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An edge-held image smoothing method and an image processing chip

An image smoothing and image processing technology, applied in the field of image processing, can solve problems such as large amount of calculation

Inactive Publication Date: 2019-04-26
SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the effect of maintaining smoothness based on the global edge is better, but the amount of calculation involved is very large, and there are many restrictions on the application of solving large-scale problems.

Method used

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  • An edge-held image smoothing method and an image processing chip
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  • An edge-held image smoothing method and an image processing chip

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Embodiment Construction

[0095] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is said to be "fixed" to another element, it may be directly on the other element, or there may be one or more intervening elements therebetween. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", and "bottom" used in this specification is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the The invention and the simplified description do not indicate or imply that the device or element referred to must have a specific orientation...

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Abstract

The embodiment of the invention relates to an edge-maintained image smoothing method and an image processing chip thereof. The image processing chip comprises a memory used for storing at least one part of image information of an original image; The smooth noise reduction circuit is used for obtaining input image information through a sampling window and executing image smoothing processing on theinput image information, and the sampling window is used for obtaining image information of a one-dimensional area; And the control circuit is used for controlling the movement of the sampling windowso as to iteratively execute image smoothing processing on the original image, and outputting a noise reduction image when a preset number of iterations is reached. According to the image processingchip, the problem that the edge of an image keeps smooth is solved in a mode of solving a one-dimensional linear system in an iteration mode, so that the calculation complexity of a global optimization objective function with data constraint and prior smoothing can be effectively reduced, and meanwhile, an edge keeping image smoothing effect better than that of a local optimization mode can be obtained.

Description

【Technical field】 [0001] The invention relates to the technical field of image processing, in particular to an edge-preserving image smoothing method and an image processing chip. 【Background technique】 [0002] With the continuous development of image processing technology, it is increasingly used as a means of information mining, and is applied to different fields such as intelligent transportation and urban security. Since the quality of the image acquired directly from the image acquisition device is affected by various objective factors, it is difficult to directly meet the application requirements of the image processing algorithm, and it is often necessary to use some image preprocessing methods to improve the image quality. [0003] Edge preserving smoothing EPS (edge ​​preserving smoothing EPS) is a commonly used image preprocessing technology, its goal is to remove image noise, improve image clarity and effectively maintain the edge of the image. [0004] Existing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
CPCG06T5/70
Inventor 谢青青
Owner SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD