-
Patent Agency Ranking
公开(公告)号：US20220138981A1
公开(公告)日：2022-05-05
申请号：US17087999
申请日：2020-11-03
Inventor： Simone B. Bortolami , Helen F. Webb
Abstract: Techniques are provided for image-based estimation of the orientation of an airborne platform. A methodology implementing the techniques according to an embodiment includes rotating an image, provided by a camera on the platform, by a selected rotation angle. The method also includes computing an intensity gradient image based on the rotated image. The method further includes extracting a left quarter segment and a right quarter segment of the intensity gradient image. The method further includes flipping one of the extracted segments about a vertical axis through that segment and comparing the non-flipped segment to the flipped segment to generate a matching score. The comparison may be based on a correlation between the flipped segment and the non-flipped segment. The process may be repeated for additional rotation angles and the rotation angle associated with the highest matching score is selected as the estimated orientation angle of the platform.
-
公开(公告)号：US20160217577A1
公开(公告)日：2016-07-28
申请号：US15004029
申请日：2016-01-22
Inventor： Victor T. Tom , Stephen P. Delmarco , Helen F. Webb
CPC classification number: G06K9/52 , G06T7/32 , G06T2200/28
Abstract: An image registration system and method for matching images having fundamentally different characteristics. One exemplary feature of the system and method includes the use of an enhanced phase correlation method combined with a coarse sensor model to hypothesize and match a custom match metric to determine a best solution. The system and method may be operated on a non-transitory computer-readable medium storing a plurality of instructions which when executed by one or more processors causes the one or more processors to perform the image registration method utilizing the enhanced phase correlation.
Abstract translation: 一种用于匹配具有根本不同特征的图像的图像配准系统和方法。 该系统和方法的一个示例性特征包括使用与粗糙传感器模型结合的增强相位相关方法来假设和匹配自定义匹配度量以确定最佳解决方案。 系统和方法可以在存储多个指令的非暂时计算机可读介质上操作，当多个指令执行时，一个或多个处理器使一个或多个处理器利用增强的相位相关来执行图像配准方法。
-
公开(公告)号：US20240428399A1
公开(公告)日：2024-12-26
申请号：US18337827
申请日：2023-06-20
Inventor： Tao Wang , Helen Vo , Helen F. Webb , Victor T. Tom
IPC: G06T7/00 , G06V10/44 , G06V10/774 , G06V10/82
Abstract: Hybrid MB/ML techniques for automated printed circuit board (PCB) defect detection. In one example, a PCB inspection system implements a hybrid solution using model based (MB) and machine learning (ML) technologies to detect possible defects in a PCB via an automated image capture device and processing methodology. The processing methodology fuses features from MB and ML at the latent representation. An autoencoder can be used to learn the fused data by training a neural network to produce a reconstructed image that can be compared to an original image to generate a reconstruction error value. The system produces an output indicating detection of a defect in one or more features of interest based on the reconstruction error value transgressing a threshold value.
-
公开(公告)号：US11508086B2
公开(公告)日：2022-11-22
申请号：US17087999
申请日：2020-11-03
Inventor： Simone B. Bortolami , Helen F. Webb
Abstract: Techniques are provided for image-based estimation of the orientation of an airborne platform. A methodology implementing the techniques according to an embodiment includes rotating an image, provided by a camera on the platform, by a selected rotation angle. The method also includes computing an intensity gradient image based on the rotated image. The method further includes extracting a left quarter segment and a right quarter segment of the intensity gradient image. The method further includes flipping one of the extracted segments about a vertical axis through that segment and comparing the non-flipped segment to the flipped segment to generate a matching score. The comparison may be based on a correlation between the flipped segment and the non-flipped segment. The process may be repeated for additional rotation angles and the rotation angle associated with the highest matching score is selected as the estimated orientation angle of the platform.
-
公开(公告)号：US10445616B2
公开(公告)日：2019-10-15
申请号：US15004029
申请日：2016-01-22
Inventor： Victor T. Tom , Stephen P. Delmarco , Helen F. Webb
Abstract: An image registration system and method for matching images having fundamentally different characteristics. One exemplary feature of the system and method includes the use of an enhanced phase correlation method combined with a coarse sensor model to hypothesize and match a custom match metric to determine a best solution. The system and method may be operated on a non-transitory computer-readable medium storing a plurality of instructions which when executed by one or more processors causes the one or more processors to perform the image registration method utilizing the enhanced phase correlation.
-
-
-
-
Search Results
5
records
(took 0.018 seconds)
