Patent ID: 9609233
Date: 2017-03-28
CPC Classifications: G06T,H04N

Claim:
1. A method of adjusting a set of luminance values associated with a set of visual elements in a current frame of a video sequence for object detection, the method comprising the steps of: determining, for each of a plurality of scenarios, a set of adjusted luminance values based on a corresponding luminance compensation value, each scenario being based on a current frame brightness level and a previous frame brightness level; accumulating, for each scenario, an associated set of brightness counts and darkness counts of the current frame based on the set of adjusted luminance values; calculating a metric for each scenario based on the associated set of brightness counts and darkness counts; selecting one of the plurality of scenarios based on the calculated metric, and evaluation of the calculated metric for each of the plurality of scenarios; and selecting the set of adjusted luminance values associated with the selected scenario as an adjusted set of luminance values associated with the current frame of the video sequence.