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Video processing apparatus and video processing method

An image processing and image technology, applied in image data processing, image enhancement, image analysis and other directions, can solve the problem of high information complexity

Pending Publication Date: 2021-11-16
HITACHI LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because the image information is 3D space-time information composed of 2D space information and 1D time information, the complexity of the information is very high.

Method used

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  • Video processing apparatus and video processing method
  • Video processing apparatus and video processing method
  • Video processing apparatus and video processing method

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Embodiment approach 2

[0073] The behavior detection system of Embodiment 2 includes a behavior start / end likelihood judgment module 900 . Such as Figure 11 As shown, the module 900 includes a behavior start likelihood judgment module 900A and a behavior end likelihood judgment module 900B. The former calculates the behavior start likelihood 1200 based on the feature quantities of each frame input from the image feature quantity extraction module 212, and the latter The operator calculates the behavior end likelihood 1202 based on the feature quantity.

[0074] Behavior start / end likelihood judgment module 900 is composed of Gaussian Mixture Model (mixed Gaussian model) that constitutes K clusters (clusters) independently, and learns the start of behavior and the end of behavior based on frame data for training in advance, And the weight is learned based on the method of predictive coding, and based on the learning result, the likelihood of whether it is "the beginning of the behavior" or "the end...

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Abstract

The present invention provides an image processing technology capable of extracting feature quantities of the behavior of a moving body with high precision for an image composed of spatiotemporal information. A video processing apparatus that processes a video of a moving body captured by a camera is configured to sample frames output from the camera at a predetermined rate, gather the plurality of frames based on the direction of motion of the moving body calculated based on the sequence of a plurality of the frames, and extract a feature amount of the video by performing convolution processing based on the calculated direction.

Description

technical field [0001] The present invention relates to an image processing device and method thereof, in particular, to an image processing suitable for analyzing the behavior of a moving object in an image. Background technique [0002] Behavior analysis techniques for moving objects in images are expected to be applied in fields such as surveillance image analysis, health care, and life logs. Since video information is 3D spatiotemporal information composed of both 2D spatial information and 1D temporal information, the complexity of the information is high. [0003] Therefore, as a technology that has shown effectiveness in the field of static image analysis, the well-known convolutional neural network (Convolutional Neural Network) is also applied to the analysis of intra-image behavior. For example, Patent Document 1 below discloses an image processing device that applies a 2D convolution operation to a still image of each frame extracted from a video to calculate per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/246G06K9/62G06V10/82
CPCG06T7/246G06T2207/20081G06F18/2415G06T7/20G06T2207/10016G06T2207/30241G06V20/46G06V20/49G06V10/82G06T7/248G06T2207/30196G06T2207/30232G06V40/20
Inventor 孔全吉永智明村上智一
Owner HITACHI LTD