Methods and apparatus to capture images

摘要

Methods and apparatus to capture images are disclosed. An example apparatus includes an image capturing device to operate in a first illumination mode or a second illumination mode; and a logic circuit to determine whether a head detected in a first frame captured at a first time is oriented such that a facial recognition process on a second frame has greater than a threshold likelihood to succeed; place the image capturing device in the first illumination mode at the second time when the head detected in the first frame is oriented such that the facial recognition process has greater than the threshold likelihood to succeed; and place the image capturing device in the second illumination mode at the second time when the head detected in the first is not oriented such that the facial recognition process has greater than the threshold likelihood to succeed.

主权项

1. A tangible computer readable medium comprising instructions that, when executed, cause a machine to at least:
determine whether a head detected in a first frame captured at a first time is oriented in a desired position; operate an image capturing device in a first illumination mode at a second time when the head detected in the first frame is oriented in the desired position, wherein an illumination source is active when the image capturing device is operating in the first illumination mode; operate the image capturing device in a second illumination mode at the second time when the head detected in the first frame is not oriented in the desired position, wherein the illumination source is inactive when the image capturing device is operating in the second illumination mode; and perform a facial recognition process on image data captured while in the first illumination mode, but not on image data captured while in the second illumination mode.