US 11,810,230 B2
Method and system for validating the graphical generation of symbols to display
Nicolas Levasseur, Merignac (FR); Matthieu Grossetete, Merignac (FR); and Sylvain Le Henaff, Merignac (FR)
Assigned to THALES, Courbevoie (FR)
Filed by Thales, Courbevoie (FR)
Filed on Apr. 12, 2022, as Appl. No. 17/718,452.
Claims priority of application No. 21 03956 (FR), filed on Apr. 16, 2021.
Prior Publication US 2022/0335670 A1, Oct. 20, 2022
Int. Cl. B64D 43/00 (2006.01); G06T 11/40 (2006.01); G06T 7/00 (2017.01)
CPC G06T 11/40 (2013.01) [B64D 43/00 (2013.01); G06T 7/0002 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/30168 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for validating the graphical generation of symbols to display, comprising a graphical generation of symbols to display, based on source information coming from at least one physical piece of equipment, to form a video stream comprising a plurality of rasters comprising said symbols, each raster consisting of pixels having associated values, the video stream being intended to be displayed in order to enable an operator to control a system,
wherein the graphical generation of symbols to display comprises a pixel generation with the attribution of at least one associated symbol attribute for each pixel contributing to one of said symbols,
the method further comprising, for at least one raster of said video stream, the steps of:
a) obtaining at least one reference symbol attribute associated with at least one symbol to be monitored,
b) identifying pixels having the reference symbol attribute(s), during a scan of the pixels of said raster in a predetermined course direction, the identified pixels contributing to said at least one symbol to be monitored, and calculating characteristic information associated with the identified pixels,
c) validating the display of the symbol or symbols to be monitored based on said calculated characteristic information and of source information associated with said symbols to display,
d) in case of absence of validation, raising an alert,
the symbol attributes being selected from a priority or depth value, a transparency value or a dedicated attribute, or a combination of said attributes,
wherein said characteristic information includes a number of pixels contributing to the symbol to be monitored, minimum and maximum coordinates of the pixels having the reference symbol attribute.