Transmission method for high presence image based on GPGPU

Abstract

The invention discloses a transmission method used for highly realistic image on the basis of GPGPU, comprising the steps as follows: (A) a pixel coder converts the original HDR image data into a log-domain form; the value in the log-domain domain is converted into n-bit integer without symbols, thus gaining image data which is memorized in the form of integer without symbols; (B) the image data which is memorized in the form of integer without symbols is sent to the image coder so as to carry out image compressing and decoding, thus gaining compressed HDR image data; (C) during the decoding process, the compressed HDR image data is decoded firstly by an image decoder; subsequently, the result is sent to a pixel decoder to carry out the decoding operation and be converted into the original HDR image data. By the GPU with highly parallel characteristic and strong calculation capability, most users can quickly and conveniently view the highly realistic image display by the network under the Internet environment with limited bandwidth and complex conditions.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a high dynamic image transmission method realized based on GPGPU. Background technique [0002] The use of high dynamic range images (HDR) with highly photorealistic lighting has revolutionized the field of computer graphics and has become an integral part of the field of virtual walkthroughs. Previously, we were only able to use low dynamic range images, an image format that typically only stored 8 bits per color channel, or 24 bits per pixel. These images can only represent some very limited information in real-world scenes, so in order to reproduce the rich brightness levels in real life and produce realistic effects, high dynamic range images are generated through a series of photos with different exposures, each Each color channel has 16 bits, so each pixel is increased by a factor of 48. [0003] But data redundancy wastes many bytes, making the size of the original HDR pi...

AI Technical Summary

Problems solved by technology

The traditional JPEG can't do this, it can onl

Images