Performance apparatus, a method of controlling the performance apparatus and a program recording medium

A computer readable non-transitory recording medium having stored thereon a program for controlling a control unit of a performance apparatus, wherein the performance apparatus is provided with a computer, a performance member operated by a player, an image pickup unit for continuously taking pickup images including a pickup-image plane and the performance member, and a storing unit for storing layout information including positions of plural areas set on the pickup-image plane, and wherein the computer program, when read and executed on the computer, making the computer implement a method comprising:

• a step of detecting a position of the performance member on the pickup-image plane of a first pickup image and a position of the performance member on the pickup-image plane of a second pickup image among the pickup images taken by the image pickup unit, wherein the second pickup image was taken prior to the first pickup image;
• a step of comparing the two detected positions of the performance member to judge whether the difference between the two detected positions of the performance member is more than a predetermined value, and of setting the position of the performance member on the pickup-image plane of the first pickup image as the present position of the performance member when it is determined that the difference between the two detected positions of the performance member is more than the predetermined value, and setting the position of the performance member on the pickup-image plane of the second pickup image as the present position of the performance member when it is determined that the difference between the two detected positions of the performance member is less than the predetermined value;
• and
• a step of giving an instruction of generating a musical tone corresponding to the area including the determined present position of the performance member when the difference between the two detected positions of the performance member is more than the predetermined value and the determined present position of the performance member is included in one of the plural areas, positions of which are included in the layout information.

A method of controlling a performance apparatus, wherein the performance apparatus is provided with a performance member operated by a player, an image pickup unit for continuously taking pickup images including a pickup-image plane and the performance member, and a storing unit for storing layout information including positions of plural areas set on the pickup-image plane, the method comprising:

• a step of detecting a position of the performance member on the pickup-image plane of a first pickup image and
• a position of the performance member on the pickup-image plane of a second pickup image among the pickup images taken by the image pickup unit, wherein the second pickup image was taken prior to the first pickup image;
• a step of comparing the two detected positions of the performance member to judge whether the difference between the two detected positions of the performance member is more than a predetermined value, and of setting the position of the performance member on the pickup-image plane of the first pickup image as the present position of the performance member when it is determined that the difference between the two detected positions of the performance member is more than the predetermined value, and setting the position of the performance member on the pickup-image plane of the second pickup image as the present position of the performance member when it is determined that the difference between the two detected positions of the performance member is less than the predetermined value;
• and
• a step of giving an instruction of generating a musical tone corresponding to the area including the determined present position of the performance member when the difference between the two detected positions of the performance member is more than the predetermined value and the determined present position of the performance member is included in one of the plural areas, positions of which are included in the layout information.