Patent ID: 9606636
Date: 2017-03-28
CPC Classifications: G06F,H04N

Claim:
1. An optical processing apparatus, comprising: a light source unit, being configured to provide a beam of light; a processing unit, being electrically connected to the light source unit and configured to define a frame rate, define a plurality of first time instants within a first time interval, and set the beam of light provided by the light source unit to a luminance value at each of the first time instants, wherein a length of the first time interval is shorter than a reciprocal of the frame rate and the luminance values are different and within a first range; and an image sensing unit, being electrically connected to the processing unit and configured to capture a first image by an exposure time length at each of the first time instants, wherein the exposure time lengths are the same, wherein the processing unit further calculates an image quality index of each of the first images, derives a comparison result by comparing the image quality indices with at least one threshold, and selects more than one of the first images as a plurality of first temporary images when the image quality indices do not meet the at least one threshold; wherein the processing unit further derives an averaged image by averaging the first temporary images and sets the averaged image as a first selected image representing the first time interval; wherein the processing unit further decides a second range corresponding to a second time interval according to the comparison result, the second time interval occurs later than the first time interval, a length of the second time interval is shorter than the reciprocal of the frame rate, the second range is different from the first range, the processing unit further defines a plurality of second time instants within the second time interval, the processing unit further sets the beam of light provided by the light source unit to a luminance value at each of the second time instants, the luminance values corresponding to the second time interval are different and within the second range, and the image sensing unit further captures a second image by the exposure time length at each of the second time instants.