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Motion vector detecting apparatus, motion vector detection method and computer program

A motion vector and detection device technology, applied in computing, image data processing, television, etc., can solve problems such as increasing hardware scale, increasing memory size, and reducing efficiency

Inactive Publication Date: 2007-03-07
SONY CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the efficiency is lowered, and the memory size for holding the pixel value must increase, causing a problem of increasing the scale of the hardware

Method used

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  • Motion vector detecting apparatus, motion vector detection method and computer program
  • Motion vector detecting apparatus, motion vector detection method and computer program
  • Motion vector detecting apparatus, motion vector detection method and computer program

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Embodiment Construction

[0138] Hereinafter, a motion vector detection device, a motion vector detection method, and a computer program according to the present invention will be described in detail with reference to the drawings. Instructions will be given in the following order of topics:

[0139] 1. Generate an outline of an estimated value table by the representative point matching method and the candidate vector method.

[0140] 2. The overall structure of the motion vector detection device and the process of motion vector detection processing.

[0141] 3. Details of the table generation process using the estimated value table based on the sign of the difference with the neighboring pixels.

[0142] 4. Details of estimated value table generation processing taking into account correlation information between representative points and adjacent representative points.

[0143] 5. A specific example of a table of estimates.

[0144] 6. Details of the determination process based on the motion vector...

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PUM

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Abstract

An apparatus and method are provided which produce a precise evaluation value table to realize an exact motion vector detection process. A weighting factor (W) is calculated based on information of correlation between representative point pixels and on flag correlation information based on flag data corresponding to pixel value difference data between a pixel of interest and its neighboring area pixels. A reliability index is produced based on the calculated weighting factor (W) and on an activity (A) serving as an indicator value indicative of complexity of picture data. Alternatively, a reliability index is produced based on a motion similarity between a representative point pixel and its neighboring pixels. An evaluation value table is produced in which evaluation values corresponding to the reliability indices have been integrated. In addition, a correlation determination is executed based on the pixel values or positions of featuring pixels on the periphery of the pixel of interest to determine a motion vector.

Description

technical field [0001] The invention relates to a motion vector detection device, a motion vector detection method and a computer program. Specifically, the present invention relates to a motion vector detection device, a motion vector detection method, and a computer program for detecting motion vectors from moving image data. Background technique [0002] With the recent improvements in the functions of information processing equipment and communication terminals, the development of high-speed communication infrastructure, and the spread of high-density recording media such as DVDs and Blu-ray Discs, distribution of moving image data via networks, movement using high-density recording media Storage and reproduction of image data and the like are prevailing. In view of this situation, it is desired that the efficiency or speed of data processing of moving image data such as encoding or the like be improved. [0003] For example, in motion-compensated image coding for effi...

Claims

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Application Information

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IPC IPC(8): H04N7/32G06T7/20G06T5/50H04N19/105H04N19/134H04N19/136H04N19/167H04N19/182H04N19/196H04N19/50H04N19/51H04N19/537H04N19/625
Inventor 近藤哲二高桥健治吉川和志石川贵规
Owner SONY CORP
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