JP2011203328A - Projector, projector system, and image projection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a projector that automatically illuminates whole or a part of a paper document presented in front of a screen and enables a presenter to perform presentation while adding the document and the like without interrupting projection of an image to brighten a room, and allows the presenter to offer explanations while, for example, comparing contents of the projected image with the document presented in front of the screen.SOLUTION: A projector 100 includes: a projecting part 120 which projects an image to be projected corresponding to input image data; a sensor part 118 which senses a projected image area; an object identifying part 230 which identifies an object located within a sensing range of the sensor part 118; and an image data changing part 270 which changes the image data so that an area including at least a part of the identified object is illuminated.

Description

  The present invention relates to a projector, a projector system, and an image projecting method, and more particularly, to a projector, a projector system, and an image projecting method that can illuminate paper materials and the like listed on an image projected onto a screen.

  When giving a presentation while projecting an image on a screen or the like, there is a case where it is desired to show paper materials in addition to the image projected on the screen. In such a case, the presenter had to prepare materials for the number of participants in advance and distribute them before starting the presentation. In addition, even when the presenter puts the document on the screen and shows it to the participant, it is necessary to temporarily stop the image projection and brighten the room lighting.

  Thus, a projector having a function of switching a projected image to a spotlight by a predetermined operation at a timing when a presenter tries to show a paper material to a participant even during a presentation is known (for example, Patent Documents). 1). According to this projector, for example, when the presenter stands on the side of the screen and raises a paper document on the screen and operates the projector, the document can be spotlighted for easy viewing.

JP 2009-199854 A

  However, the projector described in Patent Document 1 requires a switching operation to a spotlight. Moreover, since it becomes impossible to see the content of the projected image when switching to the spotlight, it is not possible to adopt a method for explaining while comparing the content of the projected image with the material, for example.

  In order to solve the above problems, the present invention provides a projection unit that projects a projection image according to input image data, a sensor unit that senses the projection image region, and a sensing range of the sensor unit. There is provided a projector comprising: a target identifying unit that identifies an existing target; and an image data changing unit that changes the image data so that a region including at least a part of the identified target is illuminated.

  Such projectors can automatically illuminate some or all of the paper materials on the screen, so the presenter can interrupt the image projection and brighten the room lighting. Presentations can be made while adding materials and so on. In addition, since it is not necessary to interrupt the projection of the image, the presenter can explain the contents of the projected image by comparing the content of the projected image with the materials listed on the screen, for example.

  In the projector, the image data changing unit may change the image data so that white light is projected onto the area.

  Thereby, it becomes easier to visually recognize the region.

  In the projector, the image data changing unit may change the image data so that a portion other than the region in the projection image is darker than the region.

  As a result, the illuminated area can be more noticed.

  In the projector, the image data changing unit may change the image data so that the projected image includes an emphasis pattern that emphasizes the region.

  As a result, the illuminated area can be more noticed.

  In the projector, the target identifying unit may identify the position of the target following the movement of the target, and the image data changing unit may change the position of the region according to the movement of the target. Also good.

  The projector may further include a target identifying unit that identifies the type of the target, and the image data changing unit may change the image data based on a change condition according to the type of the target.

  Thus, for example, when a paper material is raised on the screen and when a sample is raised, it can be illuminated in a manner that makes it easier to see.

  Further, in the projector, the image data changing unit is configured to highlight the designated enhancement region in response to an enhancement region designation operation for designating an enhancement region within the region. Data may be changed.

  As a result, it is possible to highlight a portion that is desired to be noticed in the illuminated area.

  In addition, the present invention provides a projector system including any one of the projectors described above and an image data supply device that supplies image data of a projection image projected by the projector.

  In addition, the present invention projects a projection image corresponding to input image data, senses the projection image area, identifies a target existing in the sensing range, and includes at least a part of the identified target An image projection method is provided, wherein the image data is changed so that an area is illuminated.

1 is a schematic configuration diagram of a projector system 10 according to an embodiment of the present invention. 3 is a functional block diagram of a data processing unit 200. FIG. 4 is a flowchart illustrating an example of processing when a paper document placed on a projection surface of a screen is illuminated using the projector system 10. An example of the image imaged by the imaging unit 118 is shown. The projection image in a projection image shows the paper material which the user has in his hand. A state in which the document 600 is illuminated with white light is shown. A case where the document 600 moves within the imaging range is shown. An example in which a portion other than the surface of the document 600 in the projection image is darker than the surface of the document 600 is shown. An example in which an emphasis pattern 512 is projected so as to surround the document 600 is shown. This indicates a state in which no emphasis area designation operation is performed. This shows a state where an emphasis area designation operation has started. Indicates the state where the highlight area is specified. It is a front view which shows a mode that a projection image is projected on the projection surface of a screen using the direct projection type projector. It is a side view which shows a mode that a projection image is projected on the projection surface of a screen using the direct projection type projector.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. However, the following embodiment does not limit the invention according to the claims, and all combinations of features in the embodiment are based on the invention. It is not always essential to the solution.

  FIG. 1 is a schematic configuration diagram of a projector system 10 according to an embodiment of the present invention. As shown in FIG. 1, the projector system 10 according to this embodiment includes a projector 100 and a personal computer (PC) 50 that controls the projector 100.

  The projector 100 includes a lamp 110, an optical unit 111, a liquid crystal panel driving unit 112, a lamp driving unit 113, a power supply unit 114, an I / O bridge unit 115, a storage unit 116, a control unit 117, an imaging unit 118, an operation receiving unit 119, And a communication unit 160 and a data processing unit 200.

  The projector 100 separates the light emitted from the lamp 110, which is a light source, into three primary color components (red light, blue light, and green light), and the image generated by the data processing unit 200 based on the image data from the PC 50. In accordance with the signal, light of each color is modulated by a liquid crystal light valve (not shown) for each color light, which is a light modulation element included in the optical unit 111, synthesized again, and projected onto a projection surface such as a screen as a projection image. That is, the projector 100 of this example is a so-called “liquid crystal three-plate projector”. Hereinafter, in the configuration of the projector 100, when the lamp 110, the optical unit 111, the liquid crystal panel driving unit 112, and the lamp driving unit 113 are collectively shown, they are referred to as “projection unit 120”.

  The projector 100 includes an operation panel (not shown) provided with a plurality of operation buttons for operating the projector 100 on the upper surface of the main body of the projector 100. Further, the projector 100 can be remotely operated by a remote controller 310 provided with a plurality of operation buttons similar to the operation panel.

  The lamp 110 is, for example, a discharge lamp capable of obtaining high brightness such as a high-pressure mercury lamp, a metal halide lamp, or a halogen lamp. The optical unit 111 includes an integrator optical system that converts white light emitted from the lamp 110 into substantially parallel light having a stable luminance distribution, and red, green, and blue colors that are the three primary colors of light. A separation optical system that separates light components and supplies them to a liquid crystal light valve for each color light, and a combination optical system that recombines each color light modulated according to an image signal for each color light by the liquid crystal light valve (whichever (Not shown). The optical unit 111 projects a full-color image on a screen by projection light enlarged by a projection lens that incorporates full-color, substantially parallel modulated light emitted from the combining optical system.

  The liquid crystal panel driving unit 112 supplies a driving voltage and the like together with an image signal input from the data processing unit 200 to a liquid crystal light valve (not shown) of the optical unit 111, and projects a projected image on the liquid crystal light valve. The lamp driving unit 113 generates an igniter circuit (not shown) that forms a discharge path by generating a high voltage for lighting the lamp 110 that is a discharge lamp, and maintains a stable lighting state after lighting. And a ballast circuit (not shown).

  The power supply unit 114 includes an AC / DC conversion unit (not shown), and supplies a DC voltage stabilized by transforming, rectifying, and smoothing the AC power from the external power supply 320 to each unit of the projector 100. To do.

  The I / O bridge unit 115 is a south bridge, and is equipped with a card controller corresponding to PCMCIA (Personal Computer Memory Card International Association) for controlling the wireless LAN card of the communication unit 160.

  The storage unit 116 is configured by, for example, a non-volatile memory capable of rewriting data, such as a flash memory, and a hard disk. The storage unit 116 stores various programs and accompanying data for controlling the operation of the projector 100 such as a startup routine for starting the projector 100, for example. Further, the storage unit 116 may store image data for synthesizing a projection image to be projected on the screen by the projection unit 120.

  The control unit 117 exchanges signals with each unit via the bus line Bus. For example, the control unit 117 includes an arithmetic device such as a CPU (Central Processing Unit) or a microcomputer, and software that defines the operation thereof. For example, when receiving an operation signal indicating that image projection should be started from the operation reception unit, the control unit 117 inputs image data supplied from the PC 50 via the communication unit 160 to the data processing unit 200. When the image data is stored in the storage unit 116, the control unit 117 accesses the storage unit 116 and inputs the image data to the data processing unit 200.

  The imaging unit 118 has an imaging range set so that the entire projection image projected on the screen by the projection unit 120 is included, images the imaging range, and outputs the imaging data to the image processing unit 200. To do. Note that the imaging unit 118 may store the imaging data in the storage unit 116. The imaging unit 118 may output imaging data to the PC 50 via the communication unit 160.

  The operation reception unit 119 receives an operation from the remote control 310 or an operation panel (not shown) of the projector 100 and sends an operation signal serving as a trigger for various operations to the control unit 117.

  The communication unit 160 is a communication device that can transmit and receive various types of data to and from the PC communication unit 51 in the PC 50. For example, the communication unit 160 receives image data transmitted from the PC communication unit 51. Image data captured by the imaging unit 118 is transmitted to 51. As the communication unit 160, for example, a wireless LAN card compatible with at least one of the wireless LAN standards of IEEE 802.11a, IEEE 802.11b, or IEEE 802.11g is used.

  The data processing unit 200 performs various processes to be described later on the image data supplied from the PC 50 via the communication unit 160 and outputs an image signal for projection onto the screen.

  Next, a schematic configuration of the PC 50 will be described. The PC 50 is an example of an image data supply apparatus according to the present invention, and includes a PC communication unit 51, a PC display unit 52, a PC power supply unit 53, a PCI / O bridge unit 54, a PC hard disk 55, a PC control unit 56, and a PC storage unit 57. A PC operation unit 58 and a PC operation reception unit 59. In addition, in order to distinguish from the component name of the projector 100, “PC” is added to the component part of the PC 50 as described above.

  The PC communication unit 51 is a communication device that can transmit and receive various types of data to and from the communication unit 160 in the projector 100. For example, the PC communication unit 51 transmits image data to the communication unit 160 and is transmitted from the communication unit 160. Receive image data. For example, a wireless LAN card compatible with at least one of the wireless LAN standards of IEEE 802.11a, IEEE 802.11b, or IEEE 802.11g is used as the PC communication unit 51.

  The PC display unit 52 has a display screen that displays operation commands of the projector 100 and various icons. Further, the PC display unit 52 may display the projection image projected on the screen by the projection unit 120 of the projector 100 and the imaging data captured by the imaging unit 118 of the projector 100 on the display screen. As the PC display unit 52, various display devices such as CRT and LCD are used.

  The PC power supply unit 53 incorporates an AC / DC conversion unit (not shown), and supplies a DC voltage stabilized by transforming, rectifying, and smoothing the AC power from the external power supply 320 to each part of the PC 50. To do.

  The PCI / O bridge unit 54 is a south bridge, and various device controllers such as a card controller compatible with PCMCIA for controlling the PC communication unit 51 (wireless LAN card) and an IDE controller for controlling the PC hard disk 55. It is equipped with.

  The PC hard disk 55 is a hard disk corresponding to, for example, IDE, and stores programs such as an OS (Operating System) that is basic software, a browser, and various business software used for document creation and presentation. The PC hard disk 55 stores image data to be supplied to the projector 100.

  The PC control unit 56 is, for example, a CPU (Central Processing Unit), and controls the exchange of signals with each unit and the operation of each unit via the bus line Bus. For example, the PC control unit 56 executes various programs for controlling the operation of the PC 50 such as a connection program for connecting to the projector 100 and various protocol programs for performing communication by the PC communication unit 51.

  The PC storage unit 57 is configured by a non-volatile memory capable of rewriting data, such as a flash memory. The PC storage unit 57 stores various programs for controlling the operation of the PC 50 such as a program executed by the PC control unit 56, and data associated with the program. These programs and data may be stored in the PC hard disk 55.

  The PC operation unit 58 is a keyboard and a mouse. For example, various operations such as activation and shutdown of the PC 50 or editing / processing of image data supplied to the projector 100 are input. When an operation is input to the PC operation unit 58, the PC operation reception unit 59 receives the operation and sends an operation signal serving as a trigger for various operations to the PC control unit 56.

  Next, processing contents in the data processing unit 200 of the projector 100 will be described more specifically.

  FIG. 2 is a functional block diagram of the data processing unit 200. As shown in FIG. 2, the data processing unit 200 includes frame memories 210 and 220, a target detection unit 230, a target identification unit 240, a change area specification unit 250, an illumination pattern storage unit 260, an image data change unit 270, and an image signal. A generation unit 280 is included.

  The frame memory 210 stores input image data in units of frames. Then, the frame memory 210 outputs the stored image data to the image data changing unit 270 and the target detecting unit 230 in the order of input. In this example, projection timing data indicating the timing of projection as a projection image from the projection unit 120 is added to the image data input to the frame memory 210 for each frame, and the frame memory 210 stores the projection timing. Based on the data, the stored image data is output to the image data changing unit 270 and the target detecting unit 230 in time series of the projection timing.

  The frame memory 220 stores input image data in units of frames. And the imaging data to memorize | store is output to the object detection part 230 in the order input. Note that in this example, the imaging data input to the frame memory 220 is added with imaging timing data indicating the timing of imaging by the imaging unit 118 for each frame, similar to the above image data. Based on the imaging timing data, the stored imaging data is output to the target detection unit 230 in time series of imaging timing. For these frame memories 210 and 220, a non-volatile memory capable of rewriting data such as a flash memory is preferably used.

  The target detection unit 230 detects whether there is a target such as a paper document listed in the imaging range of the imaging unit 118. Specifically, the target detection unit 230 performs screen detection at one timing based on the projection timing data of the image data input to the frame memory 210 and the imaging timing data of the imaging data input to the frame memory 220. Image data of the projection image projected on the projection surface and imaging data obtained by imaging the projection image at the timing are acquired.

  Then, the target detection unit 230 generates luminance distribution data in which the luminance difference between the acquired image data and the imaging data is mapped in association with the position information within the imaging range. Here, the object detection unit 230 detects the position of the projection image within the imaging range by previously matching the imaging data and the image data, and the brightness distribution data is obtained from the newly acquired image data and imaging data. Generate.

  Then, the target detection unit 230 detects whether a target such as a user's hand or paper material exists within the imaging range of the imaging unit 118 from the generated luminance distribution data. Further, when any target is detected, the target detection unit 230 specifies the shape of the target and calculates the position of the target within the imaging range. Then, when the detected object moves within the imaging range, the object detection unit 230 calculates the position of the object following the movement.

  When the target is detected by the target detection unit 230, the target identification unit 240 identifies the type of the target. Specifically, the target identification unit 240 identifies the shape and color of the target detected by the target detection unit 230 from the above-described imaging data and the distribution data of the luminance difference generated by the target detection unit 230. . Then, the object identification unit 240 determines whether the object is, for example, a paper document placed on the projection surface based on a predetermined criterion based on the shape or color of the identified object or the user. Identify the type of target, such as The object identification unit 240 may store various object shapes and colors as pattern data, and may specify the object type from the closest pattern data such as the identified object shape and color.

  In place of this, the object identification unit 240 is one in which the object detected by the object detection unit 230 is, for example, paper material, and a barcode indicating the size, type, or the like is printed on the edge or the like. In some cases, the size and type of the target may be identified by reading the content of the barcode from the imaging data. Alternatively, a clip provided with one or a plurality of light emitting diodes that emit infrared light is attached to the edge of the target, and the size and type of the target are targeted for the light emitting pattern of the light emitting diode. By specifying the detection unit 230, the size and type of the object may be identified. In the case of this configuration, the imaging unit 118 has a function capable of detecting infrared light.

  In this example, the object identification unit 240 specifies the positional relationship between the identified object and the projection image in addition to the identification of the object. Specifically, the target identification unit 240 determines the position of the identified target and the position of the projection image from the luminance distribution data generated by the target detection unit 230, and specifies the positional relationship between them.

  Further, when the identified target moves within the imaging range, the target identifying unit 240 calculates the position of the target following the movement. Specifically, the target identifying unit 240 identifies the positional relationship between the identified target and the projection image at a predetermined time interval or every predetermined frame, so that the identified target is within the imaging range. Even if is moved, the position can be calculated.

  The change area specifying unit 250 specifies an area (illumination area) to be illuminated by the image light of the projection image among the objects identified by the object identifying unit 240. Specifically, the change area specifying unit 250 specifies an area in the projection image including at least a part of the detected object as an illumination area. In this example, the change area specifying unit 250 specifies the illumination area based on the shape of the target detected by the target detection unit 230 so that the entire detected target is illuminated. Instead of this example, when the detected object is, for example, a paper material on which characters or figures are described, the change area specifying unit 250 is an area on which characters or figures in the material are described. May be specified as the illumination area.

  In this example, the change area specifying unit 250 receives an area specifying operation (area specifying operation) by the user. And the change area specific | specification part 250 will set the designated area | region among the objects identified by the object identification part 240 as an illumination area | region, if the said area | region designation | designated operation is received.

  Further, in this example, the change area specifying unit 250 further accepts a designation operation (emphasis area designation operation) by the user of the highlight area to be highlighted in the illumination area. And the change area | region specific | specification part 250 will set the designated area | region in an illumination area as an emphasis area | region, if the said emphasis area designation | designated operation is received. A specific example of the emphasis region designation operation will be described in detail later.

  The illumination pattern storage unit 260 stores an illumination pattern corresponding to the object identified by the object identification unit 240. More specifically, the illumination pattern storage unit 260 stores, as an illumination pattern, an illumination setting that is most easily recognized by an audience watching the projection surface for objects having different materials and light reflection characteristics such as paper and an OHP film. For example, the illumination pattern storage unit 260 stores an illumination pattern indicating that, for example, paper material should be illuminated with white light.

  The image data changing unit 270 changes the image data input to the frame memory 210 so that the illumination area in the projection image specified from the imaging data by the change area specifying unit 250 is illuminated. More specifically, the image data changing unit 270 acquires an illumination pattern corresponding to the object specified by the object identifying unit 240 from the illumination pattern storage unit 260. Then, the image data changing unit 270 changes the image data corresponding to the illumination area based on the illumination pattern. Then, the image data changing unit 270 outputs the changed image data to the image signal generating unit 280.

  The image signal generation unit 280 generates an image signal for modulating light of each color in the liquid crystal light valve of the optical unit 111 based on the image data input from the image data change unit 270. Here, the image signal generation unit 280 may generate an image signal in accordance with the resolution of the liquid crystal light valve by performing a scaling process on the input image data. By performing the correction process, an image signal converted into a gradation value suitable for display by the liquid crystal light valve may be generated. In addition, the image signal generation unit 280 may generate an image signal in which the parameter setting value of the image data is changed based on an operation signal input from the control unit 117 in accordance with, for example, the user's operation on the remote control 310. .

  FIG. 3 is a flowchart illustrating an example of processing in the case of illuminating a paper material placed on the projection surface of the screen using the projector system 10. In this flow, first, based on the image data sent from the PC 50 to the projector 100, a projection image is projected from the projection unit 120 of the projector 100 onto the projection surface of the screen (step S500). Then, a projection image is captured by the imaging unit 118 of the projector 100 (step S505). An example of an image captured by the imaging unit 118 is shown in FIG. Here, as shown in FIG. 4, since the imaging range 520 by the imaging unit 118 is larger than the projection image 510, the imaging unit 118 generates imaging data in which a portion excluding the projection image 510 is deleted by filtering processing.

  Next, based on the image data used to synthesize the projection image by the target detection unit 230 in the data processing unit 200 of the projector 100 and the imaging data generated by imaging the projection image by the imaging unit 118, A target in the projected image is detected (step S510). Then, for example, when the paper material 600 held by the user is placed at the position shown in FIG. 5, the object detection unit 230 detects that there is an object to be illuminated on the projection image (step S515: YES). ), The target identifying unit 240 identifies that the target is the paper material 600 (step S520). In addition, when the said target is not detected (step S515: NO), the presence or absence of the target which should be illuminated is continuously detected by the target detection part 230 until the projection of an image is complete | finished (step S510).

  Next, the illumination area in the material 600 is specified by the change area specifying unit 250 (step S530). In this example, since characters are written on almost the entire surface of the material 600, the entire surface of the material 600 is specified as the illumination area. Then, the image data changing unit 270 changes the image data so that the entire surface of the material 600 specified as the illumination area is illuminated by the image light of the projection image (step S535). Here, when the illumination pattern storage unit 260 stores an illumination pattern indicating that the paper material should be illuminated with white light, the image data changing unit 270 illuminates the entire surface of the material 600 with white light. The image data is changed as described.

  As a result, as shown in FIG. 6, the region overlapping the surface of the document 600 in the projection image is replaced with a white solid image having the maximum luminance value, so that the document 600 is illuminated with white light (step S540). ). Thus, this flow ends.

  As shown in FIG. 7, even when the document 600 moves within the imaging range, the target detection unit 230 calculates the position of the document 600 following the movement, so the document 600 is on the projection image. In the meantime, the surface of the material 600 is always illuminated with white light. In addition, by selecting another illumination pattern stored in the illumination pattern storage unit 260 as an illumination pattern corresponding to the material 600, the change contents of the image data by the image data change unit 270 can be changed.

  As an example, as shown in FIG. 8, the image data can be changed so that a portion other than the surface of the material 600 in the projected image is darker than the surface of the material 600. As another example, the image data can be changed so that the emphasis pattern 512 is projected so as to surround the material 600 so that the material 600 is emphasized.

  Further, when the change area specifying unit 250 receives an enhancement area designation operation for enhancing a specific area on the surface of the material 600, an image corresponding to the specific area in the projection image is changed. In this example, when the target detection unit 230 detects that the user's hand exists within the imaging range, the target detection unit 230 further indicates whether or not the fingertip indicates a specific position from the detected hand shape. Is detected. Then, for example, as shown in FIG. 10, when the hand is held, it is determined that the emphasis region designation operation is not performed.

  On the other hand, for example, as shown in FIG. 11, when a specific portion P on the surface of the material 600 is designated with the index finger, the target detection unit 230 emphasizes the specific region starting from the designated portion P. It is determined that the specified operation has started. Then, the object detection unit 230 detects an area defined by the tip position P ′ and the designated portion P as the tip of the index finger moves as an emphasis area 610 on the surface of the material 600. As a result, for example, as shown in FIG. 12, the highlight region 610 is highlighted in a color different from the surroundings on the surface of the material 600.

  As described above, according to the projector system 10 according to the present embodiment, a part or all of the paper material or the like listed on the projected image on the screen can be automatically illuminated, so that the presenter can project the image. Presentations can be made while adding materials without interrupting operations such as brightening the room lighting. In addition, since it is not necessary to interrupt the projection of the image, the presenter can explain the contents of the projected image by comparing the content of the projected image with the materials listed on the screen, for example.

  In the present embodiment, the imaging unit 118 is an example of a sensor unit in the present invention. That is, the method of identifying the target is not limited to the method of identifying based on the imaging data captured by the imaging unit 118 as in the present embodiment, and for example, the distance to the target on the screen can be detected by the projector. An infrared sensor or an ultrasonic sensor is provided, and the area where the projected image is projected on the screen (projected image area) is sensed using these sensors, and the position and shape of the target existing within the range are specified. May be. Alternatively, for example, an optical sensor is arranged in a matrix on the screen, and a shadow created by an object placed on the screen during image projection (an area in which the amount of light is reduced relative to the area on which the image is projected) ) May be read by an optical sensor, and the obtained sensing data projector may acquire the target and the data processing unit 200 may detect and identify the target.

  In the present embodiment, the projector 100 is exemplified by a mode in which image light is projected from the front onto the projection surface of the screen. However, the projector 100 is installed above the screen as shown in FIGS. 13 and 14, for example. The projector may be a direct projection type projector that projects image light onto the projection surface from above. By projecting image light from above the screen in this way, not only can the presenter standing in front of the screen feel less dazzled, but also target objects such as materials pasted on the projection surface, It can be identified more accurately.

  Further, in the present embodiment, the projector system 10 including the liquid crystal three-plate projector 100 that modulates and projects the light from the light source by the liquid crystal light valve that is the light modulation unit is illustrated. It can also be configured using a projector that employs the method. More specifically, a projector employing a projection system using DMD (Digital Micromirror Device), that is, a so-called DLP (Digital Light Processing) (registered trademark) system may be used. Here, in the DLP method, the light from the lamp that shines in white is collected by the lens and applied to the DMD, and the light when the individual mirrors of the DMD are tilted to the on state is magnified by another lens and projected onto the screen. It is a method to do. In the present embodiment, the projector system 10 including the projector 100 that projects using a discharge lamp as a light source is exemplified. However, a projector that projects using an LED light source, a laser light source, or the like may be used as the light source.

  Further, instead of the system configured by the PC 50 and the projector 100, the projector 100 may include each function of the PC 50. That is, for example, a display unit corresponding to the PC display unit 52 may be provided in the projector 100 and image data may be stored in the storage unit 116. In this case, an operation panel (see FIG. (Not shown) may have a function corresponding to the PC operation unit 58.

  Alternatively, the PC 50 may include a part of the function of the projector 100. That is, for example, the PC control unit 56 may have functions such as the target detection unit 230, the target identification unit 240, the change area specification unit 250, the illumination pattern storage unit 260, and the image data change unit 270 of the data processing unit 200. Alternatively, the function of the frame memories 210 and 220 of the data processing unit 200 may be assigned to the PC storage unit 57.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment.

DESCRIPTION OF SYMBOLS 10 ... Projector system, 50 ... Personal computer (PC), 51 ... PC communication part, 52 ... PC display part, 53 ... PC power supply part, 54 ... PC I / O bridge part, 55 ... PC hard disk, 56 ... PC control part , 57 ... PC storage section, 58 ... PC operation section, 59 ... PC operation reception section, 100 ... projector, 110 ... lamp, 111 ... optical section, 112 ... liquid crystal panel drive section, 113 ... lamp drive section, 114 ... power supply section , 115 ... I / O bridge section, 116 ... storage section, 117 ... control section, 118 ... imaging section, 119 ... operation reception section, 120 ... projection section, 160 ... communication section, 200 ... data processing section, 210 ... frame memory , 220 ... Frame memory, 230 ... Object detection unit, 240 ... Object identification unit, 250 ... Change area specifying unit, 260 ... Illumination pattern storage unit 270 ... image data changing unit, 280 ... image signal generation unit, 310 ... remote control, 320 ... external power source, 510 ... projected image, 512 ... enhancement pattern, 520 ... imaging range, 600 ... article 610 ... enhancement region

Claims (9)

A projection unit that projects a projection image according to input image data;
A sensor unit for sensing the projected image area;
A target identifying unit for identifying a target existing within the sensing range of the sensor unit;
An image data changing unit that changes the image data so that a region including at least a part of the identified object is illuminated;
A projector comprising:   The projector according to claim 1, wherein the image data changing unit changes the image data so that white light is projected onto the area.   The projector according to claim 1, wherein the image data changing unit changes the image data so that a portion other than the region in the projection image is darker than the region. .   4. The projector according to claim 1, wherein the image data changing unit changes the image data so that an emphasis pattern for emphasizing the region is included in the projection image. 5. The target identification unit identifies the position of the target following the movement of the target,
5. The projector according to claim 1, wherein the image data changing unit changes the position of the region in accordance with the movement of the target. An object identification unit for identifying the type of the object;
The projector according to claim 1, wherein the image data changing unit changes the image data based on a change condition corresponding to the type of the target.   The image data changing unit changes the image data so that the specified emphasized area is highlighted in response to an emphasized area specifying operation for specifying an emphasized area in the area. The projector according to claim 1, wherein the projector is characterized in that: A projector according to any one of claims 1 to 6;
An image data supply device for supplying image data of a projection image projected by the projector;
A projector system comprising: Project a projected image according to the input image data,
Sensing the projected image area;
Identify objects that are within the sensing range,
The image projection method, wherein the image data is changed so that an area including at least a part of the identified object is illuminated.

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