Naval Group has been granted a patent for a method that estimates movement between two images. The process involves determining an initialization displacement vector, utilizing an iterative algorithm to refine this vector, and incorporating data on the image capture device’s movement and parameters like angular opening, zoom factor, and resolution. GlobalData’s report on Naval Group gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Naval Group, Hydrogen fuel cells was a key innovation area identified from patents. Naval Group's grant share as of June 2024 was 66%. Grant share is based on the ratio of number of grants to total number of patents.
Method for estimating movement between two images
The patent US12020441B2 outlines a method and system for estimating the movement between two images captured by an image capture device. The method involves several steps, starting with the collection of data that defines each image. An initialization displacement vector is determined to characterize the displacement between the two images. An iterative algorithm is then implemented, which updates the displacement vector at each iteration based on an error function that minimizes the difference between one image and the transformed version of the other image. Additionally, the method collects information about the movement of the image capture device and various capture parameters, such as angular opening, zoom factor, and resolution. The initialization displacement vector is calculated by projecting the displacement between the images into the image plane, taking into account the collected movement information and capture parameters.
The patent also describes an electronic device designed to perform this method, which includes an input for collecting image data and determining the initialization displacement vector. This device is capable of implementing the iterative algorithm and collecting information about the movement of the image capture device and its capture parameters. Furthermore, the device can set the initialization displacement vector to a specific optimal value. The claims emphasize the integration of movement determination devices and the use of a non-transitory computer-readable medium containing software instructions to facilitate the method, highlighting the technological advancements in image processing and movement estimation.
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