|
Match
|
Document |
Document Title |
|
|
7623732 |
Method and apparatus for digital image filtering with discrete filter kernels using graphics hardware
The invention provides, in some aspects, methods and apparatus for signal and/or image processing which perform convolution-based filtering utilizing a graphics processing unit (GPU, also called...
|
|
|
7617080 |
Image enhancement by spatial linear deconvolution
Data from a target system ( 616 ) that exhibits a non-linear relationship between system properties and measurement data, is processed by applying a linear filter (F) to improve resolution and...
|
|
|
7602989 |
Realtime 2D deconvolution system and method
A real time 2D deconvolution system and method for processing a time sequence, or video sequence, of microscopy images. A system is provided that includes a first algorithm for processing a first...
|
|
|
7599569 |
Method and apparatus for bilateral high pass filter
A target pixel and surrounding pixels corresponding to the target pixel are obtained from a digitally represented image. A bilateral high pass filtering kernel is determined based at least in part...
|
|
|
7596282 |
System and method for efficient feature estimation for medical images
A method for estimating feature values from a digitized image includes calculating a gradient of an image, defining a filter weighting function, convolving the gradient with the filter weighting...
|
|
|
7595911 |
Methods and systems for descreening a digital image
Embodiments of the present invention comprise methods and systems for descreening a digital image.
|
|
|
7593598 |
System and method for efficient filter design through weighted difference of Gaussian filters
A method of designing filters for filtering digitized images includes constructing a set of difference-of-Gaussian (DoG) filters that partition a frequency space, forming a linear combination of...
|
|
|
7554556 |
Color image processing device and color image processing method
A color image processing device includes a pre-correction unit, a computation processing unit and a post-correction unit. The pre-correction unit includes a pre-correction circuit which carries out...
|
|
|
7489828 |
Methods, system, and program product for the detection and correction of spherical aberration
The present invention provides methods, a system, and a program product for the rapid detection and correction of spherical aberration in microscopy systems. More specifically, the present...
|
|
|
7471320 |
Electronic pan tilt zoom video camera with adaptive edge sharpening filter
An apparatus and a method is provided for enhancing a digital image comprised of pixels by adaptively sharpening the pixels and clipping the numerical values of the sharpened edge pixels so as to...
|
|
|
7471813 |
Systems and methods for correction of scatter in images
A method for correction of scatter in an image includes receiving data of an image having a scatter characteristic, performing a deconvolution procedure on the data using Hermite expansion...
|
|
|
7453470 |
Method and apparatus for anti-aliasing scan conversion
Methods and apparatuses for anti-aliasing scan conversion. In one aspect of the invention, an exemplary method to scan convert an image on a data processing system includes: sampling the image in a...
|
|
|
7444034 |
Systems and methods for image enhancement in multiple dimensions
A multi-dimensional data enhancement system can be embedded within a video cable for providing enhanced video images from a video signal source to a display. The multi-dimensional data enhancement...
|
|
|
7430315 |
Face recognition system
The face detection system and method attempts classification of a test image before performing all of the kernel evaluations. Many subimages are not faces and should be relatively easy to identify...
|
|
|
7424173 |
Method, apparatus and program for restoring phase information
A phase information restoring method improves estimation accuracy of phase by using radiation with energy of high transmittance when constructing a radiation image of a living organism such as a...
|
|
|
7412110 |
Using forward and backward kernels to filter images
Methods and apparatus, including computer program products, for filtering an image including a plurality of pixels. A forward kernel centered at a first pixel in the image is received. The forward...
|
|
|
7388987 |
Computing dissimilarity measures
Methods, machines, and machine-readable media for computing dissimilarity measures are described. In one aspect, a first set of pixel neighborhood values (PNVs) is computed from respective sets of...
|
|
|
7379613 |
Optimized image processing for wavefront coded imaging systems
An image processing method includes the steps of wavefront coding a wavefront that forms an optical image, converting the optical image to a data stream, and processing the data stream with a...
|
|
|
7379105 |
Multi-standard video image capture device using a single CMOS image sensor
A video image capture device includes an image sensor including an two-dimensional array of pixel elements overlaid with a pattern of color filters and having a vertical resolution different from...
|
|
|
7379615 |
Method for space-time filtering of noise in radiography
To reduce the fluoroscopic noise in an image I acquired at a date t, the pixels of this image are paired with the pixels of an image I′ acquired at a date t−1. For a pixel with coordinates...
|
|
|
7359576 |
Using difference kernels for image filtering
Methods and apparatus, including computer program products, for filtering an image. A filter kernel is received to determine one or more filtered values for each pixel in a sequence of pixels,...
|
|
|
7346224 |
System and method for classifying pixels in images
A method classifies pixels in an image by first partitioning the image into blocks. A variance of an intensity is determined for each pixel, and for each block the pixel with the maximum variance...
|
|
|
7305089 |
Picture taking apparatus and method of controlling same
The camera includes a sensor for sensing the photographer's iris image and registering the image in advance. The iris image is recorded in the image of a subject by a digital MCU at a timing...
|
|
|
7274831 |
High quality anti-aliasing
An antialiasing method and apparatus suitable for antialiasing a variety of image types, including fonts, large images, and very small images. The antialiasing technique may represent the edge of a...
|
|
|
7218795 |
Assisted scratch removal
Line defects are removed from an image by providing image data in digital form, analyzing segments of the image data as groups of pixels, detecting line defects in the image by application of a...
|
|
|
7123259 |
Reflection space image based rendering
The present invention provides a method, system, and computer program product for reflection space image based rendering of an object at an interactive frame rate. A set of source radiance...
|
|
|
7092582 |
Systems and methods for multi-dimensional enhancement using fictional border data
A multi-dimensional image data enhancement system is configured to reduce the effect of blanking areas on the large kernel processing of pixel data. Thus, when pixels comprising blanking data are...
|
|
|
7072528 |
Cubic convolution interpolating apparatus and method thereof
A cubic convolution interpolating apparatus and method for performing interpolation by optimizing a parameter which determines the interpolation coefficients according to the local property of an...
|
|
|
6993208 |
Image processing apparatus and its processing method
Upon scaling input image data and outputting the scaled image data, an address arithmetic processor determines phase information, which indicates the distances between the position of the pixel of...
|
|
|
6970597 |
Method of defining coefficients for use in interpolating pixel values
A method for generating coefficients for a set of convolution kernels for use in interpolating pixel values in an image sensor is described. The coefficients are computed by applying a constraint...
|
|
|
6959385 |
Image processor and image processing method
To provide a device capable of determining uniquely the direction of rotation applied to an image and extracting digital watermark information correctly even in the case where a registration signal...
|
|
|
6956625 |
Image processing apparatus and method for realizing panorama/waterglass functions
An image processing apparatus and method for realizing panorama/waterglass functions, which are capable of reducing the size of a memory and simplifying memory control, are provided. In order to...
|
|
|
6947176 |
Method for correcting lightness of image
A method is provided for correcting lightness of an image using a multiscale retinex. Lightness of a subject pixel of an original image is corrected using a convolution operation of a surround...
|
|
|
6937274 |
Dynamic range compression of output channel data of an image sensor
A method (S 100 ) for dynamic range compression of output channel data from an image sensor ( 2 ) comprising an array of sensor cells. The method (S 100 ) comprises selecting a window (S 130 ) in...
|
|
|
6928182 |
Imaging
A de-convolution process is applied to an MR, CT or other image ( 25 ) of a scanned-object ( 23 ) to derive the point-spread function ( 22 ′) at an object-edge and to pin-point from the mid-point...
|
|
|
6912323 |
Method and apparatus for fast signal convolution using separated-spline kernel
A fast convolution method applicable to convolving a signal (indicative of an n-dimensional pattern, where n is greater than or equal to two) with a smooth kernel that can be approximated by a...
|
|
|
6912307 |
Method for automatic color and intensity contrast adjustment of still and video images
A method for automatic partial correction of the color contrast and intensity of color images. The images are processed in a manner similar to that by which the visual system processes signals...
|
|
|
6912310 |
Video object segmentation using active contour model with directional information
Object segmentation and tracking are improved by including directional information to guide the placement of an active contour (i.e., the elastic curve or ‘snake’) in estimating the object...
|
|
|
6842297 |
Wavefront coding optics
Improved Wavefront Coding Optics, which apply a phase profile to the wavefront of light from an object to be imaged, retain their insensitivity to focus related aberration, while increasing the...
|
|
|
6816622 |
Generating resized images using ripple free image filtering
An optimal filter kernel, formed by convolving a box filter with a filter of fixed integer width and unity area, is used to perform image resizing and reconstruction. The optimal filter has forced...
|
|
|
6798860 |
Methods and apparatus for deconvolving imaging data
A method for deconvolving imaging data obtained in slices using an imaging system. The method includes steps of selecting a target slice sensitivity profile and determining a deconvolution kernel...
|
|
|
6751335 |
Method for generating a dispersed message for data embedding
A method of forming a dispersed message for embedding in an image, includes the steps of: providing a random phase carrier; defining a set of ordered bit locations; assigning a polarity to each bit...
|
|
|
6735346 |
HD fourier transforms for irregularly sampled data
A collected data is divided into M single valued subsets, where M is greater than zero. A two-dimensional subset image is formed from each single valued subset. Then, a fast Fourier transform is...
|
|
|
6701028 |
Method and apparatus for fast signal convolution using spline kernel
A fast convolution method applicable to convolve a signal with a smooth kernel that can be approximated by a spline kernel, and a system configured to perform such method using software or signal...
|
|
|
6700672 |
Anti-aliasing with line samples
A method, using a filter function, generates an anti-aliased discrete image from a continuous image including an edge. The method defines a line sample. A progressive convolution is derived from...
|
|
|
6687417 |
Modified kernel for image interpolation
A method of providing a representation of image data is disclosed. The method accesses a plurality of discrete sample values of the image data and calculates kernel values for each of the discrete...
|
|
|
6678390 |
Method and computer program for embedding and extracting an embedded message from a digital image
A method and computer program for extracting an embedded message from a digital image, the embedded message being formed by convolution with a carrier, employs a message template indicating the...
|
|
|
6643412 |
Method and apparatus for high speed convolution
The method for high speed convolution includes the steps of: determining a convolution mask by dividing a theoretical mask into a predetermined number of areas as many as a multiple of sampling...
|
|
|
6631215 |
Method and apparatus for implementing integrated cavity effect correction in scanners
A method and apparatus are provided for determining a weighted average measured reflectance parameter R m for pixels in an image for use in integrated cavity effect correction of the image. For...
|
|
|
6611767 |
Scanned image alignment systems and methods
Systems and methods for aligning scanned images are provided. A pattern is included in the scanned image so that when the image is convolved with a filter, a recognizable pattern is generated in...
|