Displaying image data and geographic element data

摘要

A mobile computing device includes a housing, a camera, a display, a memory, and a processing circuit. The housing is configured to be carried by a user while in use. The camera is configured to output image data. The memory is configured to store geographic element data representing one or more geographic elements. The processing circuit is configured to receive the geographic element data for the plurality of geographic elements. The processing circuit is configured to determine a camera orientation. The processing circuit is configured to concurrently display the image data and geographic element data for the plurality of geographic elements on the display.

主权项

1. A mobile computing device comprising:
a camera to capture video data; a display to output the video data; a position determination circuit to determine a current position of the mobile computing device; a processing circuit; and one or more memory resources storing instructions that, when executed by the processing circuit, cause the mobile computing device to:
identify geographic elements in the video data;based on the current position and an orientation of the camera, determine a field of view of the camera;superimpose, on the video data, geographic indicators corresponding to the geographic elements; andreposition the geographical indicators on the video data based on a change in the field of view of the camera by:
partitioning each frame of the video data into a plurality of blocks;calculating a correlation between a first block in a first frame of the video data with each of a number of neighboring blocks that surround the first block in a subsequent frame of the video data;identifying the neighboring block having the highest correlation with the first block in the first frame of the video data;determining a set of motion vectors corresponding to the identified neighboring block to identify, for the subsequent frame of the video data, the change in the field of view of the camera;creating a new frame of geographical indicators based on the first frame and the set of motion vectors; andsuperimposing the new frame on the subsequent frame of the video data.