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7612909 |
Image processing apparatus and method, and image-capturing apparatus based on the difference between a signal detected by a sensor and the real world
An apparatus for detecting a mixed area in frames. An object extracting unit extracts a foreground object from an input image and generates an area-specified object formed of the foreground object...
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7607783 |
Imaging apparatus, image processing apparatus, image processing method of imaging apparatus and computer program
A document camera has an image processing apparatus, which acquires the contour of an image of an original by means of a Roberts filter. The image processing apparatus detects straight lines as...
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7520620 |
Projector and projector control method
For a projector, a CPU references an exposure calculation object scope setting table stored in an exposure calculation object scope setting table storing unit, and sets the exposure calculation...
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7461939 |
Automatic zoom for screen fitting
A method for projecting an image with a projection system includes zooming a projected image in accordance with a resolution of the image, when a resolution of the image is less than a resolution...
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7446822 |
High-resolution image projection
A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be...
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7370976 |
Projection type image display device
The device has flexure correcting means for operating to rotate a first eccentric cam provided at a central part of a first side of a reflecting mirror, thereby moving up and down the central part...
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7357517 |
Projector, method of controlling the projector, program for controlling the projector, and recording medium storing the program
A projector includes an image capture device that captures an image in a capture region larger than a projection region of a projection image; an image determining unit that compares and determines...
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7347564 |
Keystone correction using a part of edges of a screen
The projector comprises an image forming panel that forms an effective panel image for modulating the light into an image light in an image forming area of a panel surface, and an image capturing...
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7342572 |
System and method for transforming an ordinary computer monitor into a touch screen
A system and method for turning a regular computer monitor screen into a touch screen using an ordinary camera. It includes an image-screen mapping procedure to correct for the non-flatness of the...
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7301691 |
System and method for generating images
The disclosed embodiments relate to a system and method for generating images. There is provided a method comprising directing light through a projecting lens ( 28 ) at a first pixel position ( 60...
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7280165 |
Apparatus and method for controlling convergence of projection television
An apparatus and method for controlling a convergence of a projection television includes a pattern generator which generates R, G, and B video patterns used for controlling the convergence and...
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7252387 |
System and method for mechanically adjusting projector pose with six degrees of freedom for image alignment
A method adjusts a pose of a projector with respect to a display surface. A homography H D,P is determined between a display surface and a projector. The homography H D,P is decomposed into...
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7237903 |
Video projector and method for shifting projected picture
A scaler unit writes an input video signal into a frame memory and scales the number of pixels of the input video signal to any number of pixels when the input video signal is read out from the...
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7204596 |
Projector with tilt angle measuring device
A projector having a tilt angle measurement device is provided with: a projection device for projecting an image onto a projection surface; a tilt angle measurement device for calculating the tilt...
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7201482 |
Projection type display device
A projection type display device includes a distortion corrector for correcting a projected image for distortions when the image is projected with a projection optical axis tilted with respect to a...
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7175287 |
Wide angle projection lens
A projection display device is provided. The projection display device may include an image generation device configured to generate an image and a wide angle lens system having an optical axis...
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7175285 |
Projection system that adjusts for keystoning
A system for adjusting keystoning in a projector may include sensing using an imaging device at least two boundaries defining a projection screen and determining a transformation to adjust the...
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7167216 |
Projection system with adjustable aspect ratio optics
Adjustable aspect ratio optics is described. In one implementation, a second mirror receives light reflected from a first mirror within the adjustable aspect ratio optics. In accordance with the...
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7156524 |
Projection type video display and method of adjusting the same at factory shipping
A microcomputer performs image drawing processing of a projection video for adjustment by an OSD (On-Screen Display) circuit when it detects the press of an adjustment command key. The projection...
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7150537 |
Projection television device and screen
A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide...
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7131732 |
Projector apparatus, inclination angle obtaining method, and projection image correction method
In a projector to which the present invention is applied, a distance sensor measures distances between the projector and a plurality of points on a screen. An angle calculation unit obtains a...
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7116379 |
Projector and method of adjusting projection size
The technique of the present invention adjustably sets an image area on a center of an image display area of an image display device for displaying an image expressed by an input image signal and a...
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7108379 |
Projector for adjusting a projected image size and luminance depending on various environments
A projector includes a housing, an image module for projecting onto a screen toward a front side, a detecting module for detecting distances from the projector to the front side and from the...
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7086743 |
Rear projection type projector and its method of use
A rear projection type projector is provided. An optic axis of modulated light to be projected to a screen projection surface is slanted to a normal N-N of the screen projection surface and...
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7061552 |
Method and apparatus to perform automatic digital convergence
A method and apparatus for performing autoconvergence is described. An image having a first aspect ratio and a plurality of sides is received. The image is displayed on a display having a second...
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7061551 |
Convergence control apparatus and method for compensating for angular error of reference pattern
Convergence control apparatus of a projection television has: a pattern generator for generating a reference pattern; optical sensors for sensing the change of luminance of the reference pattern...
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7053966 |
Adjusting convergence apparatus and method
Disclosed is a projection image display apparatus, specified in a convergence adjusting apparatus employing a spline interpolation scheme. In the projection image display apparatus, the convergence...
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7034900 |
Color display device and method utilizing convergence correction
In a color display device, apparatus and method are provided to produce a convergence correction signal based on digital convergence correction values. The data rate by which the data is supplied...
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7029124 |
Distortion control for a seamless tile display system
A modular and scalable seamless tiled display apparatus includes multiple display devices, a screen, and multiple lens assemblies. Each display device is subdivided into multiple sections, and each...
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6975779 |
Method for modifying the image size of video images
The invention relates to a method for changing the image size of video images, in which a decimation of video image signals (V) by an integral decimation factor (MHD, MVD) is carried out, and the...
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6906754 |
Electronic display with compensation for shaking
A display device includes a display screen, and horizontal and vertical display signals. The horizontal and vertical display signals are to render an image on the display screen. A first and second...
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6834965 |
Self-configurable ad-hoc projector cluster
A system projects multiple output images on a display surface. The system includes multiple projectors. Each projector includes a processing unit. The processing unit includes a microprocessor, a...
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6817721 |
System and method for correcting projector non-uniformity
A system and method corrects the luminance non-uniformity of an image generating by a projector by generating a correction look-up table (LUT) for the projector. The projector receives input data...
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6784947 |
Image display apparatus and method of correcting image on image display apparatus against inclination by terrestrial magnetism
An image display apparatus which employs a cathode ray tube displays, when an image displayed on a screen of the cathode ray tube is to be corrected against an inclination caused by the terrestrial...
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6753829 |
Projection image display apparatus
To change image quality in accordance with the image to be displayed, a color filter plate 3 is driven to sequentially split the white light incident on an A portion into red, blue, and green...
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6750921 |
Projection video display with photo transistor sensors
A method for determining raster positioning in a video projection display apparatus comprises the steps of detecting illumination by a first edge of a measurement image moving in a first direction....
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6714331 |
Scanned imaging apparatus with switched feeds
A display apparatus includes a scanning assembly that scans about two or more axes, typically in a raster pattern. A plurality of light sources emit light from spaced apart locations toward the...
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6707509 |
Method for adjusting convergence in a projection television receiver
A method for adjusting convergence in a projection television receiver, in which a marker contained in a projected image is adjusted by a manipulated variable to illuminate a photosensor arranged...
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6686973 |
Method and apparatus for automatically correcting projection display of projector
A method and apparatus for automatically correcting projection display of a projector. The disposition parameters including disposition distance (or horizontal inclination angle) and vertical...
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6683586 |
Apparatus and method of adjusting horizontal position for a video display appliance
An apparatus for adjusting a horizontal position of a video display appliance in which a display image is put in the center of a monitor screen. The apparatus includes a comparative circuit, a...
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6671004 |
Method and apparatus for convergence correction in a television set
A method for convergence correction in a projection television display having a monochromatic tube for each of the three primary colors red, green and blue, whose images can be projected on a...
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6618076 |
Method and apparatus for calibrating projector-camera system
The present invention enables a user to automatically calibrate a projector-camera system to recover the mapping from a given point in the source (pre-projection) image and its corresponding point...
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6603532 |
Illuminance measurement apparatus, exposure apparatus, and exposure method
An illuminance measurement apparatus of the present invention is comprised of a chassis ( 20 ) having a detection surface ( 22 ) formed with a light receiving aperture ( 21 ) and a light receiving...
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6597410 |
System for the automatic adaptation of projector images and a method for the implementation thereof
A computerized projector system which automatically adapts projected images emanating from projectors to fit the size and conditions of screens on which the images are displayed. Moreover,...
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6590620 |
CRT display image horizontal distortion correction device
In a CRT display apparatus, a horizontal distortion correction apparatus is provided for correcting horizontal distortion of an image by applying a residual phase to control the phase of a...
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6536907 |
Aberration compensation in image projection displays
Optical projection systems for the display of electronic images often suffer from degraded image quality due to color field registration errors caused by lateral chromatic aberration. Although most...
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6499849 |
Rear projector that can adjust image size and operating method
A projector has a housing, a screen installed in the front of the housing for displaying an image, a projecting modole installed in the housing, a control module, and at least One detector. The...
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6493044 |
Digital keystone modulation circuit
A digital keystone modulation circuit for transforming a digital image to a digital projection image is disclosed. The digital image and the digital projection image have n horizontal image signals...
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6486926 |
Adaptable raster distortion correction system for multiple horizontal scanning frequencies
A memory and a switchable digital filter supply different numbers of digital distortion correction values. The supplied distortion correction values are converted to an analog distortion correction...
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6462488 |
Shadowmaskless tracking cathode ray tube control circuit having inverse beam current compensation
A shadowmaskless tracking cathode ray tube control circuit is described, comprising a control loop, which is coupled to a deflection unit of a shadowmaskless tracking cathode ray tube. The...
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