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Browse by Category: Main > Optical & Optics
Class Information
Number: 382/280
Name: Image analysis > Image transformation or preprocessing > Fourier transform
Description: Subject matter wherein a Fourier transform is performed on image data.










Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
7110613 Image processing apparatus and image pickup device Sep. 19, 2006
7110567 Optimized detection of a watermark in an information signal Sep. 19, 2006
7103234 Method for blind cross-spectral image registration Sep. 5, 2006
7103223 Apparatus and method for radial and angular or rotational analysis or images for shape content and matching Sep. 5, 2006
7095904 Method and apparatus for determining best focus using dark-field imaging Aug. 22, 2006
7092583 Apparatus and method for detecting the authenticity of secured documents Aug. 15, 2006
7085686 Method and system for canceling noise and compressing data from a motor phase angle sensor Aug. 1, 2006
7079705 Color interpolation for image sensors using a local linear regression method Jul. 18, 2006
7079704 Objective method and system for estimating perceived image and video sharpness Jul. 18, 2006
7072492 Method and apparatus for digital watermarking Jul. 4, 2006
7058238 Image pick-up apparatus and image picking-up method Jun. 6, 2006
7054504 Relative optical path phase reconstruction in the correction of misfocused images using fractional powers of the fourier transform May. 30, 2006
7050653 Identification of virtual raster pattern May. 23, 2006
7039252 Iterative approximation environments for modeling the evolution of an image propagating through a physical medium in restoration and other applications May. 2, 2006
7013030 Personal choice biometric signature Mar. 14, 2006
7006693 Object recognition method Feb. 28, 2006
6993186 Energy minimization for classification, pattern recognition, sensor fusion, data compression, network reconstruction and signal processing Jan. 31, 2006
6990252 System for manipulating noise in digital images Jan. 24, 2006
6985609 Method for identifying an object image Jan. 10, 2006
6983182 Time resolved computed tomography angiography Jan. 3, 2006
6970577 Fast fourier transform correlation tracking algorithm with background correction Nov. 29, 2005
6967780 Image correction using individual manipulation of microlenses in a microlens array Nov. 22, 2005
6963667 System and method for signal matching and characterization Nov. 8, 2005
6950755 Genotype pattern recognition and classification Sep. 27, 2005
6944342 Method for recognizing objects in an image pixel plane Sep. 13, 2005
6940993 System and method for embedding a watermark signal that contains message data in a digital image Sep. 6, 2005
6920235 Method and instrument for determining the distortion angles in textile fabrics or similar, whether fixed or in movement Jul. 19, 2005
6920240 Method for accelerated reconstruction of a three-dimensional image Jul. 19, 2005
6904180 Method for detecting image interpolation Jun. 7, 2005
6873744 Image restoration from transformed component data Mar. 29, 2005
6870965 Texture description method and texture-based image retrieval method using Gabor filter in frequency domain Mar. 22, 2005
6859564 Signal processing using the self-deconvolving data reconstruction algorithm Feb. 22, 2005
6839471 Extended discrete fourier transform and parametric image algorithms Jan. 4, 2005
6831997 MASK DATA CORRECTION APPARATUS, FOURIER TRANSFORMATION APPARATUS, UP SAMPLING APPARATUS, DOWN SAMPLING APPARATUS, METHOD OF MANUFACTURING TRANSFER MASK, AND METHOD OF MANUFACTURING DEVICE HAVI Dec. 14, 2004
6829389 Method and apparatus for evaluating image Dec. 7, 2004
6826295 Method and apparatus for determining reference points in a fingerprint Nov. 30, 2004
6801661 Method and system for archival and retrieval of images based on the shape properties of identified segments Oct. 5, 2004
6795590 SAR and FLIR image registration method Sep. 21, 2004
6779040 Method and system for serving data files compressed in accordance with tunable parameters Aug. 17, 2004
6766054 Segmentation of an object from a background in digital photography Jul. 20, 2004
6766062 Digital ridgelet transform via digital polar coordinate transform Jul. 20, 2004
6762882 System and method for use of dark field fourier diaphragm in multi-frequency imaging Jul. 13, 2004
6735346 HD fourier transforms for irregularly sampled data May. 11, 2004
6731824 Spatial filtering method for failure analysis of a device May. 4, 2004
6731819 Optical information processing apparatus capable of various types of filtering and image processing May. 4, 2004
6721459 Storing sharpness data using embedded carriers Apr. 13, 2004
6701029 Ring-wedge data analysis of digital images Mar. 2, 2004
6701016 Method of learning deformation models to facilitate pattern matching Mar. 2, 2004
6687418 Correction of image misfocus via fractional fourier transform Feb. 3, 2004
6686587 Method of precision calibration of magnification of a scanning microscopes with the use of test diffraction grating Feb. 3, 2004

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