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Motion vector detection device, motion vector detection method, and program

A motion vector and detection device technology, applied in image data processing, television, instruments, etc., can solve problems such as high-precision detection images, achieve reliability evaluation and improve accuracy

Inactive Publication Date: 2010-02-03
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the block matching method, processing is performed in units of blocks, so it is not necessarily possible to detect motion in the image of each frame with high accuracy

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  • Motion vector detection device, motion vector detection method, and program
  • Motion vector detection device, motion vector detection method, and program
  • Motion vector detection device, motion vector detection method, and program

Examples

Experimental program
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Embodiment Construction

[0053] refer to Figures 1 to 23 , an example of an embodiment of the present invention will be described in the following order: 1. Outline of an overall structure for detecting a motion vector ( figure 1 ); 2. Summary of overall processing for detecting motion vectors ( figure 2 , Figure 6A with 6B ); 3. An example of the structure used to generate the selected pixel data ( image 3 , Figures 6A to 8 ); 4, the structural example of the motion vector extraction unit ( Figure 4 ); 5. Example processing for generating selected pixel data ( Figure 5 ); 6. An example of processing for assessing the reliability of evaluation value table data (using only the example of the lower layer) ( Figure 9 ); 7. A description of the principles used to assess the reliability of the value table data ( Figure 10A with 10B ); 8. An example of processing for assessing the reliability of evaluation value table data (examples using lower and upper layers) ( Figure 11 ); 9. A descr...

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Abstract

The invention relates to a motion vector detection device, a motion vector detection method and a program. The motion vector detection device includes: an evaluation value information creation unit creating, from correlation information of a target pixel in one frame and a reference pixel in another frame in moving image data including frames, evaluation value information evaluating the possibility that the reference pixel is a candidate for the destination of motion from the target pixel; a motion vector extraction unit extracting motion vector candidates of each of the pixels in a frame by using the evaluation value information, comparing, for the extracted candidates, the pixels in an area around the target pixel and the pixels in the area around the reference pixel, evaluating the candidate vectors of the evaluation value information by using the result of comparison in the entire area, and extracting motion vectors having a high evaluation value as candidates; and a motion vectordetermination unit determining a motion vector among the extracted motion vectors.

Description

technical field [0001] The present invention relates to a motion vector detection device and a motion vector detection method suitably applied to detect motion vectors from moving image data to perform image processing such as high-efficiency encoding, and a program for performing motion vector detection processing thereof. Background technique [0002] In the past, in the field of moving image processing, effective image processing was performed using motion information (ie, the direction and magnitude of motion of objects in images at different times). For example, the results of motion detection have been used in motion-compensated inter-coding performed in high-efficiency image coding and motion-based parameter control performed in television noise reduction devices using inter-frame temporal filters. As a method of detecting motion, a block matching method is generally used. In the block matching method, an image of one frame is divided into block units each including ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N19/50G06T7/20H04N19/105H04N19/136H04N19/139H04N19/189H04N19/196H04N19/51H04N19/533
CPCH04N19/00696H04N7/362H04N7/26765H04N7/26872H04N19/00733H04N19/00587H04N19/51H04N19/52
Inventor 铁川弘树近藤哲二郎高桥健治吉川和志武田直己石川贵规
Owner SONY CORP