| Patent application number | Description | Published |
|---|
| 20080285809 | Photographic subject tracking method, computer program product and photographic subject tracking device - A photographic subject tracking method comprises calculating similarity levels of images input sequentially to a template image, determining a photographic subject position in each of the input images based upon the similarity levels, tracking the photographic subject position through the input images, judging whether reliability of the similarity level calculated for the photographic subject position is high or low, and changing ways of at least one of calculating the similarity levels, determining the photographic subject position and tracking the photographic subject position, if the reliability of the similarity level is judged to be low. | 11-20-2008 |
| 20090052741 | Subject tracking method, subject tracking device, and computer program product - A subject tracking method, includes: calculating a similarity factor indicating a level of similarity between an image contained in a search frame at each search frame position and a template image by shifting the search frame within a search target area set in each of individual frames of input images input in time sequence; determining a position of the search frame for which a highest similarity factor value has been calculated, within each input image to be a position (subject position) at which a subject is present; tracking the subject position thus determined through the individual frames of input images; calculating a difference between a highest similarity factor value and a second highest similarity factor value; and setting the search target area for a next frame based upon the calculated difference. | 02-26-2009 |
| 20090115754 | IMAGE DISPLAY APPARATUS USING THIN-FILM TRANSISTORS - There are provided a display apparatus and a display method, with which compressed image data that is to be decompressed can be transmitted to the display apparatus in an environment in which a transmission capacity is not always secured, and good image display is realized. An example of the display apparatus is an active matrix display apparatus formed by using thin-film transistors formed on an insulating substrate. In the active matrix display apparatus, a circuit that receives an image data signal from an external system via a non-contact transmission path and amplifies the image data signal, a circuit that processes the image data signal, and a memory circuit that stores the processed image data are integrated on the insulating substrate. | 05-07-2009 |
| 20090141936 | Object-Tracking Computer Program Product, Object-Tracking Device, and Camera - A computer performs following steps according to a program for tracking an object. Template matching of each frame of an input image to a plurality of template images is performed, a template image having a highest similarity with an image within a predetermined region of the input image is selected as a selected template among the plurality of template images and the predetermined region of the input image is extracted as a matched region. With reference to an image within the matched region thus extracted, by tracking motion between frames, motion of an object is tracked between the images of the plurality of frames. It is determined as to whether or not a result of template matching satisfies an update condition for updating the plurality of template images. In a case that the update condition is determined to be satisfied, at least one of the plurality of template images. | 06-04-2009 |
| 20090141937 | Subject Extracting Method, Subject Tracking Method, Image Synthesizing Method, Computer Program for Extracting Subject, Computer Program for Tracking Subject, Computer Program for Synthesizing Images, Subject Extracting Device, Subject Tracking Device, and Image Synthesizing Device - A binary mask image for extracting subject is generated by binarizing an image after image-processing (processed image) with a predefined threshold value. Based on an image before image-processing (pre-processing image) and the binary mask image for extracting image, a subject image in which only a subject included in the pre-processing image is extracted is generated by eliminating a background region from the pre-processing image. | 06-04-2009 |
| 20090208115 | Image Combining Method, Image Combining Program, Image Combining Apparatus, Template Extraction Method and Template Extraction Program - An image combining method for executing a template matching process to specify matching positions in a plurality of images with image patterns therein substantially matching one another and combining the plurality of images so that the matching positions are aligned with one another includes extraction processing through which a plurality of areas (a plurality of templates) to be used as templates in the template matching process are extracted from a reference image. | 08-20-2009 |
| 20090322894 | Computer program product for photographic subject tracking, photographic subject tracking device, and camera - By a program stored in a computer program product for tracking a photographic subject, a computer executes a template matching step of performing template matching upon each frame of an input image with each of a plurality of template images and extracting a plurality of regions whose similarities with each of the template images are the highest from within the input image, a classification step of classifying the extracted regions into regions that are to be used for specifying a photographic subject position within the input image and another region, on the basis of the mutual distances between the extracted regions within the input image, a specification step of specifying the photographic subject position, on the basis of the positions of the regions that have been classified by the classification step as the regions that are to be used for specifying the photographic subject position within the input image, and a photographic subject tracking step of tracking the movement of the photographic subject over the image consisting of a plurality of frames, by tracking the photographic subject position between frames. | 12-31-2009 |
| 20100007758 | Image matching device and camera - An image matching device includes: a dividing unit that divides a target image, contained in a search window set within an input image constituted with pixels each having a luminance component and a chrominance component, and a template image constituted with pixels each having the luminance component and the chrominance component, each into a plurality of divided areas; a representative value calculation unit that calculates a luminance component representative value and a chrominance component representative value in correspondence to each of the divided areas; a normalizing unit that normalizes the luminance component representative value having been calculated in correspondence to each divided area; and a template matching processing unit that executes template matching processing based upon the normalized luminance component representative value and the chrominance component representative value corresponding to each of the divided areas in the template image, and upon the normalized luminance component representative value and the chrominance component representative value corresponding to each of the divided areas in the target image. | 01-14-2010 |
| 20100080420 | Image classification program, image classification device, and electronic camera - An image classification program that is executed by a computer includes a first processing step of calculating feature values on the basis of the pixel densities of images, a second processing step of performing calculating in a space defined by the feature values, and a third processing step of grouping images that correspond to feature values that have been divided by the clustering. | 04-01-2010 |
| 20100091125 | Template matching device, camera with template matching device, and program for allowing computer to carry out template matching - A template-matching apparatus includes a first calculating unit calculating a first characteristic amount from the image information of a template image, and extracting unit extracting a partial image, a second calculating unit calculating for image information of the partial image a second characteristic amount, a third calculating unit calculating a residual amount from the image information of the template image and the partial image, a first computing unit finding a first degree of similarity, a second computing unit that finds a second degree of similarity based on the residual amount, a third computing unit finding a third degree of similarity based on the first and second degree of similarity, and a specifying unit specifying a matching position, thereby specifying the matching position with good accuracy even if the input image is observed with some geometrical change. | 04-15-2010 |
| 20100165113 | SUBJECT TRACKING COMPUTER PROGRAM PRODUCT, SUBJECT TRACKING DEVICE AND CAMERA - A computer performs a template-matching step of template-matching an input image with a plurality of template images with different magnifications by a program stored in an object racking computer program product, selecting the template image with the highest similarity to an image in a predetermined region of the input image among the plurality of template images and extracting the predetermined region of the input image as a matched region, a determination step of determining whether or not the matching results of the template-matching step satisfy update conditions for updating the plurality of template images, and an updating step of updating at least one of the plurality of template images when the update conditions are determined to be satisfied by the determination step. | 07-01-2010 |
| 20100214407 | CAMERA - A camera includes: an imaging unit that captures an image of a subject and obtains image data; a similarity level calculation unit that calculates a similarity level indicating a level of similarity of an image within a search frame to a template image in correspondence to each search frame position assumed as the search frame is shifted within a search target area set in each of frames input in time series from the imaging unit; a subject position determining unit that determines as a subject position a position assumed by the search frame, at which the similarity level is highest, in correspondence to each frame; a subject tracking unit that tracks the subject position from frame to frame; and a rangefinding unit that measures a distance (subject distance) from the camera to the subject, wherein: the similarity level calculation unit calculates the similarity level by factoring in rangefinding results. | 08-26-2010 |
| 20100277609 | ELECTRONIC CAMERA - An electronic camera, includes an image sensor, a rangefinding means, an arithmetic operation means for calculating a characteristic quantities based upon at least either pixel density in an image obtained via the image sensor or rangefinding information obtained via the rangefinding means, a judgment means for judging a photographic scene based upon characteristic quantities calculated by the arithmetic operation means, and a control means for selecting camera settings in correspondence to the photographic scene having been judged. | 11-04-2010 |
| 20110007947 | SUBJECT POSITION DETERMINATION METHOD, PROGRAM PRODUCT FOR DETERMINING SUBJECT POSITION, AND CAMERA - A subject position determination method includes: generating a plurality of binarized images of a target image based upon color information or brightness information of the target image; calculating an evaluation value used to determine a subject position in the target image for each of the plurality of binarized images; and determining a subject position in the target image based upon the evaluation value. | 01-13-2011 |
| 20110090375 | PHOTOMETRIC DEVICE, IMAGING DEVICE, AND CAMERA - A photometric device includes: an imaging unit that captures an image formed by an optical system, with a marker capable of switching between display and non-display disposed in a light path of the optical system; and a correction unit that, based upon a difference between a first image captured by the imaging unit in a state where the marker is displayed and a second image captured by the imaging unit in a state where the marker is not displayed, performs a correction of a third image that is different from the first image and the second image. | 04-21-2011 |
| 20110109759 | SUBJECT TRACKING PROGRAM AND CAMERA - A computer-readable computer program product contains a computer-executable subject tracking program in order to execute frame-to-frame subject tracking for a plurality of frames input in time series. The subject tracking program includes: an estimation procedure estimating a subject position within each frame by executing template matching processing for each of a plurality of partial areas assuming random positions within the frame; an identification procedure identifying a subject position within the frame by executing template matching processing for an estimated subject area containing the subject position having been estimated through the estimation procedure; a subject framing border display procedure displaying a subject framing border at the subject position having been identified through the identification procedure; and a tracking procedure tracking the subject position having been identified through the identification procedure from one frame to another through the plurality of frames. | 05-12-2011 |
