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Full view video cylindrical surface image storage method and system

A technology for image storage and panoramic video, applied in image data processing, 2D image generation, instruments, etc., can solve the problem of low bandwidth utilization, achieve the effect of improving bandwidth utilization and saving FPGA internal resources

Inactive Publication Date: 2013-05-08
GUANGDONG VTRON TECH CO LTD
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Problems solved by technology

[0004] Based on this, the present invention provides a panoramic video cylindrical image storage method and system, which can solve the problem of low bandwidth utilization on the premise of ensuring correct data storage

Method used

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  • Full view video cylindrical surface image storage method and system
  • Full view video cylindrical surface image storage method and system
  • Full view video cylindrical surface image storage method and system

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Embodiment Construction

[0024] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] see figure 1 Shown, a kind of panoramic video cylinder image storage method comprises the following steps:

[0026] Step S101, receive frame pixel data row by row, and use FIFO (First Input First Output, first-in-first-out queue) buffer, and then enter step S102.

[0027] Step S102, judging whether the FIFO is full of one line of pixel data; if so, proceed to step S103, otherwise return to step S101 and continue to wait for receiving.

[0028] Step S103, if yes (that is, a row of pixel data is full), read out a row of pixel data continuously from the FIFO and perform cylinder transformation. In the cylinder transformation, each pixel is calculated to obtain a new coordinate, and the pixel value of each pixel is calculated. address (assuming that the row width of an image is R, the column height is H, and the ...

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Abstract

The invention provides a full view video cylindrical surface image storage method and a system. The method includes that pixel data is received by row and first in,first out (FIFO) is used for caching. Whether an FIFO is full of the caching pixel data or not is judged. If it is full, a row of pixel data is continuously read out from the FIFO and the cylindrical surface transformation is carried out. New coordinates are obtained by calculating each pixel and the pixel addresses of each pixel are calculated. Data after the transformation of the cylindrical surface is divided into a plurality of data sections, wherein, among the divided data sections, the pixel address in every data section is consecutive and the next data sections belong to different rows. BURST is formed by the pixel numbers in the data section, the BURST proruption length in the internal memory, the storage unit digit of the internal memory and the pixel address of the first pixel in the data sections. The composed BURST data is stored into the internal memory. The full view video cylindrical surface image storage method and the system achieve the transformation of the cylindrical surface of the video image as well as improve the bandwidth availability ratio.

Description

technical field [0001] The invention relates to the technical field of image splicing, in particular to a storage method for a panoramic video cylindrical image and a storage system for a panoramic video cylindrical image. Background technique [0002] Image stitching technology is widely used in space detection, seabed survey, medicine, meteorology, video indexing and retrieval, 3D reconstruction of objects, super-resolution processing of digital cameras and other fields. Video stitching is an important application of image stitching, which can generate videos with larger viewing angles and higher resolutions through image stitching. It is mainly used in exhibitions, visual entertainment, monitoring and advertising. Due to the frame rate issues involved in video processing, FPGA (Field-Programmable Gate Array, Field Programmable Logic Array) or ASIC (Application Specific Integrated Circuit, Application Specific Integrated Circuit) is the best choice for high-resolution vide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/00
Inventor 张源源赵群英
Owner GUANGDONG VTRON TECH CO LTD
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