Patent application number | Description | Published |
20090129679 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER-READABLE MEDIUM - A target region extracting unit configured to extract a target region used in acquiring feature information from each frame of a moving image includes a plurality of image analyzing units (first and second image analyzing units) configured to execute image analyzing processes in parallel for extraction of the target regions on each frame of the moving image in different manners, and an information transmission processing unit configured to execute a process of transmitting result information of the image analyzing processes among the plurality of image analyzing units. | 05-21-2009 |
20090175528 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER PROGRAM - An image processing apparatus is provided. The apparatus includes a setting unit configured to set a radiation exposure condition; a radiation generation unit configured to generate a radiation beam according to the radiation exposure condition; a two-dimensional radiation sensor configured to transform the reached radiation beam into a radiation image data and output the radiation image data; a storage unit configured to store the radiation image data; a detecting unit configured to detect a scattered radiation fluctuation in the reached radiation beam based on a comparison of two radiation image data with different radiation exposure condition, where the two radiation image data are selected within the plurality of radiation image data stored in the storage unit; and an image processing unit configured to extract a outline of a region of interest from the radiation image data based on the scattered radiation fluctuation detected by the detecting unit. | 07-09-2009 |
20090279663 | X-RAY RADIOSCOPY DEVICE, MOVING PICTURE PROCESSING METHOD, PROGRAM, AND STORAGE MEDIUM - An X-ray radioscopy device comprises: an image capturing unit that captures a moving image of an object that has been irradiated by X-rays; an analysis processing unit that performs different analysis processes in parallel on each frame that makes up the moving image and extracts, from each frame, a region of interest defined as a portion of the object subject to radioscopy by the X-ray irradiation; and a selection unit that performs an evaluation operation on the multiple regions of interest extracted based on the different analysis processes, and based on the result of the evaluation operation, selects and outputs a single region of interest from the multiple regions of interest extracted by the analysis processing unit. | 11-12-2009 |
20100296627 | IMAGING APPARATUS, CONTROL METHOD THEREOF, AND PROGRAM - An imaging apparatus includes: a plurality of photoelectric converters each adapted to perform photoelectric conversion in response to receiving light, and output an electrical signal; a holding unit adapted to hold, for each of the plurality of photoelectric converters, a correction value for correcting photoelectric conversion characteristics of the photoelectric converter; and a correction unit adapted to correct each of the electrical signals output by the plurality of photoelectric converters, using the corresponding correction values, wherein the correction unit corrects each of the electrical signals based on the correction values, which have been increased or decreased in accordance with a prescribed pixel arrangement pattern, and the imaging apparatus comprises a determination unit adapted to evaluate correction results that are based on the correction values increased or decreased in accordance with the prescribed pattern, and determine a presence of a correction error in the correction values held in the holding unit. | 11-25-2010 |
20110226956 | RADIATION IMAGING APPARATUS, RADIATION IMAGING METHOD, AND STORAGE MEDIUM - A radiation imaging apparatus comprises: an imaging unit to capture a moving image of an object irradiated with radiation; a first extraction unit to extract an object area where an object exists from an exposure field region of radiation in a first frame image of the moving image; a second extraction unit to extract a region of interest as a target for calculation of a first feature amount indicating a feature of an image from a region corresponding to the object area in a second frame image following the first frame image; a first calculation unit to calculate the first feature amount of a region of interest in a third frame image following the second frame image from a region corresponding to the region of interest in the third frame image; and a control unit to control a radiation generating unit based on the first feature amount. | 09-22-2011 |
20120230541 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM - An image processing apparatus includes a first acquisition unit configured to obtain identification information for a plurality of blocks of an image, a second acquisition unit configured to obtain information to be used for image processing from a pixel value of a region of the image determined based on the identification information, and an image processing unit configured to perform image processing of the image based on the information obtained by the second acquisition unit. | 09-13-2012 |
20120250974 | X-RAY IMAGE PROCESSING APPARATUS, X-RAY IMAGE PROCESSING METHOD, AND STORAGE MEDIUM FOR COMPUTER PROGRAM - An inter-image subtracting unit acquires a subtraction image by performing subtraction processing among a plurality of X-ray images that are obtained when an image of an object is captured at different times. A predetermined-region extracting unit extracts a predetermined region from one of the plurality of X-ray images. A region extracting unit extracts a region based on a contrast-agent injection region from a region of the subtraction image corresponding to the predetermined region. | 10-04-2012 |
20120257809 | X-RAY IMAGE PROCESSING APPARATUS, X-RAY IMAGE PROCESSING METHOD, AND STORAGE MEDIUM FOR COMPUTER PROGRAM - A feature value is extracted from a boundary region that is located between a contrast-agent injection region and a background region in a subtraction image, a gradation curve depending on the feature value is generated, and gradation processing is performed by applying the gradation curve to the subtraction image. | 10-11-2012 |
20130294674 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD AND STORAGE MEDIUM - An image processing apparatus includes: a subtraction unit that generates subtraction images constituted by a plurality of frames from X-ray images of an object acquired before and after injecting a radiopaque dye; an evaluation unit that calculates evaluation values indicating states of the injection of the radiopaque dye for the frames constituting the subtraction images; and a selection unit that selects at least one of the frames constituting the subtraction images using the evaluation values and outputs the selected frame as a reference image. | 11-07-2013 |
20140126799 | IMAGE PROCESSING APPARATUS, CONTROL METHOD THEREOF AND COMPUTER-READABLE STORAGE MEDIUM - A subtraction image is generated by performing subtraction between a mask image serving as a radiation image obtained by capturing an object, at least of a specific region of which does not include contrast medium, and a live image serving as a radiation image obtained by capturing the object which includes the contrast medium. The emphasis degree serving as the degree of emphasis processing for the subtraction image is determined based on at least either the mask image or live image. The emphasis processing is performed for the subtraction image based on the emphasis degree. | 05-08-2014 |