Abstract: A search is enabled for an adjustment value with which a good blur correction effect is obtained by blur correction processing as an optical adjustment value of an image projection device, and blur correction performance is improved in a case where correction of a focus blur that occurs in a projection image is performed by signal processing.

Abstract: A projection system, a projection image adjusting method and a projector are provided. The projection system includes a projector and a control unit. The projector projects a projection image. The control unit controls movement of an image grid point of the projection image projected by the projector. When the projector receives a continuous adjustment signal output by the control unit, the projector determines a cumulative displacement amount proportional to a continuous signal quantity cumulative value according to the continuous signal quantity cumulative value of the continuous adjustment signal, and the image grid point is moved by the projector according to the cumulative displacement amount to correspondingly deform at least a part of the projection image, so as to provide a convenient projection image adjustment effect.

Abstract: A projector includes a first projection unit that projects a first image, a first imager that captures a second image projected by another projector, and a first calculation unit. The first calculation unit calculates, from captured image data of the second image captured by the first imager and interval information indicating an interval between the other projector and the projector, a first distance between a surface on which the second image is projected and the other projector, or a second distance between an area in which the second image is projected and the projector. The first projection unit controls projection of the first image based on the first distance or the second distance.

Abstract: In one embodiment, a method includes accessing a first distortion definition for a first color component of a collection of pixels and a second distortion definition for a second color component of the collection of pixels; casting, from a viewpoint in a 3D space, a first bundle of rays for the first color component in accordance with the first distortion definition; computing a first set of intersection locations between the cast first bundle of rays and an object in the 3D space; determining, based on the first and second distortion definitions, that a difference between distortions of the first and second color components satisfies a predetermined threshold; estimating, using the first set of intersection locations, a second set of intersection locations on the object for the second color component; and determining color values for the collection of pixels based on the first and second sets of intersection locations.

Abstract: A display driver includes an interface circuit configured to receive an input image of a virtual reality (VR) experience from at least one of an application processor (AP) and a graphics processing unit (GPU); a coordinate correction circuit configured to generate corrected coordinates by adjusting input coordinates of pixels included in the input image; and an image generation circuit configured to generate an output image by distorting the input image using the corrected coordinates.

Abstract: Provided are a data processing apparatus a method of obtaining the characteristic of each pixel and a method of data processing, and a program. A data processing apparatus 100 to correct X-ray intensity data measured by a pixel detector includes a characteristic storage unit 130 to store the characteristic of each pixel in a specific detector, a correction table generation unit 120 to apply a measurement condition input as that in measurement by a specific detector and a value expressing the characteristic of each pixel to an approximate formula expressing the count value of each pixel and to generate a correction table for the specific detector using the calculation result of the approximate formula, and a correction unit 160 to correct the X-ray intensity data measured by the specific detector using the generated correction table.

Abstract: Techniques to pre-warp an image based on an image warping map comprising a number of cells where each cell corresponds to a polynomial approximation for a number of corresponding pixels to be warped are described. An image warping map can be generated by partitioning a per pixel warping map into cells and approximating the pixel movements of each cell with a polynomial function.

Abstract: The present disclosure provides a spliced panel, a method for automatically allocating content to be displayed on the spliced panel, and a device for automatically allocating content to be displayed on the spliced panel. The method for automatically allocating content to be displayed on a spliced panel includes steps of S1: acquiring an image of the spliced panel; S2: analyzing the acquired image to obtain an arrangement manner of a plurality of display panels included in the spliced panel; S3: dividing an image to be displayed on the spliced panel into a plurality of sub-images according to the resultant arrangement manner of the plurality of display panels, such that the plurality of sub-images have a one-to-one correspondence to the plurality of display panels; and S4: inputting each of the plurality of sub-images to the corresponding display panel.

Abstract: Provided is a display device including an image display unit configured to display an image with a plurality of pixels arranged on a display surface, an eyepiece optical unit configured to project the display surface of the image display unit in a manner that a predetermined angle of view is obtained, and an image correction unit configured to correct a display image on the display surface at a position of each of representative pixels which are discretely located on the display surface, on the basis of distortion generated due to the eyepiece optical unit.

Abstract: A dual projection system can align displayed images using an alignment pattern. The alignment pattern can be used to modify part of an image content frame of an image data sequence. Two image data sequences can be spatially aligned based on the modification to part of the image content frame using the alignment pattern. An image content frame may be warped and displayed. The displayed warped image content frame can be captured. A set of transformation vectors can be determined based on the captured image content frame and alignment image data. Stored transformation data can be updated using the set of transformation vectors and the updated transformation data can be used to spatially align two image data sequences.

Abstract: An image generating apparatus includes a first generator configured to obtain a first image using a first camera with a first angle of view, a second generator configured to obtain a second image using a second camera with a second angle of view wider than the first angle of view, and a generator configured to generate an observation image using the first image and the second image. The observation image is observable as a double image in which the first image and the second image are superimposed on each other in an area that contains a center of the first image.

Abstract: An eyeglass-less 3D display device, and a device and method that compensate for a displayed margin of error are provided. The display device acquires an image of an integral image display (IID) image captured by a single camera, and compensates for a margin of error which arises due to a discrepancy between the designed position of a micro lens array located on one surface of a 2D panel and the actual position thereof, so as to provide a high-quality 3D image.

Abstract: A projection system, apparatus, and method in which a plurality of projectors project images to form an image as a whole on a projected area which is a screen area on which a content image is projected without a frame. Images for calibration are output by the plurality of projectors, the images for calibration including positioning markers that are indications for positioning to the corners of the projected area. Correction coefficients are calculated based on reference points of the projected area, and a projection target area is defined which corresponds to the screen area.

Abstract: Provided is a display device including an image display unit configured to display an image with a plurality of pixels arranged on a display surface, an eyepiece optical unit configured to project the display surface of the image display unit in a manner that a predetermined angle of view is obtained, and an image correction unit configured to correct a display image on the display surface at a position of each of representative pixels which are discretely located on the display surface, on the basis of distortion generated due to the eyepiece optical unit.

Abstract: A video playback system includes a first acquirer configured to acquire first specification information indicating video playback performance of an image display device; a second acquirer configured to acquire second specification information indicating video creating performance of an image supply device; a determiner configured to determine, based on the first specification information and the second specification information, either the image display device or the image supply device to be a device satisfying a playback condition; and a controller configured to, when the playback condition is changed to a new playback condition while the image display device is playing a video, cause the converter of the image display device to convert the video data into video data satisfying the new playback condition until the image display device receives video data where the new playback condition is reflected from the image supply device.

Abstract: An image display apparatus betters adjustment precision in the multi-projection in which two projection images are combined so that the images partially overlap each other. A display apparatus configuring an image projection system configured to project an image by combining on a screen a plurality of projection images so that the images partially overlap each other, includes a transformation unit configured to perform a geometrical transformation on a projection image, and a setting unit configured to set a parameter of the transformation by the transformation unit based on a relation between a position of an overlap region in a projection image obtained before the transformation by the transformation unit is performed, and a position of the overlap region in the projection image obtained after the transformation is performed, wherein an amount or value of the transformation is changed according to the position of a vertex of the overlap region.

Abstract: This charged-particle beam device changes conditions for combining an intensity ratio between upper and lower deflectors and rotation angles of the deflectors in multiple ways when obtaining images having different pixel sizes in the vertical and horizontal directions. Then, the charged-particle beam device determines an optimal intensity ratio between the upper and lower deflectors and rotation angles of the deflectors on the basis of variations in size value measured in the larger pixel size direction (Y-direction) of the image. As a result, it is possible to extend the field of view in the Y-direction while reducing deflection aberrations when measuring at high precision in the X-direction.

Abstract: A cobalt containing catalyst supported on a metal oxide suitable for performing a Fischer-Tropsch reaction. A pore volume of a metal oxide support, before loading of cobalt thereon, is within the range of 0.35 to 0.6 cc/g. The support has an average pore diameter before the cobalt loading and reduction such that the effective average pore diameter after cobalt loading and reduction is 14 nanometers or higher. A cobalt loading of 11 weight % or higher is also provided. An alpha value higher than 0.89 in a diesel to wax weight ratio below 1.07 is provided.

Abstract: The aligning a video image with an edge of a display screen, the video image being displayed by a scanning of lines of the display screen by at least one electron beam modulated by a modulation signal, including, for each scanned line of the screen, storing successive digital video data in a storage device; detecting the end of the scanning of the line preceding the scanned line; initiating a delay upon detection of the end of the scanning of the line preceding the scanned line; starting the reading, from the storage device, of the successive digital video data stored at the end of the delay; and providing the modulation signal based on the read successive digital video data.

Abstract: In one embodiment, a delay circuit is configured to delay pixel information from an image source, such as a frame buffer. The delay circuit may be configured to delay the pixel information by an amount of time that would move a pixel projected on a surface by a distance less than a dimension of the pixel. A light modulator may modulate a light beam onto a surface, such as a display screen, based on the delayed pixel information. This advantageously allows for sub-pixel electronic alignment.

Abstract: Methods and apparatus implementing a technique for assembling a device, such as a digital convergence monitor, at more than one site where data is supplied from a first site to a second site and then the data is used in assembly of the device at the second site. In one implementation, a method for assembling a device at more than one manufacturing site includes: at least partially assembling a device at a first manufacturing site; adjusting the device at the first manufacturing site, where the adjustment is recorded in data; sending the data from the first manufacturing site to a second manufacturing site; assembling the device at the second manufacturing site; storing the data in the device; and adjusting the device at the second manufacturing site, where the adjustment at the second manufacturing site is recorded in the data.

Abstract: An electromagnetic quadrupole circuit capable of always performing the optimal correction of the spot form is provided with: a current detecting section 20 for detecting the peak value and bottom value of current flowing along an electromagnetic quadrupole coil 8; a control section 50 for supplying a prescribed peak control value and a prescribed bottom control value; a first power source 16 for controlling the feedback of the amount of supply current based on the peak value detected by the current detecting section 20 and the peak control value supplied from the control section 50; and a second power source 17 for controlling the feedback of the amount of supply current based on the bottom value detected by the current detecting section 20 and the bottom control value supplied from the control section 50.

Abstract: Disclosed is a cathode ray tube and a intensity controlling method achieving a reduced amount of factors for correcting intensity prepared and capable of performing proper intensity control so that the joint portion of split picture planes is inconspicuous from a viewpoint of intensity. With respect to the direction of overlapping a plurality of split picture planes, only correction factors at representative signal levels are pre-stored as a basic factor table. Any of the factors at the other signal levels is obtained by performing an interpolating operation using the basic factors in the basic factor table. The value of the signal level of a video signal referred to when the correction factor in the overlapping direction is obtained is changed by using a shift factor associated with the pixel position in the direction orthogonal to the overlapping direction. The basic factor is thereby changed according to the pixel position in the orthogonal direction.

Abstract: A problem to be solved by the invention is to prevent a digital convergence correction device from lowering in precision of correction performed when a relation between screen raster and effective area of picture varies. A vertical display area detection signal that corresponds to a position in vertical direction of a picture display area on a screen is generated in accordance with a vertical deflecting current. An address counter for generating an address for reading out correction data is controlled in accordance with the signal.

Abstract: In a system according to the invention, fine image data 2 created and output by a personal computer 1 is input to an image processing/dividing section 4. The image processing/dividing section 4 determines, on the basis of parameters stored in a projector arrangement storage 5, which portion of the fine image data 2 is output to which projector, thereby performing a predetermined processing. Digital signals from the image processing/dividing section 4 are input to a plurality of D/A converters 6, respectively, where the signals are converted to analog signals. Images in the form of the analog signals are projected onto a screen 8 from projectors 7a-7d. Thus, the image projected on the screen 8 is constituted of accurately positioned images, and hence is a very fine image.

Abstract: An apparatus for correcting convergence and geometry errors in a display device re-maps the positioning of pixels in a video signal based on predetermined convergence and geometry errors in a display device. The apparatus includes counters for determining the intended horizontal and vertical positions of the pixels, a memory having stored therein the actual horizontal and vertical positions of pixels in the display device, and a frame buffer coupled to the counters and the memory for selectively delaying the pixels in the video signal, such that when outputted, the pixels form an image on the display device without the convergence and geometry errors.

Abstract: In a video display, correction data for a digital convergence arrangement are stored in a first non-volatile memory. During power turn on procedure, the correction data are read out of and stored in a volatile memory. During each deflection cycle, the data stored in the volatile memory are successively read out and applied to an auxiliary convergence winding. When a parity error is detected in the read out data, the data stored in a second non-volatile memory are automatically read out and transferred to the volatile memory and to the first non-volatile memory. The second non-volatile memory contains a duplicate of the correction data stored in the first non-volatile memory, during factory set up. The data in the second non-volatile memory are maintained parity error free. Thereby the parity error containing data stored in the first non-volatile memory are substituted with the data that are free of parity error, provided by the second, non-volatile memory.

Abstract: A convergence correction circuit including a coordinate unit which sets a predetermined range with first level values according to a screen length; an interval unit which divides the screen length; an interval decoder which calculates the value of the branch point of each interval determined by the interval unit; an interval gain unit which stores the gain of each interval; a subtracter which subtracts the output of the coordinate unit from the output of the interval decoder; a multiplier which multiplies the output of the subtracter by the output of the interval gain unit; a level shifter which sets an initial and last value of each interval upon horizontal scanning; an adder which adds the output of the multiplier and the output of the level shifter; a digital-analog converter which converts the output of the adder; and a correction coil which corrects the convergence according to the converted output.

Abstract: A circuit for correction of deflection errors in a television set, in which a correction current having alternate forward-sweep and flyback periods is supplied to a correction coil for an error parameter. An amplitude of the correction current is reduced during a time window which corresponds to the flyback period and in which no visible picture is displayed.

Abstract: In a system according to the invention, fine image data 2 created and output by a personal computer 1 is input to an image processing/dividing section 4. The image processing/dividing section 4 determines, on the basis of parameters stored in a projector arrangement storage 5, which portion of the fine image data 2 is output to which projector, thereby performing a predetermined processing. Digital signals from the image processing/dividing section 4 are input to a plurality of D/A converters 6, respectively, where the signals are converted to analog signals. Images in the form of the analog signals are projected onto a screen 8 from projectors 7a-7d. Thus, the image projected on the screen 8 is constituted of accurately positioned images, and hence is a very fine image.