Lowpass Filter (i.e., For Blurring Or Smoothing) Patents (Class 382/264)
  • Patent number: 8605083
    Abstract: In a method, unit and display device the input image signal is split into a regional contrast signal (VRC) and a detail signal (VD), followed by stretching separately the dynamic ranges for both signals, wherein the dynamic range for the regional contrast signal is stretched with a higher stretch ratio than the dynamic range for the detail signal. Preferably the stretch ratio for the detail signal is near 1 or preferably 1. In preferred embodiment highlights are identified and for the highlights the dynamic range is stretched to an even higher degree than for the regional contrast signal.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: December 10, 2013
    Assignee: Koninklijke Philips N.V.
    Inventor: Remco Theodorus Johannes Muijs
  • Patent number: 8600189
    Abstract: To combine two or more images, an image capture device may compute motion vectors for a plurality of blocks of pixels of one of the images. The image capture device may also interpolate or extrapolate motion vectors for individual pixels or sub-blocks of pixels using the block motion vectors. The image capture device may then average the first and second images by averaging each of the pixels of the first image with pixels of the second image that correspond to a location indicated by the plurality of motion vectors. These techniques may reduce blur in image information resulting from certain movements during image capture or the use of certain image capture technologies.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: December 3, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Kalin Atanssov, Chinchuan Andrew Chiu, Hau Hwang, Hsiang-Tsun Li
  • Publication number: 20130315500
    Abstract: There is provided an image processing apparatus including a vector detection unit which detects flow vectors of pixels in an inputted image, a vector-coherency calculation unit which calculates vector coherency based on the flow vectors detected by the vector detection unit, a deformation-characteristic computation unit which computes a deformation characteristic by using the vector coherency calculated by the vector-coherency calculation unit, the deformation characteristic being used for deforming a tap shape of a filter used for each of the pixels, and a painterly conversion unit which converts the inputted image based on the deformation characteristic computed by the deformation-characteristic computation unit.
    Type: Application
    Filed: April 22, 2013
    Publication date: November 28, 2013
    Applicant: Sony Corporation
    Inventor: Masakazu EBIHARA
  • Patent number: 8594445
    Abstract: One embodiment of the present invention provides a system for applying a bilateral filter to an image. During operation, the system selects a first region within the image which is associated with a first pixel. Next, the system constructs a first histogram using pixel values within the first region. The system then computes a new value for the first pixel using the current value of the first pixel and the first histogram. The system then selects a second region within the image which is associated with a second pixel. Next, the system determines a non-overlapping region between the first region and the second region. The system then constructs a second histogram using the first histogram and pixel values in the non-overlapping region. Next, the system computes a new value for the second pixel using the current value of the second pixel and the second histogram.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: November 26, 2013
    Assignee: Adobe Systems Incorporated
    Inventor: Christopher B. Cox
  • Patent number: 8594448
    Abstract: Methods, machines, and computer-readable media for processing an input image with a bi-selective filter in a transform domain are described. In one aspect, a forward transform of an input image is computed. A bi-selective filter smoothes image regions with low magnitude coefficients and sharpens image regions with high magnitude coefficients. An output image is generated from the filtered forward transform.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: November 26, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hila Nachlieli, Carl Staelin, Mani Fischer, Doron Shaked, Pavel Kisilev
  • Patent number: 8594436
    Abstract: Method for detecting edge of fixed pattern includes receiving and analyzing a first image to obtain a first edge information. Second image and a corresponding second edge information are received, in which the second image includes an accumulation of image history information. According to the first edge information and the second edge information, a consistent number and an inconsistent number for pairs of pixels at the corresponding location of the first image and the second image are calculated, in which the consistent number represents how many pairs of pixels of which two compared pixels of each pair are both edge pixels, and the inconsistent number represents one of the two compared pixels is not the edge pixel. When the consistent number is greater than first predetermined value and meanwhile the inconsistent number is less than second predetermined value, first image and second image have a fixed pattern with fixed edge.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: November 26, 2013
    Assignee: Novatek Microelectronics Corp.
    Inventors: Yu-Shu Liu, Chun-Wei Chen, Jiande Jiang, Tsui-Chin Chen
  • Publication number: 20130308874
    Abstract: Systems and methods for communicating by a computing device over a communication network are disclosed. The computing device can receive, by a processor in the computing device, image data, apply, by the processor, a low-pass filter associated with a predetermined parameter on at least a portion of the image data to generate blurred image data, and compress, by the processor, the blurred image data using an image compression system to generate compressed blurred image data. Subsequently, the computing device can send, by the processor, the compressed blurred image data over the communication network, thereby consuming less data transmission capacity compared with sending the image data over the communication network. The image data sent over the communication network can include overlay layer information containing modifications to the original image and password protection.
    Type: Application
    Filed: March 15, 2013
    Publication date: November 21, 2013
    Inventor: KASAH TECHNOLOGY
  • Patent number: 8588551
    Abstract: The multi-image sharpening and denoising technique described herein creates a clean (low-noise, high contrast), detailed image of a scene from a temporal series of images of the scene. The technique employs a process of image alignment to remove global and local camera motion plus a novel weighted image averaging procedure that avoids sacrificing sharpness to create a resultant high-detail, low-noise image from the temporal series. In addition, the multi-image sharpening and denoising technique can employ a dehazing procedure that uses a spatially varying airlight model to dehaze an input image.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: November 19, 2013
    Assignee: Microsoft Corp.
    Inventors: Neel Joshi, Michael Cohen
  • Patent number: 8588543
    Abstract: A signal processing apparatus includes: a first low-pass filter filtering a data signal; and a convolving section convolving low frequency components of the data signal obtained by the first low-pass filter with a compensation filter for compensating for signal degradation attributable to low frequency components of impulse response obtained by filtering the impulse response with a second low-pass filter.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: November 19, 2013
    Assignee: Sony Corporation
    Inventors: Yukihiko Mogi, Ken Tamayama
  • Publication number: 20130301952
    Abstract: In an example embodiment a method, apparatus and computer program product are provided. The method includes accessing feature points in a first frame of a content, and aligning a second frame to the first frame based on determining a transformation matrix between the second frame and the first frame based on matching the feature points in the first frame with a corresponding feature points in the second frame. The method further includes aligning at least one subsequent frame from the second frame to the first frame by generating a modified first frame based on a transformation matrix between a preceding frame of a subsequent frame and the first frame, and determining a transformation matrix between the subsequent frame and the first frame based on matching a set of feature points in the modified feature points with corresponding feature points in the subsequent frame.
    Type: Application
    Filed: May 3, 2013
    Publication date: November 14, 2013
    Applicant: Nokia Corporation
    Inventors: Soumik Ukil, Krishna Annasagar Govindarao
  • Patent number: 8582912
    Abstract: Imaging systems with image sensors and image processing circuitry are provided. The image processing circuitry may calculate sharpness values for a window within an image captured by the image sensors. The window may be divided into zones. A first filter may be applied to each row of each zone. A first sharpness value may be calculated by averaging the absolute values of the outputs of the first filter that are greater than a first threshold. A second sharpness value may be calculated by averaging the absolute values of the outputs of the second filter that are greater than a second threshold. A final sharpness value for each zone may be calculated by dividing the second sharpness value by the first sharpness value and multiplying the result by corresponding scalar weights. A window sharpness value may be calculated from the weighted sum of the final sharpness values of each zone.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: November 12, 2013
    Assignee: Aptina Imaging Corporation
    Inventor: Huai Dong Li
  • Patent number: 8577167
    Abstract: The invention discloses an image processing system and method thereof. The image processing system includes an local variance estimator, a noise detector, a spatial de-noise filter. The local variance estimator estimates each pixel of an input image signal to separately output a local variance value of each pixel, and generates a noise threshold according to the local variance values. The noise detector determines which pixel indicates noise or image according to the noise threshold. The spatial de-noise filter filers the pixel indicating noise to generate an output image signal.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: November 5, 2013
    Assignee: Realtek Semiconductor Corp.
    Inventors: Wei-Na Chang, Chia-Wei Yu
  • Patent number: 8571354
    Abstract: A method of reducing the spatial resolution of images is disclosed. At least one embodiment of the method includes: —acquiring an input image including image parts having a spatial resolution larger than SR pixels/meter; —acquiring a depth map associated with the input image; —determining for each pixel p(x,y) a spatial resolution value by means of the depth map; —processing a region of pixels of the input image for which holds that the spatial resolution value is larger than a predefined threshold corresponding to SR pixels/meter to obtain a corresponding region of pixels having a spatial resolution smaller then or equal to SR pixels/meter in an output image. The method enables to removes privacy information from images by reducing the spatial resolution to a level that the privacy information cannot be recognized in the image anymore.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: October 29, 2013
    Assignee: Tomtom Global Content B.V.
    Inventors: Krzysztof Miksa, Marcin Michal Kmiecik
  • Patent number: 8571305
    Abstract: An image processing device and a method thereof are provided. In the method, an original image and a corresponding depth image are received, wherein the depth image includes a plurality of depth values, and the depth values indicate depth of field of a plurality of blocks in the original image respectively. Further, each of the blocks is processed to obtain a corresponding smoothness and/or sharpness effect according to each of the depth values. Thereby, a stereoscopic sensation of the original image can be enhanced.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: October 29, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventor: Meng-Chao Kao
  • Patent number: 8570406
    Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: October 29, 2013
    Assignee: InView Technology Corporation
    Inventors: Kevin F. Kelly, Richard G. Baraniuk, Lenore McMackin, Robert F. Bridge, Sujoy Chatterjee, Donna E. Hewitt, Tyler H. Weston
  • Publication number: 20130272625
    Abstract: An image editing method for editing an original image is provided. The original image includes at least a first object and a second object. The method includes steps of: obtaining a first distance between the first object and a lens; obtaining a second distance between the second object and the lens; obtaining a blur matrix set according to the first distance and an optical parameter; obtaining a first blur matrix from the blur matrix set according to the second distance; and performing a blur process on the second object according to the first blur matrix to generate a blurred second object, and generating a simulated image from the first object and the blurred second object.
    Type: Application
    Filed: January 23, 2013
    Publication date: October 17, 2013
    Applicant: MStar Semiconductor, Inc.
    Inventor: Kun-Nan Cheng
  • Patent number: 8559746
    Abstract: System, method, and apparatus for smoothing of edges in images to remove irregularities are disclosed. In one aspect of the present disclosure, a method of image processing includes, identifying an edge in an image having an associated set of edge characteristics, determining the associated set of edge characteristics, and applying a low pass filter to a pixel of the edge based on the associated set of edge characteristics to generate a second image based on the image, wherein the edge in the image is smoothed in the second image. The method further includes generating a third image which is a blend of the original image and the second (edge-smoothed) image based on the associated set of edge characteristics.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: October 15, 2013
    Assignee: Silicon Image, Inc.
    Inventor: Dale Richard Adams
  • Patent number: 8559749
    Abstract: A system for processing video data to improve image quality at low data rates comprising an encoder generating an entropy signal representing the relative entropy of the video data and a plurality of filters each receiving the entropy signal and a threshold setting and filtering the video data if the entropy signal is greater than the threshold setting.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: October 15, 2013
    Assignee: Streaming Appliances, LLC
    Inventor: Robert W. Reams
  • Patent number: 8559714
    Abstract: An automated, computerized method is provided for processing an image. The method includes the steps of providing an image file depicting an image, in a computer memory, generating an intrinsic image corresponding to the image and modifying the intrinsic image by performing an edge-preserving blur of illumination.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: October 15, 2013
    Assignee: Tandent Vision Science, Inc.
    Inventor: Casey Arthur Smith
  • Patent number: 8553293
    Abstract: An image interpolation apparatus includes an extracting unit, temporal interpolation calculators, pattern matching units, and an output unit. The extracting unit extracts pixels around the missing pixels in order to form a basic frame and comparative frames. Each temporal interpolation calculator corresponds to each comparative frame, and calculates a temporal interpolated pixel for each comparative frame based on signal levels and variation of the signal levels. Each pattern matching unit corresponds to each comparative frame, inserts the temporal interpolated pixel of each comparative frame to the missing pixel, calculates difference of between each of the pixels in the basic frame and each of the corresponding pixels in the comparative frame, and sums up the differences for all pixels in absolute value to obtain sums for all comparative frames respectively. The output unit outputs the temporal interpolated pixel having a minimum sum among the sums as a final interpolated pixel.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: October 8, 2013
    Assignee: Toshiba Design & Manufacturing Service Corporation
    Inventor: Michio Tabata
  • Patent number: 8548226
    Abstract: In stereo matching based on standard area matching, in order to suppress a decrease in matching accuracy, it is effective to adaptively change a matching area in accordance with the local properties of an image. However, this requires high calculation costs.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: October 1, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Morihiko Sakano, Mirai Higuchi, Takuya Naka, Takeshi Shima, Shoji Muramatsu
  • Patent number: 8547483
    Abstract: An image processing method includes receiving an image data including a first pixel, a second pixel and a third pixel, the second pixel being between the first pixel and the third pixel; calculating a difference between two initial chrominance values of the first pixel and two initial chrominance values of the second pixel to determine a first difference, and calculating a difference between the two initial chrominance values of the second pixel and two initial chrominance values of the third pixel to determine a second difference; comparing the first difference with the second difference to select either the first pixel or the third pixel as a target pixel; and determining two adjusted chrominance values of the second pixel according to at least two initial chrominance values of the target pixel.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: October 1, 2013
    Assignee: MStar Semiconductor, Inc.
    Inventors: Mei-Ju Chen, Jen-Shi Wu, Wei-Kuo Lee
  • Publication number: 20130251265
    Abstract: The present invention relates to the parallel calculation of convoluted data. In particular, the invention relates to Gaussian pyramid construction and parallel processing of image data, such as parallel calculation of repeatedly convoluted data for use in a SIFT algorithm.
    Type: Application
    Filed: December 15, 2011
    Publication date: September 26, 2013
    Applicant: IVISYS APS
    Inventor: Moatasem Chehaiber
  • Patent number: 8542942
    Abstract: Tunable Gaussian filters enable imaging effects to be applied to images and videos in orientations other than standard symmetric, 0 degree orientations and 90 degree orientations. The tunable Gaussian filters are able to be applied in any orientation such as 45 degrees, slightly less than 45 degrees and slightly more than 0 degrees.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 24, 2013
    Assignee: Sony Corporation
    Inventors: Earl Wong, Akira Matsui
  • Publication number: 20130243330
    Abstract: A method and an apparatus for constructing an image blur pyramid, and an image feature extracting circuit are disclosed. The image blur pyramid construction apparatus comprises a first image blur circuit, a second image blur circuit and an image sub-sampler. The first image blur circuit and the second image blur circuit simultaneously generate a first interval and a second interval in the same octave according to an input image, a first filter and a second filter. The dimension of the second filter is greater than that of the first filter. The image sub-sampler couples with the second image blur circuit and down samples the second interval to generate a sub-sample image.
    Type: Application
    Filed: August 20, 2012
    Publication date: September 19, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Liang-Chi Chiu, Yen-Chung Chang, Jiun-Yan Chen, Jwu-Sheng Hu, Tian-Sheuan Chang
  • Publication number: 20130236117
    Abstract: A method of providing a blurred image includes receiving a target image to which a blur effect is to be applied; receiving blur effect information for generating the blur effect in the target image; calculating a sum image for respective pixels of the target image; applying a mean filter to the target image by using the sum image based on the blur effect information; and providing a blurred image formed by applying the mean filter.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 12, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dong-Hyuk LEE, Do-Hyeon Kim, Hee-Bum Ahn, Dong-Chang Lee, Won-Suk Chang
  • Patent number: 8532420
    Abstract: An image processing apparatus for correcting a positional deviation between a plurality of images obtained in time series and performing synthesis processing on the plurality of corrected images determines a motion vector between the plurality of images, corrects the positional deviation between images on the basis of the determined motion vector, and generates a synthesized image by synthesizing the plurality of images subjected to the positional deviation correction. The image processing apparatus extracts a filter area in which filter processing is to be performed on the basis of a degree of inconsistency occurring when the positional deviation between the plurality of images is corrected, determines a filter kernel on the basis of an imaging condition, and performs filter processing based on the filter kernel on the filter area of the synthesized image.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: September 10, 2013
    Assignee: Olympus Corporation
    Inventor: Munenori Fukunishi
  • Patent number: 8532170
    Abstract: A system is provided for processing video images for display. In one example, the system comprises a stream parser for retrieving a compressed main video data and a sub-picture identifier. A video decoder generates a main video image having a main video intensity value for each pixel in the main video. A sub-picture decoder determines a sub-picture image based on the sub-picture identifier. The sub-picture image includes a pixel data for each pixel in the sub-picture image indicative of a sub-picture pixel type including a background pixel type and a pattern pixel type. Each pixel includes a command code indicative of a background contrast level, a pattern contrast level, a background color level and a pattern color level. An intensity formatter generates a sub-picture pixel intensity for each pixel in the sub-picture image.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: September 10, 2013
    Assignee: Harman International Industries, Incorporated
    Inventors: Yong-Gab Park, John E. Crosbie, Shrikant Acharya
  • Patent number: 8532428
    Abstract: A noise reducing apparatus and associated method and program for improving image quality in an image are provided. The noise reducing apparatus detects a flat area from an image and analyzes the noise from the flat area, and then it suppresses a noise component of the image based on the noise analysis result.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: September 10, 2013
    Assignee: NEC Corporation
    Inventor: Akira Inoue
  • Patent number: 8526753
    Abstract: A method of generating a multiscale contrast enhanced image is described wherein the shape of edge transitions is preserved. Detail images are subjected to a conversion, the conversion function of at least one scale being adjusted for each detail pixel value according to the ratio between the combination of the enhanced center differences and the combination of the unenhanced center differences. Several adaptive enhancement measures are described.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: September 3, 2013
    Assignee: Agfa HealthCare NV
    Inventors: Tom Bertens, Pieter Vuylsteke
  • Patent number: 8526765
    Abstract: A super-resolution processor includes an N enlargement unit that generates an N-enlarged image by enlarging the input image by a factor N; an M enlargement unit that generates an M-enlarged image by enlarging the input image by a factor M; and a high-pass filter unit that extracts a high-frequency component of the M-enlarged image, as an M-enlarged high-frequency image. Additionally, a patch extraction unit extracts an estimated patch of a predetermined size from the M-enlarged high-frequency image, the estimated patch being a part of the M-enlarged high-frequency image; and an addition unit adds the estimated patch to a processing target block of the predetermined size in the N-enlarged image, to generate the output image, where M is smaller than N.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: September 3, 2013
    Assignee: Panasonic Corporation
    Inventors: Satoshi Sakaguchi, Toru Matsunobu, Kenji Takita
  • Patent number: 8514302
    Abstract: An image processing equipment generates a reduced image corresponding to an obtained image in parallel with a processing of storing the generated reduced image in a reduced image storing part, and pipelines a processing of extracting a low-frequency noise component of each of pixels included in the obtained image and a processing of sequentially subtracting the low-frequency being extracted from pixel data corresponding to one of the obtained image stored in the image storing part and an adjusted image generated from the obtained, so as to achieve a pipeline processing of a multi-resolution noise filtering with a few line memories.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: August 20, 2013
    Assignee: Nikon Corporation
    Inventor: Akihiko Utsugi
  • Patent number: 8511835
    Abstract: A CPU generates an image by performing inverse projection transformation for an input image by using an inverse matrix of a matrix which enlarges a size of the input image. When a position A on the input image is transformed into a position B on the generated image by the inverse projection transformation, the CPU obtains a ratio of a distance between pixels around the position B to a distance between pixels around the position A. The CPU calculates filter coefficients for a low-pass filter using a product of a Nyquist frequency of the input image and the ratio as a cutoff frequency. The CPU obtains a sum of results obtained by multiplying pixel values of pixels in a pixel array including the position A in the input image by the filter coefficients, as a pixel value at the position A in an image having undergone filter processing.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: August 20, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yosuke Sato
  • Patent number: 8509559
    Abstract: A hierarchical motion deblurring method for a single image is provided. In the method, a blur kernel of a target image is calculated and a multi-scale representation for representing the target image and the blur kernel is constructed. Then, a gradient attenuation function and a strong edge suppression function are applied to a residual Richardson-Lucy algorithm, so as to iteratively calculate a residual image between the blur kernel and the target image represented by the representation in each scale and restore the residual image to obtain a first restored image and a second restored image. Finally, the two restored images are compared so as to obtain a motion deblurring image.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: August 13, 2013
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hao-Liang Yang, Po-Hao Huang, Shang-Hong Lai, Chih-Chih Huang, Shu-Han Yu
  • Publication number: 20130202220
    Abstract: A mask correcting unit corrects an externally set mask pattern. A depth map processing unit processes a depth map of an input image for each of a plurality of regions designated by a plurality of mask patterns corrected by the mask correcting unit. An image generation unit generates an image of a different viewpoint on the basis of the input image and depth maps processed by the depth map processing unit. The mask correcting unit performs a blurring process on an object boundary part of the mask pattern.
    Type: Application
    Filed: February 6, 2013
    Publication date: August 8, 2013
    Applicant: JVC KENWOOD Corporation
    Inventor: JVC KENWOOD Corporation
  • Patent number: 8503826
    Abstract: There is provided an algorithm that allows one, using a sequence of object images provided at different angles, to generate a 360 degree view model of an object. To generate such a model, the inventive algorithm may involve the following tasks: 1) provide a set of images (the number and size are unlimited), 2) reduce their features to the same brightness and contrast, 3) separate an object from a complex (heterogeneous) background in the images, 4) stabilize the objects in every image with respect to each other, and 5) process the resulting sequence of images to generate a 360 degree view.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: August 6, 2013
    Assignee: 3DBin, Inc.
    Inventor: Dmitry Klimenko
  • Patent number: 8498019
    Abstract: An image forming apparatus capable of reducing a stitch effect, an image forming system including the same, and a printing method thereof. The printing method of the image forming system includes inputting image data to be printed; and, if adjacent first and second objects included in the input image data have different LPIs (Lines Per Inch), emphasizing at least one of boundaries of the first and second objects and printing the image data with an emphasized boundary.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: July 30, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Woo-ri Choi
  • Publication number: 20130182968
    Abstract: A computer-implemented method for applying a filter to an image comprising: receiving a filter setting, selecting a selected filter from a family of filters stored on a computer-readable storage medium, based at least on the filter setting, wherein the family of filters comprises a plurality of filters each being an approximation of a function on different orders, and applying the selected filter to a stored image with a processor.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 18, 2013
    Applicant: SONY CORPORATION
    Inventors: Dennis Adams, Nikolaos Georgis, Zhenglu Wu
  • Publication number: 20130182950
    Abstract: A method for enhancing a digitized image of a document containing text or graphics. The digitized image is decomposed into a low-frequency pedestal image and a high-frequency residual image. A first gain factor image is determined by applying a first tonescale function to the residual image, and a second gain factor image is determined by applying a second tonescale function to the residual image pixel values, wherein parameters defining the tonescale functions are determined by analyzing the pedestal and residual images. An enhanced document image is formed by combining a scaled pedestal image determined by multiplying the pedestal image by the first gain factor image, and a scaled residual image determined by multiplying the residual image by the second gain factor image.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 18, 2013
    Inventor: Efrain Orlando Morales
  • Publication number: 20130182780
    Abstract: Provided are a method of interpolating an image by determining interpolation filter coefficients, and an apparatus for performing the same. The method includes: differently selecting an interpolation filter, from among interpolation filters for generating at least one sub-pel-unit pixel value located between integer-pel-unit pixels, based on a sub-pel-unit interpolation location and a smoothness; and generating the at least one sub-pel-unit pixel value by interpolating, using the selected interpolation filter, pixel values of the integer-pel-unit pixels.
    Type: Application
    Filed: September 30, 2011
    Publication date: July 18, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Alexander Alshin, Elena Alshin, Jianle Chen, Woo-Jin Han, Nikolay Shlyakhov, Yoon-Mi Hong
  • Patent number: 8488009
    Abstract: An image processing apparatus includes a motion-blur adding mechanism performing filter processing on moving image data to be subjected to coding processing in accordance with motion information indicating motion of an image between unit images included in the moving image data as pre-processing of the coding processing so that motion-blur addition processing is performed.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: July 16, 2013
    Assignee: Sony Corporation
    Inventors: Atsushi Ito, Toshio Yamazaki, Seiji Kobayashi
  • Patent number: 8488896
    Abstract: An image processing apparatus and an image processing method blurs a background portion of an image. The image processing apparatus includes an image acquiring unit for acquiring original image data; an image processing unit for separating background pixels from foreground pixels in the original image; an image filtering unit for filtering the background pixels; and an image merging unit for merging the foreground pixels with the filtered background pixels in order to generate a new image having a blurred background.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: July 16, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Zhongchao Shi, Cheng Du, Tao Li, Gang Wang
  • Patent number: 8478064
    Abstract: An edge-preserving diffusion filter maintains the sharp edges in images while smoothing out image noise. An edge-preserving diffusion filter applies an edge-preserving smoothing filter to an image to form a filtered image. The modified image is then blurred by a blurring filter to form a blurred image. The modified image and the blurred image are blended together to form an output image based on an error metric associated with each pixel. The edge-preserving diffusion filter may be utilized to perform a multilevel decomposition of the image. The edge-preserving diffusion filter may be applied to an unfiltered image to produce a base image. The difference between the unfiltered image and the base image defines a detail image. The detail image may be used as the input for recursively generating additional levels of detail. The multilevel decomposition may utilize filter kernels associated with different contrast levels for each iteration.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: July 2, 2013
    Assignee: Pixar
    Inventor: Michael Kass
  • Patent number: 8478063
    Abstract: An image processing apparatus sets the pixels of an input image as process target pixels by using low pass filters (LPF #1—1 to LPF #1—n) each having different level value ranges, computes the average values of the pixels included in the level value ranges from the pixels of the input image including process target pixels included within the filter sizes of the low pass filters, generates level-value-limited smoothed images #1 limited by the level values, generates level-value-limited smoothed images #2 by using low pass filters (LPF #2—1 to LPF #2—n) each having level value ranges or filter sizes different from those of LPF #1—1 to LPF #1—n, selects either of the level-value-limited smoothed images #1 or the level-value-limited smoothed images #2 on the basis of the process target pixels and level values different from the level values utilized by LPFs, synthesizes the selected level-value-limited smoothed images, and generates a smoothed image.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: July 2, 2013
    Assignee: Fujitsu Limited
    Inventors: Yuushi Toyoda, Masayoshi Shimizu
  • Patent number: 8478033
    Abstract: An image inspection apparatus determines whether a test image is a copy of an original image. The image inspection apparatus includes an image group generation unit that determines one or more types of image transform, and transforms the original image according to the determined types of image transform to generate an original image group; a spatial color difference computing unit that transforms a color space of the generated original image group, and calculates first spatial color differences between the original image and images in the original image group to provide color difference data; an image inspection unit that receives the test image and the original image group to calculate second spatial color differences between the test image and the images in the original image group, and compares the second spatial color differences to the color difference data; and an inspection result output unit that outputs the comparison result.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: July 2, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Seo Kim, Maeng Sub Cho, Bon Ki Koo
  • Patent number: 8478062
    Abstract: A method for producing a noise-reduced digital image captured using a digital imaging system having signal-dependent noise characteristics, comprising: capturing one or more noisy digital images of a scene, wherein said at least one noisy digital image has signal-dependent noise characteristics; defining a functional relationship to relate the noisy digital images to a noise-reduced digital image, wherein the functional relationship includes at least two sets of unknown parameters, and wherein at least one of the sets of unknown parameters relates to the signal-dependent noise characteristics; defining an energy function responsive to the functional relationship which includes at least a data fidelity term to enforce similarities between the noisy digital images and the noise-reduced digital image, and a spatial fidelity term to encourage sharp edges in the noise-reduced digital image; and using an optimization process to determine a noise-reduced image responsive to the energy function.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: July 2, 2013
    Assignee: Apple Inc.
    Inventors: Mrityunjay Kumar, Rodney L. Miller
  • Publication number: 20130163895
    Abstract: An image processing method for removing a noise component contained in an original image, includes: separating an original image into a temporary noise-free image and a temporary noise component; extracting an edge component in the temporary noise-free image by executing edge detection on the temporary noise-free image; determining a fine edge component in the original image contained in the temporary noise component based upon a level of the extracted edge component; extracting an actual noise component by excluding the fine edge component from the temporary noise component; and removing noise from the original image based upon the extracted actual noise component.
    Type: Application
    Filed: December 31, 2012
    Publication date: June 27, 2013
    Applicant: NIKON CORPORATION
    Inventor: NIKON CORPORATION
  • Patent number: 8472743
    Abstract: A method for estimating a blur direction (20) of motion blur (16) in a blurred image (14) includes the steps of blurring the blurred image (14) in a number of different test directions (360A) (362A) (364A), and finding the test direction (360A) (362A) (364A) for which the blurred image (14) changes the least by the additional blurring (366). With this design, when more blur (366) is applied to the blurred image (14) in a test direction (360A) (362A) (364A) that is similar to the blur direction (20), the difference in the image appearance is relatively small. However, when more blur (366) is applied to the blurred image (14) in a test direction (360A) (362A) (364A) that is very different to the blur direction (20), the difference in the image appearance is relatively large. In one embodiment, a blur difference is determined for each test direction (360A) (362A) (364A). Subsequently, the test direction (360A) (362A) (364A) with the smallest blur difference is selected as the blur direction (20).
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: June 25, 2013
    Assignee: Nikon Corporation
    Inventor: Radka Tezaur
  • Patent number: 8472746
    Abstract: A method for generating a depth map for a 2D image includes receiving the 2D image; analyzing content of the received 2D image; determining a depth map based on a result of the content analysis; refining the determined depth map using an edge-preserving and noise reducing smoothing filter; and providing the refined depth map.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: June 25, 2013
    Assignee: Sony Corporation
    Inventors: Jianing Wei, Xue Tu, Xiaoling Wang, Alexander Berestov
  • Patent number: RE44497
    Abstract: Adjacent blocks are identified in an image. Coding parameters for the adjacent blocks are identified. Deblock filtering between the identified adjacent blocks is skipped if the coding parameters for the identified adjacent blocks are similar and not skipped if the coding parameters for the identified adjacent blocks are substantially different.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: September 17, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shijun Sun, Shawmin Lei