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Characteristic analysis of Otsu threshold and its applications
tl;dr
This paper proves that Otsu threshold is equal to the average of the mean levels of two classes partitioned by this threshold. Expand
  • 215
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An Efficient Color-Impulse Detector and its Application to Color Images
tl;dr
We propose an efficient color-impulse detector for switching vector median filters that can effectively separate impulsive noise and noise-free pixels. Expand
  • 53
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A switching vector median filter based on the CIELAB color space for color image restoration
tl;dr
We propose a switching vector filter which analyzes the color difference of two pixels in the CIELAB color space using four directional operators. Expand
  • 81
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Two-stage quaternion switching vector filter for color impulse noise removal
tl;dr
A new color distance measure method based on quaternion representation. Expand
  • 22
  • 3
Color impulsive noise removal based on quaternion representation and directional vector order-statistics
tl;dr
A new method for detecting and suppressing impulsive noise in color images is presented in this paper, where the impulse detection is based on the order-statistic information about the color samples in the horizontal, vertical, and diagonal directions. Expand
  • 22
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Mobile traffic offloading by exploiting social network services and leveraging opportunistic device-to-device sharing
tl;dr
The ever increasing traffic demand is becomming a serious concern for mobile network operators. Expand
  • 28
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Quaternion-Based Impulse Noise Removal From Color Video Sequences
tl;dr
In this paper, a new quaternion vector filter for removal of random impulse noise in color video sequences is presented. Expand
  • 28
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Improved direction estimation for Di Zenzo's multichannel image gradient operator
tl;dr
We propose a new multichannel gradient estimator based on Di Zenzo's gradient operator, which is based on squared local contrast variation. Expand
  • 15
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Combining vector ordering and spatial information for color image interpolation
tl;dr
A new idea for color image zooming techniques is introduced in this paper. Expand
  • 7
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Quaternion Switching Vector Median Filter Based on Local Reachability Density
tl;dr
This paper proposes a new color distance metric based on quaternion theory to measure the difference between two color pixels and then combines the distance metric to construct a new impulse detector. Expand
  • 3
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