Dear Murat Bozkurt ,

Look the link, maybe useful.

Article Interconversion Between Truncated Cartesian and Polar Expans...

Article Simulation of digital scan conversion for ultrasound systems...

Regards,

Shafagat

As far as I understand , the image acquisition has a variety of modes such as mode A and mode B . In mode B say each frame is based on sectors (with distance and an angle or 2 angles that is polar or spherical coordinate system)

Link of a patent for scan conversion and correction:https://patents.google.com/patent/US20040138560A1/en

It depends on your sensor, but probably this data is sort of 2048 measurements each involving 256 echo intensities or 256 measurements involving 2048 echo intensities.

The position of the echo intensity within the measurement is usually related to time (check timer resolution in the datasheet), so you can compute distance assuming constant speed of sound.

The angle is probably related to the measurement number. If you have 256 measurements and the sensor rotates 360 degrees, you can do the conversion easily.

Given angle and distance, conversion to cartesian is straightforward... if the sensor was not moving while gatheting the data. If it was, it all depends on how it moved and how fast it took to perform the scan.

Finally, if you want to plot jus points, you have to segment the data. An easy approximation is to use the largest echo intensity of each measurement.