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Three-dimensional element image array coding method based on five-dimensional quadratic kernel modeling

An encoding method and image array technology, which are applied in the field of computer image processing, can solve the problems of high noise and unsuitable encoding effect, and achieve the effects of good sensory effect, less bit consumption and less noise.

Pending Publication Date: 2021-11-19
JILIN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to propose a method for encoding a stereo element image array based on a five-dimensional quadratic mixture model, aiming at the encoding effect of light field image encoding at a low bit rate when the existing method has too much noise and is not suitable for human eyes.

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  • Three-dimensional element image array coding method based on five-dimensional quadratic kernel modeling
  • Three-dimensional element image array coding method based on five-dimensional quadratic kernel modeling
  • Three-dimensional element image array coding method based on five-dimensional quadratic kernel modeling

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Embodiment Construction

[0074] The present invention establishes a stereo element image array encoding method based on five-dimensional quadratic kernel modeling, such as figure 2 shown. The core content of the present invention is that: a brand-new model theory is proposed, the algorithm uses the traditional Gaussian model; and a reconstruction framework established by using the correlation between stereo element image elements is proposed. Compared with the traditional algorithm, the encoding effect of the system is more suitable for human eyes at low bit rates, and has better structural similarity.

[0075] In order to make the object of the present invention, technical scheme and advantage clearer, do further detailed description below in conjunction with accompanying drawing and example:

[0076] 1.1 Extraction of Stereo Element Image Array Information

[0077] In a voxel image array with row and column distribution of 72×96, the resolution of each voxel is 75×75. Such as figure 2 with i...

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Abstract

The invention discloses a three-dimensional element image array coding method based on five-dimensional quadratic kernel modeling, and belongs to the technical field of computer image processing. The method comprises the following steps: deducing and establishing a theoretical system of a five-dimensional quadratic kernel model; executing a five-dimensional quadratic kernel hybrid expert algorithm initialized by five-dimensional Gaussian regression; executing a five-dimensional adaptive model selection algorithm; and executing the coding framework. The invention provides a coding method suitable for human eyes based on the theory of a five-dimensional quadratic kernel model and the characteristics of a three-dimensional element image. Model theory extension is carried out in application, and compared with a traditional HEVC and JPEG2000 coding algorithm based on transformation, the method has a good coding effect at a low bit rate compared with the two traditional coding methods.

Description

technical field [0001] The invention belongs to the technical field of computer image processing, and in particular relates to a stereo element image array encoding method based on five-dimensional quadratic kernel modeling. Background technique [0002] As a next-generation display technology, light field imaging technology needs to transmit a much larger amount of data than traditional images, so the research on light field image coding technology is very important. Since the light field image is collected through a lens array, it is expressed as a volume element image array during transmission. Reasonable use of the correlation of the stereo element image array for image coding is the key point to break through the coding problem. [0003] Existing methods to solve encoding problems are mostly transformation-based methods, such as HEVC, JPEG2000 and so on. It is a very common technical means to arrange the stereo elements into a pseudo video sequence to perform HEVC vid...

Claims

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Application Information

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IPC IPC(8): G06T9/00
CPCG06T9/001Y02T10/40
Inventor 赵岩刘泊宁王世刚王学军
Owner JILIN UNIV
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