Object detection metadata

摘要

A perimeter around a detected object in a frame of image data can be generated in a first coordinate system. The perimeter can be converted from the first coordinate system into a second coordinate system having the same aspect ratio as the first coordinate system. A first metadata entry can include dimensions of image data in the second coordinate system. A second metadata entry can provide a location and dimensions of the converted perimeter in the second coordinate space. Additional metadata can indicate matching objects between frames, position of an object relative to other objects in a frame, a probability that an object is correctly detected, and a total number of objects detected across multiple frames of image data.

主权项

1. A method comprising:
converting, by a data processing system, an image data having a pixel aspect ratio into a pixel-independent coordinate space, wherein the image data includes pixel-independent dimensions in the pixel-independent coordinate space; transmitting object metadata comprising the pixel-independent dimensions of the image data and information about a first object detection perimeter, wherein the information about the first object detection perimeter provides a first pixel-independent location of the first object detection perimeter in the image data and first pixel-independent dimensions of the first object detection perimeter, and wherein the information is expressed in the pixel-independent coordinate space.