-
公开(公告)号：US11842495B2
公开(公告)日：2023-12-12
申请号：US17689396
申请日：2022-03-08
发明人： Agastya Kalra , Vage Taamazyan , Supreeth Krishna Rao , Kartik Venkataraman , Ramesh Raskar , Achuta Kadambi
IPC分类号： G06T7/11 , B25J9/16 , G05B13/02 , G06F18/214 , G06F18/25 , G06N3/045 , G06V10/82 , G06V10/44 , G06V10/60 , G06V10/147
CPC分类号： G06T7/11 , B25J9/1697 , G05B13/027 , G06F18/214 , G06F18/253 , G06N3/045 , G06V10/147 , G06V10/454 , G06V10/60 , G06V10/82 , G06T2207/10024 , G06T2207/20081 , G06T2207/20084
摘要： A computer-implemented method for computing a prediction on images of a scene includes: receiving one or more polarization raw frames of a scene, the polarization raw frames being captured with a polarizing filter at a different linear polarization angle; extracting one or more first tensors in one or more polarization representation spaces from the polarization raw frames; and computing a prediction regarding one or more optically challenging objects in the scene based on the one or more first tensors in the one or more polarization representation spaces.
-
公开(公告)号：US12067746B2
公开(公告)日：2024-08-20
申请号：US17314929
申请日：2021-05-07
发明人： Vage Taamazyan , Guy Michael Stoppi , Bradley Craig Anderson Brown , Agastya Kalra , Achuta Kadambi , Kartik Venkataraman
CPC分类号： G06T7/75 , B25J9/1697 , B25J13/08 , G05B19/4155 , G06T7/269 , G06T7/55 , G05B2219/50391 , G06T2207/10024
摘要： A method for estimating a pose of an object includes: receiving, by a processor, an observed image depicting the object from a viewpoint; computing, by the processor, an instance segmentation map identifying a class of the object depicted in the observed image; loading, by the processor, a 3-D model corresponding to the class of the object; computing, by the processor, a rendered image of the 3-D model in accordance with an initial pose estimate of the object and the viewpoint of the observed image; computing, by the processor, a plurality of dense image-to-object correspondences between the observed image of the object and the 3-D model based on the observed image and the rendered image; and computing, by the processor, the pose of the object based on the dense image-to-object correspondences.
-
公开(公告)号：US12020455B2
公开(公告)日：2024-06-25
申请号：US17198094
申请日：2021-03-10
CPC分类号： G06T7/80 , H04N9/646 , G06T2207/10141 , G06T2207/20084 , G06T2207/20208
摘要： Systems and method for expanding a dynamic range associated with an image are disclosed. The method includes capturing an image of a scene via an imaging device using a single exposure. The image of the scene includes a plurality of polarization images corresponding to different angles of polarization, and each of the polarization images comprise a plurality of color channels. The method further includes determining a criterion for each of the plurality of color channels; selecting one color channel of the plurality of color channels based on determining of the criterion; generating a reconstructed image irradiance for the one color channel based on pixels in two or more of the plurality of polarization images obtained for the one color channel; and outputting a reconstructed image with the reconstructed image irradiance.
-
公开(公告)号：US11689813B2
公开(公告)日：2023-06-27
申请号：US17365511
申请日：2021-07-01
IPC分类号： H04N23/74 , H04N23/55 , G02B5/30 , H04N23/741
CPC分类号： H04N23/741 , G02B5/3025 , H04N23/55
摘要： According to one embodiment of the present disclosure, an imaging system includes: an image sensor including a plurality of subpixels grouped into a plurality of pixels; a polarization system including: a rotatable linear polarizer; and a polarizer mask including a plurality of polarizer filters, the polarizer filters being aligned with corresponding ones of the subpixels, the subpixels of a pixel of the plurality of pixels being located behind polarizer filters at different angles of linear polarization; and imaging optics configured to focus light from a scene onto the image sensor.
-
公开(公告)号：US20240221344A1
公开(公告)日：2024-07-04
申请号：US18395090
申请日：2023-12-22
发明人： Achuta Kadambi , Raghav Khanna , Agastya Kalra , Kerim Doruk Karinca , Tomas Gerlich , Vage Taamazyan
CPC分类号： G06V10/34 , G06T15/04 , G06V10/751 , G06V10/993
摘要： Methods, systems, and apparatus, including computer programs encoded on computer storage media, for detection of pixel correspondences in stereo imaging through the use of polarization data. One of the methods include: obtaining a first image from a first viewpoint of a stereo pair and a second image from a second viewpoint of the stereo pair; obtaining an angle of linear polarization (AOLP) map and a degree of linear polarization (DOLP) map having a field of view overlapping the first image and the second image; computing a surface normal map based on the AOLP map and the DOLP map; and detecting corresponding pixels between the first image and the second image by computing a disparity map that minimizes an energy function comprising a pixel matching cost term and a polarized smoothness regularization term computed based on pixels in a local neighborhood and based on the surface normal map.
-
公开(公告)号：US12008796B2
公开(公告)日：2024-06-11
申请号：US17588098
申请日：2022-01-28
IPC分类号： G06V10/82 , G06T7/73 , G06V10/44 , G06V10/764 , G06V10/774 , G06V20/64
CPC分类号： G06V10/454 , G06T7/75 , G06V10/764 , G06V10/774 , G06V10/82 , G06V20/647
摘要： A method for estimating a pose of an object includes: receiving a plurality of images of the object captured from multiple viewpoints with respect to the object; initializing a current pose of the object based on computing an initial estimated pose of the object from at least one of the plurality of images; predicting a plurality of 2-D keypoints associated with the object from each of the plurality of images; and computing an updated pose that minimizes a cost function based on a plurality of differences between the 2-D keypoints and a plurality of 3-D keypoints associated with a 3-D model of the object as arranged in accordance with the current pose, and as projected to each of the viewpoints.
-
公开(公告)号：US11954886B2
公开(公告)日：2024-04-09
申请号：US17232084
申请日：2021-04-15
IPC分类号： G06T7/73 , G06F18/214 , G06V10/40
CPC分类号： G06T7/75 , G06F18/214 , G06V10/40 , G06T2207/20081 , G06T2207/20084
摘要： A method for estimating a pose of a deformable object includes: receiving, by a processor, a plurality of images depicting the deformable object from multiple viewpoints; computing, by the processor, one or more object-level correspondences and a class of the deformable object depicted in the images; loading, by the processor, a 3-D model corresponding to the class of the deformable object; aligning, by the processor, the 3-D model to the deformable object depicted in the plurality of images to compute a six-degree of freedom (6-DoF) pose of the object; and outputting, by the processor, the 3-D model and the 6-DoF pose of the object.
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.01 秒)
