Patent application number | Description | Published |
20090231447 | APPARATUS AND METHOD FOR GENERATING PANORAMA IMAGES AND APPARATUS AND METHOD FOR OBJECT-TRACKING USING THE SAME - Provided are an apparatus and method for generating panorama images and an apparatus and method for tracking an object using the same. The apparatus for generating panorama images estimates regional motion vectors with respect to respective lower regions set in an image frame, determines a frame motion vector by using the regional motion vectors based on a codebook storing sets of normalized regional motion vectors corresponding to a camera's motion and then accumulates motion mediating variables computed with respect to respective continuous image frames to determine an overlapping region, and matches the overlapping regions to generate a panorama image. The apparatus for tracking an object sets the panorama image generated by the apparatus for generating panorama images as a background image, and determines an object region by averaging pixel value difference values between pixels that constitute a captured input image and corresponding pixels in the panorama image. Regional motion vectors are estimated by using the coordinate of a pixel selected in lower regions, and thus a computing process can be simplified and a process speed can be increased. In addition, effects of wrongly estimated regional motion vectors can be minimized by using a codebook. Furthermore, noises are minimized and an object can be accurately extracted by using averaged pixel value difference values. | 09-17-2009 |
20110141322 | Image restoration device and image restoration method - An image restoration method includes receiving an externally input image signal, generating a filtered image signal by filtering the input image signal, and generating a restored image signal by calculating a weighted average of the input image signal and the filtered image signal. Such a method may be implemented using an image restoration device including an image filtering unit adapted generated the filtered image signal, and an image mixing unit adapted to generate the restored image signal. More particularly, the restored image signal may be generated using weighting factors calculated based on the input image signal, by calculating a local variance of pixels in the input image signal, and calculating the weighting factor for each of the pixels based on the local variance of each of the pixels. | 06-16-2011 |
20110222764 | IMAGE RESTORATION DEVICE, IMAGE RESTORATION METHOD AND IMAGE RESTORATION SYSTEM - An image restoration device, an image restoration method, and an image restoration system are provided. The image restoration device includes a point spread function estimation unit, and an image restoration filter unit. The point spread function estimation unit receives an image signal and estimates a Point Spread Function (PSF) from the received image signal. The image restoration filter unit receives the image signal and the PSF, generates an image restoration filter coefficient from the PSF, and filters the image signal according to the image restoration filter coefficient to output the filtered image signal. | 09-15-2011 |
20110234610 | Image Processing Apparatus and Image Processing Methods - Provided are an image processing apparatus and an image processing method. The image processing apparatus includes a point spread function (PSF) pattern generation unit for generating a PSF pattern in which a plurality of PSFs are located in a plurality of lines of the PSF pattern; a PSF estimation unit for estimating PSFs of an out-of-focus input image from step responses of the plurality of lines of the PSF pattern with respect to an edge of the out-of-focus input image; and an image restoration unit for restoring the out-of-focus input image to a focused restored image using the estimated PSF. | 09-29-2011 |
20120093399 | APPARATUS AND METHOD FOR ENHANCING IMAGE QUALITY OF IMAGE CAPTURED BY USING MULTIPLE COLOR-FILTER APERTURE - Provided are an apparatus and method for enhancing image quality of an input image captured by an image capturing device having an aperture with a plurality of openings employing different color filters. The image quality enhancing apparatus includes an ROI (region of interest) classifying unit classifying ROIs according to distances from the image capturing device of a captured input image by using a cluster-based image segmentation algorithm, a color channel registering unit determining motion vectors of color channels corresponding to the respective ROIs by analyzing a high frequency component of image data included in the ROIs, and moving the color channels based on the determined motion vectors to obtain a registered image of the respective ROIs, and an image fusing unit fusing the registered images of the respective ROIs to obtain a fused image. | 04-19-2012 |
20120113227 | APPARATUS AND METHOD FOR GENERATING A FULLY FOCUSED IMAGE BY USING A CAMERA EQUIPPED WITH A MULTI-COLOR FILTER APERTURE - Provided are an apparatus and method for generating a fully focused image. A depth map generation unit generates a depth map of an input image obtained by a multiple color filter aperture (MCA) camera. A channel shifting & alignment unit extractes subimages which include objects with same focal distance based on the depth map, and performing color channel alignment and removing out-of-focus blurs for each subimages obtained from the depth map. An image fusing unit fuses the subimages to generate a fully focused image. | 05-10-2012 |
20120189195 | APPARATUS AND METHOD FOR ALIGNING COLOR CHANNELS - Provided are an apparatus and method for aligning color channels on the basis of depth information on an image taken by an imaging device equipped with a multiple color-filter aperture (MCA). An image divider generates a binary image including edge information on an original image, and generates a label map including a plurality of regions of interest (ROIs) respectively corresponding to a plurality of objects included in the original image. A shifting vector estimator estimates color shifting vectors (CSVs) indicating shift directions and distances of color channels of the original image according to the respective ROIs. A channel matching unit obtains a plurality of matched images corresponding to the respective ROIs included in the label map by shifting the color channels according to the respective CSVs, and generates a multi-focus image by combining the matched images. | 07-26-2012 |
20140016878 | METHOD FOR DIRECTIONAL ADAPTIVE IMAGE INTERPOLATION AND AN ELECTRONIC DEVICE THEREOF - A method of operating an electronic device for image interpolation is provided. The method includes estimating a direction of pixels using a plurality of filters respectively corresponding to a plurality of angles, correcting the direction of the pixels using a direction of neighboring pixels, determining whether the direction estimation has an error according to a direction distribution of the neighboring pixels, and when the direction estimation is determined to have error, correcting the error in the direction estimation. | 01-16-2014 |
20150029312 | APPARATUS AND METHOD FOR DETECTING OBJECT AUTOMATICALLY AND ESTIMATING DEPTH INFORMATION OF IMAGE CAPTURED BY IMAGING DEVICE HAVING MULTIPLE COLOR-FILTER APERTURE - Disclosed are an apparatus and a method for detecting an object automatically and estimating depth information of an image captured by an imaging device having a multiple color-filter aperture. A background generation unit detects a movement from a current image frame among a plurality of continuous image frames captured by an MCA camera to generate a background image frame corresponding to the current image frame. An object detection unit detects an object region included in the current image frame based on differentiation between a plurality of color channels of the current image frame and a plurality of color channels of the background image frame. According to an embodiment of the present invention, it is possible to automatically detect an object by a repetitively updated background image frame and to accurately estimate object information by separately detecting an object for each color channel by considering a property of the MCA camera. | 01-29-2015 |