#### DMCA

## Title: Edge-Adaptive Image Interpolation Techniques

### Citations

3137 | A wavelet tour of signal processing - Mallat - 1998 |

351 |
Digital Image Processing
- Pratt
- 1991
(Show Context)
Citation Context ...n the same directional edge, impulse noise can be generated by an external intervention or false estimation of edge detection. Noise cancellation To perform noise cancellation, a pseudo-median filter =-=[14]-=- is used. A pseudo-median filter possesses many of the properties of a median filter, but is computationally much simpler. A 3 × 3 plus-shape pseudo-median filter, as shown in Figure 2.5, is used in t... |

289 |
Digital Coding of Waveforms: Principles and Applications to Speech and Video. Englewood Cli s
- Jayant
- 1984
(Show Context)
Citation Context ...as proposed by Xin Li, is a non-iterative orientation-adaptive interpolation scheme for natural-image sources. The motivation for this method comes from the fundamental property of an ideal step edge =-=[10]-=-, i.e. that the image intensity field evolves more slowly along the edge orientation than across it. The ELA method, described in Chapter 2, quantizes the edge orientation into a finite number of choi... |

238 | New edge-directed interpolation
- Li, Orchard
- 2001
(Show Context)
Citation Context ...4 c○ Koninklijke Philips Electronics NV 2003sChapter 3 Edge-Directed Interpolation The“New Edge-Directed Interpolation” (NEDI) was proposed by Xin Li and Michael Orchard in a recently published paper =-=[6]-=- and is also part of Xin Li’s PhD-thesis [7] at Princeton University. In this chapter, we explain the principles of the method and the implementation of the algorithm used for the final evaluation. Re... |

229 |
Foundations of vision
- Wandell
- 1995
(Show Context)
Citation Context ...d as mean = 1 4 1� i=0 1� F j=0 � � 2i − 1 �x + 2j − 1 � � , n (2.7) We have doubts that the statement that noise is generated in darker areas is correct. Although, according to the Weber-Fechner law =-=[20, 21, 22, 23]-=-, the gain is higher in dark parts of the picture, we must take into account the gamma-curve of the CRT. The product of the Weber-Fechner curve and the gamma is almost linear, as can be seen in Figure... |

170 |
Cubic splines for image interpolation and digital filtering
- Hou, Andrews
- 1978
(Show Context)
Citation Context ...ems. The method consists on estimating the missing pixel values among samples of pixels. Classical linear interpolation techniques such as nearest neighbor, bilinear [15, 16] or bicubic interpolation =-=[4, 17]-=- are simple and hence popular, but they all produce images with various artifacts, especially around edges in the image. Edges are the most prevalent feature in images. Sharpness and freedom from arti... |

128 |
Comparison of interpolating methods for image resampling
- Parker, Kenyon, et al.
- 1983
(Show Context)
Citation Context ...ems. The method consists on estimating the missing pixel values among samples of pixels. Classical linear interpolation techniques such as nearest neighbor, bilinear [15, 16] or bicubic interpolation =-=[4, 17]-=- are simple and hence popular, but they all produce images with various artifacts, especially around edges in the image. Edges are the most prevalent feature in images. Sharpness and freedom from arti... |

57 |
Sub-pixel motion estimation with 3-d recursive search block-matching
- Haan, Biezen
- 1994
(Show Context)
Citation Context ...alues added to C and �y must take into account the motion, so their positions must be compensated for by a motion vector, previously calculated using the “3D Recursive Search Block Matcher” algorithm =-=[3]-=-. Denoting the motion vector for pixel at position �x in the current frame, n, as � D (�x, n), the pixel positions in frames n-1 and n+1 become F (�x, n − 1) ≈ F F (�x, n + 1) ≈ F � �x − � � D, n � �x... |

36 | Deinterlacing{An overview
- Haan, Bellers
- 1998
(Show Context)
Citation Context ...ound throughout the video chain. If we describe interlacing as a form of spatio-temporal sub-sampling, then de-interlacing is the reverse operation aiming at the removal of the sub-sampling artifacts =-=[2, 1, 11]-=-. The major flaw of interlace is that it complicates many image processing tasks. Particularly, it complicates scanning-format conversions. These were necessary in the past mainly for international pr... |

32 | Video processing for multimedia systems
- Haan
- 2003
(Show Context)
Citation Context ...ound throughout the video chain. If we describe interlacing as a form of spatio-temporal sub-sampling, then de-interlacing is the reverse operation aiming at the removal of the sub-sampling artifacts =-=[2, 1, 11]-=-. The major flaw of interlace is that it complicates many image processing tasks. Particularly, it complicates scanning-format conversions. These were necessary in the past mainly for international pr... |

23 |
The Art of Digital Video
- Watkinson
- 1991
(Show Context)
Citation Context ...ound throughout the video chain. If we describe interlacing as a form of spatio-temporal sub-sampling, then de-interlacing is the reverse operation aiming at the removal of the sub-sampling artifacts =-=[2, 1, 11]-=-. The major flaw of interlace is that it complicates many image processing tasks. Particularly, it complicates scanning-format conversions. These were necessary in the past mainly for international pr... |

22 |
Adaptive interpolation technique for scanning rate conversion
- Kuo, Liao, et al.
- 1996
(Show Context)
Citation Context .... 2 c○ Koninklijke Philips Electronics NV 2003sChapter 2 Edge-directional Line Averaging One of the most popular algorithms used to improve pixel interpolation is Edgedirectional Line Averaging (ELA) =-=[12, 13]-=-. The ELA method is widely used because it only requires a small amount of computation and can be easily implemented in hardware. In this chapter, the modified ELA algorithm described in [5] is presen... |

8 |
A study of Television Image Characteristics. Part Two. Determination of Frame Frequency for Television in terms of Flicker Characteristics
- Engstrom
- 1935
(Show Context)
Citation Context ...ore blurred. The unsharp masking is not performing as expected. 2.2 Applications of ELA 2.2.1 De-interlacing The human visual system is less sensitive to flickering details than to large-area flicker =-=[18]-=-. Television displays apply interlacing to profit from this fact, while broadcast formats were originally defined to match the display scanning format. As a consequence, interlace is found throughout ... |

7 |
Edge Directed Prediction for Lossless Compression of Natural Images", submitted to
- Li, Orchard
- 1999
(Show Context)
Citation Context ...dge orientation than across it. The ELA method, described in Chapter 2, quantizes the edge orientation into a finite number of choices (five), which affects the accuracy of the imposed edge model. In =-=[8]-=-, it is shown that covariance-based adaptation is able to tune the prediction support to match an arbitrarily oriented edge, i.e. the method has the same performance for any edge orientation. The prin... |

7 |
Fundamentals of Electronic Imaging Systems Some Aspects
- Schreiber
- 1993
(Show Context)
Citation Context ...d as mean = 1 4 1� i=0 1� F j=0 � � 2i − 1 �x + 2j − 1 � � , n (2.7) We have doubts that the statement that noise is generated in darker areas is correct. Although, according to the Weber-Fechner law =-=[20, 21, 22, 23]-=-, the gain is higher in dark parts of the picture, we must take into account the gamma-curve of the CRT. The product of the Weber-Fechner curve and the gamma is almost linear, as can be seen in Figure... |

6 |
Edge directed statistical inference with applications to image processing
- Li
- 2000
(Show Context)
Citation Context ...sChapter 3 Edge-Directed Interpolation The“New Edge-Directed Interpolation” (NEDI) was proposed by Xin Li and Michael Orchard in a recently published paper [6] and is also part of Xin Li’s PhD-thesis =-=[7]-=- at Princeton University. In this chapter, we explain the principles of the method and the implementation of the algorithm used for the final evaluation. Results of this evaluation are shown in Chapte... |

6 |
A teleological explanation of Weber’s law and the motor unit size
- Hatze
- 1979
(Show Context)
Citation Context ...d as mean = 1 4 1� i=0 1� F j=0 � � 2i − 1 �x + 2j − 1 � � , n (2.7) We have doubts that the statement that noise is generated in darker areas is correct. Although, according to the Weber-Fechner law =-=[20, 21, 22, 23]-=-, the gain is higher in dark parts of the picture, we must take into account the gamma-curve of the CRT. The product of the Weber-Fechner curve and the gamma is almost linear, as can be seen in Figure... |

1 |
Adaptive Scan RateUp Conversion Based on Human Human Visual Characteristics
- Lee, Park, et al.
- 2000
(Show Context)
Citation Context ...ELA) [12, 13]. The ELA method is widely used because it only requires a small amount of computation and can be easily implemented in hardware. In this chapter, the modified ELA algorithm described in =-=[5]-=- is presented, with the corresponding simulation model. The results of this simulation are shown in Chapter 5. 2.1 The Modified ELA algorithm The ELA algorithm uses a directional correlation between t... |

1 |
A new algorithm for interlaced to progressive based on directional correlations and its IC design
- Lee, Kim, et al.
- 1994
(Show Context)
Citation Context .... 2 c○ Koninklijke Philips Electronics NV 2003sChapter 2 Edge-directional Line Averaging One of the most popular algorithms used to improve pixel interpolation is Edgedirectional Line Averaging (ELA) =-=[12, 13]-=-. The ELA method is widely used because it only requires a small amount of computation and can be easily implemented in hardware. In this chapter, the modified ELA algorithm described in [5] is presen... |

1 |
Compressor function for analogue HDTV component signals”, Signal Processing
- Schertz
- 1990
(Show Context)
Citation Context |