Cues for capturing images

摘要

Approaches are described which enable a user of a computing device (e.g., mobile phone, tablet computer) to capture a first image using the front-facing camera and then use that first image to guide the capturing of a second image (e.g., a higher quality image) using the rear-facing camera of the device. When the user turns the device around, the first image is used as a model template to guide the user in moving and/or rotating the device to align the rear-facing camera for capturing the second image.

主权项

1. A computing device, comprising:
a display screen positioned proximate to a front side of the computing device, the display screen configured to display visual information to a user; a front-facing camera positioned proximate to the front side of the computing device; a rear-facing camera positioned proximate to a rear side of the computing device that is opposite with respect to the front side; at least one processor; and memory including instructions that, when executed by the at least one processor, cause the computing device to:
capture a first image by the front-facing camera;detect a rotation of the computing device from a first position to a second position, the user being at least partially in a field of view of the rear-facing camera when the computing device is positioned in the second position;activate the rear-facing camera;set a minimum threshold for alignment based at least in part on the field of view of the rear-facing camera;capture image data including a sequence of images by the rear-facing camera;compare the first image with at least one of the sequence of images in the image data to provide feedback to a user, the feedback indicating when alignment between the first image and the image data is increasing;detect that the alignment between the first image and the image data is within the minimum threshold for alignment when at least a minimum portion of the at least one of the sequence of images matches a corresponding portion of the first image; andcapture a second image using the rear-facing camera and persist the second image into non-volatile memory in response to detecting that the alignment between the image data and the first image has reached the minimum threshold for alignment.