Intensity-based image modification for computer vision

A computer vision system, comprising:

• a computing system of one or more computing devices programmed with instructions executable by the computing system to:
• receive a time-based series of images captured via a camera;
• for a subject image of the time-based series, identify a light intensity value for each pixel of a set of pixels of the subject image;
• define a light intensity threshold for the subject image based on a size of a bounding region for an object detected within a previous image of the time-based series captured before the subject image;
• generate a modified image for the subject image by one or both of:
• reducing the light intensity value of each pixel of a lower intensity subset of pixels of the subject image that is less than the light intensity threshold, and
• increasing the light intensity value of each pixel of a higher intensity subset of pixels of the subject image that is greater than the light intensity threshold.

A computer vision method performed by a computing system, the method comprising:

• receiving a time-based series of images;
• for a subject image of the time-based series, identifying a light intensity value for each pixel of a set of pixels of the subject image, wherein the set of pixels forms a portion of the subject image;
• defining a light intensity threshold for the subject image;
• generating a modified image for the subject image by one or both of:
• reducing the light intensity value of each pixel of a lower intensity subset of pixels of the subject image that is less than the light intensity threshold by an amount that is based on a downward scaling factor applied to the lower intensity subset of pixels, and
• increasing the light intensity value of each pixel of a higher intensity subset of pixels of the subject image that is greater than the light intensity threshold by an amount that is based on an upward scaling factor applied to the higher intensity subset of pixels.