US 11,790,860 B2
Systems and methods for providing image motion artifact correction for a color sequential (CS) display
James Fye, Phoenix, AZ (US); John Suddreth, Phoenix, AZ (US); Kenneth Leiphon, Phoenix, AZ (US); and Sean Caufield, Phoenix, AZ (US)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed on Sep. 3, 2021, as Appl. No. 17/466,677.
Prior Publication US 2023/0074306 A1, Mar. 9, 2023
Int. Cl. G09G 3/34 (2006.01); B60K 35/00 (2006.01); G06F 3/01 (2006.01); G09G 3/00 (2006.01); G02B 27/01 (2006.01); G09G 3/20 (2006.01)
CPC G09G 3/3413 (2013.01) [B60K 35/00 (2013.01); G06F 3/012 (2013.01); G09G 3/007 (2013.01); B60K 2370/12 (2019.05); B60K 2370/152 (2019.05); G02B 27/017 (2013.01); G09G 3/2003 (2013.01); G09G 2310/0235 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/0261 (2013.01); G09G 2380/10 (2013.01)] 12 Claims
OG exemplary drawing
 
7. A system providing image motion artifact correction for a color sequential (CS) display in a display system in a vehicle, the system comprising:
a source of a coherent red green blue (RGB) image frame for the CS display;
a source of a Line of Sight (LOS) motion rate;
a processor operationally coupled to the source of the coherent RGB image frame, the source of the motion rate, and the display system, the processor configured by programming instructions to,
receive the coherent RGB image frame;
calculate a sub-frame (SF) timing rate for the CS display;
unpack the coherent RGB image frame into a Red (R) frame, Green (G) frame, and a Blue (B) frame, based on the SF timing rate;
monitor the LOS motion rate;
determine a LOS rate change as a function of the LOS motion rate;
calculate a red pixel shift, a green pixel shift, and a blue pixel shift, collectively referred to as sub-frame pixel shifts, wherein each of the sub-frame pixel shifts is a function of the LOS rate change, the SF timing rate, and a pixels per degree of the CS display;
construct modified RGB sub-frames, by applying the red pixel shift to the Red frame, the green pixel shift to the Green frame, and the blue pixel shift to the Blue frame; and
re-packing the modified RGB sub-frames into a modified coherent RGB image frame for the CS display, thereby providing the image motion artifact correction,
wherein a display sub-frame timing includes a reference time for a first color, a second color offset time for a second color, and a third color offset time for a third color; and
wherein the processor is further programmed to:
calculate the sub-frame pixel shifts further as a function of a number of pixels per degree horizontally on the CS display and a number of pixels per degree vertically on the CS display;
calculate the sub-frame pixel shifts horizontally as a function of the number of pixels per degree horizontally, a horizontal angular rate of the CS display, and the display sub-frame timing; and
calculate the sub-frame pixel shifts vertically as a function of the number of pixels per degree vertically, a vertical angular rate of the CS display, and the display sub-frame timing.