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公开(公告)号：US20180330478A1
公开(公告)日：2018-11-15
申请号：US15942789
申请日：2018-04-02
Applicant: FotoNation Limited
Inventor： Piotr STEC
CPC classification number: G06T5/003 , G06T7/20 , G06T2207/20201 , H04N5/23251 , H04N5/23254 , H04N5/23258 , H04N5/23267 , H04N5/2329
Abstract: A method of correcting an image obtained by an image acquisition device includes obtaining successive measurements, Gn, of device movement during exposure of each row of an image. An integration range, idx, is selected in proportion to an exposure time, te, for each row of the image. Accumulated measurements, Cn, of device movement for each row of an image are averaged across the integration range to provide successive filtered measurements, G, of device movement during exposure of each row of an image. The image is corrected for device movement using the filtered measurements G.
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公开(公告)号：US10055816B2
公开(公告)日：2018-08-21
申请号：US15711951
申请日：2017-09-21
Applicant: GoPro, Inc.
Inventor： Yajie Sun , Timothy Macmillan , Elizabeth Torres Edwards , Sumit Chawla
IPC: G06T7/13 , G06T3/40 , H04N17/00 , G06K9/52 , G06K9/62 , G06T5/00 , G06T7/33 , G06T7/80 , H04N5/232 , H04N5/349 , H04N5/374 , H04N13/02 , G06K9/46 , H04N13/239 , H04N13/246 , H04N13/271 , H04N13/296 , H04N13/00
CPC classification number: G06T3/4038 , G06K9/4604 , G06K9/52 , G06K9/6201 , G06T5/002 , G06T7/13 , G06T7/337 , G06T7/80 , G06T7/85 , H04N5/23229 , H04N5/2329 , H04N5/349 , H04N5/374 , H04N13/239 , H04N13/246 , H04N13/271 , H04N13/296 , H04N17/002 , H04N2013/0081
Abstract: A pair of cameras having an overlapping field of view is aligned based on images captured by image sensors of the pair of cameras. A pixel shift is identified between the images. Based on the identified pixel shift, a calibration is applied to one or both of the pair of cameras. To determine the pixel shift, the camera applies correlation methods including edge matching. Calibrating the pair of cameras may include adjusting a read window on an image sensor. The pixel shift can also be used to determine a time lag, which can be used to synchronize subsequent image captures.
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公开(公告)号：US20180192035A1
公开(公告)日：2018-07-05
申请号：US15621716
申请日：2017-06-13
Applicant: QUALCOMM Incorporated
Inventor： Onkar Jayant Dabeer , Gerhard Reitmayr , Ravi Teja Sukhavasi , Kiran Somasundaram , Radhika Dilip Gowaikar
CPC classification number: H04N13/264 , G06F16/86 , G06K9/00798 , G06K9/00818 , G06T3/4007 , G06T5/002 , G06T5/50 , G06T7/73 , G06T2207/10016 , G06T2207/20201 , H04N5/2329 , H04N7/18 , H04N7/181
Abstract: A method performed by an apparatus is described. The method includes receiving a set of image frames including at least one object. The method also includes receiving a camera position for each image frame. The method further includes associating the at least one object between image frames based on one or more object points and the received camera position for each image frame to produce two-dimensional (2D) object location data. The method additionally includes estimating three-dimensional (3D) pose data of the at least one object based on the 2D object location data. The method also includes refining the 3D pose data based on a shape constraint.
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公开(公告)号：US09998668B2
公开(公告)日：2018-06-12
申请号：US14547174
申请日：2014-11-19
Inventor： Mikio Sakurai
IPC: H04N5/232
CPC classification number: H04N5/23287 , H04N5/23258 , H04N5/2329
Abstract: Provided is an imaging apparatus which corrects uneven exposure caused when a sensor-shift image stabilization and an electronic front curtain reset are used concurrently. The imaging apparatus includes: a camera shake detector configured to detect a camera shake; an imaging device configured to capture e a subject image; an image stabilizer configured to move the imaging device in a plane perpendicular to an optical axis; an electronic front curtain configured to reset electric charges accumulated in the imaging device; a mechanical shutter configured to switch between blocking and passing of a subject image to be collected onto the imaging device; and an image stabilization controller configured to produce an image stabilization signal from the camera shake detected by the camera shake detector and configured to control the image stabilizer. The image stabilization controller controls the imaging device to move to a specified position and then controls the electronic front curtain to operate in response to the shooting instruction.
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公开(公告)号：US09930258B2
公开(公告)日：2018-03-27
申请号：US15177860
申请日：2016-06-09
Applicant: Sony Corporation
Inventor： Yukinao Kenjo
CPC classification number: H04N5/23267 , H04N5/23254 , H04N5/2329 , H04N5/374
Abstract: An image processing device is provided. The image processing device includes a determination unit configured to determine a scheme of capturing a pixel value of an imaging element at a time of imaging operation of moving image contents using a feature amount which is obtained from a plurality of regions in a frame which configures the moving image contents; and a correction unit configured to perform a correction of focal plane distortion with respect to the moving image contents based on the determined capturing scheme. An image processing system is also provided.
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Patent Agency Ranking
公开(公告)号：US09906724B2
公开(公告)日：2018-02-27
申请号：US15251271
申请日：2016-08-30
Applicant: AXIS AB
Inventor： Dennis Nilsson , Johan Nystrom , Bjorn Benderius
IPC: H04N5/232
CPC classification number: H04N5/23254 , H04N5/23212 , H04N5/23258 , H04N5/2329 , H04N5/23296
Abstract: The present invention relates generally to auto focus algorithms for setting a focus of a camera. More specifically, the present invention relates to a method (600) and device for setting a focus of a camera wherein a camera motion level of the camera is continuously measured (S604) during the read-out of pixel data by a rolling shutter image sensor and wherein the auto focus algorithm uses weighted focus measures which are calculated (S612) using the continuously measured camera motion levels.
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公开(公告)号：US20180050264A1
公开(公告)日：2018-02-22
申请号：US15554426
申请日：2015-10-27
Inventor： JIE HE , JINGWEN DAI , TAO ZHU , CONGLING WAN
CPC classification number: A63F13/213 , A63F13/24 , A63F13/25 , A63F13/42 , A63F13/428 , G06T7/262 , G06T7/73 , G06T2207/10152 , G06T2207/30204 , G06T2207/30244 , H04N5/23258 , H04N5/2329
Abstract: A method for identifying one or more light sources may include capturing, via an imaging device, an image, the imaging device having a rolling shutter. The method may also include receiving, via at least one processor, the captured image, and detecting, via the at least one processor, whether the image includes a set of alternating stripes. The method may further include measuring, via the at least one processor, if the image includes a set of alternating stripes, a width of at least one stripe of the set of alternating stripes included in the captured image, and identifying, via the at least one processor, a light source causing the set of alternating stripes based on the measured width.
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公开(公告)号：US09897792B2
公开(公告)日：2018-02-20
申请号：US14437174
申请日：2013-11-04
Applicant: L&T TECHNOLOGY SERVICES LIMITED
Inventor： Rabi Rout , Vajendra Desai , Harikrishnan Ramaraju , Gineesh Sukumaran , Sistu Ganesh , Devvrata Priyadarshi , Eldho Abraham , Saurabh Mishra , Sudipta Kumar Sahoo , Nivedita Tripathi , Siddhartha Goutham , Kunal Gauraw
CPC classification number: G02B21/367 , G02B27/0081 , G06T5/50 , G06T2207/10052 , G06T2207/20221 , H04N1/40012 , H04N5/2329
Abstract: The invention relates to an image processing method and system for constructing composite image with extended depth of field. The composite image may be constructed from a plurality of source images of a scene stored in an image stack. The method includes aligning the images in the image stack such that every image in the image stack is aligned with other images in the stack, performing illumination and color correction on the aligned images in the image stack, generating an energy matrix for each pixel of each illumination and color corrected image in the image stack by computing energy content for each pixel, generating a raw index map that contains the location of every pixels having maximum energy level among all the images in the image stack, generating degree of defocus ma and constructing the composite image.
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公开(公告)号：US20170310901A1
公开(公告)日：2017-10-26
申请号：US15134294
申请日：2016-04-20
Applicant: Samsung Electronics Co., Ltd
Inventor： Hamid Rahim Sheikh , Ibrahim Pekkucuksen , John Glotzbach
CPC classification number: H04N5/23296 , G06T3/0093 , G06T3/4007 , H04N5/144 , H04N5/23216 , H04N5/23248 , H04N5/23251 , H04N5/23254 , H04N5/23258 , H04N5/23267 , H04N5/2329
Abstract: The method includes in order to generate a composite image: identifying, in the frame of a video stream captured by a camera, a motion characteristic associated with moving objects in a scene while the camera captured a sliding window of the video stream. The method includes for a plurality of frames in the sliding window: controlling, by the processing circuitry, a weight of blending of the frame based on the identified motion characteristic to enable the composite image to be generated according to the controlled weights of blending of the plurality of frames in the sliding window.
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公开(公告)号：US09792667B2
公开(公告)日：2017-10-17
申请号：US15345002
申请日：2016-11-07
Applicant: GoPro, Inc.
Inventor： Yajie Sun , Timothy Macmillan , Elizabeth Torres Edwards , Sumit Chawla
IPC: G06T3/40 , H04N17/00 , H04N5/232 , G06K9/46 , G06K9/62 , G06K9/52 , H04N5/349 , H04N5/374 , H04N13/02 , G06T7/80 , G06T5/00 , G06T7/33 , G06T7/13 , H04N13/00
CPC classification number: G06T3/4038 , G06K9/4604 , G06K9/52 , G06K9/6201 , G06T5/002 , G06T7/13 , G06T7/337 , G06T7/80 , G06T7/85 , H04N5/23229 , H04N5/2329 , H04N5/349 , H04N5/374 , H04N13/239 , H04N13/246 , H04N13/271 , H04N13/296 , H04N17/002 , H04N2013/0081
Abstract: A pair of cameras having an overlapping field of view is aligned based on images captured by image sensors of the pair of cameras. A pixel shift is identified between the images. Based on the identified pixel shift, a calibration is applied to one or both of the pair of cameras. To determine the pixel shift, the camera applies correlation methods including edge matching. Calibrating the pair of cameras may include adjusting a read window on an image sensor. The pixel shift can also be used to determine a time lag, which can be used to synchronize subsequent image captures.
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