I think technology can play a role in learning and training martial arts but it cannot replace human interaction and instruction.
Your second paragraph here tells me that you are coming at this with some heavily misunderstood presumptions. First, there is no “basic of all martial art” to begin with. Second, there is no “respective expert” for most styles, meaning that (with some exceptions) there is no single authority that says exactly how something is to be done. There are various individuals who typically are seen as an authority within a certain group, which group may be small or large, but are not accepted as an authority outside of that group, even among others who practice the same style or a variant of the same style. In fact, there can be a lot of disagreement and even downright hostility between some of these people.
Martial arts is not just mimicry of movement. There is a lot of subtlety beneath the surface that can make one person’s punch (for example) dramatically different from another person’s, even if they appear to be the same from the viewpoint of an observer. These are issues of how one engages and uses their stance and root and posture to drive that punch which can differs from one system to another, and one person from another. The posture and path of movement can appear to be the same, but how power is being generated and the effectiveness of that punch, can be worlds apart. Further, the methodology of how one system goes about developing that punch and that power can be dramatically different. I can promise you, the fundamental punching practice as done by my system, Tibetan White Crane kung fu, looks nothing like the punching practice done in a wing Chun kung fu school or a Tae Kwon do school or a boxing school or a shotokan Karate school. Eventually, a seasoned practitioner in any of these systems should develop a powerful and devastating punch, and there may ultimately be similarities in the principles that are being engaged, but the training method in how they get there can vary dramatically. There is no algorithm that will be able to take this into account, there is no computer that can understand the variations from one system to another and the complexities of how the system works and then guide the student in self-discovery and learning and self-correction in a way that teaches them any of these martial systems in an accurate and effective way.
I think this is an attempt to do an end-run around the need for a competent and knowledgeable teacher. I do not believe it is possible. I do believe technology can be useful as a supplemental tool. Movement analysis can be worthwhile, but that movement then needs to be analyzed by a teacher who understands how the system works. The computer itself cannot correct the student. The student cannot self- correct without a teacher giving that guidance. The teacher needs to be present and needs to be doing the major bulk of the instruction.
If you are interested in pursuing a project like this, I suggest you look for a meaningful way to develop the technology into an effective supplemental tool, assuming the student is receiving quality instruction from a good teacher. But I think it is a mistake to believe it can become a replacement for the teacher.
