Reconfigurable Parallel Image Detail Enhancement Method and Device

A detail and image technology, applied in the direction of image communication, color TV parts, TV system parts, etc., can solve the problems of insufficient processing capacity and high cost pressure, and achieve reuse, improve use efficiency, and enhance details Effect

Active Publication Date: 2019-12-06
INST OF AUTOMATION CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] Traditional video image detail enhancement solutions are mainly designed for high-definition and following standards. When faced with 4K image processing requirements, it is very likely that the processing capacity is insufficient; at the same time, 4K ultra-high-definition images can bring more refined picture effects , so when the existing detail enhancement algorithm is applied to 4K resolution images, negative effects such as overshoot may be more easily noticed by the viewer
[0004] In addition, since the traditional solution usually uses an ASIC chip with a solidified algorithm as the specific implementation solution, when faced with the need for algorithm upgrades, the cost pressure is huge

Method used

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  • Reconfigurable Parallel Image Detail Enhancement Method and Device
  • Reconfigurable Parallel Image Detail Enhancement Method and Device
  • Reconfigurable Parallel Image Detail Enhancement Method and Device

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Embodiment Construction

[0062] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0063] A reconfigurable parallel image detail enhancement device of the present invention, such as figure 1 As shown, including local memory, memory access control unit, general buffer, parallel arithmetic logic unit (ALU), state machine, parallel multiply accumulator (MAC);

[0064] The local memory is used to save the input and output image data and the parameters required by the parallel video image contrast enhancement algorithm, and the memory supports parallel access;

[0065] The memory access control unit is used for data exchange between the local memory and the general buffer; in this embodiment, three memory access control units wi...

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Abstract

The invention relates to a reconfigurable parallel image detail enhancing method, including parameter preloading, data buffering, horizontal and vertical filtering, coring filtering, overshoot suppression, amplitude suppression and cached data updating. The invention also relates to a reconfigurable parallel image detail enhancing device, including a local memory, a memory access control unit, a general buffer, a parallel arithmetic logic unit ALU, a state machine, and a parallel multiply-accumulator device MAC. With the method and the device provided by the invention, the image detail signal is enhanced, the texture area is enabled to be more intelligible, the data usage efficiency is improved, the data interaction between the operation part and the peripheral memory is reduced, the memory access bandwidth pressure is lowered, and the repeated utilization of hardware resources is achieved.

Description

technical field [0001] The invention relates to the field of video image processing, in particular to a reconfigurable parallel image detail enhancement method and device. Background technique [0002] At present, one of the mainstream development directions of video technology is ultra-high-definition (4K resolution) display technology. Compared with high-definition (1920*1080) video, the number of pixels of 4K video has been increased from 2M to 8M, so higher requirements are placed on the image quality and performance of image enhancement algorithms. [0003] Traditional video image detail enhancement solutions are mainly designed for high-definition and following standards. When faced with 4K image processing requirements, it is very likely that the processing capacity is insufficient; at the same time, 4K ultra-high-definition images can bring more detailed picture effects , so when the existing detail enhancement algorithm is applied to 4K resolution images, negative ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/213
CPCH04N5/213
Inventor 刘壮郭若杉谭吉来李瑞玲韩睿李晨
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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