| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 382210000 | Spatial filtering (e.g., holography) | 9 |
| 20080240576 | METHOD OF AND APPARATUS FOR DETECTING ERROR IN IMAGE DATA STREAM - A method is provided for detecting an error in an image data stream in a device environment where digital image data is reproduced, especially, in a wired/wireless network such as a personal portable device. The method comprises determining whether or not an error is present in an input image data stream; determining a similarity between patterns of transform coefficients that are generated in the course of decoding the input image data stream; and detecting the starting position of the error based on the similarity determination. Accordingly, a decoder can independently detect the position of the error accurately, and the quality of an image which is replaced and restored using error concealment can be improved. | 10-02-2008 |
| 20090097758 | Optical wavefront control pattern generating apparatus and optical wavefront control pattern generating method - An optical wavefront control pattern generating apparatus includes: a reconstructed image detector unit configured to detect a reconstructed image displayed on the reconstructed image display unit; and an optimizer unit configured to evaluate the reconstructed image detected by the reconstructed image detector unit, and to generate the optimum optical wavefront control pattern by applying a modification process to the optical wavefront control pattern in order for a result of the evaluation to satisfy a predetermined condition. | 04-16-2009 |
| 20090161967 | METHOD AND APPARATUS FOR OBTAINING AND PROCESSING IMAGE FEATURES - Machine-readable media, methods, apparatus and system for obtaining and processing image features are described. In some embodiments, a Gabor representation of an image may be obtained by using a Gabor filter. A region may be determined from the Gabor representation, wherein the region comprises a plurality of Gabor pixels of the Gabor representation; and, a sub-region may be determined from the region, wherein the sub-region comprises more than one of the plurality of Gabor pixels. Then, a Gabor feature may be calculated based upon a magnitude calculation related to the sub-region and the region. | 06-25-2009 |
| 20090238470 | Adaptive membrane shape deformation system - A system and method determines the shape of a surface that preferably is a deployed space-based adaptive flexible membrane antenna, using patterned projections, image capturing, and membrane shape processing for producing membrane shape data describing the contour of the surface of the membrane with the membrane shape data then preferably used as inputs for a feedback control actuation system for deforming the membrane to a desired shaped so as to maintain the three-dimensional shape of the membrane in the desired shape. | 09-24-2009 |
| 20130084016 | METHOD TO DETERMINE FIDUCIAL POINT FOR HOLOGRAPHIC DATA STORAGE - A method to determine a fiducial point for holographic data storage is disclosed, which utilizes a gray-level frame to sequentially retrieve a regional image used as a retrieved image with the size equal to that of the frame from a received gray-level image. The gray-level frame is compared with each retrieved image to obtain a plurality of values and construct a 2D proto-matrix. The 2D proto-matrix is transformed into a 2D matrix via letting the values smaller than 0 be 0. The 2D matrix and a retrieving matrix, which has a dimensionality equal to or smaller than that of the frame, are used to obtain an anchor matrix. A greatest value in the central region of the 2D matrix is found to function as an anchor value according to the anchor matrix, thereby find a fiducial point in the gray-level image. | 04-04-2013 |
| 20140119667 | Method and Apparatus for Utilizing Representational Images in Analytical Activities - In a method and apparatus for performing an analysis and other activities using one or more two- or three-dimensional representational images, presenting a two- or three-dimensional representational image containing analytical information to assist in the analytical process. One or more two- or three-dimensional representational images are created, e.g., using standard photography, holography or computer imaging, and are placed in a positioner for use by the analyst. The representational images are illuminated using a light source and the analyst utilizes the information released from the representational image to perform an analysis. | 05-01-2014 |
| 20140301651 | METHOD AND DEVICE FOR PERFORMING SPATIAL FILTERING PROCESS ON IMAGE - The present disclosure discloses a method and a device for performing a spatial filtering process on an image, which belongs to computer technology. The method comprises: dividing a target image into a plurality of sections; setting a section consisting pixels with data that satisfies a preset condition respectively, among the plurality of sections, as a section to be processed; and performing a spatial filtering process on the section to be processed. By the present disclosure, efficiency of the spatial filtering process may be improved. | 10-09-2014 |
| 382211000 | With electrically controlled light modulator or filter | 2 |
| 20080219562 | System and Method for Calculating Aerial Image of a Spatial Light Modulator - A method of calculating an aerial image of a spatial light modulator array includes calculating pair-wise interference between pixels of the spatial light modulator array; calculating effective graytones corresponding to modulation states of the pixels; and calculating the aerial image based on the pair-wise interference and the effective graytones. The graytones depend only on the modulation states of the pixels. The pair-wise interference depends only on position variables. The position variables are position in an image plane and position in a plane of a source of electromagnetic radiation. The pair-wise interference can be represented by a matrix of functions. The pair-wise interference can be represented by a four dimensional matrix. The effective graytones are approximated using sinc functions, or using polynomial functions. | 09-11-2008 |
| 20080279458 | Imaging system for shape measurement of partially-specular object and method thereof - The present invention can perform the optical measurement in the partially-specular object by preventing a generation of light saturation and blooming for an object with partially-specular characteristics by lowering the transmittance of specular lobe through the spatial light modulator. Therefore, the present invention can widen the measurement range up to the partially-specular object in the state where the advantages of the active optical measurement method of contactless, rapid measurement, and high precision are maintained. | 11-13-2008 |
