Shadow removal video analysis system
AssigneeNEC Corporation
InventorKeiichi Urashita
Life of this patent
Estimating the term…
Abstract
A video analysis system includes: a video data acquiring means that acquires video data; a moving object detecting means that detects a moving object from video data acquired by the video data acquiring means, by using a moving object detection parameter, which is a parameter for detecting a moving object; an environment information collecting means that collects environment information representing an external environment of a place where the video data acquiring means is installed; and a parameter changing means that changes the moving object detection parameter used when the moving object detecting means detects a moving object, on the basis of the environment information collected by the environment information collecting means.
Claims18
A video analysis system comprising:
- at least one memory storing instructions;
- and
- at least one processor executing the instructions to perform;
- acquiring video data acquired at a predetermined location;
- detecting a moving object from the video data by using a moving object detection parameter, the moving object detection parameter being a parameter for detecting a moving object;
- and
- collecting environment information for specifying one or more causes making a shadow;
- wherein
- the at least one processor further performs;
- removing the shadow from the moving object, using a shadow removal threshold to distinguish the moving object from the shadow;
- and
- changing the shadow removal threshold representing a length or a density of the shadow, in accordance with the environment information including information representing time or date.
A video analysis method comprising:
- acquiring video data acquired at a predetermined location;
- detecting a moving object from the video data by using a moving object detection parameter, the moving object detection parameter being a parameter for detecting a moving object;
- and
- collecting environment information for specifying one or more causes making a shadow;
- wherein
- the at least one processor further performs;
- removing the shadow from the moving object, using a shadow removal threshold to distinguish the moving object from the shadow;
- and
- changing the shadow removal threshold representing a length or a density of the shadow, in accordance with the environment information including information representing time or date.
A non-transitory computer-readable storage medium storing a program causing a computer to perform:
- acquiring video data acquired at a predetermined location;
- detecting a moving object from the video data by using a moving object detection parameter, the moving object detection parameter being a parameter for detecting a moving object;
- and
- collecting environment information for specifying one or more causes making a shadow;
- wherein
- the at least one processor further performs;
- removing the shadow from the moving object, using a shadow removal threshold to distinguish the moving object from the shadow;
- and
- changing the shadow removal threshold representing a length or a density of the shadow, in accordance with the environment information including information representing time or date.
Dependencies are inferred from the claim text.