Canon Kabushiki Kaisha

Zhonghua Ma

Ka-Ming Leung

I-Jan Eric Wang

Axel Lakus-Becker

Disclosed is a method of image coding for joint decoding of images from different viewpoints using distributed coding techniques. The method receives a first set of features () and error correction bits () corresponding to a first image () obtained at a first viewpoint () and a second set of features () from a second image () corresponding to a second viewpoint (). An approximation () of said first image () at said first viewpoint () is determined () an based on the first and second sets of features () and the second image at the second viewpoint. A reliability measure () of the approximation of the first image is then determined () by joint decoding () the approximation () using the error correction bits (). The approximation of the first image is then refined iteratively () based on the reliability measure () and image information () derived from the joint decoding.

Robust image alignment for distributed multi-view imaging systems

Methods, apparatuses (), and computer program products for generating an enhanced digital image () comprising a plurality of pixels are disclosed. Using a first digital image () captured from a first camera () and parity bits () generated from a second digital image captured by a second camera (), a third digital image () is constructed. The second camera () captures the second image at a resolution different to the resolution of the first camera () capturing the first image (). A disparity map () between the first image () and the third image () is determined (). One of the first image () and the third image () is enhanced () dependent upon the determined disparity map () to generate the enhanced digital image ().

Processing multi-view digital images

Disclosed is an apparatus () for generating a second compressed video stream () having a second resolution, from a first compressed video stream () having a first resolution. The apparatus comprises means () for extracting transform domain luma data and spatial domain chroma data from the first compressed video stream (), means (-) for applying a transform domain operation to the luma data to form reconstructed transform domain luma data, means () for applying a spatial domain operation to the chroma data to form reconstructed spatial domain chroma data, and means for scaling the reconstructed transform domain luma data and reconstructed spatial domain chroma data to generate the second compressed video stream.

High-performance video transcoding method

Disclosed is a method () and an apparatus () for generating a scaled motion vector for a particular output coding unit, the method comprising determining () statistics of motion data from an area-of-interest selecting () from a pre-defined set (-) of re-sampling filters a re-sampling filter dependent upon said determined statistics for the particular output coding unit, and applying the selected re-sampling filter to motion vectors from said area-of-interest to generate the scaled motion vector.

Growing community of inventors

North Epping, Australia

Zhonghua Ma