Moving object detection apparatus and method
First Claim
1. A moving object detection apparatus, comprising:
- an image capture module that captures a plurality of images for one or more moving objects at different times;
an image align module that aligns said plurality of images captured at different times if said image capture module is situated on a movable platform;
a temporal differencing module that performs temporal differencing on said captured or aligned images to obtain a difference image;
a distance transform module that transforms said difference image into a distance map; and
a background subtraction module that applies said distance map to a background subtraction technology and compares with a current captured image to obtain moving object information.
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Abstract
Disclosed is directed to a moving object detection apparatus and method. The apparatus comprises an image capture module, an image alignment module, a temporal differencing module, a distance transform module, and a background subtraction module. The image capture module derives a plurality of images in a time series. The image alignment module aligns the images if the image capture module is situated on a movable platform. The temporal differencing module performs temporal differencing on the captured images or the aligned images, and generates a difference image. The distance transform module transforms the difference image into a distance map. The background subtraction module applies the distance map to background subtraction technology and compares the results with the current captured image, so as to obtain the information for moving objects.
209 Citations
15 Claims
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1. A moving object detection apparatus, comprising:
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an image capture module that captures a plurality of images for one or more moving objects at different times; an image align module that aligns said plurality of images captured at different times if said image capture module is situated on a movable platform; a temporal differencing module that performs temporal differencing on said captured or aligned images to obtain a difference image; a distance transform module that transforms said difference image into a distance map; and a background subtraction module that applies said distance map to a background subtraction technology and compares with a current captured image to obtain moving object information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A moving object detection method performed in a moving object detection apparatus, said apparatus having an image capture module, an image align module, a temporal differencing module, a distance transform module, and a background subtraction module, and said method comprising the steps of:
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capturing a plurality of images for one or more moving objects at different times using said image capture module; aligning said plurality of images captured at different times using said image align module if said captured images are on a movable platform; performing temporal differencing on said captured or aligned images using said temporal differencing module to obtain a difference image; transforming said difference image into a distance map using said distance transform module; and applying said distance map to a background subtraction technology and comparing with a current captured image using said background subtraction module to obtain moving object information. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification