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Image processing device and method and monitoring system

An image processing device and current image technology, applied in the field of image processing, can solve problems such as determining foreground images, and achieve the effect of improving accuracy

Active Publication Date: 2017-11-28
CANON KK
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, it is difficult to determine the exact reflectance of the foreground image via the Retinex theory, therefore, an approximate value estimated by existing mathematical techniques (such as low-frequency filtering method, etc.) is always used as the reflectance of the foreground image

Method used

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  • Image processing device and method and monitoring system
  • Image processing device and method and monitoring system
  • Image processing device and method and monitoring system

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Embodiment approach

[0033] For the above-mentioned first embodiment, the hardware structure 200 includes, for example, a CPU 210, a random access memory (RAM) 220, a storage device 230, an input device 240, an output device 250, an image acquisition device 260, a network interface 270, and a system bus 280 , and an image processing device 300 / 500 / 700. For the above-mentioned second implementation manner, for example, the hardware structure 200 will not include the above-mentioned image processing apparatus 300 / 500 / 700. And, in this embodiment, it can be pre-installed in the storage device 230 and will be referred to later Figure 8 / Figure 9 The described program corresponds to the image processing of the present invention, and when the CPU 210 needs to execute the corresponding program, the installed program can be loaded from the storage device 230 to the RAM 220 .

[0034] The CPU 210 is any suitable programmable control device (such as a processor, etc.), and executes subsequent various ...

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Abstract

The invention provides an image processing device and method and a monitoring system. The image processing device comprises a unit which is configured to obtain a current image and a background image, a unit which is configured to detect a foreground object from the current image according to the background image, a unit which is configured to determine a first parameter according to brightness information of the foreground object in the current image and the brightness information of a part corresponding to the foreground object and a unit which is configured to identify whether the foreground object is a pseudo foreground object according to the first parameter, wherein the first parameter represents a changing degree of a brightness direction of the part corresponding to the foreground object from the background image to the current image. The image processing device and method and the monitoring system can improve the precision of identifying the pseudo foreground object.

Description

technical field [0001] The present invention relates to image processing, and in particular to, for example, foreground object recognition and monitoring. Background technique [0002] In image processing, video refers to a sequence of images, and images are called frames. Typically, images are composed of visual elements, in other words, visual elements are visible properties that contribute to the representation of the image; where a visual element can be, for example, a pixel, a discrete cosine transform (DCT) block representing a group of pixels, or a representation with similar properties Superpixels for groups of pixels (eg, similar texture, similar color, similar brightness). [0003] During video surveillance, in order to track moving objects or emerging objects from frame to frame, first, it is necessary to refer to the background of the video (ie, background image or background model image) to detect foreground objects in the current frame. Among them, in the cur...

Claims

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Application Information

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IPC IPC(8): H04N7/18G06T7/20G06K9/00G06V10/60G06V10/50
CPCH04N7/181G06T2207/30232G06T2207/20224G06T2207/10016G06T2207/10024G06V20/52H04N7/18G06V10/50G06V10/60G06V10/758H04N7/183
Inventor 阳琴赵勖予
Owner CANON KK
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