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Method and system for encoding and decoding frames of a digital image stream

A digital image, coding technology, applied in the field of digital image transmission, can solve problems such as increasing the quality level

Inactive Publication Date: 2011-12-28
SENSIO TECHNOLOGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is still a lot of room for improvement, especially when it comes to increasing the quality level of the reconstructed image stream at the receiving end

Method used

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  • Method and system for encoding and decoding frames of a digital image stream
  • Method and system for encoding and decoding frames of a digital image stream
  • Method and system for encoding and decoding frames of a digital image stream

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Embodiment Construction

[0020] It should be understood that the expressions "decode" and "decompress", and the expressions "encode" and "compress" are used interchangeably in this specification. Furthermore, although examples of implementations of the present invention are described herein with reference to three-dimensional stereoscopic images, such as movies, it should be understood that the scope of the present invention encompasses other types of video images as well.

[0021] Fig. 1 shows an example of generating and transmitting a stereoscopic image stream according to the prior art. The first and second image sequence sources represented by cameras 12 and 14 are stored in common or respective digital data storage media 16 and 18 . Alternatively, the sequence of images may be provided or input in real-time from a source of digitized movies or any other digital picture files stored on a digital data storage medium as a digital video signal suitable for reading by a microprocessor-based system. ...

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Abstract

A method and a system for encoding and decoding a digital image frame. Metadata representative of a value of at least one component of at least one pixel of the frame is generated in the course of applying an encoding operation to the frame. A standard compression operation is then applied to the encoded frame, as well as to the metadata, in preparation for either transmission or recording. At the receiving end, both the encoded frame and its associated metadata undergo standard decompression, after which the metadata is used in the course of applying a decoding operation to the encoded frame for reconstructing the original frame.

Description

technical field [0001] The present invention relates to the field of digital image transmission, and more particularly, to a method and system for encoding and decoding frames of a digital image stream. Background technique [0002] When a digital image stream is sent, some form of compression (also referred to as encoding) is usually applied to the image stream in order to reduce the amount of data storage and bandwidth requirements. For example, it is known to use quincunx or tessellation pixel decimation schemes in video compression. Obviously, such compression results in necessary decompression (or decoding) operations at the receiving end to extract the original image stream. [0003] In commonly assigned US Patent Application 2003 / 0223499, stereoscopic image pairs for stereoscopic video are compressed by removing pixels in a checkerboard pattern and then horizontally collapsing the checkerboard pattern of pixels. The two horizontally collapsed images are placed side ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T9/00H04N7/26
CPCH04N19/00303H04N19/00066H04N19/00769H04N19/00757H04N19/00127H04N19/00545H04N19/597H04N19/46H04N19/117H04N19/132H04N19/182H04N19/59
Inventor N·鲁蒂埃E·福尔丁
Owner SENSIO TECHNOLOGIES