192 results about "Horizontal resolution" patented technology

The invention provides high-speed and high-quality printing when the vertical and horizontal resolutions of print data to be printed differ from the vertical and horizontal resolutions which a printer can process. A table is provided, in which the relationship of position in each printing pass of each of a plurality of pins aligned in the vertical direction of a printing head to a plurality of raster lines in a predetermined range to be printed is examined, whereby the pins aligned in the vertical line to be actuated in each printing pass are determined based on the relationship of a position between each of the pins and each of the raster lines. The table serves as a raster-line/pin-relationship table. A printer driver receives print data from a print-data forming unit, consults the raster-line/pin-relationship table, and actuates the pins for each printing pass according to the raster-line/pin-relationship table.

A video coding or decoding method using inter-image prediction to encode input video data in which each chrominance component has 1/Mth of the horizontal resolution of the luminance component and 1/Nth of the vertical resolution of the luminance component, where M and N are integers equal to 1 or more, comprises: storing one or more images preceding a current image; interpolating a higher resolution version of prediction units of the stored images so that the luminance component of an interpolated prediction unit has a horizontal resolution P times that of the corresponding portion of the stored image and a vertical resolution Q times that of the corresponding portion of the stored image, where P and Q are integers greater than 1; detecting inter-image motion between a current image and the one or more interpolated stored images so as to generate motion vectors between a prediction unit of the current image and areas of the one or more preceding images; and generating a motion compensated prediction of the prediction unit of the current image with respect to an area of an interpolated stored image pointed to by a respective motion vector; in which the interpolating step comprises: applying a ×R horizontal and ×S vertical interpolation filter to the chrominance components of a stored image to generate an interpolated chrominance prediction unit, where R is equal to (U×M×P) and S is equal to (V×N×Q), U and V being integers equal to 1 or more; and subsampling the interpolated chrominance prediction unit, such that its horizontal resolution is divided by a factor of U and its vertical resolution is divided by a factor of V, thereby resulting in a block of MP×NQ samples.

A graphics system comprises a texture memory, a rendering engine, a sample buffer and a filtering engine. The rendering engine renders received primitives based on a render pixel array whose vertical and horizontal resolutions are dynamically programmable. The rendering engine determines render pixels that geometrically intersect a primitive. For each intersecting render pixel, a texture access may be required (if texture processing is turned on) to determine texture values. The texture values may be used to compute sample values at sample positions interior to the sample render pixel and the primitive. A controlling agent may decrease the vertical and horizontal resolutions of the render pixel array to control frame render time. The filtering engine may programmably generate virtual pixel centers covering the render pixel array. Any change in the render pixel resolutions may require an accommodating change in the virtual pixel array parameters.

A magnetic resonance imaging apparatus and method having a magnet assembly, which provides substantially flat surfaces of constant magnetic field outside the assembly and a set of magnetic field gradients. One-, two-, and three-dimensional images are rendered. The static magnetic field is virtually uniform within horizontal degrees of freedom and decreases monotonically in a direction away from the surface. An RF probe, for example, a coil, located adjacent the surface, produces a field substantially perpendicular to the static magnetic field. A magnetic field gradient is set to horizontally scan a given level within the sensitive volume. Received magnetic resonance signals are detected by the coil for a depth corresponding to the excitation frequency. As the tuning and excitation frequency is switched to lower values, signals are generated for layers progressively farther from the surface. The RF probe is automatically tuned. Depth profiles are rendered by concatenating the signals collected at various frequencies. Horizontal resolution is attained by the use of controlled magnetic field gradients.

A video signal processor includes an input port adapted to receive an input video signal. The input video signal is characterized by a first horizontal resolution and a first vertical resolution. The video signal processor also includes a prescaler adapted to perform prescaling of the video signal, wherein prescaling converts the input video signal at the first horizontal resolution and the first vertical resolution to a prescaled video signal characterized by a second horizontal resolution and a second vertical resolution. The video signal processor additionally includes a frame buffer coupled to the prescaler. The video signal processor further includes a horizontal scaler adapted to convert the horizontal scale of the prescaled video signal from the second horizontal resolution to a third horizontal resolution and a vertical scaler adapted to convert the vertical scale of the prescaled video signal from the second vertical resolution to a third vertical resolution.

The invention relates to a method for simulating a wind field by coupling WRF (weather research and forecasting) and OpenFOAM modes. The method comprises the following steps of outputting and processing WRF data in a meso-scale weather mode; manufacturing a small-scale open-source OpenFOAM refined network in a CFD mode for calculating hydromechanics; transferring data between the WRF and OpenFOAM modes; driving the OpenFOAM mode to calculate. The method has the advantages that by adopting the technical scheme, the coupling calculation of the WRF and OpenFOAM modes is realized, the data with several-mile horizontal resolution in the WRF mode is downscaled into the data with 30m resolution in the OpenFOAM mode, the wind field simulating effect in the WRF mode under the complicated terrain is improved, the business levels of wind resource evaluation and wind power prediction are improved, and the predicting accuracy is improved.

The present invention discloses a spaceborne radar and ground-based radar reflectivity factor data three dimensional fusion method. According to the present invention, by using the precipitation radar (PR) data of high vertical resolution as the output of a neural network and the ground radar (GR) data of high horizontal resolution and low vertical resolution as the input, a non-linear relationship of a PR and a GR is established, thereby fusing into the three dimensional reflectivity factor data having the high vertical and horizontal resolution. Based on a neural network algorithm, the PR and GR reflectivity factor data three dimensional fusion is carried out to obtain a fine three dimensional structure of an intensity echo which is very important for the later applications, such as the fine detection and tracking of a middle and small-scale convective weather process, the subsequent quantitative rainfall measurement, the radar data assimilation in the middle-scale forecast, etc.

The present invention is intended to achieve an improvement in the horizontal resolution of an active matrix semiconductor display device. In accordance with the present invention, by supplying a modulated clock signal obtained by frequency modulating a reference clock signal at a constant period to a driving circuit of an active matrix semiconductor display device or to a driving circuit of a passive matrix semiconductor display device, signal information (the presence or absence of an edge, the extent of nearness) relative to the vicinity of the sampling of video signals (image signals) sampled on the basis of this modulated clock signal can be written to the corresponding pixels of the semiconductor display device as shading information. The driving method of the present invention makes use of a phenomenon which apparently makes the resolution of an image display higher owing to the shading information (visual Mach phenomenon and Craik-O'Brien phenomenon).

A data reader comprises a camera that has an adjustable resolution and acquisition speed. The camera is maintained at a low level resolution and fast speed and is periodically actuated to acquire images. When an acquired image indicates that an object is present, the resolution of the camera is increased, and a higher resolution image is acquired and decoded. The imaging system of the camera is therefore used to trigger data acquisitions, thereby eliminating the need for external triggers and sensor devices.

The invention provides a phase-controlled earthquake inversion method in geophysical exploration, and belongs to the field of petroleum geophysical prospection. The method comprises the following steps: obtaining a three-dimensional surge impedance data volume step from inversion of original earthquake data; conducting phase control on the earthquake inversion step. The method utilizes earthquake data and a logging surge impedance curve to conduct inversion to obtain surge impedance data of a reservoir stratum under the control of result of an earthquake phase and a geologic phase, can maintain horizontal resolution while improving vertical resolution, and can finely depict space spreading and distributing form of the reservoir stratum.

The invention discloses a high-refresh-rate digital oscilloscope with a function of displaying three-dimensional waveform information. A signal to be measured is sent to a triggering unit and an A/D (Analog/Digital) conversion unit through an analog signal conditioning unit; a sampled data processing unit is used for controlling the A/D conversion unit to sample and store the sampled data to a sampled data storage unit; a three-dimensional waveform processing unit is used for reading data sequences SAMPLE in sequence from the sampled data storage unit and mapping and counting the data sequences SAMPLE into a data dot matrix representing three-dimensional information, wherein the column number and the row number of the data dot matrix are respectively equal to a horizontal resolution X and a vertical resolution Y of a waveform display area of a display unit; a waveform data attenuation unit is used for reading the data dot matrix from the three-dimensional waveform processing unit, merging the data dot matrix read from the three-dimensional waveform processing unit with a data dot matrix of the waveform data attenuation unit and then transmitting a merging result to a CPU (Central Processing Unit) control unit; the waveform data attenuation unit is used for attenuating the merging result once and then storing the merging result to a data point; and the CPU control unit is used for converting received data into image data represented by color or brightness and then transmitting the image data to the display unit for displaying.

The invention discloses a universal three-dimensional picture synthesis method based on lenticular grating LCD (liquid crystal display) free three-dimensional display device, comprising the following steps: 1) measuring the actual lines LPI value and actual elevation angle Alpha value of the lenticular grating; 2) carrying out sampling on N viewport pictures according to the required viewport number N and resolution factor H*V of synthesizing three-dimensional pictures, the vertical resolution factor of each viewport image being sampled to be V/v, and the horizontal resolution factor being sampled to be H/h, wherein, N is more than or equal to 2, v*h is equal to N, and v is an integral value mostly close to N; 3) filling the RGB (red, green, blue) components of N sampled viewport pictures in the RGB components of the three-dimensional pictures according to the actual lines LPI value, the actual elevation angle Alpha value and the dot pitch DOT of an LCD display so as to obtain the required three-dimensional pictures. The universal three-dimensional picture synthesis method is applied to lenticular grating with random lines LPI value and random elevation angle Alpha value, and can quickly and accurately synthesize three-dimensional pictures with random viewport numbers and random resolution factor.

A 2D and 3D image display apparatus including: a display panel forming an image by spatially modulating an input image signal; a polarization conversion device converting a polarization direction of a beam incident into the polarization conversion device according to a voltage applied in synchronization with the image signal; and a switching barrier unit including first polarization units having a first polarization direction and second polarization units having a second polarization direction in an alternate manner, and transmitting the beam passing the polarization conversion device through at least one of the first polarization unit and the second polarization unit. Therefore, a 3D image can be displayed without degrading a horizontal resolution thereof by using a combination of polarization devices with low fabrication costs, which may utilize a time-sequential display method.

A three-dimensional imaging system based on a stereo hologram is disclosed. Images composed of sub-images having the same vertical-horizontal resolutions which are generated at plural image projection modules having a two-dimensional arrangement structure are projected to a prism array plate or a transmission-type diffusion plate, and are converted into light points, i.e., image points through a microlens array unit. A diffusion plate used as an image display screen is mounted to a position at which images diffused from the light points intersect with images diffused from the adjacent light points.

The invention relates to a sub-wavelength super-resolution digital holographic imaging system based on microspheres. The sub-wavelength super-resolution digital holographic imaging system based on microspheres comprises an automatic hologram collecting and controlling module, a digital hologram recording module, a digital hologram preprocessing module, a hologram numerical value analyzing and processing module and a phase contrast image displaying module, wherein the exposure time and the image collecting speed are controlled by utilizing Labview software through the automatic hologram collecting and controlling module; the digital hologram recording module comprises a laser device, a to-be-tested sample and an optical device for forming a hologram, and the to-be-tested sample performs microsphere spreading at the early stage; acetone or water can be used for diluting microspheres; a small amount of diluted microsphere solution is dropped onto the to-be-tested sample by a drip tube, and stands until acetone or water is volatilized completely so as to complete the single-layer spreading of the microspheres. According to the invention, micro fine structures are amplified twice by adopting the microspheres and a microobjective, so that the micro nano structure can be subjected three-dimensional phase contrast imaging; the horizontal resolution can break through the diffraction limit, and the system is simple in structure, and is low in cost.

The invention discloses a method for converting a virtual 3D (Three-Dimensional) scene into a 3D view. The method can be used for converting any virtual 3D scene in OpenGL into a three-dimensional view by the following steps of: rotating and translating a world coordinate system, wherein an observation point is taken as the original point of a new coordinate system, and a connecting line between the central position of viewpoints and the observation point serves as an axis-Z positive axis; determining a rotating angle and a translating distance according to the central position of the viewpoints and the coordinate of the observation point; determining the shear mapping angle of each viewpoint according to the central position of the viewpoints and the coordinate of each viewpoint to generate a corresponding shear mapping matrix, performing right-handed multiplication on a model view matrix of each viewpoint, and projecting to obtain corresponding image data of each viewpoint; and adjusting the coordinate of the 3D scene, the horizontal resolution of the view, the size of a view frustum and the positions of the viewpoints according to a constraint condition of a parallax error and 3D effect experience to improve the 3D effect of the 3D view. Shear transformation and parameter adjustment are inserted in an OpenGL processing flow, so that the problems of unremarkable 3D effect and the presence of vertical parallax are solved, and an optimal 3D effect is achieved.

The invention discloses a mode detection circuit and a method thereof, for detecting an image signal, the image signal includes a horizontal resolution and the vertical resolution. The mode detection circuit includes a measuring unit, a calculation unit, and a decision unit. The measuring unit receives a clock signal and is used to count the clock signal to output a first counting value and the second counting value. The calculation unit is used to perform the calculation with the first counting value and the second counting value and thereby outputting a calculating value, wherein the calculating value outputted by the calculation unit is corresponding to the ratio of the first counting value to the second counting value. The decision unit is used to determine the horizontal resolution or the vertical resolution according to the calculating value.

An autostereoscopic display system wherein an interdigitated stereogram is generated and displayed on an electronic display. The display includes a lenticular screen over the surface of the display which allows the user to observe the stereogram on the display and obtain a true stereoscopic effect. In accord with the invention, the resolution of master images is minimized and then the pixels from the master images are mapped to form the interdigitated stereogram. The optimum minimization of the resolution is obtained when the ratio of horizontal resolution to vertical resolution for the master images approximates the screen aspect ratio of the display. In this way, less computation is involved in remapping the pixels to form an interdigitated stereogram.

A liquid crystal on silicon panel and a driving method thereof are provided. The LCOS panel and the driving method thereof of the present invention will complete driving the M×K sub-pixels after scanning I times, wherein M is the horizontal resolution and I<K. Hence, it can reduce the product cost of the drivers without sacrificing the frame rate. In addition, because of the discrete design of the even column driver and odd column driver, the width for the layout of the column driver can be double.

The invention discloses an image adjusting apparatus and method. The image adjusting apparatus comprises a first resolution detecting module, a second resolution detecting module, an automatic zoom factor generating module, an automatic zoom module, and an image rotating module, wherein the first resolution detecting module detects the first signal of the input image input by an image input apparatus to generate the second horizontal resolution and the second vertical resolution; the automatic zoom factor generating module, according to the first horizontal resolution, the first vertical resolution, the second horizontal resolution, and the second vertical resolution, generates automatic zoom factors; and the automatic zoom module adjusts the size of the input image according to the automatic zoom factors.