Gesture input method and apparatus

• US 5,714,698 A
• Filed: 04/14/1997
• Issued: 02/03/1998
• Est. Priority Date: 02/03/1994
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Tanaka, Atsushi, Sato, Hajime, Kobayashi, Katsuyuki, Tokioka, Masaki, Yoshimura, Yuichiro, Yanagisawa, Ryozo
• Primary Examiner(s): NOLAND, THOMAS
• Application Number:
  US08/837,128
• Time in Patent Office: 295 Days
• Field of Search: 73/865.4, 73/865.7, 73/504.02, 73/504.03, 73/510, 340/573
• US Class Current: 73/865.4
• CPC Class Codes: G06F 2218/12 Classification; Matching
• CPC Class Codes: G06F 3/014 Hand-worn input/output arrangements, e.g. data gloves
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06V 40/20 Movements or behaviour, e.g. gesture recognition recognition of facial expressions G06V40/16

Abstract

A gesture input apparatus comprises: a plurality of multiaxis angular velocity sensors or multiaxis acceleration sensors respectively for detecting multiaxis angular velocities or multiaxis accelerations; a difference sampling circuit for outputting the difference between one of outputs from the sensors, as a reference value, and outputs from the other sensors; a gesture dictionary for pre-storing sample values of feature relative value outputs; an arithmetic operation controller for recognizing gesture, by comparing an output value from the difference sampling circuit with a value within the gesture dictionary, based on output indicative of change in elapse of time, from said difference sampling circuit, as one set of data; and a distance sensor for detecting the relative distance between a fixed member and a movable member by using sound waves or light.

Claims

1. A gesture input apparatus comprising:

a plurality of multiaxis acceleration detection means, each having a plurality of acceleration detecting means wherein the acceleration detecting means of each multiaxis detection means are on respective nearly orthogonal axes of the multiaxis acceleration detection means, respectively for detecting multiaxis accelerations of the multiaxis acceleration detection means;

difference value output means for outputting for every one of the nearly orthogonal axes a value of a difference between one of the multiaxis accelerations detected by one of the multiaxis acceleration detection means, as a reference value, and another of the multiaxis accelerations detected by another one of the multiaxis acceleration detection means; and

gesture recognition means for recognizing a gesture responsive to data representing a set of difference values at a point or points of time outputted by the difference value output means,

wherein said plurality of multiaxis acceleration detection means function independently from each other, and

wherein said gesture recognition means includes gesture dictionary means for prestoring samples of difference values, and said gesture recognition means performs recognition by comparing an output value from said difference value output means with a difference value sample in said gesture dictionary means.

2. The gesture input apparatus according to claim 1, wherein a said plurality of multiaxis acceleration detection means are attached on a movable object in such a manner that directions of corresponding axes among the nearly orthogonal axes of said plurality of multiaxis acceleration detection means are nearly the same.

3. The gesture input apparatus according to claim 1, wherein each of said plurality of multiaxis acceleration detection means has two axes.

4. The gesture input apparatus according to claim 1, further comprising measurement means for detecting a relative distance between a fixed member and said gesture input apparatus, by using sound waves or light.

5. A gesture input apparatus comprising:

a plurality of multiaxis angular velocity detection means, each having a plurality of angular velocity detecting means wherein the angular velocity detecting means of each multiaxis angular velocity detection means are on respective nearly orthogonal axes of the multiaxis angular velocity detection means, respectively for detecting multiaxis angular velocities of the multiaxis angular velocity detection means;

difference value output means for outputting for every one of the nearly orthogonal axes a value of a difference between one of the multiaxis angular velocities detected by one of the multiaxis angular velocity detection means, as a reference value, and another one of the multiaxis angular velocities detected by another one of the multiaxis angular velocity detection means; and

gesture recognition means for recognizing a gesture responsive to data representing a set of difference values at a point or points of time outputted by the difference value output means,

wherein said plurality of multiaxis angular velocity detection means function independently from each other.

6. The gesture input apparatus according to claim 5, wherein said plurality of multiaxis angular velocity detection means are attached on a movable object in such a manner that directions of corresponding axes among said nearly orthogonal axes of said plurality of multiaxis angular velocity detection means are nearly the same.

7. The gesture input apparatus according to claim 5, wherein each of said plurality of multiaxis angular velocity detection means has two axes.

8. The gesture input apparatus according to claim 5, wherein said gesture recognition means includes gesture dictionary means for pre-storing sample values of feature difference values, and said gesture recognition means performs recognition by comparing an output value from said difference value output means with a value stored in said gesture dictionary means.

9. The gesture input apparatus according to claim 5, further comprising measurement means for detecting a relative distance between a fixed member and said gesture input apparatus, by using sound waves or light.