US12774874 - Method and apparatus for detecting location of dart pin
The patent describes a method for detecting the location of a dart pin on a dart target plate using multiple cameras to capture plenoptic videos, which are processed to generate refocused images for various focal planes. This technique allows for the extraction of a clear image of the dart pin in focus, enabling accurate determination of its attachment location.
Claim 1
1 . A method of detecting a location of a dart pin attached to a dart target plate, the method comprising: generating refocused images for multiple preset focal planes based on plenoptic videos of the dart target plate, which are obtained by using one or more cameras disposed around the dart target plate; generating, based on the refocused images, an extracted image for an object dart pin located in one focal plane of the multiple preset focal planes, wherein the extracted image for the object dart pin is an image cleared of a dart pin present on a focal plane different from the focal plane of the object dart pin, among a plurality of dart pins attached to the dart target plate; and determining an attachment location of the object dart pin based on the extracted image. generating refocused images for multiple preset focal planes based on plenoptic videos of the dart target plate, which are obtained by using one or more cameras disposed around the dart target plate; generating, based on the refocused images, an extracted image for an object dart pin located in one focal plane of the multiple preset focal planes, wherein the extracted image for the object dart pin is an image cleared of a dart pin present on a focal plane different from the focal plane of the object dart pin, among a plurality of dart pins attached to the dart target plate; and determining an attachment location of the object dart pin based on the extracted image.
Google Patents
https://patents.google.com/patent/US12774874
USPTO PDF
https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12774874