Patent ID: 9621868
Date: 2017-04-11
CPC Classifications: G01S,H04N

Claim:
1. An image capture method performed by a depth sensor, the method comprising: emitting a first source signal having a first amplitude towards a scene, and thereafter, emitting a second source signal having a second amplitude different from the first amplitude towards the scene; capturing a first image in response to a first reflected signal that is a reflected portion of the first source signal, and thereafter, capturing a second image in response to a second reflected signal that is a reflected portion of the second source signal; and interpolating the first and second images to generate a final image, wherein: the second amplitude is greater than the first amplitude, the first source signal having the first amplitude is used to capture a near point of the scene that is relatively close to the depth sensor, the second source signal having the second amplitude is used to capture a distal point of the scene that is relatively far from the depth sensor, a first object in the first image relatively far from the depth sensor is distorted, and a second object in the second image relatively close to the depth sensor is distorted, the capturing of the first image in response to the first reflected signal comprises: the capturing of the second image in response to the second reflected signal comprises: the converting the first reflected signal into the first image comprises demodulating the first reflected signal with an N-times sampling operation, the converting the second reflected signal into the second image comprises demodulating the second reflected signal with another N-times sampling operation, and N is an integer greater than one.