Information processing on a head-mountable device
First Claim
1. A method comprising:
- determining, by a head-mountable device (HMD), a measure of ambient light at each of one or more ambient light sensors (ALSs) arranged on the HMD, wherein each ALS is configured to measure ambient light corresponding to a respective location of one of a plurality of electromagnetic-radiation emitter/sensors (EESs) arranged on the HMD, and wherein ambient light comprises electromagnetic radiation other than electromagnetic radiation emitted by the plurality of EESs;
based on the one or more determined measures of ambient light at the one or more ALSs, determining, by the HMD, (i) a first number of EESs to use for emitting electromagnetic radiation toward an eye and (ii) a second number of EESs to use for detecting electromagnetic radiation reflected from the eye;
selecting, by the HMD from among the plurality of EESs, a first group of particular EESs based at least on the first group having the first number of EESs;
selecting, by the HMD from among the plurality of EESs, a second group of particular EESs based at least on the second group having the second number of EESs;
causing, by the HMD, each of the particular EESs of the first group to emit electromagnetic radiation toward the eye;
receiving, by the HMD from the particular EESs of the second group, data indicative of electromagnetic radiation reflected from the eye; and
determining, by the HMD, a position of a portion of the eye based on the received data.
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Accused Products
Abstract
Example methods and systems determine a position of a portion of a human eye based on electromagnetic radiation reflected from the surface of the human eye. A sensor associated with a computing device can be calibrated in response to an event. The computing device can receive data indicative of electromagnetic radiation reflected from a human eye. The computing device can determine a position of a portion of the human eye based on the received data indicative of electromagnetic radiation. The computing device can generate an indication including the position of the portion of the human eye. The computing device can transmit the indication from the computing device. In some embodiments, the data indicative of electromagnetic information can be provided by electromagnetic emitter/sensors mounted on a wearable computing device directed toward a human eye of a wearer of the wearable computing device.
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Citations
18 Claims
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1. A method comprising:
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determining, by a head-mountable device (HMD), a measure of ambient light at each of one or more ambient light sensors (ALSs) arranged on the HMD, wherein each ALS is configured to measure ambient light corresponding to a respective location of one of a plurality of electromagnetic-radiation emitter/sensors (EESs) arranged on the HMD, and wherein ambient light comprises electromagnetic radiation other than electromagnetic radiation emitted by the plurality of EESs; based on the one or more determined measures of ambient light at the one or more ALSs, determining, by the HMD, (i) a first number of EESs to use for emitting electromagnetic radiation toward an eye and (ii) a second number of EESs to use for detecting electromagnetic radiation reflected from the eye; selecting, by the HMD from among the plurality of EESs, a first group of particular EESs based at least on the first group having the first number of EESs; selecting, by the HMD from among the plurality of EESs, a second group of particular EESs based at least on the second group having the second number of EESs; causing, by the HMD, each of the particular EESs of the first group to emit electromagnetic radiation toward the eye; receiving, by the HMD from the particular EESs of the second group, data indicative of electromagnetic radiation reflected from the eye; and determining, by the HMD, a position of a portion of the eye based on the received data. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A head-mountable device (HMD), comprising:
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a processor; a plurality of electromagnetic-radiation emitter/sensors (EESs); one or more ambient light sensors (ALSs), wherein each ALS is configured to measure ambient light corresponding to a respective location of one of the plurality of EESs, and wherein ambient light comprises electromagnetic radiation other than electromagnetic radiation emitted by the plurality of EESs; a non-transitory computer-readable medium; and program instructions stored on the non-transitory computer-readable medium and executable by the processor to cause the HMD to perform functions comprising; determining a measure of ambient light at each of the one or more ALSs; based on the one or more determined measures of ambient light at the one or more ALSs, determining (i) a first number of EESs to use for emitting electromagnetic radiation toward an eye and (ii) a second number of EESs to use for detecting electromagnetic radiation reflected from the eye; selecting, from among the plurality EESs, a first group of particular EESs based at least on the first group having the first number of EESs; selecting, from among the plurality of EESs, a second group of particular EESs based at least on the second group having the second number of EESs; causing each of the particular EESs of the first group to emit electromagnetic radiation toward the eye; receiving, from the particular EESs of the second group, data indicative of electromagnetic radiation reflected from the eye; and determining a position of a portion of the eye based on the received data. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An article of manufacture including a non-transitory computer-readable medium having instructions stored thereon that, if the instructions are executed by a head-mountable device (HMD), cause the HMD to perform functions comprising:
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determining a measure of ambient light at each of one or more ambient light sensors (ALSs) arranged on the HMD, wherein each ALS is configured to measure ambient light corresponding to a respective location of one of a plurality of electromagnetic-radiation emitter/sensors (EESs), and wherein ambient light comprises electromagnetic radiation other than electromagnetic radiation emitted by the plurality of EESs; based on the one or more determined measures of ambient light at the one or more ALSs, determining (i) a first number of EESs to use for emitting electromagnetic radiation toward an eye and (ii) a second number of EESs to use for detecting electromagnetic radiation reflected from the eye; selecting, from among the plurality EESs, a first group of one or more particular EESs based at least on the first group having the first number of EESs; selecting, from among the plurality of EESs, a second group of particular EESs based at least on the second group having the second number of EESs; causing each of the particular EESs of the first group to emit electromagnetic radiation toward the eye; receiving, from the particular EESs of the second group, data indicative of electromagnetic radiation reflected from the eye; and determining a position of a portion of the eye based on the received data. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification