Periodic stationary object detection system and periodic stationary object detection method
First Claim
1. A periodic stationary object detection system for detecting a periodic stationary object in surroundings of a moving object, comprising:
- an image-capturing device mounted on the moving object and capable of capturing an image of the surroundings of the moving object;
a viewpoint converting unit configured to perform viewpoint conversion on the image captured by the image-capturing device to create a bird'"'"'s eye view image;
a feature point-extracting unit configured to extract a feature point of a three-dimensional object from image data on a predetermined region of the bird'"'"'s eye view image for each of a plurality of sub regions included in the predetermined region;
a waveform data-calculating unit configured to calculate waveform data corresponding to a distribution of the feature points extracted by the feature point-extracting unit in the predetermined region on the bird'"'"'s eye view image;
a peak information detecting unit configured to detect peak information of the waveform data;
a periodic stationary object candidate-detecting unit configured to judge whether or not the three-dimensional object having the feature point extracted by the feature point-extracting unit is a periodic stationary object candidate on a basis of whether or not the peak information is equal to or larger than a predetermined first threshold value; and
a periodic stationary object judging unit configured to determine that the periodic stationary object candidate is a periodic stationary object when the periodic stationary object candidate is detected by the periodic stationary object candidate-detecting unit and the detection is made under a predetermined condition.
1 Assignment
0 Petitions
Accused Products
Abstract
A periodic stationary object detection system extracts a feature point of a three-dimensional object from image data on a predetermined region of a bird'"'"'s eye view image for each of multiple sub regions included in the predetermined region, calculates waveform data corresponding to a distribution of the feature points in the predetermined region on the bird'"'"'s eye view image, and judges whether or not the three-dimensional object having the extracted feature point is a periodic stationary object candidate on the basis of whether or not peak information of the waveform data is equal to or larger than a predetermined threshold value.
-
Citations
16 Claims
-
1. A periodic stationary object detection system for detecting a periodic stationary object in surroundings of a moving object, comprising:
-
an image-capturing device mounted on the moving object and capable of capturing an image of the surroundings of the moving object; a viewpoint converting unit configured to perform viewpoint conversion on the image captured by the image-capturing device to create a bird'"'"'s eye view image; a feature point-extracting unit configured to extract a feature point of a three-dimensional object from image data on a predetermined region of the bird'"'"'s eye view image for each of a plurality of sub regions included in the predetermined region; a waveform data-calculating unit configured to calculate waveform data corresponding to a distribution of the feature points extracted by the feature point-extracting unit in the predetermined region on the bird'"'"'s eye view image; a peak information detecting unit configured to detect peak information of the waveform data; a periodic stationary object candidate-detecting unit configured to judge whether or not the three-dimensional object having the feature point extracted by the feature point-extracting unit is a periodic stationary object candidate on a basis of whether or not the peak information is equal to or larger than a predetermined first threshold value; and a periodic stationary object judging unit configured to determine that the periodic stationary object candidate is a periodic stationary object when the periodic stationary object candidate is detected by the periodic stationary object candidate-detecting unit and the detection is made under a predetermined condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A periodic stationary object detection method for detecting periodic stationary objects in surrounding of a moving object, comprising:
-
an image-capturing step of capturing an image of the surroundings of the moving object using an image-capturing device mounted on the moving object; a viewpoint converting step of performing viewpoint conversion on the image captured by the image-capturing device to create a bird'"'"'s eye view image; a feature point-extracting step of extracting a feature point of a three-dimensional object from image data on a predetermined region of the bird'"'"'s eye view image for each of a plurality of sub regions included in the predetermined region; a waveform data-calculation step of calculating waveform data corresponding to a distribution of the feature points extracted in the feature point-extracting step in the predetermined region on the bird'"'"'s eye view image; a peak information-detecting step of detecting peak information of the waveform data; a periodic stationary object candidate-detecting step of judging whether or not the three-dimensional object having the feature point extracted in the feature point-extracting step is a periodic stationary object candidate on a basis of whether or not the peak information is equal to or larger than a predetermined first threshold value; and a periodic stationary object-judging step of determining that the periodic stationary object candidate is a periodic stationary object when the periodic stationary object candidate is detected in the periodic stationary object candidate-detecting step and the detection is made under a predetermined condition.
-
-
16. A periodic stationary object detection system for detecting a periodic stationary object in surroundings of a moving object, comprising:
-
image-capturing means for capturing an image of the surroundings of the moving object, the image-capturing means being mounted on the moving object; viewpoint converting means for performing viewpoint conversion on the image captured by the image-capturing means to create a bird'"'"'s eye view image; feature point-extracting means for extracting a feature point of a three-dimensional object from image data on a predetermined region of the bird'"'"'s eye view image for each of a plurality of sub regions included in the predetermined region; waveform data-calculating means for calculating waveform data corresponding to a distribution of the feature points extracted by the feature point-extracting means in the predetermined region on the bird'"'"'s eye view image; peak information detecting means for detecting peak information of the waveform data; periodic stationary object candidate-detecting means for judging whether or not the three-dimensional object having the feature point extracted by the feature point-extracting means is a periodic stationary object candidate on a basis of whether or not the peak information is equal to or larger than a predetermined first threshold value; and periodic stationary object judging means for determining that the periodic stationary object candidate is a periodic stationary object when the periodic stationary object candidate is detected by the periodic stationary object candidate-detecting means and the detection is made under a predetermined condition.
-
Specification