Method and device for detecting foreground in image sequence
A detection method and image sequence technology, which is applied in the field of image processing, can solve the problems of single type and low accuracy of foreground detection, and achieve the effect of improving detection accuracy
Active Publication Date: 2017-04-12
杭州智诺科技股份有限公司
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[0004] Aiming at the problem in the related art that the accuracy of foreground detection is too low due to the few and single types of samples compared with the current image, the present invention proposes a method and device for detecting the foreground in an image sequence, which can provide a variety of comparison samples with the current image. The images are compared to detect the foreground, which improves the detection accuracy of the foreground
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[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
[0047] According to an embodiment of the present invention, a method for detecting a foreground in an image sequence is provided.
[0048] Such as figure 2 As shown, the detection method according to the embodiment of the present invention may include:
[0049] Step S201, comparing the current image to be detected with at least two given images to obtain the similarity of the current image with respect to each given image, the given images include a pre-saved background image and at least o...
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The invention discloses a method and device for detecting a foreground in an image sequence. The detecting method comprises the steps that a current image to be detected is compared with at least two given images to obtain similarity between the current image and each given image, and the given images comprise a background image stored in advance and an image with at least one frame in front of the current image; according to the similarity between the current image and each given image and a scheduled similarity threshold, a detecting result of the foreground is determined. According to the method and device, the current image to be detected is compared with the multiframe image, then a comparison result is compared with the scheduled threshold, at least two image types exist in the multiframe image, and accuracy of detecting for the foreground can be improved.
Description
technical field [0001] The present invention relates to the field of image processing, and in particular, to a method and device for detecting a foreground in an image sequence. Background technique [0002] In video image analysis, separating the moving target from the background environment is the primary task of image-based target behavior analysis, and the accuracy of target detection directly affects the accuracy of video-based intelligent algorithms. Common moving target detection methods include background difference method, inter-frame difference method, optical flow method, etc. Among them, the background difference method is to detect the foreground by comparing the current frame image in the image sequence with the background reference model (that is, the background image). A method such as figure 1 Shown is a schematic diagram of foreground detection using the background subtraction method in the prior art. A comparison result 13 is obtained by comparing the ba...
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IPC IPC(8): H04N5/14G06T7/20
Inventor 章九九刘玉宇
Owner 杭州智诺科技股份有限公司