TWI568268B - Adjusting a projection area of a projector - Google Patents

Description

Adjust the projection area of the projector

The invention relates to adjusting the projection area of the projector.

A projector receives a signal (eg, an image signal and/or video signal) and uses a lens system to project the corresponding image and/or video onto a projection screen (eg, a wall, a vinyl, etc.) Wait). These signals carry media material (eg, image data, video material, etc.) that is processed by the projector to display light using the lens system.

In one embodiment, a method implemented by at least one processor includes determining a target area for a projected display, the projected display presenting media from a stream of media data; identifying the medium a projection area, the medium is projected by the projected display screen; and the media data stream is adjusted such that a projection area of the medium matches the target area.

In another embodiment, a non-tangible computer readable storage medium comprising instructions, when executed, causing a machine to perform at least one of: determining a target area for a projected display screen, Presenting a medium from the media material through the projection display screen; recognizing a projection area of the presented medium projected by the display screen; and adjusting the media asset Feeding the projection area to match the target area.

In still another embodiment, an apparatus includes: a target detector that determines a target area for a display screen projected by the projector; a projection detector that recognizes a projection area of the display screen; and a medium A data converter that adjusts data received by the projector for the display screen such that the projected area matches the target area.

100‧‧‧Use environment

110‧‧‧Projector System

120‧‧‧Projection Analyzer

122‧‧‧Projector

124‧‧‧Detection device

126‧‧‧ structure

150‧‧‧ computing device

152‧‧‧ surface

154‧‧‧ Trackpad

156‧‧ ‧ bounds

200‧‧‧Projection area

202‧‧‧Boundary/Display

310‧‧‧Target Detector

320‧‧‧Projection Detector

330‧‧‧Media Data Converter

410‧‧‧ comparator

420‧‧‧ Conversion Calculator

430‧‧‧Data adjuster

502‧‧‧Media frame

504‧‧‧Projection area

506‧‧‧Target area

508‧‧‧Matched projection area

510‧‧‧Subsequent media frame

602‧‧‧Media frame

604‧‧‧Projection area

606‧‧‧Target area

608‧‧‧Matched projection area

610‧‧‧Subsequent media frame

700‧‧‧projection point

702‧‧‧Projection area

704‧‧‧Target area

1000‧‧‧ processor platform

1012‧‧‧ processor

1013‧‧‧ local memory

1014‧‧‧Main memory/volatile memory

1016‧‧‧Main memory/non-volatile memory

1018‧‧ ‧ busbar

1020‧‧‧Interface circuit

1022‧‧‧ Input device

1024‧‧‧output device

1026‧‧‧Network

1028‧‧‧Many storage devices

1032‧‧‧ coded instructions

1 is an illustration of an example use environment including an example projector system having an example projection analyzer constructed in accordance with the teachings of the present disclosure.

2 illustrates an example use environment in which the projector system of FIG. 1 is projecting a display screen.

3 is a block diagram of an example projection analyzer that can be used to implement the projection analyzer of FIG.

4 is a block diagram of an example media data converter that may be implemented by the example projection analyzer of FIGS. 1 and/or 3.

Figure 5 is a top view of an example display screen implemented by the example projection analyzer of Figures 1 and/or 3 adjusted to an example target area.

6 is another top view of the display screen adjusted to an example target area by another example implemented by the example projection analyzer of FIGS. 1 and/or 3.

7 is yet another top view of yet another example of a display screen adjustment performed by the example projection analyzer of FIGS. 1 and/or 3 to another example target area.

8 is a flow diagram representative of example mechanically readable instructions that may be executed to implement the example projection analyzer of FIGS. 1 and/or 3.

9 is a flow diagram representative of example mechanically readable instructions that may be executed to implement the example projection analyzer of FIGS. 1 and/or 3, and/or the example media data converter of FIG.

10 is a block diagram of an example processor platform capable of executing the instructions of FIGS. 8 and/or 9 for implementing the example projection analyzer of FIGS. 1 and/or 3, and/or the media data converter of FIG. .

Example methods, apparatus, systems, and articles of manufacture are disclosed herein to match a projection area of a projector to a target area of the projector. The examples disclosed herein relate to identifying a target area of a projector, identifying a projected area of the projector, and matching the projected area of the projector to the target area of the projector. In some examples disclosed herein, the automatic adjustment system can be performed on media materials and/or a projector system such that the media (eg, images, video, etc.) are displayed on a desired basis by a projector. In the location or area.

The projector is oriented toward a projection surface for rendering images and/or video for viewing and/or for access by a user. In many instances, the projector is used in conjunction with a screen and/or other surface on which a user attempts to display such images and/or video. Many times, depending on the optical and/or physical characteristics of the projector and/or environment, the projected display is not aligned with the desired target area. For example: when a projection angle of the projector (eg, an angle relative to a vertical line of the projection surface) causes the projected display to look like an irregular trapezoidal shape rather than an expected rectangular shape The projected display may present a "key-stoned". In other examples, the projector can be moved or adjusted while the media is being displayed, causing the projector to present the media on a desired surface and/or a surface. On the surface outside the desired area. Accordingly, the examples disclosed herein adjust media material and/or a projector such that a projection area of a projector matches a target area of the projector.

As used herein, a projection angle corresponds to an angle relative to a vertical line of a projection surface. As used herein, a projection surface corresponds to a surface (eg, a wall, a screen, a panel, a tabletop, etc.) that presents a projected display from a projector. As used herein, a projection area corresponds to an area of a projection surface that includes a projected display of a projector. As used herein, a target area is a surface area of a projection surface (eg, a two-dimensional rectangular area having a length and a width, a circular area having a center and a radius, etc.) Has a boundary within which a projected display picture is expected or/or desired to be partially or completely displayed (eg, a boundary defined by a length and width of the surface area, by a perimeter of the surface area) a boundary defined, etc.). As used herein, media data includes media (eg, images, video, etc.) and display parameters for presenting the media on a display device. As used herein, a media data stream includes a plurality of frames for presenting media. For example, if an image is rendered, a media stream of the image may include a plurality of frames of the image and/or repeatedly present the same frame. As another example, a media data stream can include a plurality of different frames for presenting different images of the video.

1 illustrates an example use environment 100 including an example projector system 110 having an example projection analyzer 120 constructed in accordance with the teachings of the present disclosure. In the illustrated example of FIG. 1, the projector system 110 includes the projection analyzer 120, a projector 122 (including a projection lens), and a detection device 124. The projection The machine system 110 can be supported by a structure 126 (eg, a housing, a base, etc.). The example usage environment 100 is an example computing device 150 (eg, a personal computer, a tablet, a smart phone, etc.) contained on a surface 152. The example computing device 150 can implement an example touch panel 154 having a limit to facilitate user input and/or control of the computing device 150. In the illustrated example of FIG. 1, the projector system 110 can project an image projection toward at least one substantially horizontal surface of the computing device 150 (eg, the touchpad 154 is placed with the touch) A desktop of the control panel 154, etc.). In another example (eg, movie theater, classroom environment, etc.), the example projector system 110 of FIG. 1 can project an image onto a substantially vertical surface (eg, a wall, a screen, etc.) or other Angled surface.

The example projector system 110 of FIG. 1 can receive data from the computing device 150 (eg, media data, such as image data, video data, and/or a stream of media data, such as a video stream, a video stream) Etc.) and project a display (eg, an image) corresponding to the received material. For example, in FIG. 1, the projector system 110 can project an image onto the touchpad 154 so that a user can view the image on the touchpad 154. Accordingly, in some examples, when a user touches a touch panel 154 that includes a projected image from the projector system 110, the user can interact with the image and/or control the computing device. 150.

In the illustrated example of FIG. 1, the projector 122 projects images (eg, images, video images, etc.) down to the touchpad 154. In the example disclosed herein, the touchpad 154 can be viewed as a target area for displaying images projected by the projector 122. Accordingly, in the illustrated example of FIG. 1, depending on the projector 122 (eg, it can be A projected angle of the structure 126 is controlled (e.g., 15 degrees with respect to the vertical line of the surface), and the projected image from the projector 122 is not necessarily aligned with the touchpad 154. In other words, one boundary of the projected image does not necessarily match the boundary 156 of the touchpad 154. For example, FIG. 2 illustrates an example projection area 200. The example projection area 200 can display an image (which can be rendered by the same dashed line as the projected area). In the illustrated example of FIG. 2, the projection area 200 is not properly aligned with the touchpad 154. Accordingly, in the example of FIG. 2, a displayed image in the projection area 200 cannot be accessed by a user via the touchpad 154. In the example disclosed herein, the projection analyzer 120 adjusts the settings of the projector system 110 and/or corresponds to a parameter of a displayed image such that a limit 202 of the displayed image 200 can match the touchpad. The boundary of 154 is 156.

Referring to both FIGS. 1 and 2, the detection device 124 of the projector system 110 can be used to capture and/or detect information corresponding to the usage environment 100 to identify a target area of the projector 122 and / or a projection area of the projector 122. The example detection device 124 can include a camera, a ranging sensor, and/or any other type of sensor. For example, the detecting device 124 can capture an image of a projected display screen. In some examples, the detection device 124 can measure a distance to a particular identification point (eg, a corner of a target area). Accordingly, the detection device 124 can provide information of the actual projection area and/or the target area to the projection analyzer 120 for analysis.

The example projection analyzer 120 uses information from the detection device 124 to determine if a projection area of the projector 122 is to be adjusted to match a target area of the projector 122. Moreover, as disclosed herein, the projection analyzer 120 can determine media data to be associated with the projector 122 and/or the image displayed by the projector 122 (eg, display parameters). The adjustment is made such that the projected area matches the target area. Although the projection analyzer 120 is illustrated as a component of the projector system 110 and/or coupled to the projector system 110 in the examples of FIGS. 1 and/or 2, the example projection analyzer 120 can be positioned in The other device (eg, the computing device 150) that the projector system 110 communicates with.

3 is a block diagram of an example projection analyzer 120 that can be used to implement the projection analyzer 120 of FIG. The projection analyzer 120 in the illustrated example of FIG. 3 includes a target detector 310, a projection detector 320, and a media data converter 330. The example projection analyzer 120 of FIG. 3 analyzes a projected display screen (eg, the display screen 202) and a determined target area (eg, the touchpad 154). In some instances, in accordance with the teachings of the disclosure herein. The projection analyzer 120 adjusts the projected display screen (eg, by adjusting display parameters of the media material, by adjusting an angle of the projector 122, by adjusting a focus of the projector 122 and/or Zooming, etc.) causes the projected area to match the target area. Additionally or alternatively, the projection analyzer 120 can instruct the projector system 110 to physically and/or optically adjust the projector 122.

The example target detector 310 of FIG. 1 receives information from the detection device 124 corresponding to a target area of the projector system 110. The instance information may include an image of a target area, location information of a target area (eg, distance/coordinate information determined by a distance sensor), and the like. The example target detector 310 determines a target area for the projected display. For example, the target detector 310 can identify the target area based on a feature of a target area (eg, a color of a boundary of the target area, a color of the target area, a shape of the target area, a distance to the target area, etc.). An instance feature of the target area can indicate a target point (eg, to calibrate an outer boundary) The coordinates of the coordinates) to determine the target area. In the examples disclosed herein, a target area can be a board (eg, a trackpad), a projector screen, a whiteboard, a frame surface, or any other calibrated area or surface. Accordingly, the target detector 310 of FIG. 3 can be based on a boundary 156 of a particular color or shape in a target area to identify the touchpad 156 of FIG. 1 and/or FIG. 2 as the projector system 110. target area. The example target detector 310 provides target area information (eg, location, distance, coordinates, etc.) to the media data converter 330.

The example projection detector 320 of FIG. 1 receives information from the detection device 124 corresponding to a projection area of the projector system 110. The example information may include an image of the projection area or other material corresponding to the location of the projection area (eg, from the sensor and based on a distance sensor and a projection angle of the projector 122 and other settings) ). The example projection detector 320 determines and/or identifies a projection area for the projected display image from the information. For example, the projection detector 210 can recognize a projected display image on a projection surface. The projection detector 320 can provide projection area information (eg, position, distance, coordinates, etc.) of the projection area to the media data converter 330.

In some examples, the target detector 310 and/or the projection detector 320 can be based on settings and/or inputs received from a user (eg, via the computing device 150, or the projector system 110) An interface) to determine and/or identify a target area and/or a projection area, respectively. For example, a user can indicate a particular feature of a target area that is to be recognized by the target detector 310 to determine the target area and/or the coordinates/dimensions of the target area. More specifically. A user system can indicate a particular shape and/or color and/or target area boundary of a target area to be recognized by the target detector 310. As another example, the projection detection is performed during a calibration indicated by the user and/or the computing device. The device 320 can determine a projection area by recognizing a calibration display (eg, a red screen, a particular image, etc.) presented by the projector system 110.

The media data converter 330 adjusts the media material received by the projector system 110 such that the projected area matches the target area. In other words, the media data converter 330 aligns the projection area with the target area such that the projector 122 projects a display image within a limit of the target area by adjusting the received media material. The media data converter 330 can adjust the media data based on a comparison of the target area information received from the target detector 310 and the projection area information received from the projection detector 320. The example media data converter 330 can then calculate an adjustment to be made to the display material (eg, one display setting of the display material) based on the comparison. For example, the media data converter 330 can determine the difference in coordinates between the target area and the projection area from the comparison. The example media data converter 330 transmits the converted media material to the projector 122 to project an image using a projection area that matches the target area. Accordingly, the media data converter 330 can adjust the data such that there is no need to adjust a physical and/or optical orientation of the projector 122 (eg, optical adjustment of the projector 122 is not required), The projection area matches the target area. An example embodiment of the media data converter 330 is further disclosed below in conjunction with FIG.

In some examples, the projection analyzer 120 can additionally or alternatively send a mechanism to the projector 122 and/or to control the projector 122. For example, the projection analyzer 120 can indicate at least one motor for controlling the projector 122 based on an analysis of the target area and the projection area to adjust an angle of the projector 122, the projector 122. A zoom, a focus of the projector 122, an aspect ratio of the projector 122, and the like. In these examples, the projection analyzer 120 can be based on being performed by the media data converter 330. A similar calculation indicates the at least one motor to match the projected area to the target area.

Although FIG. 3 illustrates one example manner for implementing the projection analyzer 120 of FIG. 1, at least one of the elements, processes, and/or devices illustrated in FIG. 3 may be combined, divided, rearranged in any other manner. Ignore, exclude, and/or implement. Furthermore, the target detector 310, the projection detector 320, the media data converter 330, and/or more generally, the projection analyzer 120 of FIG. 3 can be implemented by hardware, software, and firmware. And/or any combination of hardware, software and/or firmware. Thus, for example, the target detector 310, the projection detector 320, the media data converter 330, and/or more generally, the example projection analyzer 120 can be Performed by at least one of: an analog or digital circuit, a logic circuit, a programmable processor, an application specific integrated circuit (ASIC), a programmable logic element (PLD), and/or an on-site Programming Logic Element (FPLD). At least one of the target detector 310, the projection detector 320, and/or the media data converter 330 when reading a patented device or system request to cover a pure software and/or firmware implementation It is hereby expressly defined to include a tangible computer readable storage device or storage disk, such as a memory for storing the software and/or firmware, a digital versatile disc (DVD), a compact disc (CD) ), a Blu-ray disc, and so on. Still further, the example projection analyzer 120 of FIG. 3 can include at least one component, process, and/or device in addition to or in place of the components illustrated in FIG. 3, and/or can include more than Illustrate any or all of the components, processes, and devices.

4 is a block diagram of an example media data converter 330 that can be used to implement the media data converter 330 of FIG. The example media data converter 330 of FIG. 4 includes a comparator 410, a conversion calculator 420, and a data adjuster 430. The example media data converter 330 of FIG. 4 determines the appropriate adjustments to be made to the media material such that a projector system 110 A projection area matches a target area of the projector system 110.

In the illustrated example of FIG. 4, target data and/or projection data respectively containing target area information and/or projected area information is received by the comparator 410. The example comparator 410 analyzes the target data and/or projection data to determine if the data matches. If the target area and the projected area do not match, the comparator 410 is the target area information, the projected area information, and/or the difference between the target area and the projected area (eg, location information, coordinates) The information, distance information, and the like are forwarded to the conversion calculator 420.

The instance conversion calculator 420 calculates adjustments to be made to the media material (eg, for the display parameters). For example, the conversion calculator can calculate the necessary conversions for the media material such that the projection area matches the coordinates of the target area (eg, a bounded coordinate). More specifically, the conversion calculator 420 can determine how the media material is to be adjusted such that each corner of the display will be optically aligned to each corner of the target area without the need for the projector 122 performs physical and/or optical adjustments (eg, there is no need to adjust the projection angle, there is no need to adjust one lens of the projector 122, etc.). The conversion calculator 420 forwards the calculated adjustments to the data adjuster 430.

The data adjuster 430 of Figure 4 adjusts the media material such that a projected area of the rendered media matches a target area. Accordingly, the instance data adjuster 430 receives media data (eg, a stream of streaming media and/or video from a media device (eg, the computing device 150)) and adjusts the media material to create Converted media materials. For example, the data adjuster 430 can parse the media data, identify display data and/or display parameters of the media data, and rewrite and/or overwrite the display data and/or display parameters, such that the media The data includes converted display data and/or converted display parameters. Such converted display materials and / or The converted display parameters cause a projection area of the projector 122 to match a target area. The instance data adjuster 430 forwards the converted media data having the converted display data and/or the converted display parameters to the projector 122.

Although FIG. 4 illustrates one example manner for implementing the media data converter 330 of FIG. 3, at least one of the elements, processes, and/or devices illustrated in FIG. 4 may be combined, divided, rearranged in any other manner. Set, ignore, exclude, and/or implement. Moreover, the comparator 410, the conversion calculator 420, the data adjuster 430, and/or more generally, the example media data converter 330 of FIG. 4 can be implemented by hardware, software, firmware, and / or any combination of hardware, software and / or firmware to implement. Thus, for example, the comparator 410, the conversion calculator 420, the data adjuster 430, and/or more generally, the example media data converter 330 can be At least one of the implementations: an analog or digital circuit, a logic circuit, a programmable processor, an application specific integrated circuit (ASIC), a programmable logic device (PLD), and/or a field programmable logic device (FPLD). At least one of the comparator 410, the conversion calculator 420, and/or the data adjuster 430 is specifically defined when reading a patented device or system request to cover a pure software and/or firmware implementation. To include a tangible computer readable storage device or storage disc, such as a memory for storing the software and/or firmware, a digital versatile disc (DVD), a compact disc (CD), a blue light Discs and more. Still further, the example media data converter 330 of FIG. 4 can include at least one component, process, and/or device in addition to or in place of the components illustrated in FIG. 4, and/or can include more than Any or all of the illustrated components, processes, and devices.

5-7 illustrate example display screen adjustments that may be made by the projection analyzer 120 of FIGS. 1 and/or 3, and/or the media data converter 330 of FIG. 3 and/or FIG.

In the illustrated example of FIG. 5, a media frame 502 having a projection area 504 is analyzed for a rectangular target area 506. In FIG. 5, the projection analyzer 120 analyzes the trapezoidal projection area 504 of the media frame 502 to determine appropriate adjustments to the media material and/or projector 122 such that a subsequent media frame 510 A matched projection area 508 will match the target area 506. In the illustrated example of FIG. 6, a media frame 602 of a media stream having an off-center projection area 604 is compared to a target area 606 such that a subsequent media frame of the media stream is streamed. A matched projection area 608 of 610 will match the target area 606.

In FIGS. 5 and/or 6, the projection analyzer 120 can identify the target regions 506, 606 by corresponding boundaries. In FIG. 7, as disclosed herein, projection point 700 is recognized by the projection analyzer 120 and used to determine a target area 704. The projection analyzer 120 can then convert the data and/or settings of the projector 122 such that the projection area 702 for a stream of media data matches the determined target area 704.

A flowchart representative of example machine readable instructions for implementing projection analyzer 120 of FIG. 3 is shown in FIG. In this example, the machine readable instructions include a program/process executed by a processor, such as processor 1012 shown in example processor platform 1000 discussed below with respect to FIG. The program/process can be embodied by a software stored on a tangible computer readable storage medium, such as a CD player, a floppy disk drive, a hard disk drive, a digital versatile disc (DVD), and a A Blu-ray disc, or a memory associated with the processor 1012, but the entire program/process and/or portion thereof can alternatively be executed by a device other than the processor 1012, and/or with firmware or dedicated Hardware to reflect. Furthermore, although this example program is described with reference to the flowchart illustrated in FIG. Implement this example projection analyzer Many other methods of 120 are available instead. For example, the order of execution of such blocks may be changed, and/or some of the recited blocks may be changed, eliminated, or combined.

The example process 800 of FIG. 8 begins with an initialization of the projection analyzer 120 (eg, upon startup, upon an instruction from a user, in response to the projector system 110 and/or the computing device 150 being activated, etc.) Wait). At block 810, the example target detector 310 determines a target area for a projected display. For example, the target detector 310 can use images and/or information from a camera or other sensor to identify features of a target area (eg, a boundary, a target point, etc.). In this example, the target detector 310 can determine the target area based on the identified features.

At block 820 in the example of FIG. 8, the projection detector 320 determines a projection area for the projected display. For example, the projection detector 320 can recognize a projection area based on an image captured by the camera on the projected display. At block 830, the media data converter 330 adjusts the media material such that the projected region matches the target region. In some examples, the media data converter does not have to adjust the media material when the projection area matches the target area. The example media data converter 330 can adjust the media data by adjusting display parameters of the media data based on calculations for matching the coordinates of the projection area to the target area (eg, geometric calculation, algebraic calculation, etc.) . After block 330, the process 800 ends.

A flowchart of an example machine readable instruction for implementing the media data converter 330 of FIG. 3 is shown in FIG. In this example, the machine readable instructions include a program/process executed by a processor, such as processor 1012 shown in example processor platform 1000 discussed below with respect to FIG. The program/process can be a tangible computer The software stored on the readable storage medium is embodied, such as a CD player, a floppy disk drive, a hard disk drive, a digital versatile disc (DVD), a Blu-ray disc, or the processor 1012 A memory associated, but the entire program/process and/or portion thereof can alternatively be executed by a device other than the processor 1012, and/or embodied in firmware or dedicated hardware. Furthermore, although this example program is described with reference to the flowchart illustrated in FIG. Many other methods of implementing this example media data converter 330 can be used instead. For example, the order of execution of such blocks may be changed, and/or some of the recited blocks may be changed, eliminated, or combined.

This example process 830 begins with an initialization of the media data converter 330 (eg, in response to receiving target area information and/or projected area information, in response to activation of the projection analyzer 120, etc.). This example program/process 830 can be executed to implement block 830 of FIG. At block 910, the example comparator 410 compares a target area to a projected area of a media stream displayed by a projector (eg, the projector 122).

At block 920 of Figure 9, the comparator 410 determines if the target area matches the projected area of the projector. If the target area does match the projected area, the routine 830 of FIG. 9 ends because the comparator 410 determines that the media data converter 330 does not need to adjust the media material. At block 920, if the target area does not match the projected area, then control proceeds to block 930. At block 930, the conversion calculator 420 calculates an adjustment to the display parameters to match the projected area to the target area. For example, the conversion calculator 420 can determine algebraic calculations and/or geometric calculations such that the coordinates of the projection area match the coordinates of the target area. Accordingly, after such adjustments, the projected area of the media stream should match the target area. At block 940, the data adjuster 430 adjusts the display parameters based on such calculations (eg, by overwriting and/or overwriting display parameters of the media material in the media stream). At block 940 At the end, the process 830 ends.

As described above, the example processes of Figures 8 and/or 9 can be implemented using encoded instructions (e.g., computer and/or machine readable instructions) stored on a tangible computer readable storage medium, such as A hard disk drive, a flash memory, a unique memory (ROM), a compact disc (CD), a digital versatile disc (DVD), a cache memory, a random access memory ( RAM), and/or any other storage device in which the information is stored for any duration (eg, over an extended period of time, permanently, over a short period of time, temporarily buffered, and/or cached via this information) or Save the disc. As used herein, the term "tangible computer readable storage medium" is specifically defined to include any type of computer readable storage device and/or storage disc, and to exclude propagated signals and exclude transmission media. As used herein, the terms "tangible computer readable storage medium" and "tangible machine readable storage medium" are used interchangeably. Additionally or alternatively, the example processes of FIGS. 8 and/or 9 may be implemented using coded instructions (eg, computer and/or machine readable instructions) stored in a non-transitory computer and/or machine. Reading media, such as a hard disk drive, a flash memory, a unique memory, a compact disc, a digital versatile disc, a cache memory, a random access memory, and/or Store information for any duration (eg, extended time period, permanent, short-lived, temporarily buffered, and/or cached via this information) of any other storage device or storage disc. As used herein, the term "non-transitory computer readable medium" is specifically defined to include any type of computer readable storage device and/or storage disc, and to exclude the propagation of signals and the exclusion of transmission media. As used herein, the terms "tangible computer readable storage medium" and "tangible machine readable storage medium" are used interchangeably. As used in this article, when the term "at least" is in a claim When used as a transitional term in a preface, the term "include" is open-ended as an open term.

10 is a block diagram of an example processor platform 1000 capable of executing the instructions of FIGS. 8 and/or 9 for implementing the example projection analyzer 120 of FIG. The example processor platform 1000 can be used as any type of device or can be included in any type of device, such as a server, a personal computer, a mobile device (eg, a cellular phone, a smart phone, a tablet, such as iPad ^TM), an internet appliance, a digital video recorder, a Blu-ray player, a game console, a set-top box, a projector, or any other type of computing device.

The processor platform 1000 of the illustrated example of FIG. 10 includes a processor 1012. The processor 1012 of the illustrated example is hardware. For example, the processor 1012 can be implemented by at least one of: an integrated circuit, a logic circuit, a microprocessor, or a controller from any desired family or manufacturer.

The processor 1012 of the illustrated example includes a local memory 1013 (e.g., a cache memory). The processor 1012 of the illustrated example communicates via a bus 1018 with a primary memory containing a volatile memory 1014 and a non-volatile memory 1016. The volatile memory 1014 can be implemented by synchronous dynamic random access memory (SDRAM), dynamic random access memory (DRAM), RAMBUS dynamic random access memory (RDRAM), and/or any other type of random memory. Take the memory device to implement. The non-volatile memory 1016 can be implemented by flash memory and/or any other type of memory device. Access to the primary memory 1014, 1016 is controlled by a memory controller.

The processor platform 1000 of the illustrated example also includes an interface circuit 1020. The interface circuit 1020 can be implemented by any type of interface standard, such as an Ethernet interface, a universal serial bus (USB), and/or a PCI Express interface.

In the illustrated example, at least one input device 1022 is coupled to the interface circuit 1020. The input devices 1022 allow a user to enter data and commands into the processor 1012. The input devices can be implemented by, for example, an audio sensor, a microphone, a camera (static or video), a keyboard, a button, a mouse, a touch screen, a trackpad, A trackball, an indexer (isopoint) and/or a speech recognition system.

At least one output device 1024 is also coupled to the interface circuit 1020 of the illustrated example. The output devices 1024 can be implemented by, for example, a display device (eg, a display device (eg, one light emitting diode (LED), one organic light emitting diode (OLED), one liquid crystal display, one cathode) A tube display (CRT), a touch screen, a tactile output device, a projection display (eg, the projector 122), and/or a speaker). Thus, the interface circuit 1020 of the illustrated example typically includes a A graphics driver card, a graphics driver chip, or a graphics driver processor.

The interface circuit 1020 of the illustrated example also includes a communication device, such as a transmitter, a receiver, a transceiver, a modem, and/or a network interface card, via a network 1026 (eg, an Ethernet Network connections, a digital subscriber line (DSL), a telephone line, a coaxial cable, a cellular telephone system, etc., to facilitate data exchange with external machines (eg, any type of computing device).

The processor platform 1000 of the illustrated example also includes at least one mass storage device 1028 for storing software and/or data. Examples of such mass storage devices 1028 are It includes floppy disk drives, hard disk drives, CD players, Blu-ray disc players, disk array (RAID) systems, and DVD players.

The encoded instructions 1032 of FIGS. 8 and/or 9 may be stored in the mass storage device 1028, in the local memory 1013 of the volatile memory 1014, in the non-volatile memory 1016, and/or On a removable and tangible computer readable storage medium such as a CD or DVD.

It will be understood from the foregoing that the methods, apparatus, and/or articles disclosed above relate to a projection analyzer to automatically adjust a media stream and/or projector settings such that a projected display A projection area of the picture matches a target area of the projected display picture. Accordingly, the examples disclosed herein can address display environment and/or optical causes (eg, an angle of the projector, an angle of a display screen relative to the projector, etc.) on the projector display. The resulting defects do not require manual adjustment of the optical and/or physical characteristics of the projector.

Although certain example methods, apparatus, and articles of manufacture have been disclosed herein, the scope of the patent is not so limited. On the contrary, the patents cover all methods, devices and articles that fall within the scope of the appended claims.

120‧‧‧Projection Analyzer

122‧‧‧Projector

124‧‧‧Detection device

310‧‧‧Target Detector

320‧‧‧Projection Detector

330‧‧‧Media Data Converter

Claims (15)

A method for adjusting a projection area of a projector, the method comprising: determining a target area for a projected display screen, the projected display screen presenting media from a stream of media data; identifying a projection of the medium a region, wherein the media is projected by the projected display screen; and the media data stream is adjusted such that a projection area of the media matches the target area; wherein display parameters of the media data stream pass The adjusted display parameters are replaced by adjustments that cause the projection area to match the target area without requiring physical or optical adjustments to the projector. The method of claim 1, further comprising capturing an image of the target area to identify a target point of the target area, the target point being used to determine the target area. The method of claim 2, wherein the captured image of the target area comprises an image of the projected area. The method of claim 1, wherein the initial projection area of the medium is determined to be trapezoidal, and the target area and the matched projection area of the medium are determined to be rectangular. The method of claim 1, wherein the adjusting the media stream comprises comparing the display parameters of the media data stream based on a comparison between the target area and the projection area. A non-tangible computer readable storage medium comprising instructions for adjusting a projection area of a projector, wherein the instructions, when executed, cause the machine to perform at least one of the following: Determining a target area for the projected display screen, the projected display screen presenting media from the media material; identifying a projected area of the rendered medium projected by the display screen; and adjusting the media material such that The projection area matches the target area; wherein the display parameter of the media material is replaced with an adjusted display parameter, the adjusted display parameter matching the projection area to the target area without The projector is physically or optically adjusted. The non-tangible computer readable storage medium of claim 6, wherein the instructions, when executed, further cause the machine to: compare the projected area to the target area; and calculate Adjusting the display parameters of the media material to match the projection area to the target area. The non-tangible computer readable storage medium of claim 6, wherein the instructions, when executed, further cause the machine to: analyze an image received from a camera, the image including the target The area and the projection area. A non-tangible computer readable storage medium of claim 6, wherein the instructions, when executed, further cause the machine to: determine the target from at least two target points of the target area region. An apparatus for adjusting a projection area of a projector, the apparatus comprising: a target detector that determines a target area for a display screen projected by the projector; a projection detector that recognizes the display The projected area of the picture; a media data converter that adjusts data received by the projector for the display screen such that the projection area matches the target area; wherein the media data converter replaces the data with adjusted display parameters Display parameters that adjust the display area to match the target area without requiring physical or optical adjustments to the projector. The device of claim 10, wherein the information comprises at least one of an image or a video. The apparatus of claim 10, wherein the media data converter compares coordinates of the projection area with coordinates of the target area, and calculates adjustments made to the media material for use in the The coordinates of the projection area match the coordinates for the target area. The apparatus of claim 10, wherein the target detector determines the target area based on a boundary of the target area captured in the image, the boundary being identified by a feature of the target area. The device of claim 10, wherein the projection detector recognizes a projection area of the image from an image captured by the camera on the display screen. The device of claim 10, wherein the device is a projection analyzer of a projector system, the projector system comprising the projector and the detecting device.