Title:
映像ノイズ分析装置、残留ポイント・ノイズ検出方法及び欠陥画素検出方法
Document Type and Number:
Japanese Patent JP6755110
Kind Code:
B2
Abstract:
A video noise analyzer for detecting residual point noise in a video generates a list of candidate defective pixels by joining results of a temporal invariance detector and a spatial outlier detector. A data store is structured to contain data describing the candidate defective pixels and/or the blocks from which the pixels were selected. In other embodiments, a video noise analyzer includes a first salient analyzer structured to compare pixels within a block to a mean value of other pixels within the same block, a first threshold processor to generate a first pixel candidate list including pixels that differ significantly from their neighboring pixels, a second salient analyzer structured to generate a difference value between a subject pixel, its neighboring pixels, and neighbors of the neighboring pixels, and an identifier to label as a candidate dead pixel those pixels having a frequency occurrence of visual saliency greater than a predefined frequency threshold.
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Inventors:
Gee Yuan
Onker Nasu Tiwari
Arbind Nayak
G V Vallapsad
Onker Nasu Tiwari
Arbind Nayak
G V Vallapsad
Application Number:
JP2016075504A
Publication Date:
September 16, 2020
Filing Date:
April 04, 2016
Export Citation:
Assignee:
Project Giants LRC
International Classes:
H04N5/367; H04N5/21; H04N5/232
Domestic Patent References:
| JP2012070319A | ||||
| JP2000041187A |
Attorney, Agent or Firm:
Yamaguchi International Patent Office