Abstract: A video processing method for a video image consisting of a plurality of units includes: generating a plurality of information types of at least a first unit and a second unit neighbouring the first unit; and storing the plurality of information types of the first unit in a first continuous address space in a buffer and storing the plurality of information types of the second unit in a second continuous address space in the buffer, wherein the first continuous address space is adjacent to the second continuous address space. The plurality of information types of the first and second units are required for coding a specific unit, and the order of the stored plurality of information types of the first and second units is manipulated in each of the first and second continuous address spaces.

Abstract: Systems are provided for determining toner color having a processor that generates a fluorescent toner color image that when printed using a corresponding fluorescent toner will generate a diffuse fluorescent color light that reduces the extent to which noise induced variations in density in a noise evident portion of a toner print are observable. The processor further adjusts reflective toner color images used to form the toner print so that the reflective toner color images combine with the fluorescent color image to form a target color image.

Abstract: Methods for determining toner color images are provided in which fluorescent toner is used create light in a fused toner mass that reduces the appearance of noise in a noise evident portion of the fused toner mass.

Abstract: Systems for determining toner colors to be combined to form a target color at a location on a receiver. In one aspect, a system has a processor that determines a fluorescent toner color to be provided at the location based upon the density and hue angle of the target color and that determines one or more reflective toner colors to be provided with the determined fluorescent toner color at the location to form the target color in which the amount of the fluorescent toner color is decreased as the target color density increases.

Abstract: A system with for capturing and storing an image of a user's handwritten alphanumeric characters. The characters are stored in memory in association with a standard alphanumeric character set such as an ASCII character set. A text document can then be transcribed into the stored handwritten alphanumeric characters for resembling a handwriting of the user. The characters can be represented by mathematical functions such as Taylor Series or McLauren Series and can be digitally reproduced based on the stored functions.

Abstract: Correction data is produced for density errors in prints produced using a printer. While printing a test image, the periods of rotation of one or more rotatable imaging members arranged along a receiver feed path in the printer are measured using respective period sensors. The printed test image is measured along a selected measurement direction and a reproduction error signal representing deviation from aim density is determined. For each period sensor, the autocorrelation of the reproduction error signal for the corresponding period is determined. If the determined autocorrelation exceeds a selected threshold, the reproduction error signal is decomposed at the corresponding period to extract the variation from the measured component. The remaining error signal is separated by frequency terms. The variations from the data at measured periods and the remaining error signal are used to produce a correction signal.

Abstract: A method for encoding macroblock units of a video image, and a related system are disclosed. The method includes: receiving the video image; generating a plurality of information types of a first macroblock unit; and storing the information types of the first macroblock unit in a continuous address space in the buffer. The system includes: an encoder, for receiving the video image, and generating a plurality of information types of a first macroblock unit; and a buffer, coupled to the encoder, for storing the information types of the first macroblock unit in a continuous address space in the buffer.

Abstract: A method of performing block matching on a video image of progressive data includes: receiving the video image; storing the video image to a first storage; loading a current macroblock pair and a current search window of the video image to a second storage and utilizing the current search window to perform block matching for the current macroblock pair; and loading a next macroblock pair and a plurality of macroblocks corresponding to a non-overlapped area of a next search window to the second storage to perform block matching for the next macroblock pair.

Abstract: A computer input apparatus is disclosed which has improved safety control. Computer input devices with coherent light sources are popular. However, coherent light sources may cause serious and unrecoverable injuries to human eyes. Accordingly, there are several safety specifications defined by manufacturers and governments. Therefore, an improved device is disclosed that includes a calibration circuit and a fault detection circuit to control the operation current of a coherent light source to be within the safety specifications range, and to monitor for fault conditions. Furthermore, a computer input apparatus with coherent light source can be operated without the traditional optical lens.

Abstract: Systems are provided for determining toner color having a processor that generates a fluorescent toner color image that when printed using a corresponding fluorescent toner will generate a diffuse fluorescent color light that reduces the extent to which noise induced variations in density in a noise evident portion of a toner print are observable. The processor further adjusts reflective toner color images used to form the toner print so that the reflective toner color images combine with the fluorescent color image to form a target color image.

Abstract: Toner prints with efficiently enhanced gamut are provided. In one aspect a toner print comprises a receiver and a toner image fused to the receiver. The toner image has a first area with a first density at a first hue angle formed by a first amount of a fluorescent toner colorant at the first area; and, a second area with a second density at the first hue angle formed by a second amount of the fluorescent toner color that is lower than the first amount of fluorescent toner colorant. The second density is greater than the first density.

Abstract: Methods for determining toner color images are provided in which fluorescent toner is used create light in a fused toner mass that reduces the appearance of noise in a noise evident portion of the fused toner mass.

Abstract: Systems for determining toner colors to be combined to form a target color at a location on a receiver. In one aspect, a system has a processor that determines a fluorescent toner color to be provided at the location based upon the density and hue angle of the target color and that determines one or more reflective toner colors to be provided with the determined fluorescent toner color at the location to form the target color in which the amount of the fluorescent toner color is decreased as the target color density increases.

Abstract: Methods are provided for determining toner colors to be combined to form a target color at a location on a receiver. In one aspect, a method includes determining a fluorescent toner color to be provided at the location based upon the density and hue angle of the target color; determining one or more reflective toner colors to be provided with the determined fluorescent toner color at the location to form the target color and the amount of the fluorescent toner color is decreased as the target color density increases.

Abstract: Apparatus for depositing a texture on a receiver includes a data source that provides multilevel input tint data values. A lossy compressor produces compressed multilevel tint data values from the multilevel input tint data values. A decompressor produces multilevel decompressed tint data values from the compressed multilevel tint data values. A texture memory receives those values from the decompressor and provides corresponding multilevel texture pixel data values. A print engine deposits at each of a plurality of pixel sites on the receiver an amount of texture-forming material corresponding to the respective multilevel texture pixel data value. A loader loads into the texture memory a texture set including multilevel texture pixel data values for each of a plurality of textures, and each texture in the texture set corresponds to a respective selected range of multilevel decompressed tint data value.

Abstract: A composite color toner image can be enhanced by applying a separate fluorescing toner image over it to provide an enhanced color toner image having a “pinkish” fluorescing effect. This separate fluorescing toner image is obtained using visible fluorescing dry magenta toner particles. Each of these toner particles consists essentially of a polymeric binder phase and a visible fluorescing colorant that emits at one or more peak wavelengths of at least 510 nm and up to and including 590 nm and that is dispersed within the polymeric binder phase.

Abstract: Methods are provided for automatic cross-track density correction for a print engine having a print head that forms lines of picture elements on a receiver based upon lines of pixel values. In one aspect of the method, the print engine is caused to print a first print having a plurality of different areas along a cross-track direction with target densities and data is received from which measured densities for different ones of the plurality of different areas can be determined. A line density adjustment function is based upon a functional relationship between a cross track position of different ones of the areas and a difference between the measured density and the target density at the different ones of the areas. A production print is subsequently printed according to lines of pixel values for the production print modulated by the line density adjustment function.

Abstract: A digital camera and an image capturing method for photographing at least one object in the digital camera. An image is sensed, and an eye-gazing detection process is accordingly preformed on the image to detect an eye-gazing direction of at least one pair of eyes of the at least one object. It is determined whether the eye-gazing direction meets a gazing criterion. If the eye-gazing direction meets the gazing criterion, an application of the digital camera is triggered.

Abstract: A computer input apparatus is disclosed which has improved safety control. Computer input devices with coherent light sources are popular. However, coherent light sources may cause serious and unrecoverable injuries to human eyes. Accordingly, there are several safety specifications defined by manufacturers and governments. Therefore, an improved device is disclosed that includes a calibration circuit and a fault detection circuit to control the operation current of a coherent light source to be within the safety specifications range, and to monitor for fault conditions. Furthermore, a computer input apparatus with coherent light source can be operated without the traditional optical lens.