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Image cutting system and method

A technology of cutting system and cutting method, which is applied in the direction of image communication, television, electrical components, etc., can solve the problem of high computational complexity in computing time, and achieve the effect of reducing the number of recursive operations

Inactive Publication Date: 2013-03-13
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this recursive process, since each CU of different sizes has been tested to determine the best cutting method, the computational time and computational complexity it consumes are quite high and need to be improved

Method used

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Embodiment Construction

[0017] Such as figure 1 Shown is a schematic view of the operating environment of the image cutting system of the present invention. The image cutting system 24 runs in the electronic device 2 . The electronic device 2 also includes a display device 20 , an input device 22 , a memory 23 and a processor 25 connected via a data bus. The electronic device 2 may be a computer, a mobile phone, a PDA (Personal Digital Assistant, personal digital assistant) and the like.

[0018] The memory 23 is used for storing program codes and images of the image cutting system 24 . The display device 20 is used to display the image and other data, and the display device 20 may be a liquid crystal display screen of a computer, a touch screen of a mobile phone, or the like. The input device 22 is used for inputting various data set by the user, for example, a keyboard, a mouse, and the like.

[0019] The image cutting system 24 is used for pre-judging the cutting mode of each block in the LCU ...

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Abstract

Provided is an image cutting system and method. The image cutting system is used for cutting a largest coding unit (LCU) into a plurality of N*N blocks; calculating and counting the angle of every N*N block in every current coding unit CU of the LCU; determining the cutting mode of each current CU block in the LCU according to the calculating results; judging whether the current CU blocks need to be cut continuously according to the cutting mode of each CU block; cutting the current CU blocks into four auxiliary CU blocks same in size if the current CU blocks need to be cut continuously; and stopping cutting the current CU blocks if the current CU blocks do not need to be cut continuously. By means of the image cutting system and method, calculation amount can be reduced, and quadtree cutting in the LCU can be accelerated.

Description

technical field [0001] The invention relates to an image compression system and method, in particular to an image cutting system and method in image compression. Background technique [0002] In April 2010, the Joint Collaborative Team on Video Coding (JCT-VC) began to study a new generation of compression technology, High Efficiency Video Coding (H.265 / HEVC), which aims to become the next generation Compression standard. Compared with the current compression technology H.264, its goal is to reduce the bit rate (Bit rate) by 50%, and its picture quality and computational complexity are also increased by 3 times. At present, the general research directions are: improving compression efficiency, improving coding correctness and error recovery ability, reducing computing time and computing complexity. [0003] In the encoding process, an image or picture will be cut into multiple fixed-size Largest Coding Units (LCU), and each LCU will be recursively cut into codes of differe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/32H04N19/115H04N19/176
Inventor 李忠一叶建发汤明桦
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD