Object detection system
AssigneeKonica Minolta, Inc.
InventorShunsuke Takamura
Life of this patent
Estimating the term…
Abstract
An object detection system includes a depth image detector and a moving object extractor. The depth image detector detects a depth image from an external environment. The moving object extractor extracts a moving object desired to be extracted from the depth image. The moving object extractor registers in advance the depth image in a memory as a background while the moving object to be extracted does not exist, and extracts only a pixel whose current depth is present on a nearer side than a depth of the background as a candidate for a pixel corresponding to the moving object to be extracted.
Claims2
An object detection system comprising:
- a depth image detector that detects a depth image from an external environment;
- and
- a moving object extractor that extracts a moving object desired to be extracted from the depth image,
- wherein the moving object extractor registers in advance the depth image in a memory as a background while the moving object to be extracted does not exist, and extracts only a pixel whose current depth is present on a nearer side than a depth of the background as a candidate for a pixel corresponding to the moving object to be extracted;
- wherein the moving object extractor further makes a determination to extract, as the moving object to be extracted, a pixel from a pixel group composed of pixels of the candidates having been extracted, and for a portion not extracted as the moving object to be extracted, updates and registers a depth of the pixel in the memory as the depth of the background;
- and
- wherein the moving object extractor determines a size of the pixel group, compares the size of the pixel group to a threshold value, and when the size of the pixel group exceeds the threshold value the pixel group is registered as background.
Dependencies are inferred from the claim text.