Patent ID: 9609217
Date: 2017-03-28
CPC Classifications: G06T,H04N

Claim:
1. An image-based motion sensor, comprising: a camera system, arranged for generating an image output including a plurality of captured images; and a processing system, arranged for obtaining a motion sensor output by processing the image output, and identifying a user input as one of a plurality of pre-defined user actions according to the motion sensor output, wherein different functions of at least one application performed by one electronic device are controlled by the pre-defined user actions; and the motion sensor output includes information indicative of at least one of a motion status and an orientation status of the image-based motion sensor; wherein the camera system performs an RGB-to-YUV color transform upon one color image to generate one grayscale image, and only luminance values derived from the RGB-to-YUV color transform are involved in obtaining the motion sensor result.