-
公开(公告)号：US20230247185A1
公开(公告)日：2023-08-03
申请号：US17589122
申请日：2022-01-31
CPC分类号： H04N9/3194 , H04N1/00087 , H04N1/6033
摘要： A method of calibrating a display system, the method comprising: displaying a test pattern including a plurality of blobs; detecting one or more base blobs in the displayed test pattern; identifying, based on the detected base blobs, patches of the test pattern, wherein each patch comprises one of the base blobs and a subset of additional blobs detected in the displayed test pattern; determining a patch location for at least one patch within the test pattern based on the subset of the additional blobs in the patch to determine a blob location for at least one detected blob; determining a calibration parameter for the display system based on the blob location and a detected attribute of the at least one detected blob; and calibrating the projector using the calibration parameter.
-
公开(公告)号：US20230319246A1
公开(公告)日：2023-10-05
申请号：US18206219
申请日：2023-06-06
CPC分类号： H04N9/3194 , H04N1/6033 , H04N1/00087 , G09G3/006
摘要： A method of calibrating a display system, the method comprising: displaying a test pattern including a plurality of blobs; detecting one or more base blobs in the displayed test pattern; identifying, based on the detected base blobs, patches of the test pattern, wherein each patch comprises one of the base blobs and a subset of additional blobs detected in the displayed test pattern; determining a patch location for at least one patch within the test pattern based on the subset of the additional blobs in the patch to determine a blob location for at least one detected blob; determining a calibration parameter for the display system based on the blob location and a detected attribute of the at least one detected blob; and calibrating the projector using the calibration parameter.
-
公开(公告)号：US11711500B1
公开(公告)日：2023-07-25
申请号：US17589122
申请日：2022-01-31
CPC分类号： H04N9/3194 , H04N1/00087 , H04N1/6033 , G09G3/006 , H04N17/00 , H04N17/002 , H04N17/02
摘要： A method of calibrating a display system, the method comprising: displaying a test pattern including a plurality of blobs; detecting one or more base blobs in the displayed test pattern; identifying, based on the detected base blobs, patches of the test pattern, wherein each patch comprises one of the base blobs and a subset of additional blobs detected in the displayed test pattern; determining a patch location for at least one patch within the test pattern based on the subset of the additional blobs in the patch to determine a blob location for at least one detected blob; determining a calibration parameter for the display system based on the blob location and a detected attribute of the at least one detected blob; and calibrating the projector using the calibration parameter.
-
4.发明申请公开(公告)号：US20200252591A1
公开(公告)日：2020-08-06
申请号：US16854227
申请日：2020-04-21
发明人： Matthew Post , Mark Lamm
IPC分类号： H04N9/31
摘要： A device, system and method for photometric compensation of images provided by a display device. A display device is controlled to provide colors, the display device configured to provide images according to the colors of the display device. A camera acquires respective images of the colors provided by the display device. A per-pixel correction function for modifying image data used by the display device to provide the images is determined based on: the respective images of each of the colors acquired by the camera corrected into the HVS model using a predetermined color-relationship between the camera and a Human Visual System (HVS) model for the colors of the display device. The display device is controlled to provide the images using the image data as corrected using the per-pixel correction function.
-
公开(公告)号：US09659371B2
公开(公告)日：2017-05-23
申请号：US14878267
申请日：2015-10-08
CPC分类号： G06T7/33 , G06K9/4604 , G06T5/006 , G06T7/80 , H04N9/3185 , H04N9/3194 , H04N17/002
摘要： A system and method for online projector-camera calibration from one or more images is provided. The system comprises: a projector, a camera, and a calibration device configured to: determine a map between pixels of each of a projector image and a camera image in fewer than one hundred percent of pixels of the projector image using feature extraction; determine an initial estimate of a fundamental matrix from the map; determine an initial guess of intrinsic properties of the projector and camera using one or more closed-form solutions; iteratively determine an error-function based on the map using the fundamental matrix while adding constraints on the intrinsic properties using the one or more closed-form solutions, and the initial estimate and guess as initial input; and, when the error-function reaches an acceptance value, determine intrinsic and extrinsic properties of the projector and the camera from current values of iterative estimates.
-
公开(公告)号：US20170103509A1
公开(公告)日：2017-04-13
申请号：US14878267
申请日：2015-10-08
CPC分类号： G06T7/33 , G06K9/4604 , G06T5/006 , G06T7/80 , H04N9/3185 , H04N9/3194 , H04N17/002
摘要： A system and method for online projector-camera calibration from one or more images is provided. The system comprises: a projector, a camera, and a calibration device configured to: determine a map between pixels of each of a projector image and a camera image in fewer than one hundred percent of pixels of the projector image using feature extraction; determine an initial estimate of a fundamental matrix from the map; determine an initial guess of intrinsic properties of the projector and camera using one or more closed-form solutions; iteratively determine an error-function based on the map using the fundamental matrix while adding constraints on the intrinsic properties using the one or more closed-form solutions, and the initial estimate and guess as initial input; and, when the error-function reaches an acceptance value, determine intrinsic and extrinsic properties of the projector and the camera from current values of iterative estimates.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.016 秒)
