# ZORAN (FRANCE)

ZORAN (FRANCE) Patent applications | ||

Patent application number | Title | Published |
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20130069975 | IMAGE INTERPOLATION METHOD WITH DECISION MIXING - The method comprises for a pixel of an output grid which is not on an input grid on which pixel values are received in an input signal: determining a loss value for each of a plurality of candidate interpolators by analyzing the pixel values of the input grid along a direction associated with the candidate interpolator; selecting at least one interpolator by minimizing the loss value; and determining an output pixel value. At least two interpolation modes are provided, including: a first mode in which one interpolator is selected and the output pixel value is deter mined as an interpolated value obtained by applying locally the selected interpolator to pixel values of the input grid; and a second mode in which more than one interpolator is selected and the output pixel value is determined as a weighted sum of a plurality of interpolated values obtained by applying locally the selected interpolators. | 03-21-2013 |

20130051703 | METHOD FOR DETECTING DIRECTIONS OF REGULARITY IN A TWO-DIMENSIONAL IMAGE - When analyzing an image signal having pixel values defined on a sampling grid, the method detects at least one direction of regularity of the image signal in relation to a pixel of the sampling grid. This detection comprises computing a respective loss value associated with at least one direction in a set of directions, and selecting at least one direction of regularity by minimizing the loss value. The loss value associated with a direction (u, v), where u is a horizontal coordinate and v a vertical coordinate, has an axial loss component measuring variations of the pixel values in at least one linear array of pixels. This linear array is a horizontal array |u/v|>1 and a vertical array |u/v|<1. | 02-28-2013 |

20130050272 | TWO-DIMENSIONAL SUPER RESOLUTION SCALING - For scaling an input image into an output image, the method comprises, for a point of the output sampling grid which is not in the input sampling grid: calculating a plurality of interpolated pixel values by applying respective interpolators; determining respective loss values associated with the interpolated pixel values; and providing a pixel value of the output image using at least one of the interpolated pixel values selected by minimizing the loss value. The set of interpolators includes two-dimensional interpolators I | 02-28-2013 |

20130033570 | STEREOSCOPIC VIDEO SIGNAL PROCESSOR WITH ENHANCED 3D EFFECT - An input stereoscopic video signal has a first frame sequence (S | 02-07-2013 |

20130022283 | CADENCE DETECTION FOR INTERLACED VIDEO BASED ON TEMPORAL REGULARITY - A method is proposed for analyzing an interlaced video signal including a first sequence of fields. A temporal regularity estimation process is applied to the first sequence of fields to compute a first metric. Inputs of the temporal regularity estimation process include pixel values from at least two fields having respective ranks differing by more than one in the sequence. The same temporal regularity estimation process is applied to second and third sequences of fields to compute second and third metrics. The second sequence is derived from the first sequence by swapping fields having ranks of the form 2k and 2k+1 for any integer k, while the third sequence is derived from the first sequence by swapping fields having ranks of the form 2k−1 and 2k. The first, second and third metrics are compared in a determination of the time arrangement of the fields in the first sequence. | 01-24-2013 |

20130002947 | VIDEO INTERPOLATION METHOD AND APPARATUS WITH SMOOTH FALLBACK INTERPOLATION MODE - Evolution of a scene represented in a video sequence of input frames is analyzed. Output pixels of an output frame having a time position intermediate between time positions of the input frames are computed by combining respective input pixels of the input frames. At least three interpolation modes are provided for computing the output pixels, including (i) a first mode in which the combined input pixels for an output pixel are selected based on a position of the output pixel in the output frame and a default interpolation vector, (ii) a second mode in which the combined input pixels are selected based on the output pixel position and at least one first interpolation vector determined for the output pixel when analyzing scene evolution, and (iii) a third mode in which the combined input pixels are selected based on the output pixel position and at least one second interpolation vector that is intermediate between the default interpolation vector and a respective first interpolation vector determined for the output pixel when analyzing scene evolution. | 01-03-2013 |

20110096227 | FRAME RATE CONVERSION WITH MOTION ESTIMATION IN A PLURALITY OF RESOLUTION LEVELS - Multiscale coefficients for each input video frame are distributed into K>1 groups. A first group of coefficients provides a representation of the frame at a first resolution level. For each integer k (1 | 04-28-2011 |

20100135400 | Processing Or Compressing N-dimensional Signals With Warped Wavelet Packets And Bandelets - A method and apparatus for processing or compressing an n-dimensional digital signal by constructing a sparse representation which takes advantage of the signal geometrical regularity. The invention comprises a warped wavelet packet transform which performs a cascade of warped subband filtering along warping grids of sampling points adapted to the signal geometry. It also comprises a bandeletisation which decorrelates the warped wavelet packet coefficients to produce a sparse representation. An inverse warped wavelet packet transform and an inverse bandeletisation reconstruct a signal from its bandelet representation. The invention comprises a compression system which quantizes and codes the bandelet representation, a decompression system, a restoration system which enhances a signal by filtering its bandelet representation, and a feature vector extraction system for pattern recognition applications of a bandelet representation. | 06-03-2010 |

20090278981 | METHOD AND APPARATUS FOR ROBUST SUPER-RESOLUTION VIDEO SCALING - A method and apparatus for scaling video images, which applies more particularly to techniques for converting video sequence formats and deinterlacing. The invention comprises a parameterized interpolation ( | 11-12-2009 |