Image coding method and device, electronic equipment and storage medium

An image encoding and encoding technology, which is applied in the field of image encoding, can solve the problems of redundant information and high encoding and decoding processing complexity, and achieve the effect of improving the effect, increasing the encoding and decoding complexity, and improving the image compression rate

Pending Publication Date: 2021-11-05
BIGO TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The current image coding scheme has reached a certain level of optimization, and it is difficult to achieve further improvement in compression performance; or there are problems of high codec processing complexity and redundant information.

Method used

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  • Image coding method and device, electronic equipment and storage medium
  • Image coding method and device, electronic equipment and storage medium
  • Image coding method and device, electronic equipment and storage medium

Examples

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Embodiment 1

[0037] At present, commonly used image coding methods generally can have: 1, JPEG (Joint Photographic Experts Group) image lossy coding method, this method is a kind of compression method that is applied to photo image content, and it realizes image at the expense of partial information Compression encoding. 2. PNG (Portable Network Graphics) image lossless encoding method, this method is a compression method based on lossless encoding, which can retain all information of the image, supports transparent (Alpha) channel and gamma correction of brightness, and can obtain relatively Good color reconstruction effect. 3. WebP encoding method, which is derived from the video encoding standard VP8, supports lossless and lossy encoding, and has a compression rate improvement of more than 20% compared with method 1 and method 2. 4. The coding method based on the H.264 / H.265 video coding standard. H.264 / H.265 is an international video coding standard formulated by the MPEG organization...

Embodiment 2

[0077] Corresponding to the first method embodiment above, this embodiment also provides an image decoding method, which can be applied to electronic devices, for example, can be used in servers or terminal devices.

[0078] Please see image 3 , which is a schematic flowchart of an image decoding method provided by an embodiment of the present disclosure. Such as image 3 As shown, the method includes the following steps S3100-S3200, which will be described in detail below.

[0079] Step S3100, acquire the target encoded data to be analyzed, wherein the target encoded data is the data obtained after encoding the original image using a preset encoding standard, the preset encoding standard is based on intra-frame predictive encoding, and includes the target block Division processing and target quantization processing, the target block division processing is image block division processing based on preset rules, and the target quantization processing includes data quantizatio...

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Abstract

The invention discloses an image decoding method and device, and electronic equipment. The method comprises the steps of obtaining a to-be-coded original image; encoding the original image by using a preset encoding standard to obtain target encoding data, the preset encoding standard being based on intra-frame prediction encoding and including target block division processing and target quantization processing, the target block division processing being image block division processing based on a preset rule, the target quantization processing comprising data quantization processing based on grid coding quantization. According to the method, the complexity of image coding processing can be reduced on the premise of considering the image compression performance.

Description

technical field [0001] The present disclosure relates to the technical field of image encoding, and more specifically, relates to an image encoding method, device, electronic equipment, and computer-readable storage medium. The present disclosure also relates to an image decoding method. Background technique [0002] Image coding technology is a method of compressing image data in order to minimize the bandwidth required to transmit image data. In recent years, with the continuous development of intelligent terminal technology, the number of images transmitted on the Internet has begun to increase sharply, and the size of images is also increasing, which poses new challenges to image coding technology. [0003] The current image coding scheme has reached a certain level of optimization, and it is difficult to achieve further improvement in compression performance; or there are problems of high codec processing complexity and redundant information. Therefore, it is necessary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/172H04N19/159H04N19/124H04N19/42H04N19/44
CPCH04N19/172H04N19/159H04N19/124H04N19/42H04N19/44
Inventor 张凯明包佳晶
Owner BIGO TECH PTE LTD
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