Information processing apparatus, information processing method, and information processing system

An information processing apparatus comprising:

• a memory;
• and
• a processor coupled to the memory and configured to:
• calculate a probability distribution of a joint position of an object in each frame by using an image including the object having a plurality of joints and having a plurality of frames consecutive in time as a probability distribution function;
• calculate, as a relative position score function, a relative position score by evaluating a consistency of a relative position relationship among the joints of the object in each frame;
• calculate, as a transition score function, a transition score by evaluating a consistency of a transition of a joint of the plurality of joints using transition information of the joint among different frames;
• and
• estimate a pose of the object by linearly combining the probability distribution function, the relative position score function, and the transition score function.

An information processing method comprising:

• calculating, by using an image including an object having a plurality of joints and having a plurality of frames consecutive in time, a probability distribution of a joint position of the object in each frame as a probability distribution function;
• calculating, as a relative position score function, a relative position score by evaluating a consistency of a relative position relationship among the joints of the object in each frame;
• calculating, as a transition score function, a transition score by evaluating a consistency of a transition of a joint of the plurality of joints using transition information of the joint among different frames;
• and
• estimating a pose of the object by linearly combining the probability distribution function, the relative position score function, and the transition score function.

An information processing system comprising:

• an information processing apparatus including:
• a memory;
• and
• a processor coupled to the memory and configured to:
• calculate a probability distribution of a joint position of an object in each frame by using an image including the object having a plurality of joints and having a plurality of frames consecutive in time as a probability distribution function;
• calculate, as a relative position score function, a relative position score by evaluating a consistency of a relative position relationship among the joints of the object in each frame;
• calculate, as a transition score function, a transition score by evaluating a consistency of a transition of a joint of the plurality of joints using transition information of the joint of the object among different frames;
• and
• estimate a pose of the object by linearly combining the probability distribution function, the relative position score function, and the transition score function;
• and
• a learning apparatus that causes a controller to learn the transition information of the same joint of the object which is used in the transition score calculation unit of the information processing apparatus for evaluating the consistency of the transition of the joint, and outputs the learned transition information of the same joint of the object to the information processing apparatus.