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Image de-interleaving method and device for super-division reconstruction

A technology for image reconstruction and de-interleaving, applied in the field of image processing, can solve problems such as difficult to determine the buffer size and unacceptable hardware design, and achieve the effect of reducing data reading bandwidth requirements and calculation load

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

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Problems solved by technology

[0006] In the prior art, for this kind of interleaving problem, a common practice in hardware design is to use a buffer to cache the interleaved data, but since the input data is compressed macroblocks, the interleaving is affected by the size of the macroblock and the scaling factor , making it difficult to determine the size of the buffer. In the worst case, all pixel lines need to be buffered. This cost is unacceptable for hardware design

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  • Image de-interleaving method and device for super-division reconstruction
  • Image de-interleaving method and device for super-division reconstruction
  • Image de-interleaving method and device for super-division reconstruction

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Embodiment 1

[0065] see figure 1 , figure 1 It is a schematic flowchart of an image deinterleaving method for super-resolution reconstruction disclosed by an embodiment of the present invention. in, figure 1 The described image deinterleaving method for super-resolution reconstruction is applied to an image processing system / image processing device / image processing server (wherein the image processing server includes a local image processing server or a cloud image processing server). Such as figure 1 As shown, the image deinterleaving method for super-resolution reconstruction may include the following operations:

[0066] 101. Determine the reconstruction base image and the super-resolution reconstruction magnification factor.

[0067] In the embodiment of the present invention, the reconstruction base image may be a low-resolution image to be subjected to super-resolution reconstruction, which may be an image obtained by decompressing the target compressed image. Optionally, the su...

Embodiment 2

[0099] see figure 2 , figure 2 It is a schematic flowchart of another image deinterleaving method for super-resolution reconstruction disclosed in the embodiment of the present invention. in, figure 2 The described image deinterleaving method for super-resolution reconstruction is applied to an image processing system / image processing device / image processing server (wherein the image processing server includes a local image processing server or a cloud image processing server). Such as figure 2 As shown, the image deinterleaving method for super-resolution reconstruction may include the following operations:

[0100] 201. Determine the reconstruction base image and the super-resolution reconstruction magnification factor.

[0101] 202. Determine pixel interleaving information in the target reconstructed image.

[0102] 203. Determine reconstruction displacement information corresponding to the reconstruction base image according to the pixel interleaving information a...

Embodiment 3

[0113] see image 3 , image 3 It is a schematic structural diagram of an image deinterleaving device for super-resolution reconstruction disclosed by an embodiment of the present invention. in, image 3 The described image deinterleaving device for super-resolution reconstruction is applied to an image processing system / image processing device / image processing server (wherein the image processing server includes a local image processing server or a cloud image processing server). Such as image 3 As shown, the image deinterleaving device for super-resolution reconstruction may include:

[0114] The coefficient determination module 301 is configured to determine the reconstruction base image and the super-resolution reconstruction magnification coefficient.

[0115] In the embodiment of the present invention, the reconstruction base image may be a low-resolution image to be subjected to super-resolution reconstruction, which may be an image obtained by decompressing the ta...

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Abstract

The invention discloses an image de-interleaving method and device for super-resolution reconstruction. The method comprises the following steps: determining a reconstructed basic image and a super-resolution reconstruction amplification coefficient; determining pixel interleaving information in the target reconstructed image; the target reconstruction image is a corresponding image after the reconstruction basic image is reconstructed; according to the pixel interleaving information and the super-resolution reconstruction amplification coefficient, determining reconstruction displacement information corresponding to the reconstruction basic image; wherein the reconstruction displacement information is used for indicating the downward offset distance of the mapping coordinates of the pixel-interlaced image macro block of the target reconstruction image when the reconstruction basic image is subjected to super-division reconstruction. Therefore, the position of the mapping coordinate can be adjusted during image reconstruction according to the reconstruction pixel interleaving condition in the image, so that the data reading bandwidth requirement and the operand during final super-division reconstruction can be effectively reduced, and online image decompression and super-division reconstruction can be realized.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image deinterleaving method and device for super-resolution reconstruction. Background technique [0002] In order to achieve higher quality video transmission, a common method in the industry is to combine image super-resolution reconstruction technology to reduce the pressure on bandwidth and memory. For example, the common "fake 4K camera" on the market obtains low-resolution images from the camera. Or first down-sample the high-resolution images captured by the camera to save resources, and then perform image super-resolution reconstruction to obtain high-resolution 4K images only before encoding, and finally encode and record the 4K images. At the same time, combined with image compression technology, the low-resolution images in the process are compressed to achieve the purpose of maximizing bandwidth and memory savings. [0003] However, for scenes suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40H04N19/88
CPCG06T3/4053G06T3/4046H04N19/88
Inventor 潘文培宋松言
Owner ALLWINNER TECH CO LTD