Overlaying PNG Image on Cesium Map Using Four Corner Coordinates

Hello,

I’m looking to overlay a PNG image onto a Cesium map, using the latitude and longitude coordinates of the four corners of the image. My initial approach was to use the Cesium Rectangle to define the image bounds. This allowed me to specify the longitudinal limits (east and west) and latitudinal limits (north and south), but it resulted in some misalignment issues.

Is there a more precise way to overlay the image by specifying the latitude and longitude coordinates of each of the four corners? Thank you!