A method and system for realizing compression and storage of panoramic images
A panoramic image, compressed storage technology, applied in the direction of image communication, digital video signal modification, electrical components, etc., can solve the problems of sacrificing image details, large storage space, and large loss of image quality, so as to preserve image details and simple processing method , the effect of reducing the amount of storage
Active Publication Date: 2019-05-28
SHANGHAI JEITU SOFTWARE
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[0004] The traditional storage method of panoramic images is a 2:1 spherical panorama, which requires a large storage space; the traditional compression scheme of panoramic images simply down-samples the image horizontally to obtain a compressed image with a size of 1:1, sacrificing image details. Large loss of image quality
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[0046] Figure 1A It shows the flow of the first embodiment of the method for realizing compression and storage of panoramic images of the present invention. See Figure 1A , the steps of this embodiment are described in detail as follows. The purpose of this embodiment is to compress and store the panoramic image based on the latitude image.
[0047] Step S11: Create a latitude image with a certain aspect ratio.
[0048] The latitude image retains the compressed latitude coil image. From the equator to the poles, the effective image width of the latitude image decreases in turn, as follows image 3 The image profile shown is a rhombus image, and the effective storage area is half of the 2:1 spherical panoramic image.
[0049] In this embodiment, for example, a latitude image with an aspect ratio of 2:1 is created.
[0050] Step S12: Calculate the width of each line of the sampled latitude image row by row, and bilinearly interpolate the panoramic image into a latitude imag...
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The invention discloses a method and system for realizing panoramic image compression storage. The defect of obtaining 1:1 dimension compression pattern through simple horizontal sampling is overcome; The detail contents of an interestingness region are well remained; the panoramic image storage quantity is reduced. The method and the system have the technical scheme that a latitude image is used for remaining the image content; the image flanging is used for performing image compression; the detail contents of the interesting region are well remained; the storage quantity of the panoramic image is reduced. The details of the images are remained; meanwhile, the image storage quantity is reduced; in addition, the algorithm is convenient for transplanting; the real-time acceleration can be performed; the method and the system can be used for panoramic video data storage and panoramic image data storage; in addition, the restoration on the compression image during the playing can be realized.
Description
technical field [0001] The invention relates to image compression technology, in particular to a method and system for compressing and restoring panoramic images. Background technique [0002] With the continuous popularization of panoramic and panoramic video technologies, the demand for high-quality panoramic images is increasing. [0003] Traditional panoramic images are stored in a size of 2:1, and the storage capacity is relatively large. The storage and processing of panoramic images, especially panoramic videos, puts forward new requirements for compressed storage of images. [0004] The traditional storage method of panoramic images is a 2:1 spherical panorama, which requires a large storage space; the traditional compression scheme of panoramic images simply down-samples the image horizontally to obtain a compressed image with a size of 1:1, sacrificing image details. Image quality loss is large. Contents of the invention [0005] A brief summary of one or more ...
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IPC IPC(8): H04N19/167H04N19/426
CPCH04N19/167H04N19/426
Inventor 张小虎王帅
Owner SHANGHAI JEITU SOFTWARE