon IC6 or the next menu icon IC7 is selected, a menu selection window (not shown) corresponding to the menu group MN1 or menu group MN3 shown in FIG. 13 is displayed. The display position of the window is set so as not to overlap the position where the user's hand is held at that time (the previous menu icon IC6 or the next menu icon IC7 in FIG. 14).

  By the way, in the brightness setting window WIN2 in FIG. 15, when the user U puts his hand over the brightness setting icon IC21 of “bright (+)”, the brightness changes to the bright side, and the degree of the change is indicated by the indicator ING1. Conversely, when the hand is placed over the “dark (−)” luminance setting icon IC22, the luminance changes to the dark side, and the degree of the change is indicated by the indicator ING1. When an appropriate luminance is obtained, when the hand is placed over the “determined” luminance setting icon IC23, the luminance at that time is set.

  In this way, after setting the luminance, if, for example, the volume setting is performed next, the hand is held over the menu selection icon IC5 for setting the volume on the projection screen of FIG. As shown in FIG. 16, a volume setting window WIN3 is displayed. Similar to the brightness setting, when the hand is placed over the volume setting icon IC51 of “large (+)”, the volume changes to the larger side, and the change The degree is indicated by an indicator ING. Conversely, when the hand is held over the “small (−)” volume setting icon IC 52, the volume changes to the lower side, and the degree of the change is indicated by the indicator ING 2. When an appropriate sound volume is obtained, a hand is placed over the “determined” sound volume setting icon IC 53 to set the sound volume at that time.

  When the setting of the function setting menu belonging to the menu group MN2 shown in FIG. 14 is completed, when the hand is placed over the “next menu” icon in FIG. 14, the next menu belongs to, for example, the menu group MN3. Function settings for function setting menus such as mute, upside down and trapezoidal distortion can be made.

  When all the function settings to be set are completed, a series of setting modes is ended by holding the hand over the “end icon”, which is not illustrated here. In addition, in the state of FIG. 14, when it is desired to return to the previous menu, the user can return to the previous menu group by holding the hand over the “previous menu” icon.

  Further, as described above, the display position switching icon IC1 for switching the display position of the menu selection window WIN1 to the left side or the right side in the projection screen 10 is displayed on the projection screen 10, and the display position switching icon IC1 is hand-held. By holding over, the display position of the menu selection window WIN1 can be switched to the left side or the right side in the projection screen 10.

  For example, FIG. 14 shows an example in which the menu selection window WIN1 is displayed on the right side in the projection screen 10. However, when the user U's hand is held over the display position switching icon IC1, FIG. In addition, the display position of the menu selection window WIN1 is switched to the left side in the projection screen 10. This function is intended to allow a user located on either the left or right side of the projection screen 10 to perform a function setting operation.

  As described above, the user performs the operation (the first function setting mode transition operation or the second function setting mode transition operation) for shifting to the function setting mode shown in FIG. 8 or FIG. Then, the projector 1 can shift to the function setting mode. When the projector 1 shifts to the function setting mode, for example, by holding the hand over a certain menu selection icon displayed in the menu selection window WIN1 as shown in FIG. A function setting window (for example, a brightness setting window WIN2 as shown in FIG. 15) corresponding to the selected icon is displayed, and various settings can be performed by the function setting window.

  Here, how to detect an operation in which the user holds his / her hand over one icon (this is called an icon operation) will be described with reference to FIGS. Here, the example of FIG. 14 described above is used.

  FIG. 18 is an image of the projection screen 10 shown in FIG. The imaging range Z by the imaging means 11 covers a predetermined range including the projection screen 10 and the recognition areas R1 and R2. Note that the image capturing range Z by the image capturing means 11 is shaded in gray in the figure, but in FIG. 18, gray hatching is omitted in the projection screen 10.

  FIG. 19 is a diagram for explaining identification of menu selection icons IC1, IC2,..., IC7 within the imaging range Z (referred to as icon regions, which are indicated by bold lines in FIG. 19). As described above, since the information of the feature points on the projection screen 10 (the points P1, P2, P3, and P4 at the four corners of the projection screen) is acquired immediately after the projector 1 is activated, the feature point information and the function of projecting display are performed. From the image information of the setting menu (for example, the function setting menu shown in FIG. 14), which position in the imaging range Z of the imaging means 11 each icon area corresponding to the menu selection icons IC1, IC2,. Position information (coordinate information) can be specified.

  After the position information of the menu selection icons IC1, IC2,..., IC7 is specified in this way, the menu selection icons IC1, IC2,... Displayed on the projection screen 10 as shown in FIG. , IC7 (here, the menu selection icon IC2 for setting the brightness) is operated as an icon. When the display portion of the menu selection icon IC2 in which this icon operation is performed is enlarged, it is as shown in FIG.

  If the menu selection icon IC2 is not operated, the display portion is as shown in FIG. That is, in FIG. 21, compared with FIG. 22, the display portion of the menu selection icon IC2 is distorted by being projected onto the surface of the hand Uh that is a three-dimensional object. The color of the projection screen also changes due to the influence of the color. Further, since the outline of the hand Uh and the finger and its shadow appear, a captured image before the hand Uh is held over (an image obtained by capturing FIG. 22) and a captured image when the hand Uh is held over (see FIG. As a matter of course, the captured images of the two images are different from each other.

  Therefore, as shown in FIG. 23, a difference calculation between captured images corresponding to each frame obtained in time series (difference calculation is performed only on each icon area, not on the entire imaging range Z). If the amount of change is calculated and it is equal to or greater than a preset threshold, it can be detected that the icon has been operated. This will be described with reference to FIG.

In FIG. 23, among the frames of the captured image obtained by the imaging unit 11, the current frame I n , the frame I n−1 one before the current frame, and the frame I two before the current frame n-2 is shown, it is reflected hand Uh user U in the current frame I n. The current frame I n captured image is the same as FIG. 21.

Here, in these three consecutive frames, a difference calculation is performed on the luminance values of the respective pixels of the frames I n-2 and I n−1 , and the difference image (| I n−2 −I n−1 | ) Similarly, by performing a difference operation of the frame I n-1 and frame I n, the difference image obtaining (| | I n-1 -I n).

Then, in each of these difference images, the sum of the brightness of each pixel for each difference image (the sum of the brightness of the pixels in the difference image of frame I n-2 and frame I n-1 is defined as D n-1. , the frame I n-1 and a brightness sum of the pixels in the difference image frame I n and D n) of the determined threshold value sum D n-1 and D n the brightness of these pixels are preset respectively It is determined whether or not it is greater than Th.

In this case, the amount of change between the frame I n-2 and the frame I n-1 is almost equal to zero, and the sum of the brightness of the difference image (| I n-2 -I n-1 |) is D n-1 < Th. On the other hand, the variation of the frame I n-1 and frame I n is due to the presence of the hand of the user in the frame I n, the amount of change is large, the difference image brightness of (| | I n-1 -I n) The sum of the values is D n-1 ≧ Th.

  Note that the threshold Th is set to a value close to the sum of the brightness of pixels corresponding to the amount of change in the image due to the user's hand being held. Accordingly, it is possible to prevent a small image change from being determined as a user icon operation.

  If the user does not move his / her hand over the icon (in this case, the menu selection icon IC2) as it is, a change is hardly detected even if a difference calculation is performed between frames obtained in time series (change amount). <Threshold value>, it can be seen that the menu selection icon IC2 holds the state where the icon is operated.

  Thus, after it is detected that the hand is held over the menu selection icon IC2, for example, if there is no change in 10 frames, that is, if the change amount <threshold, the menu selection icon IC2 is 1 It can be seen that the icon is operated for a second (the frame rate is 10 Hz).

  FIG. 24 is a time chart for explaining processing for determining whether or not an icon (menu selection icon IC2) is operated by the user. In FIG. 24, menu selection icons IC6 and IC2 are shown in the menu selection window WIN1 displayed on the projection screen 10 of (a), (b), and (c) in order to simplify the illustration. , Only IC3 is shown.

  In FIG. 24, time proceeds in the right direction in the figure, and one scale T on the time axis T represents one frame acquisition cycle (seconds). On the vertical axis, ON / OFF indicates whether or not the user has operated the icon, ON indicates that the user has operated the icon (holds the hand), and OFF indicates no icon operation ( It indicates that the hand is not in hand.

  In other words, in the example of FIG. 24, the menu selection icon IC2 is operated by the user at a certain time, the icon operation state is held for N frames (NT time), and then the icon operation is released. Yes. If the N frame is 10 frames, it can be determined that the icon IC2 has been operated for 1 second (the frame rate is 10 Hz). Of course, the icon operation may be continuously performed for one second or more.

  FIG. 25 is a flowchart for explaining a process for determining whether or not an icon operation has been performed. In FIG. 25, first, the number N of frames is set to 0 (step S30). Then, the imaging unit 11 captures the imaging range Z including the projection screen 10 (step S31), updates the frame (step S32), and captures the imaging data of the nth frame (current frame) and the (n-1) th. The imaging data of the frame (the previous frame) and the coordinate information of the icon area of the icon being operated at that time (coordinate information on the imaging range Z in the imaging means 11) are acquired (step S33), and the icon Region motion detection (difference calculation) is performed (step S34).

  Subsequently, the presence / absence of motion detection is determined using the difference calculation result (step S35). If there is no motion, it is determined whether or not the icon operation has been performed up to this point (step S36). If not, the process returns to step S31, and if the icon is operated, N + 1 is added to the number N of frames (step S37). Then, it is determined whether or not “N = number of set frames (N = 10 in the above example)” (step S38). If “N = number of set frames”, it indicates that the icon operation is valid. The flag is turned on (step S39). If “N = number of set frames” is not satisfied in step S38, the process returns to step S31.

  If it is determined in step S35 that motion has been detected, and it is determined that there is motion, it is determined whether or not an icon operation has been performed up to this point (step S30), and the icon operation has not been performed. For example, assuming that the icon operation is started, N + 1 is added to the number of frames N (step S37), and as described above, it is determined whether or not “N = set number of frames (N = 10 in the above example)” (step S37). Step S38). If “N = number of set frames”, a flag indicating that the icon operation is valid is turned ON (step S39). If “N = number of set frames” is not satisfied in step S38, the process returns to step S31.

  On the other hand, if an icon operation has been performed in step S40, the process returns to step S30 to reset the frame number N to zero. This is a state in which the hand operating the icon is retracted.

  In the above-described operation, if it is determined that the icon operation by the user U is valid, before the display is switched to the next menu (or when the setting corresponding to the operation is actually reflected), a beep sound or a click is made. You may make it perform operation sense presentation, such as sounding and highlighting and blinking display of the selected icon. Thus, the user U can realize that the icon operation has been performed and can know that the projector 1 has properly recognized the icon operation.

  In addition, in FIGS. 19 to 25, an example of determining whether or not the user's icon operation on the menu selection icon IC <b> 2 for setting the brightness is valid is described. The determination process can be similarly performed for other icons.

  As described above, when any function setting operation is performed on the projector 1 by the user, the system control unit 13 performs control so that the setting content corresponding to the function setting operation is reflected in each hardware and software. . Thereby, the function setting operation performed by the user is reflected in the hardware and software of the projector 1.

  FIG. 26 is a flowchart schematically illustrating the overall processing flow in the function setting mode described so far. Since the detailed processing contents have already been described in detail, only the overall flow will be briefly described here.

  In FIG. 26, first, function setting menu display information (see FIG. 14 as an example) is generated (step S51), and is projected and displayed (step S52). The imaging means 11 captures the projection screen on which the function setting menu display information is displayed in response to a capture instruction (step S53) (step S54). Then, the imaging data is acquired (step S55), and the motion of the icon area is detected (step S56).

  Subsequently, it is determined whether or not the icon operation is valid based on the detection result (step S57). If the icon operation is valid, for example, a beep sound or a click sound is generated or the icon operation is performed as described above. The user is presented with a sense of operation such as highlighting or blinking the displayed icon (step 58), and if there is no further setting, the setting contents are reflected (step S59). ).

  As described above, according to the embodiment of the present invention, like a presenter in a presentation, a user located near the projection screen 10 projected by the projector 1 is installed away from the projector 1. Various function settings of the projector 1 can be performed by performing a very simple operation such as a user holding his / her hand without directly touching the screen, without using an auxiliary device such as a remote control or a pointing device such as a laser pointer. Can do.

  In addition, since the image recognition process performed by the present invention uses a relatively simple image recognition method rather than a complicated image recognition process, the cost of mounting image recognition software can be reduced.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention. For example, in the above-described embodiment, the function setting mode transition operation performed by the user or the icon operation performed after the transition to the function setting mode is performed using the user's hand, but the pointing member is not the user's hand. Of course, etc. may be used.

  Further, the present invention can create a processing program in which the processing procedure for realizing the present invention described above is described, and the processing program can be recorded on a recording medium such as a floppy disk, an optical disk, a hard disk, The present invention also includes a recording medium on which the processing program is recorded. Further, the processing program may be obtained from a network.

It is a block diagram explaining the structure of the projector which concerns on embodiment of this invention. It is a figure explaining the external appearance structure of the projector which concerns on embodiment of this invention, (a) is the perspective view seen from the front side, (b) is the perspective view seen from the back side. It is a figure explaining the concept of embodiment of this invention, and is a figure which shows the example which performs a function setting on a projection screen. It is a figure which shows the example of a projection screen which informs a user of the operation method for projecting immediately after starting of a projector to transfer to the function setting mode. It is a figure which shows the example of a projection screen which notifies a user about the operation method for transfering to a function setting mode at the time of normal operation | movement of a projector. 6 is a flowchart schematically illustrating an overall processing flow immediately after starting up the projector. It is a figure explaining extraction of the feature point (four corners of a projection screen) on a projection screen from a picked-up image which picturized a projection screen. It is a figure explaining operation (1st function setting mode transfer operation) by the user for making it transfer to function setting mode immediately after projector starting. It is a time chart explaining determination of 1st function setting mode transfer operation shown in FIG. It is a figure explaining operation (2nd function setting mode transfer operation) by the user for making it transfer to function setting mode at the time of normal operation of a projector. It is a time chart explaining determination of 2nd function setting mode transfer operation shown in FIG. 6 is a flowchart schematically illustrating an overall processing flow during normal operation of the projector. It is a figure explaining an example and its hierarchical structure of a function setting menu. FIG. 10 shows an example of a function setting menu selection screen, and shows a case where a menu selection window is displayed on the right side of the projection screen. It is a figure which shows an example of the brightness | luminance setting screen displayed when the menu selection icon for performing brightness | luminance setting is selected in FIG. It is a figure which shows an example of the volume setting screen displayed when the menu selection icon for performing volume setting in FIG. 14 is selected. It is a figure which shows an example of a function setting menu selection screen, and shows the case where a menu selection window is displayed on the left side of a projection screen. It is a figure which shows the example of the imaging range at the time of imaging the function setting menu selection screen of FIG. 14 with an imaging means. It is a figure explaining specification of an icon area. It is a figure which shows the example of a captured image when a hand is held over menu selection icon IC2 in the function setting menu selection screen of FIG. It is a figure which expands and shows the part in which the hand is held over menu selection icon IC2 in FIG. It is a figure which expands and shows the case where the hand is not over the menu selection icon IC2 in FIG. It is a figure explaining the example which performs a motion detection from the difference image obtained by carrying out difference calculation between the frames of the time series obtained by the imaging means. It is a time chart explaining the validity determination of the icon operation which a user performs. It is a flowchart explaining the validity determination of icon operation. It is a flowchart which illustrates roughly the flow of the whole process at the time of a function setting mode.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Projector, 10 Projection screen, 11 Imaging means, 12 Image recognition means, 13 System control means, 1C1 Display position switching icon, G1, G2 Function setting mode transition guide information, 1C2, IC3,..., 1C5 Menu selection icon, IC6 previous menu icon, IC7 next menu icon, M1 transition guide message, M3, M4 function setting guide message, M2 countdown message, WIN1 menu selection window, WIN2 brightness setting window, R1, R2 recognition area, Z imaging range

Claims (13)

  1. A projector that generates a projection image and projects it onto a projection screen,
    Imaging means for imaging the projection screen and outputting the captured image, image recognition means for recognizing the captured image output from the imaging means, and function setting information for setting a function of the projection Projection image generating means that can be generated as one of the images,
    Projecting the function setting information on the projection screen and recognizing a captured image obtained by imaging the projected function setting information, thereby determining a user's function setting operation performed on the projection screen And setting the function based on the result of the determination.
  2.   As a step before setting the function, the function setting mode transition guide information is projected onto the projection screen, and a captured image obtained by capturing a predetermined range including the projected function setting mode transition guide information is recognized as an image. The projector according to claim 1, further comprising: determining a function setting mode transition operation performed by the user, and shifting to the function setting mode based on a result of the determination.
  3.   When recognizing the user's function setting mode transition operation, when determining the user's function setting mode transition operation during its normal projection operation, a predetermined region set outside the projection screen is selected. The projector according to claim 2, wherein the projector is used as a recognition area when performing the image recognition, and the imaging unit images the projection screen and the predetermined area.
  4.   The projector according to claim 2 or 3, wherein the function setting mode transition guide information is information indicating an operation example to be performed by a user in order to shift to the function setting mode.
  5.   The image recognition process performed by the image recognition unit determines a change in a captured image between frames obtained in time series from the imaging unit, and shifts the function setting operation or the function setting mode of the user based on a result of the determination. The projector according to claim 1, wherein the projector is a process for determining an operation.
  6.   When determining the user's function setting operation or the function setting mode transition operation, it is determined whether or not the user's function setting operation or the function setting mode transition operation has been performed for a certain period of time, and continues for a certain period of time. The projector according to claim 5, wherein the function setting operation or the function setting mode transition operation of the user is determined to be valid when the operation is performed.
  7.   When it is determined that the user's function setting operation or the function setting mode transition operation is valid, a display indicating that the user's function setting operation or the function setting mode transition operation is valid is performed. Item 7. The projector according to Item 6.
  8.   The projector according to claim 1, wherein the function setting operation of the user is an operation in which the user holds a hand over a predetermined area of the projection screen.
  9.   The projector according to claim 2, wherein the user's function setting mode transition operation is an operation in which the user holds his / her hand over a predetermined area set in the projection screen or outside the projection screen.
  10.   The function setting information is a function setting menu selection information capable of selecting a function setting menu prepared corresponding to various functions, and a function indicating what function is set for each function setting menu selection information. When the function selection menu selection information is selected by the user on the projection screen, the function setting content corresponding to the function setting menu selection information is displayed on the projection screen. The projector according to claim 1, wherein the projector is a projector.
  11.   When displaying the function setting content corresponding to the certain function setting menu selection information on the projection screen, the display position of the function setting content corresponding to the function setting menu selection information on the projection screen is the function setting menu selection The projector according to claim 10, wherein the position is different from the information display position.
  12.   12. The projector according to claim 10, wherein the function setting menu selection information and the function setting contents corresponding to the function setting menu selection information are displayed as icons.
  13. A projector function setting method for setting projector functions,
    Projecting function setting information for performing the function setting on a projection screen;
    Photographing function setting information projected on the projection screen with an imaging means;
    Determining a function setting operation of a user performed on the projection screen by recognizing the captured image;
    Performing the function setting based on a result of the determination;
    A function setting method for a projector, comprising:
JP2003379910A 2003-11-10 2003-11-10 Projector and method for setting projector function Withdrawn JP2005141151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003379910A JP2005141151A (en) 2003-11-10 2003-11-10 Projector and method for setting projector function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003379910A JP2005141151A (en) 2003-11-10 2003-11-10 Projector and method for setting projector function

Publications (1)

Publication Number Publication Date
JP2005141151A true JP2005141151A (en) 2005-06-02

Family

ID=34689807

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003379910A Withdrawn JP2005141151A (en) 2003-11-10 2003-11-10 Projector and method for setting projector function

Country Status (1)

Country Link
JP (1) JP2005141151A (en)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006038577A1 (en) * 2004-10-05 2006-04-13 Nikon Corporation Electronic device
JP2007233076A (en) * 2006-03-01 2007-09-13 Seiko Epson Corp Projection device and program
JP2008122749A (en) * 2006-11-14 2008-05-29 Seiko Epson Corp Projector and control method thereof, and program
JP2009031407A (en) * 2007-07-25 2009-02-12 Necディスプレイソリューションズ株式会社 Display apparatus
WO2009031457A1 (en) * 2007-09-04 2009-03-12 Canon Kabushiki Kaisha Image projection apparatus and control method for same
JP2009157174A (en) * 2007-12-27 2009-07-16 Nikon Corp Digital camera with projector function
JP2009223231A (en) * 2008-03-18 2009-10-01 Ricoh Co Ltd Projection system
JP2011053990A (en) * 2009-09-02 2011-03-17 Nippon Telegr & Teleph Corp <Ntt> External equipment cooperation apparatus and method, and external equipment cooperation control program
JP2011129068A (en) * 2009-12-21 2011-06-30 Panasonic Electric Works Co Ltd Display control system and display control method
CN102169281A (en) * 2010-02-25 2011-08-31 株式会社尼康 Projector
JP2011188024A (en) * 2010-03-04 2011-09-22 Sony Corp Information processing unit, method of processing information, and program
CN102223508A (en) * 2010-04-14 2011-10-19 鸿富锦精密工业(深圳)有限公司 Front projection control system and method thereof
EP2383609A1 (en) * 2010-04-30 2011-11-02 Samsung Electronics Co., Ltd. Interactive display apparatus and operating method thereof
JP2011239291A (en) * 2010-05-12 2011-11-24 Seiko Epson Corp Projector and control method
US8085243B2 (en) 2006-02-03 2011-12-27 Panasonic Corporation Input device and its method
JP2013069161A (en) * 2011-09-22 2013-04-18 Casio Comput Co Ltd Projector system, projector, control method and program
CN103186018A (en) * 2011-12-27 2013-07-03 精工爱普生株式会社 Projector and method of controlling projector
JP2013164658A (en) * 2012-02-09 2013-08-22 Ricoh Co Ltd Image display device
JP2013206044A (en) * 2012-03-28 2013-10-07 Denso It Laboratory Inc Information processor
JP2013238963A (en) * 2012-05-14 2013-11-28 Hitachi Solutions Ltd Interactive display device
JP2013257686A (en) * 2012-06-12 2013-12-26 Sony Corp Projection type image display apparatus, image projecting method, and computer program
JP2014115802A (en) * 2012-12-10 2014-06-26 Seiko Epson Corp Display device and method of controlling display device
JP2014142664A (en) * 2014-04-17 2014-08-07 Seiko Epson Corp Projector and control method
JP2014211858A (en) * 2013-04-18 2014-11-13 富士ゼロックス株式会社 System, method and program for providing user interface based on gesture
JP2014220792A (en) * 2013-04-08 2014-11-20 セイコーエプソン株式会社 Projector, display device, and method for controlling projector
US8957851B2 (en) 2011-09-22 2015-02-17 Casio Computer Co., Ltd. Projection apparatus, projection control method and storage medium storing program
JP2015052874A (en) * 2013-09-06 2015-03-19 セイコーエプソン株式会社 Display device, and control method of the same
US20150138513A1 (en) * 2013-11-20 2015-05-21 Seiko Epson Corporation Projector, and method of controlling projector
WO2015198747A1 (en) * 2014-06-24 2015-12-30 ソニー株式会社 Information processing device, information processing method, and program
US9645678B2 (en) 2012-12-18 2017-05-09 Seiko Epson Corporation Display device, and method of controlling display device
US9830023B2 (en) 2013-11-26 2017-11-28 Seiko Epson Corporation Image display apparatus and method of controlling image display apparatus
JP6275312B1 (en) * 2017-06-02 2018-02-07 キヤノン株式会社 Projection apparatus, control method therefor, and program
JP2018085118A (en) * 2017-12-12 2018-05-31 ソニー株式会社 Information processor, information processing method and program

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006038577A1 (en) * 2004-10-05 2006-04-13 Nikon Corporation Electronic device
US8330714B2 (en) 2004-10-05 2012-12-11 Nikon Corporation Electronic device
JPWO2006038577A1 (en) * 2004-10-05 2008-05-15 株式会社ニコン Electronic apparatus having a projector device
US8085243B2 (en) 2006-02-03 2011-12-27 Panasonic Corporation Input device and its method
JP5201999B2 (en) * 2006-02-03 2013-06-05 パナソニック株式会社 Input device and method thereof
JP2007233076A (en) * 2006-03-01 2007-09-13 Seiko Epson Corp Projection device and program
JP2008122749A (en) * 2006-11-14 2008-05-29 Seiko Epson Corp Projector and control method thereof, and program
JP2009031407A (en) * 2007-07-25 2009-02-12 Necディスプレイソリューションズ株式会社 Display apparatus
US8459805B2 (en) 2007-07-25 2013-06-11 Nec Display Solutions, Ltd. Display apparatus
WO2009031457A1 (en) * 2007-09-04 2009-03-12 Canon Kabushiki Kaisha Image projection apparatus and control method for same
JP2009064110A (en) * 2007-09-04 2009-03-26 Canon Inc Image projection device and control method therefor
US8118433B2 (en) 2007-09-04 2012-02-21 Canon Kabushiki Kaisha Image projection apparatus and control method for same
JP2009157174A (en) * 2007-12-27 2009-07-16 Nikon Corp Digital camera with projector function
JP2009223231A (en) * 2008-03-18 2009-10-01 Ricoh Co Ltd Projection system
JP2011053990A (en) * 2009-09-02 2011-03-17 Nippon Telegr & Teleph Corp <Ntt> External equipment cooperation apparatus and method, and external equipment cooperation control program
JP2011129068A (en) * 2009-12-21 2011-06-30 Panasonic Electric Works Co Ltd Display control system and display control method
JP2011175192A (en) * 2010-02-25 2011-09-08 Nikon Corp Projector
CN102169281A (en) * 2010-02-25 2011-08-31 株式会社尼康 Projector
CN102169281B (en) * 2010-02-25 2014-11-26 株式会社尼康 Projector
JP2011188024A (en) * 2010-03-04 2011-09-22 Sony Corp Information processing unit, method of processing information, and program
US9049376B2 (en) 2010-03-04 2015-06-02 Sony Corporation Information processing apparatus, information processing method, and program
US9516206B2 (en) 2010-03-04 2016-12-06 Sony Corporation Information processing apparatus, information processing method, and program
US10306136B2 (en) 2010-03-04 2019-05-28 Sony Corporation Information processing apparatus, information processing method, and program
US10015392B2 (en) 2010-03-04 2018-07-03 Sony Corporation Information processing apparatus, information processing method, and program
CN102223508A (en) * 2010-04-14 2011-10-19 鸿富锦精密工业(深圳)有限公司 Front projection control system and method thereof
EP2383609A1 (en) * 2010-04-30 2011-11-02 Samsung Electronics Co., Ltd. Interactive display apparatus and operating method thereof
JP2011239291A (en) * 2010-05-12 2011-11-24 Seiko Epson Corp Projector and control method
US8957851B2 (en) 2011-09-22 2015-02-17 Casio Computer Co., Ltd. Projection apparatus, projection control method and storage medium storing program
JP2013069161A (en) * 2011-09-22 2013-04-18 Casio Comput Co Ltd Projector system, projector, control method and program
JP2013134409A (en) * 2011-12-27 2013-07-08 Seiko Epson Corp Projector and control method of the same
CN106354343A (en) * 2011-12-27 2017-01-25 精工爱普生株式会社 Projector and method of controlling projector
CN103186018A (en) * 2011-12-27 2013-07-03 精工爱普生株式会社 Projector and method of controlling projector
CN103186018B (en) * 2011-12-27 2016-08-31 精工爱普生株式会社 Projector and the control method of projector
CN106354343B (en) * 2011-12-27 2019-01-08 精工爱普生株式会社 The control method of projector and projector
US9310938B2 (en) 2011-12-27 2016-04-12 Seiko Epson Corporation Projector and method of controlling projector
JP2013164658A (en) * 2012-02-09 2013-08-22 Ricoh Co Ltd Image display device
JP2013206044A (en) * 2012-03-28 2013-10-07 Denso It Laboratory Inc Information processor
JP2013238963A (en) * 2012-05-14 2013-11-28 Hitachi Solutions Ltd Interactive display device
JP2013257686A (en) * 2012-06-12 2013-12-26 Sony Corp Projection type image display apparatus, image projecting method, and computer program
JP2014115802A (en) * 2012-12-10 2014-06-26 Seiko Epson Corp Display device and method of controlling display device
US9645678B2 (en) 2012-12-18 2017-05-09 Seiko Epson Corporation Display device, and method of controlling display device
JP2014220792A (en) * 2013-04-08 2014-11-20 セイコーエプソン株式会社 Projector, display device, and method for controlling projector
JP2014211858A (en) * 2013-04-18 2014-11-13 富士ゼロックス株式会社 System, method and program for providing user interface based on gesture
JP2015052874A (en) * 2013-09-06 2015-03-19 セイコーエプソン株式会社 Display device, and control method of the same
US20150138513A1 (en) * 2013-11-20 2015-05-21 Seiko Epson Corporation Projector, and method of controlling projector
US9794536B2 (en) * 2013-11-20 2017-10-17 Seiko Epson Corporation Projector, and method of controlling projector
US9830023B2 (en) 2013-11-26 2017-11-28 Seiko Epson Corporation Image display apparatus and method of controlling image display apparatus
JP2014142664A (en) * 2014-04-17 2014-08-07 Seiko Epson Corp Projector and control method
WO2015198747A1 (en) * 2014-06-24 2015-12-30 ソニー株式会社 Information processing device, information processing method, and program
CN106462328A (en) * 2014-06-24 2017-02-22 索尼公司 Information processing device, information processing method, and program
JP6275312B1 (en) * 2017-06-02 2018-02-07 キヤノン株式会社 Projection apparatus, control method therefor, and program
JP2018085118A (en) * 2017-12-12 2018-05-31 ソニー株式会社 Information processor, information processing method and program

Similar Documents

Publication Publication Date Title
JP4727117B2 (en) Intelligent feature selection and pan / zoom control
RU2466447C1 (en) Image capturing device and method of controlling said device
JP5136669B2 (en) Image processing apparatus, image processing method, and program
US7034881B1 (en) Camera provided with touchscreen
US6624846B1 (en) Visual user interface for use in controlling the interaction of a device with a spatial region
US8520118B2 (en) Method of controlling display of digital photographing apparatus
US8466996B2 (en) Condition changing device
JP5936183B2 (en) Photography equipment
US20070140675A1 (en) Image capturing apparatus with zoom function
JP2009015828A (en) Image processing device, image processing method, and image processing program
US8289433B2 (en) Image processing apparatus and method, and program therefor
CN101772952B (en) Imaging device
JP2012124916A (en) Electronic camera
JP4929630B2 (en) Imaging apparatus, control method, and program
US20070146528A1 (en) Image capturing apparatus with through image display function
JP2004521551A (en) Remote camera control device
US8605188B2 (en) Camera having a rear-surface display section and an in-viewfinder display section
JP5219929B2 (en) Information processing apparatus and method, and program
US8520116B2 (en) Photographing apparatus and method
US20060092306A1 (en) Apparatus for and method of processing on-screen display when a shutter mechanism of a digital image processing device is half-pressed
JP2007028536A (en) Digital camera
KR20120074215A (en) Display control device, method and computer program product
JP2010268323A (en) Image pickup apparatus and program
JP5820181B2 (en) Imaging system and control method thereof, display control apparatus and control method thereof, program, and storage medium
WO2013054726A9 (en) Imaging device, and method and program for controlling same

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20070206