Information terminal, power saving method in information terminal detecting probability of presence of a human or change in position, and recording medium which records program
First Claim
1. An information terminal, equipped with a camera, and comprising:
- a human detection unit comprising a processor which detects a human being using an image captured by said camera and notifies a control unit when the human being is detected;
a memory which records information of a detection result, of detecting the human being, together with information of a time; and
the control unit, which is connected with the memory, calculates a probability that the human being is detected using information of the detection result and information of the time notified from the memory, calculate a first time slot in which a probability that the human being is detected is above a threshold probability and a second time slot in which the probability that the human being is detected is below the threshold probability, the first time slot and the second time slot being calculated in advance of detecting the human being, and powers on said camera from an off state in response to a first time of the first time slot arriving, and searches the second time slot nearest to a current time based on a calculation result.
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Accused Products
Abstract
[Problems to be solved] To provide an information terminal, a power saving method in the information terminal and a recording medium which records a program which are capable of efficiently suppressing power consumption related to human detection.
[Solution] A human detector performs human detection processing using a captured image by a camera and notifies a control unit of the detection result. Various sensors, an RF unit and a position information detector acquire information related to a change in a position of the information terminal and notify the control unit. The control unit performs power control for the camera on the basis of at least one of the human detection processing result and the information related to the change in the position of the information terminal.
12 Citations
9 Claims
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1. An information terminal, equipped with a camera, and comprising:
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a human detection unit comprising a processor which detects a human being using an image captured by said camera and notifies a control unit when the human being is detected; a memory which records information of a detection result, of detecting the human being, together with information of a time; and the control unit, which is connected with the memory, calculates a probability that the human being is detected using information of the detection result and information of the time notified from the memory, calculate a first time slot in which a probability that the human being is detected is above a threshold probability and a second time slot in which the probability that the human being is detected is below the threshold probability, the first time slot and the second time slot being calculated in advance of detecting the human being, and powers on said camera from an off state in response to a first time of the first time slot arriving, and searches the second time slot nearest to a current time based on a calculation result. - View Dependent Claims (2, 3)
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4. A power saving method, of an information terminal equipped with a camera, the method comprising:
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performing human being detection processing to detect a human being using an image captured by said camera; storing a detection result, of detecting the human being, together with information of a time; calculating a probability that the human being is detected using information of the detection result and information of the time; calculating a first time slot in which a probability that the human being is detected is above a threshold probability and a second time slot in which the probability that the human being is detected is below the threshold probability, the first time slot and the second time slot being calculated in advance of detecting the human being; powering on said camera from an off state in response to a first time of the first time slot arriving; and searching the second time slot nearest to a current time based on a calculation result. - View Dependent Claims (5, 6)
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7. A non-transitory computer readable recording medium comprising a program configured to instruct a computer, connected to a camera, to execute:
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human being detection processing to detect a human being using an image captured by the camera; storing a detection result, of detecting the human being, together with information of a time; calculating a probability that the human being is detected using information of the detection result and information of the time; calculating a first time slot in which a probability that the human being is detected is above a threshold probability and a second time slot in which the probability that the human being is detected is below the threshold probability, the first time slot and the second time slot being calculated in advance of detecting the human being; powering on said camera from an off state in response to a first time of the first time slot arriving; and searching the second time slot nearest to a current time based on a calculation result. - View Dependent Claims (8, 9)
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Specification