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7630558 |
Direction-sensitive line detection operator for image data
A method of detecting lines in an image comprises using one or more masks for detecting lines in one or more directions out of horizontal, vertical, left diagonal and right diagonal, and further...
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7623726 |
Method and apparatus for using a virtual camera to dynamically refocus a digital image
One embodiment of the present invention provides a system that dynamically refocuses an image to simulate a focus plane and a depth-of-field of a virtual camera. During operation, the system...
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7616349 |
Font sharpening for image output device
A method of rendering text in an image forming device comprises providing a user interface to receive a user-defined font sharpening threshold; receiving the user-defined font sharpening threshold...
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7613354 |
Image processing device and method, recording medium, and program
A user interface unit sets a parameter based on operations of a user, and outputs to a parameter correction unit. The parameter correction unit extracts the feature quantity of pixels in an...
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7596701 |
Online data encryption and decryption
Systems and methods for providing encryption and decryption of data transmitted on a computer implemented network, preferably user authentication identifier data, such as a password, at the point...
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7593587 |
Spectral feature generation using high-pass filtering for scene anomaly detection
A method of detecting an image anomaly (target) within a scene represented by image data comprises obtaining test data from a test window within the scene, combining the test data with reference...
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7593592 |
Method of detecting blocking artifacts
Blocking artifacts within a sequence of digital images are detected by detecting a grid corresponding to the blocking artifacts. A portion of a digital image is high-pass filtered to supply a set...
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7593589 |
Image processing device for processing an image including multiple pixels to create a new image by emphasizing edges of an image
An image processing device emphasizes edges of an image without changing the image. A differential operation is performed on pixel values of a subject pixel and surrounding pixels to calculate a...
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7593588 |
Edge preservation type image processing device
An edge preservation type of recursive filter 12 outputs an unsharpened image (i.e., low-frequency components) which is smoothed while preserving an edge of an input image in at least one...
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7590302 |
Image edge enhancement system and method
We describe and claim an edge enhancement system and method. The edge enhancement system includes an edge enhancement circuit to enhance a portion of image data with enhancement data determined...
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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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7577299 |
Image pickup apparatus and image pickup method
A form of the image pickup apparatus of the invention is characterized by including an image pickup portion that receives a incident light from an image-pickup object and performs a photoelectric...
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7570831 |
System and method for estimating image noise
A method for estimating image noise. Image data for at least one column of pixels and at least one row of pixels of the image is sampled. At least one filter is applied on sampled image data...
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7570830 |
Test method for image sharpness
The present invention discloses a test method for image sharpness, which can instantly determine the sharpness of a captured image, wherein a captured image is firstly divided into multiple blocks...
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7567724 |
Image processing apparatus, image processing method, program of image processing method, and recording medium in which program of image processing method has been recorded
The present invention is applied, for example, to resolution conversion. An edge gradient direction v 1 with the largest gradient of pixel values and an edge direction v 2 orthogonal to the edge...
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7558436 |
Image dynamic range control for visual display
Preferred embodiments of an image display system achieve mapping of high dynamic range image data to render on a lower dynamic range display device a corresponding image characterized by stable...
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7557963 |
Label aided copy enhancement
Regions within a scanned document are labeled according to content. These labeled regions allow for particular enhancement and sharpening methods to be applied. The labeled regions may be further...
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7536052 |
Corner sharpening of text and line art in a super resolution anti-aliasing image path
A method for sharpening the corners of digital image data within an anti-aliasing image path so as to overcome corner rounding when displayed or printed. The method comprises stepping a window...
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7515765 |
Image sharpness management
Methods, media, and a system provide image sharpness management for electronic images. Pixel values for an unmodified image are processed relative to spatial frequency bands for that image. An...
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7512284 |
Volumetric image enhancement system and method
A technique is described for enhancing three dimensional or volumetric image data, such as thick slice or slab data, or data for slices stacked in a third dimension orthogonal to an imaging plane....
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7505841 |
Vision-based occupant classification method and system for controlling airbag deployment in a vehicle restraint system
A vehicle restraint system has a vision-based occupant classification system for control of airbag deployment during a crash scenario. The classification system utilizes two imaging sensors which...
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7502524 |
Method and apparatus of processing a skin print image
In a method and an arrangement for processing a skin print image, and particularly a fingerprint image, which image exists as a gray-level image, provision is made for the gray-level image to be...
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7474798 |
Method and device for image processing, in addition to a night viewing system for motor vehicles
A method and a device for image processing and for a night vision system for motor vehicles, in which a standard camera that is sensitive in the near infrared delivers images which are displayed on...
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7466364 |
Device for reducing flicker defects
The invention relates to a device for reducing flicker disturbances in a video signal having a temporal median filter and a filter connected downstream. The temporal median filter serves for...
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7466459 |
Method for enhancing scan resolution
A method for enhancing scan resolution, suitable for the application of a scanner with a sensor. The range that a detecting cell in the sensor can detect is the original pixels with a predetermined...
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7463784 |
Image processing method and apparatus for image sharpening
An image processing apparatus for sharpening photographic image data obtained through digitization of a photographic image by using a sharpening filter capable of sharpening intensity adjustment....
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7454081 |
Method and system for video edge enhancement
A system and method that enhance edges in images by detecting and correcting edges of the components of the image, such as the luma and the chroma components. The luma and the chroma edges may be...
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7433084 |
Digital de-screening technique for scanned documents
A method and system for de-screening an image signal utilizing a bank of filters to provide several increasingly blurred versions of the original image signal is disclosed. At any given time, only...
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7433536 |
Method for enhancing a digital image while suppressing undershoots and overshoots
A method is provided for enhancing the details of an image while suppressing or preventing shoots that would otherwise occur during a prior art enhancement process. The enhancing method is based on...
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7430336 |
Method and apparatus for image enhancement for low bit rate video compression
A method and apparatus for deblocking and edge enhancement of block based digital video includes determining that two blocks share a common boundary; measuring edge activity of the common boundary,...
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7430334 |
Digital imaging systems, articles of manufacture, and digital image processing methods
Digital imaging systems, articles of manufacture, and digital image processing methods are described. According to one aspect, a digital imaging system includes an imaging system configured to...
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7424167 |
Tide filtering for video surveillance system
A machine-accessible medium containing software code that, when read by a computer, causes the computer to perform method for filtering a video in a video system. The method may include generating...
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7412107 |
System and method for robust multi-frame demosaicing and color super-resolution
An integrated method for both super-resolution and multi-frame demosaicing includes an image fusion followed by simultaneous deblurring and interpolation. For the case of color super-resolution,...
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7412106 |
Methods for locating and decoding distorted two-dimensional matrix symbols
A method is presented for processing an image of a two-dimensional (2D) matrix symbol having a plurality of data modules and a discontinuous finder pattern, each distorted by “donut effects”. A...
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7391933 |
Method and apparatus for image interpolation based on adaptive polyphase filters
An interpolation system interpolates image positions in an original image to produce an interpolated output image, wherein the original image is represented by digital input pixel data. A first...
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7391919 |
Edge correction apparatus, edge correction method, program, and storage medium
This invention has as its object to provide an edge correction apparatus which can execute base clip processes optimal to different noise levels depending on the level of an input signal. To this...
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7379213 |
Output image adjustment of image data
The sharpness of image data is adjusted using image data generated by an image generating device and image generating information that is associated with the image data and includes at least...
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7379611 |
Generic image hallucination
Techniques are disclosed to enable generation of a high-resolution image from any generic low-resolution image. In one described implementation, a method includes extracting, at a training phase, a...
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7375856 |
Halftone screen frequency and magnitude estimation for digital descreening of documents
An efficient method and system for eliminating halftone screens from scanned documents while preserving the quality and sharpness of text and line-art is disclosed. The method and system utilizes...
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7372905 |
Filtering intensity decision method, moving picture encoding method, and moving picture decoding method
A moving picture coding apparatus including an inter-pixel filter having the filters for filtering decoded image data so as to remove block distortion which is high frequency noise around block...
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7373010 |
Method and device for post-processing digital images
A method of post-processing digital images frequency transforming a set of the pixels to a set of transformed coefficients; extracting original low-frequency coefficients and original...
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7373013 |
Directional video filters for locally adaptive spatial noise reduction
Spatial noise is reduced in an image having a plurality of pixels by detecting object boundaries and unstructured areas in the image and applying 3-tap high pass filters to each pixel in the image...
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7366351 |
Camera having processor for up-interpolating Bayer image for printing by internal printer
A camera is provided comprising a Bayer color filter array arranged to capture an input image as a non-linear Bayer image comprising RGB pixels arranged in Bayer format, a processor and a printer....
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7362912 |
Method and system for immediately determining incorrect pixel values of a captured image
A method for immediately determining incorrect pixel values of a captured image on an optical mouse, which determines a quality of an image in a video stream captured by the optical mouse and...
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7359567 |
Signal processing apparatus for eliminating ringing signal and method thereof, record medium, and program
Image quality degrading components can be eliminated from a contour correction signal of high frequency region that is used for contour correction. A filtering section extracts a high frequency...
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7355757 |
Fast edge reconstruction with upscaling for pulse width modulation rendering
A selected antialiasing technique is applied to non-labeled gray-scale or color image data by deconstructing an image into a set of binary images, applying the antialiasing method to each binary...
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7355755 |
Image processing apparatus and method for accurately detecting character edges
An image processing apparatus includes an edge amount calculating device configured to calculate edge amounts of an image in a plurality of directions for each of a plurality of frequency bands of...
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7356197 |
Variable tap filter architecture for image processing
An embodiment of the present invention is an apparatus to filter two-dimensional (2-D) data. A first filter processes two-dimensional (2-D) data in a block of pixels in a first dimension for a...
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7348991 |
Video/graphics text mode enhancement method for digitally processed data
A text enhancement unit is introduced in order to alleviate the degradation of text characters on computer or television displays. The text enhancement unit uses an enhancement process to regain...
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7346226 |
Method and apparatus for MPEG artifacts reduction
Disclosed herein are methods and apparatus, including computer program products, implementing and using techniques for reducing mosquito noise in an image frame of a video signal. A window of the...
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