Quantized transformation coefficient management device and encoder applicable to hevc standard
A technology for transforming coefficients and management devices, applied in digital video signal modification, image communication, electrical components, etc., can solve problems such as high power consumption, achieve the effects of reducing operating power consumption, improving work efficiency, and reducing hardware overhead
Active Publication Date: 2022-04-01
SHANGHAI FULLHAN MICROELECTRONICS
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[0008] The purpose of the present invention is to provide a quantized transform coefficient management device and an encoder applicable to the HEVC standard, so as to solve the problem that the quantized transform coefficient management device consumes a large amount of power consumption when accessing quantized transform coefficients
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[0038] The device for managing quantized transform coefficients proposed by the present invention and the encoder applicable to the HEVC standard will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In addition, the structures shown in the drawings are often a part of the actual structure. In particular, each drawing needs to display different emphases, and sometimes uses different scales.
[0039] The present invention provides a quantized transformation coefficient management device, referring to figure 2 and image 3 , figure 2 is a structural block diagram of a device for managing quantized...
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The present invention provides a quantized transformation coefficient management device, including: a first management module, and the first management module includes: a first storage unit and a first processing unit. Through the first storage unit and the first processing unit, the first management module can quickly access and manage part of the quantized transform coefficients output by the first management unit and the quantized transform coefficients of the first coding unit, only Using one storage unit realizes the data sharing of the quantized transform coefficients of coding units of different sizes, avoiding the situation that coding units of different sizes require independent storage units, thereby avoiding the quantized transform coefficients in multiple storage units being continuously stored In the case of being selected, moved or discarded, the compression capacity of the first storage unit is reduced, thereby reducing hardware overhead, and at the same time reducing the operating power consumption of the first storage unit, improving the quantized transform coefficient Manage device productivity.
Description
technical field [0001] The present invention relates to the technical field of digital video processing, in particular to a quantized transformation coefficient management device and an encoder applicable to the HEVC standard. Background technique [0002] In order to support high-definition video applications, the Joint Collaborative Team on Video Coding (JVT-VC) proposed High Efficiency Video Coding (HEVC) as a general video coding standard. [0003] Quadtree decomposition technology is an important coding tool of HEVC. One frame of image is divided into multiple tree coding units (coding tree unit, CTU), and one CTU can be divided into multiple Coding unit (coding unit, CU), the size of the CU generally includes: 4×4, 8×8, 16×16, 32×32 and 64×64. [0004] refer to figure 1 , figure 1 It is a schematic diagram of an encoder applicable to the HEVC standard in the prior art. The quantized transform coefficient management module receives several quantized transform coeffic...
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IPC IPC(8): H04N19/124H04N19/91H04N19/426H04N19/70
CPCH04N19/124H04N19/91H04N19/426H04N19/70
Inventor 诸悦陈晓春刘易华潘柳含肖君寿
Owner SHANGHAI FULLHAN MICROELECTRONICS