Dance movement teaching auxiliary method and system based on 3D somatosensory camera

Abstract

The invention discloses a dance movement teaching auxiliary method and a dance movement teaching auxiliary system based on a 3D somatosensory camera. The method comprises the following steps: acquiring depth map data during the dancing process of a student terminal; carrying out skeleton extraction on the depth map data; dividing the dancing movement time frame, and calculating the feature rotation matrix of each joint point at each moment of the target movement time frame according to the extracted coordinate of each joint point in the skeleton at each moment; and comparing the feature rotation matrixes in the target movement time frame with the corresponding preset standard matrix, calculating the similarity, and outputting reminding information when the similarity is lower than a threshold value. According to the method and the system, by comparing the movement feature relevant matrixes of a student with the preset standard matrix of a teacher, the movement condition and standard degree of the joint during the dance posture of the student can be accurately reminded. In addition, the data foundation used for comparing is the feature rotation matrix of each moment in the target movement time frame, and whether the whole movement, especially the continuous transformation of each joint angle is standard or not can be reflected.

Description

Technical field [0001] The invention relates to computer vision and image processing technology and tools, in particular to a dance movement teaching assistant method and system based on a 3D somatosensory camera. Background technique [0002] With the strengthening of people's awareness of fitness and the increase of dance enthusiasts, dance groups continue to expand, and dance as a fitness exercise has slowly entered the daily lives of most people. The postures and movements of the asanas in the dance practice are very important. Most people practice dance in a professional venue to follow a professional dance teacher, that is, by observing the dance teacher’s movements and imitating them, and then correcting them under the guidance of the dance teacher to achieve the practice. effect. However, when the bad weather, inconvenient transportation and other reasons prevent athletes from coming to the venue where the dance teacher is located for face-to-face learning, they cannot p...

AI Technical Summary

Problems solved by technology

However, when the bad weather, inconvenient transportation and other reasons make it impossible for the athletes to come to the venue where the dance teacher is located for face-to-face learning, they cannot perform effective dance practice alone

Furthermore, when dance athletes learn from a dance teacher, the dance teacher needs to spend a lot of time and energy correcting the athlete's posture and movements. When there are many students, the dance teacher will inevitably be unable to make timely corrections. Moreover, the observation and judgment of the dance teacher Very high ability requirements

If students do not receive accurate and timely corrections from professional teachers, it is likely to delay dance practice, which is extremely detrimental to both dance athletes and dance teachers

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