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Segmented picture coding method and system, and corresponding decoding method and system

A coding method and image technology, applied in image coding, image communication, image data processing, etc., can solve problems such as lack of flexibility

Inactive Publication Date: 2003-07-02
PENDRAGON WIRELESS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this common method of encoding segmented images lacks flexibility both in the type of segmentation that has to be done or in the type of encoding used for the different regions of the original image

Method used

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  • Segmented picture coding method and system, and corresponding decoding method and system
  • Segmented picture coding method and system, and corresponding decoding method and system
  • Segmented picture coding method and system, and corresponding decoding method and system

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Embodiment Construction

[0064] Referring now to Figure 1, this figure shows a system comprising three main subcomponents. The first divided preprocessing subcomponent 1 is used to receive the input sequence S(t-j) of the divided frame or image, ..., S(t-1), S(t), S(t+1) , ... (which themselves correspond to the original texture images P(t-j), ..., P(t-1), P(t), P(t+1), ... . . . ), including time progression determining means 11 and partition topology determining means 12. The second decision subcomponent 2 is configured to receive a group of divisions generated by the first subcomponent 1 and determine a coding strategy. The third coding sub-component 3 is used to receive the selected partition and the decision about the coding strategy related to this selected partition, including decision coding means 31, motion coding means 32, partition (or contour) coding means 33 . A texture encoding device 34 and a multiplexer 35 .

[0065] see now figure 2 and Fig. 1 illustrate the general encoding metho...

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Abstract

The invention relates to a method and system for coding segmented pictures, and to corresponding decoding method and system. In the coding system, a first sub-system defines the time evolution of said segmented pictures, or partitions, and a second one encodes both contours and textures of the regions of the successive partitions. The time evolution definition leads to a partition tree (PT) from which regions are extracted during an analysis step (AS) in order to form a decision tree (DT). A decision operation allows to select during a choice step (CS) distinct regions RS from various levels of said partition tree, in order to construct an optimal final partition (BFP) and, simultaneously, to choose the coding technique (BCT) that is the best one for each region of said optimal partition. Reciprocally the decoding method and system comprise means for defining the coding strategy chosen for each of said regions and decoding correspondingly the coded information.

Description

technical field [0001] The present invention relates to a method of encoding segmented images, i.e. divisions corresponding to a series of original images and defining contours and closed areas of said images, with corresponding reference signs and these Contours are associated with closed areas, said method comprising a first determination step of determining the temporal motion progression of a division between two successive images and a second encoding step of encoding the motion, contour and texture of said successive divisions. The invention also relates to a signal encoded with such an encoding system, a storage medium storing such an encoding system, a method of decoding said encoded signal, and a corresponding decoding system. technical background [0002] For example in European patent application EP0389044 a method and a device are described for decomposing a signal corresponding to an original image into components using features distinguished in the original ima...

Claims

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Application Information

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IPC IPC(8): H04N19/169G06T9/00G06T9/20G06T9/40H04N7/26H04N7/30H04N7/32H04N7/36H04N19/55
CPCH04N7/26404H04N19/00315H04N7/26148H04N19/00818H04N7/26154G06T9/20G06T9/40H04N19/00351H04N19/00624H04N7/26329H04N19/00745H04N7/365H04N19/00848H04N7/26308H04N19/00563H04N19/00587H04N19/00175H04N7/3011H04N7/26797H04N19/00387H04N7/361H04N19/147H04N19/51H04N19/63H04N19/186H04N19/19H04N19/48H04N19/20H04N19/537H04N19/543H04N19/649
Inventor I·科塞特L·保查德S·詹宁P·塞伦比亚F·马克斯M·帕特斯R·莫洛斯F·梅尔B·马科特瓜
Owner PENDRAGON WIRELESS LLC
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