Abstract: The present invention relates to a technique for detecting that all components that make up a completed portion of a form are synchronized. A method is provided for detecting that for a print job, all of the components that make up a completed portion of each form are printed in synchronicity or in the case of an error in synchronicity, an error condition is asserted. The print job comprises at least one form, and each form may contain more than one image, each image may contains one or more image planes and the images on each form of a document may vary. Each image contains a composite image group (CIG) mark comprising the set of image plane coordination (IPC) marks associated with each individual image plane. An IPC mark is printed by each print engine such that it is possible via inspection of these marks to determine if the complete set of image planes that make up a specific image are present.

Abstract: A method and apparatus for enhancing compressed images is described. In one embodiment, the method comprises characterizing quantization noise in reconstructed low pass coefficients generated in response to application of an inverse wavelet transform and removing the quantization noise from the reconstructed low pass coefficients constructed during decoding.

Abstract: A method in image processing for detection of a change in the scene in an area. The method comprises the steps of recording a digital image of the area using a sensor and transforming the recorded image by an operator. The operator is based on a previous modeling of changes in the lighting in the area and on a modeling of how the sensor depicts the area in grayscale values in the recorded image. The method further comprises the step of comparing the transformed image with a reference image of the area in order to detect a difference that indicates a change in the scene.

Abstract: An image feature analysis section performs image feature analysis of an input image to generate an image feature quantity independent from image coordinates. An image content densification section information densifies the image feature quantity to generate a densified image feature quantity. An image generation section generates, based on the densified image feature quantity, an image in which the information content of the input image is densified.

Abstract: The image processing apparatus is provided with a plural memory controllers, each of which controls a RAM. The memory controllers are connected to an SIMD type arithmetic processing section. A control register is connected to the memory controllers. The control register controls transfer of image data between the RAMs and the SIMD type arithmetic processing section.

Abstract: A method of decomposition of projection data is provided, wherein such projection data includes input projection data acquired using at least two x-ray spectra for a scanned object, including low energy projection data (PL) and high energy projection data (PH); the method comprises solving the projections PL and PH to determine a photoelectric line integral (Ap) component of attenuation and a Compton line integral (Ac) component of attenuation of the scanned object using a multi-step fitting procedure and constructing a Compton image Ic and a photoelectric image Ip from the Compton line integral and photoelectric line integral.

Abstract: Provided are a method, system and program for fractionally shifting input data subject to a first transform process without first applying an inverse transformation by using a second transform process. The second transform process applies a transformed matrix to the transformed data. At least one transformed matrix is provided in non-volatile storage, wherein each transformed matrix is generated by applying the first transform process to a fractional shift matrix operator. The input data that was transformed using the first transform process is received and the at least one transformed matrix is applied to the transformed input data to generate transformed data that represents fractionally shifted transformed output data.

Abstract: A system and method for combining image data are disclosed. Sensor data sets (210, 212) are received from sensors (112). An image metric (214) with slots (217) is generated by repeating the following for each sensor data set (210, 212) until a final slot (217) of the image metric (214) is reached: generating display data from a subset of a sensor data set (210) for a slot (217) of the image metric, and generating display data from a subset of a next sensor data set (212) for a next slot (217) of the image metric (214). An image generated from the image metric (214) is displayed.

Abstract: A redeye reduction system creates a first matrix of candidate pixels by comparing a color-and-brightness parameter of image pixels to a first threshold. Cohesive groups of candidate pixels are collected into components, and the component having the pixel with the highest color-and-brightness parameter is identified as first redeye region. The average color-and-brightness parameter and the size of the remaining components are compared to a range dependent on the values of the first redeye region, and the components having values within the range are defined as candidate components. The candidate component with the densest pixel population is defined as a second redeye pupil region. The defined redeye pupils are dilated and compared with a second threshold lower than the first threshold to generate a new list of candidate pixels. The new candidate pixels are colored dark gray and their adjacent pixels are colored a lighter gray.

Abstract: There are provided: a lattice noise estimating section (5) for estimating a lattice noise occurrence rate in an output image; and a pre-blurring process section (6) for performing a pre-blurring process with strength that has been determined in accordance with the lattice noise occurrence rate estimated by the lattice noise estimating section (5).

Abstract: A fingerprint identification system comprising: an IC card having a tamper-resistance; and a reader/writer having a tamper-resistance for reading/writing information from/into the IC card. In the reader/writer, a fingerprint image, as read by a fingerprint input unit, is preprocessed in a preprocessing unit, and extracted intermediate information is transmitted to the IC card. This IC card compares the intermediate information with the fingerprint information, and makes authentication information usable for an electronic authentication upon matching. By this electronic authentication with applications, the fingerprint identification system, which has a high level of safety and can reduce the cost is provided.

Abstract: Known N-dimensional filters 100 and methods for N-dimensionally filtering apply noise reduction to an original image pixel. However, carrying out only noise reduction to a pixel of an image is often not enough when a good picture quality is required. Thus, additionally, sharpness enhancement (peaking) is carried out. However, noise reduction and peaking have contrasting spectral behaviors which lead to non-optimal results when both operations, noise reduction and peaking, are implemented in series. By appropriately defining coefficients ?(p, n) or ?(p, n) of the transmission function, the transmission function is capable of applying both noise reduction and sharpness enhancement to the input signal of the N-dimensional filter 100.

Abstract: A method of producing a tone scale function which operates on a source digital image to improve tonal characteristics, includes receiving a source digital image including a plurality of pixels; and producing a tone scale function having a highlight tone scale segment and a shadow tone scale segment defined relative to a reference point on the tone scale function, and that is adapted to operate on the source digital image, wherein the highlight tone scale segment is defined by a different mathematical function than the shadow tone scale segment; at least one of the highlight tone scale or shadow tone scale segments have at least one inflection point; the highlight tone scale segment is defined for points that are equal to or greater than the reference point; and the shadow tone scale segment is defined for points that are equal to or less than the reference point.

Abstract: A circuit for transforming a raster image at least partially stored within an image buffer includes memory storing micro-code; a multiplier; an accumulator; and a sequential logic circuit. The multiplier is in communication with the image buffer and the memory and is operable to form a weighted pixel value as a product of a given pixel value from the buffer and an associated weighting factor within the micro-code. The sequential logic circuit is in communication with the memory and the buffer. It steps through the pixels and the memory to present pixels in the buffer and associated weighting factors from the micro-code, to the multiplier. The accumulator sums weighted pixel values calculated by the multiplier. Conveniently, the memory may be loaded with coefficients of linear equations to scale a raster image.

Abstract: In a the method for determining distortions in an image that can be generated with an imaging system from a subject arranged in an imaging volume of the imaging system, a first region of the imaging volume is presented undistorted in the image and a second region of the imaging volume is presented distorted in the image. Using the imaging system, an image of at least three markings that have a known spatial position relative to one another is produced. A first and a second of the three markings are arranged in the first region and a third of the three markings is arranged in the second region. The position of the imaged markings in the image is determined. An ideal position of the third marking in the image is determined from its known spatial arrangement with respect to the first and second markings. A positional difference of the imaged third marking from its ideal position is identified. The positional difference represents a criterion for the distortion.

Abstract: An apparatus in one example comprises a computer component that receives one or more images of one or more packaging materials from one or more imaging components. The computer component employs an analysis of the one or more images to make a determination of a package integrity of the one or more packaging materials.

Abstract: A parallel, non-iterative, memory efficient method of determining image skew. A document skew angle is determined from a fast scan second order moment data set and a slow scan second order moment data set. A slow scan second order moment data set can be generated by receiving a current scanline of image data, updating columns sums for a set of rotation angles using scanlines within a buffer comprising a band having a predetermined number B of scanlines, and updating the buffer with the current scanline.

Abstract: The process comprises the following steps: calculating, for an image, a depth map corresponding to the depth, in the three-dimensional space, of image pixels; calculating, for an image, a resolution map corresponding to the three-dimensional resolution of the image pixels, based on the depth map; matching a current image pixel with a pixel of another image of the sequence, pixels relating to a common point in the three-dimensional scene, by projecting the current image pixel onto the other image; selecting a current image pixel according to its resolution and to that of the pixels of the sequence matched with this said pixel; constructing the three-dimensional model from the selected pixels. One application concerns the generation of images for browsing.

Abstract: In order to reduce noise appropriately according to scaling factor and a degree of motion of an image and to suppress degradation in image quality resulting from the noise reduction to a negligible level, a noise reduction control section outputs a noise detection instruction, a noise detection threshold instruction and a filtering mode instruction based on a scale factor output from a scale factor calculating section and a motion detection result output from a motion detecting section. A mosquito noise reducing section and a blocking artifact reducing section in a noise reducing section adaptively conducts an appropriate noise reducing process using noise detection sensitivity and the number of filter taps and a filter coefficient of a smoothing filter according to these instructions.

Abstract: A method of enhancing the tonal and chrominance characteristics of a digital image, includes receiving a source digital image including wherein the source digital image is in a luminance-chrominance representation having a luminance digital image channel and at least two chrominance digital image channels; producing a tone scale function that can be used to enhance the tonal characteristics of the source digital image; classifying the tone scale function into one of two or more categories based on the effect the tone scale function will have on the numerical range of pixel values of a processed digital image wherein the classification categories include expansive and compressive; using the tone scale function and the luminance digital image channel to produce an enhanced luminance digital image channel; and amplifying the chrominance digital image channels to produce modified chrominance digital channels when the tone scale function has been classified as expansive.