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Document Title |
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7623727 |
Image binarization apparatus, image binarization method, image pickup apparatus, image pickup method, and a computer product
In a digital camera, a CPU divides a multi-valued image into blocks and selects object blocks, which are to be the object of processing. A CCD outputs luminance values of the multi-valued image. A...
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7623141 |
Methods and systems for sub-pixel rendering with gamma adjustment
Sub-pixel rendering with gamma adjustment allows the luminance of the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel. For each of a subset of...
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7616829 |
Reducing undesirable block based image processing artifacts by DC image filtering
A post-processing manager provides reconstructed block based picture post-processing that is uncoupled from picture decoding by dividing a reconstructed image that was encoded using block based...
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7609880 |
Display apparatus and its control method
An image display apparatus includes a display device, and a signal processing circuit. In at least one case where an image is displayed by a first image signal which designates a first image having...
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7599572 |
System for manipulating noise in digital images
An apparatus for analyzing the broadband noise content of a digital image comprising the following: a means of automatically identifying regions of originally constant color in the image by...
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7586658 |
Method and apparatus for removing color noise in image signal
In a method and apparatus for processing an image signal, luminance signals are generated for an object pixel and local pixels. A luminance dispersion value is then generated for the object pixel...
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7529423 |
SIMD four-pixel average instruction for imaging and video applications
According to some embodiments, a Single-Instruction/Multiple-Data (SIMD) averaging instruction is used to process pixels of image data. The averaging instruction generates a set of four-pixel...
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7519211 |
Factor analysis in medical imaging
A method for processing image data includes estimating initial factor images from image data, transforming the estimated initial factor images by a transformation variable to obtain transformed...
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7515119 |
Method and apparatus for calculating an average picture level and plasma display using the same
The present invention discloses a method and an apparatus for calculating an optimal Average Picture Level (APL) in a plasma display of asymmetric cell configuration wherein each red, green and...
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7508430 |
Method for locally reducing row noise
A method for reducing the row noise from complementary metal oxide semiconductor (CMOS) image sensor by using a local offset correction is disclosed. The method operates on sensor with and without...
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7474846 |
Method and apparatus of determining the best focus position of a lens
A method and apparatus for accurately auto focusing a lens of an imaging device. An imaged scene is split into an array of zones. The minimum and maximum sharpness score for each zone is determined...
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7463787 |
Picture editing
A method of inserting an object into an image, the method comprising the steps of assessing the homogeneity of the image; identifying one or more areas of the image having similar homogeneity...
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7454057 |
Image processing apparatus and image processing program
An image processing apparatus inputs an image obtained by sensing an optical image by an image sensing system, compensates an omitted color component, and outputs a color image. A weight setting...
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7453503 |
Pixel interpolation method
A method for interpolating image data captured by an electronic imaging device having a Bayer arrangement, by pixel interpolation involving interpolating interpolation pixel X33 (a green pixel),...
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7450137 |
System and method for blending images
A method of blending a pair of images, each image comprising a plurality of pixels having an intensity. A blending edge is determined for each image, each blending edge comprising at least one...
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7423789 |
Contaminant particle identification and compensation with multichannel information during scanner calibration
Methods of identifying the location and dimensions of a contaminant particle on a calibration strip comprise imaging a calibration strip comprising a plurality of channels and a plurality of pixel...
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7423633 |
Apparatus for controlling the position of a screen pointer with low sensitivity to fixed pattern noise
An apparatus for controlling the position of a screen pointer includes an at least partially coherent light source for illuminating an imaging surface, thereby generating reflected images. The...
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7385637 |
Method for determining image sensor reference image
The present invention relates to a method for determining the reference image of an image sensor comprising a matrix of detector pixels. The method comprises the acquisition of a black image I N ...
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7369276 |
Multi-level halftoning providing improved texture uniformity
A method for multi-level halftoning an input digital image to form an output digital image which includes a multi-level error diffusion halftoning process incorporating periodic dither signals...
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7362882 |
Method and device for compensating for shadows in digital images
The invention relates to a method for generating a computed digital image of a scene, which can be illuminated with different luminous intensities at a first illumination angle by a first light...
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7339627 |
Method and system for automatic detection and display of aspect ratio
Certain embodiments of the invention may be found in a method and system for automatic aspect ratio detection and may comprise scanning lines in at least a selected portion of an image and locating...
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7296231 |
Video structuring by probabilistic merging of video segments
A method for structuring video by probabilistic merging of video segments includes the steps of obtaining a plurality of frames of unstructured video; generating video segments from the...
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7295349 |
Systems and methods for compensating for print defects
Diminished intensity defects occur in electrostatic printing between image regions having grey levels, i.e., different electrostatic potential and toner densities. Such defects occur when higher...
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7292728 |
Block quantization method for color halftoning
A method and apparatus for block quantization for color halftoning is described. In one embodiment, the method comprises dividing an input image and an output image into blocks, wherein each block...
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7268821 |
Upconversion with noise constrained diagonal enhancement
A method of interpolating a given output pixel value when upconverting interlaced video to progressive video includes the step of determining averages for vertically adjacent pixels, left...
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7242816 |
Group average filter algorithm for digital image processing
This present invention discloses a system and method for enhancing images of barcodes and other similar objects taken by the digital camera connected to or embedded in a mobile device. This filter...
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7224843 |
Apparatus for binary-coding image and method using the same
Provided are an apparatus and method for binary-coding images considering the brightness of a current pixel and a difference in brightness between pixels. The apparatus includes a detector for...
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7221381 |
Methods and systems for sub-pixel rendering with gamma adjustment
The gamma adjustment allows the luminance for the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel, while the chrominance can match the linear...
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7206002 |
Image processing apparatus and method that avoid generation of moire
An image processing apparatus includes a spatial filtering unit which applies spatial filtering to input image data to generate filtered image data such that the spatial filtering provides a...
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7203376 |
Imaging apparatus and imaging method
The present invention accurately reproduces an image pattern by referring to neighboring pixels upon determining the threshold value of a target pixel so that a delay in dot generation can be...
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7200264 |
White point estimation using color by convolution
The probability of a chromaticity being a white point of image scene illumination is estimated by convolving a chromaticity histogram with a function of log probability distribution of...
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7164430 |
Anti-aliasing line pixel coverage calculation using programmable shader
A system and method for rendering a non-zero thickness line on a pixel-limited output device such that aliasing of the line is reduced. The edges defining a line segment are expanded to insure that...
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7146042 |
Image processing apparatus and colorimetric system conversion method
The first image processing apparatus that converts a first image having a plurality of pixels and expressed in a first calorimetric system constituted of a plurality of color components with each...
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7139105 |
Image reading apparatus for optically reading an image
An image reading apparatus for optically reading an image comprises an LED for lighting a predetermined region including an object to be read, an image pickup element for receiving reflected light...
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7133568 |
Method and apparatus for analysis of variables
Various components of the present invention are collectively designated as Analysis of Variables Through Analog Representation (AVATAR). AVATAR offers an analog solution to those problems of the...
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7110455 |
Noise reduction pre-processor for digital video using previously generated motion vectors and adaptive spatial filtering
Noise is reduced in a video system by applying motion compensated temporal filtering using previously generated motion vectors and adaptive spatial filtering at scene change frames. Various types...
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7106902 |
Personal authentication system and method thereof
A personal authentication system of this invention has a card reader, in which a bar code reading device for reading a two-dimensional barcode containing personal data, a CMOS image sensor for...
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7095888 |
Apparatus for detecting average picture level
An apparatus for detecting average picture level (APL) which is able to prevent non-linear property of APL used to control image and power in a PDP system, to calculate linear APL value, and to...
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7092018 |
Image signal processor and deficient pixel detection method
A deficiency candidate detection circuit detects a deficient pixel candidate by comparing the image signal of a target pixel with the image signals of peripheral pixels, and address information of...
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RE39237 |
Interpolation method for binary image
An improved interpolation method in which a threshold value used for determining a pixel value of a pixel generated by interpolation according to a context which is a state value of adjacent...
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7085429 |
Binarization device
The present invention provides a binarization device that realizes reproduction with a low error rate, even where optimum recording conditions such as recording power have not been set in the...
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7027637 |
Adaptive threshold determination for ball grid array component modeling
A method for determining a number of balls in a projection space comprises determining a projection of a portion of a ball grid array, determining at least one local maximum of the projection space...
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6990252 |
System for manipulating noise in digital images
An apparatus for analyzing the broadband noise content of a digital image comprising the following: a means of automatically identifying regions of originally constant color in the image by...
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6961476 |
Autothresholding of noisy images
The present invention provides to image processing methods that include a method of selecting an optimal threshold value (t o ) for an image comprising the steps of: obtaining an image; selecting a...
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6956977 |
Methods for improving contrast based dynamic range management
A method for compressing an intensity dynamic range of an input image to a reduced intensity dynamic range of an image display device includes defining a plurality of units of the input image,...
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6944352 |
Circuitry for determining median of image portions
Hardware circuit for median calculation in an active pixel sensor.
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6941027 |
Method of and system for automatically determining a level of light falloff in an image
An image processing system includes an image collector and a light falloff correction system. The light falloff correction system comprises a polar transformer that converts an image into radial...
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6915023 |
Contour correction device
Filtration of an input signal implemented in the horizontal or vertical direction may disorder the gradation in oblique directions, so that oblique lines may become jagged. To deal with this...
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6898329 |
Image binarization apparatus, image binarization method, image pickup apparatus, image pickup method, and a computer product
In a digital camera, a CPU divides a multi-valued image into blocks and selects object blocks, which are to be the object of processing. A CCD outputs luminance values of the multi-valued image. A...
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6891549 |
System and method for edge enhancement of images
A method for generating an enhanced image includes the steps of: (a) receiving a matrix of pixels representative of an image; (b) generating a gradient image representative of a difference between...
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