Image processing apparatus and method, and storage medium storing instruction

An image processing method comprising:

• an acquiring step of acquiring a current video frame and a scene model based on an input video, wherein the scene model includes visual element models that represent at least appearance features of visual elements in the current video frame and its previous video frames;
• a determining step of determining, based on the visual elements in the current video frame, the visual element models in the scene model to be visual element models necessary to be corrected and visual element models unnecessary to be corrected;
• and
• a correcting step of correcting the visual element models necessary to be corrected based on reference visual element models,
• wherein the reference visual element models are visual element models in the scene model, that are determined to be the visual element models unnecessary to be corrected based on each of the current video frame and its previous video frames, and
• wherein similarities among the appearance features of the reference visual element models and the visual element models necessary to be corrected in the previous video frames, satisfy a predetermined condition.

A non-transitory computer-readable storage medium storing an instruction for executing an image processing method comprising:

• an acquiring step of acquiring a current video frame and a scene model based on an input video, wherein the scene model includes visual element models that represent at least appearance features of visual elements in the current video frame and its previous video frames;
• a determining step of determining, based on the visual elements in the current video frame, the visual element models in the scene model to be visual element models necessary to be corrected and visual element models unnecessary to be corrected;
• and
• a correcting step of correcting the visual element models necessary to be corrected based on reference visual element models,
• wherein the reference visual element models are visual element models in the scene model, that are determined to be the visual element models unnecessary to be corrected based on each of the current video frame and its previous video frames, and
• wherein similarities among the appearance features of the reference visual element models and the visual element models necessary to be corrected in the previous video frames, satisfy a predetermined condition.