Information processing apparatus for recognizing operation input by gesture of object and control method thereof

An information processing apparatus comprising:

• one or more memories storing instructions;
• and
• one or more processors that, when executing the instructions, causes the information processing apparatus to:
• obtain information indicating a proximity state of an object and a predetermined operation surface, based on information of sensing the predetermined operation surface from above;
• set a condition regarding the proximity state for determining whether the object is released from the operation surface based on a moving speed and a release threshold value of the object in a period during which the object is regarded as touching the operation surface for input by the obtained information, wherein the release threshold value changes depending on the moving speed;
• and
• determine that the object is released from the operation surface in response to that the obtained information satisfies the set condition.