# US 2014/0198029 A1 · Techniques for gesture recognition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0198029 A1 - Document ID: US20140198029A1 - Status: Published application - Kind: A1 - Application number: 13/976,936 - Filed: 2011-06-29 - Published: 2014-07-17 - Earliest claimed: 2011-06-29 - Assignees: Intel Corporation - Inventors: Xiaoyan Dang; Mingzhi Dong; Wei Wang - Web page: https://patentgrep.com/patent/US20140198029A1 ## CPC - 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)} - G06F 3/0346: with detection of the device orientation or free movement in a three-dimensional [3D] space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors - G06V 40/20: Movements or behaviour, e.g. gesture recognition (recognition of facial expressions G06V40/16) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract A method and system may provide gesture recognition techniques. An energy aggregation value may be determined for data corresponding to a gesture using principal component analysis. Based at least in part on the energy aggregation value, it may be determined whether the gesture is a one or two dimensional gesture. ## Claims ### Claim 1 An article comprising a machine-readable storage medium containing instructions that when executed enable a system to: determine an energy aggregation value for data corresponding to a gesture using principal component analysis; and determine whether the gesture is a one or two dimensional gesture based at least in part on the energy aggregation value. ### Claim 2 (depends on 1) The article of claim 1, comprising instructions that when executed enable a system to: determine the gesture using a multi-level decision tree. ### Claim 3 (depends on 1) The article of claim 1, comprising instructions that when executed enable a system to: determine a zero crossing rate when the gesture is a one dimensional gesture. ### Claim 4 (depends on 1) The article of claim 1, comprising instructions that when executed enable a system to: determine that the gesture is a two direction, one dimensional gesture when a zero crossing rate of the gesture is higher than a first threshold. ### Claim 5 (depends on 1) The article of claim 1, comprising instructions that when executed enable a system to: determine that the gesture is a one direction, one dimensional gesture when a zero crossing rate of the gesture is lower than a first threshold. ### Claim 6 (depends on 4) The article of claim 4, comprising instructions that when executed enable a system to: determine that the gesture is a two dimensional gesture when the zero crossing rate of the gesture is higher than a second threshold. ### Claim 7 (depends on 1) The article of claim 1, comprising instructions that when executed enable a system to: normalize the data. ### Claim 8 (depends on 1) The article of claim 1, comprising instructions that when executed enable a system to: remove noise from the data. ### Claim 9 (depends on 1) The article of claim 1, comprising instructions that when executed enable a system to: measure energy dispersion to determine a type of two dimensional gesture. ### Claim 10 (depends on 1) The article of claim 1, comprising instructions that when executed enable a system to: determine whether the gesture is one or more of: up, down, left and right. ### Claim 11 (depends on 1) The article of claim 1, comprising instructions that when executed enable a system to: determine whether the gesture is one or more of: up and down, down and up, left and right, and right and left. ### Claim 12 (depends on 1) The article of claim 1, comprising instructions that when executed enable a system to: determine whether the gesture is one or more of a square and a circle. ### Claim 13 A gesture recognition system comprising: a device with: a logic component; and a gesture control analyzer operative on the logic component to: determine an energy aggregation value for data corresponding to a gesture using principal component analysis; and determine whether the gesture is a one or two dimensional gesture based at least in part on the energy aggregation value. ### Claim 14 (depends on 13) The system of claim 13, the gesture control analyzer operative on the logic component to determine the gesture using a multi-level decision tree. ### Claim 15 (depends on 13) The system of claim 13, the gesture control analyzer operative on the logic component to determine a zero crossing rate when the gesture is a one dimensional gesture. ### Claim 16 (depends on 13) The system of claim 13, the gesture control analyzer operative on the logic component to determine that the gesture is a two direction, one dimensional gesture when a zero crossing rate of the gesture is higher than a first threshold. ### Claim 17 (depends on 13) The system of claim 13, the gesture control analyzer operative on the logic component to determine that the gesture is a one direction, one dimensional gesture when a zero crossing rate of the gesture is lower than a first threshold. ### Claim 18 (depends on 16) The system of claim 16, the gesture control analyzer operative on the logic component to determine that the gesture is a two dimensional gesture when the zero crossing rate of the gesture is higher than a second threshold. ### Claim 19 (depends on 13) The system of claim 13, the gesture recognition system comprising: a wireless antenna. ### Claim 20 A method, comprising: determining an energy aggregation value for data corresponding to a gesture using principal component analysis; and determining whether the gesture is a one or two dimensional gesture based at least in part on the energy aggregation value. ### Claim 21 (depends on 20) The method of claim 20, comprising: determining the gesture using a multi-level decision tree. ### Claim 22 (depends on 20) The method of claim 20, comprising: determining a zero crossing rate when the gesture is a one dimensional gesture. ### Claim 23 (depends on 20) The method of claim 20, comprising: determining that the gesture is a two direction, one dimensional gesture when a zero crossing rate of the gesture is higher than a first threshold. ### Claim 24 (depends on 20) The method of claim 20, comprising: determining that the gesture is a one direction, one dimensional gesture when a zero crossing rate of the gesture is lower than a first threshold. ### Claim 25 (depends on 23) The method of claim 23, comprising: determining that the gesture is a two dimensional gesture when the zero crossing rate of the gesture is higher than a second threshold. ### Claim 26 (depends on 20) The method of claim 20, comprising: measuring energy dispersion to determine a type of two dimensional gesture. ### Claim 27 (depends on 20) The method of claim 20, the one dimensional gesture comprises a one direction gesture or a two direction gesture. ### Claim 28 (depends on 20) The method of claim 20, comprising: determining whether the gesture is one or more of: up, down, left and right. ### Claim 29 (depends on 20) The method of claim 20, comprising: determining whether the gesture is one or more of: up and down, down and up, left and right, and right and left. ### Claim 30 (depends on 20) The method of claim 20, comprising: determining whether the gesture is one or more of a square and a circle.