Here is a part of the Third Row Podcast that I think gives some good insight into the process of doing Smart Summon:
Q: "What's so hard about curbs?"
A: "When we first started on Smart Summon, and you all know since you have the cars, it was laggy. Not perfect. We were just trying as much as we could to make it smooth. With the older Autopilot system that we had before the rewrite, using the cameras, for curbs and stuff, you can only use the side repeater cameras and maybe the back-up camera and the angle at which you are seeing the curb, 80% seeing the actual curb and the rest you are guessing because of the distance, how high the curb is, and all that. That is why it such a hard thing to label and teach the neural net. When doing all the labeling, it is very very complicated. The accuracy has to pretty much be 100% or else there is going to be some flaw in the car driving around the curb or seeing the curb. With the new rewrite, it will be a lot better because we can look around, zoom in, zoom out, and label that curb in 3D and make it much easier."
I guess now we know why Smart Summon sucked when it was released. He basically admits that the cameras could only see 80% of the curb!! WOW!! Frankly, it is a bit shocking that Tesla released Smart Summon with this obvious flaw!
I think his answer is also a perfect microcosm for the entire AP development. Tesla releases stuff before it works reliably, the sensors are not really good enough but Tesla makes it work as best they can, and then later, Tesla eventually figures out how to do the feature the right way. I am not being anti-Tesla. He admits it!!!
It is encouraging though that the rewrite will apparently allow the system to zoom in and out and thus make it possible to see curbs better which should lead to better Smart Summon. Hopefully, the rewrite will indeed lead to much better Smart Summon and much better AP.
@nepenthe This quote illustrates why I make "absolutist" statements about Tesla's hardware not being good enough for L5. This is a former Tesla employee who worked on AP, admitting that the car only has the side repeaters and maybe the back up camera to see curbs when it is backing out in Smart Summon and that the cameras could only see about 80% of the curbs!! That is not good hardware for doing FSD! Now, Tesla is apparently going to fix this in the upcoming rewrite but it is telling that the current sensors have these issues. With additional parking cameras, this problem could have been fixed immediately and Tesla could have avoided all the problems with Smart Summon. And of course, lidar would have solved this problem as well since lidar would have painted a 3D map and shown exactly and accurately where the curbs are. My point being that with more sensors and better sensors, Tesla could have much higher confidence in solving perception and solving FSD.