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1. (WO2017040073) DETECTING KEYPOINTS IN IMAGE DATA

Pub. No.:    WO/2017/040073    International Application No.:    PCT/US2016/047829
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Aug 20 01:59:59 CEST 2016
IPC: G06K 9/00
G06K 9/46
G06T 7/00
Applicants: APPLE INC.
Inventors: POPE, David R.
Title: DETECTING KEYPOINTS IN IMAGE DATA
Abstract:
Methods and systems for detecting keypoints in image data may include an image sensor interface receiving pixel data from an image sensor. A front-end pixel data processing circuit may receive pixel data and convert the pixel data to a different color space format. A back-end pixel data processing circuit may perform one or more operations on the pixel data. An output circuit may receive pixel data and output the pixel data to a system memory. A keypoint detection circuit may receive pixel data from the image sensor interface in the image sensor pixel data format or receive pixel data after processing by the front-end or the back-end pixel data processing circuits. The keypoint detection circuit may perform a keypoint detection operation on the pixel data to detect one or more keypoints in the image frame and output to the system memory a description of the one or more keypoints.