Digital zoom device and method

Abstract

The invention relates to a digital zoom device and method. The digital zoom device comprises a DSP (Digital Signal Processor) module and an FPGA (Field Programmable Gate Array) module, wherein the DSP module is used for acquiring an original image and outputting image information of the original image, and the FPGA module is connected with the DSP module and is used for receiving the image information output by the DSP module, carrying out buffering and shooting processing on the original image according to configuration parameters, and outputting a processed image; and the DSP module is used for receiving the processed image output by the FPGA module, carrying out interpolation and amplification processing on the processed image, and outputting an amplified image. The digital zoom method comprises the following steps that: (S1) the DSP module outputs the image information of the acquired original image; (S2) the FPGA module carries out buffering and shooting processing on the original image according to the configuration parameters, and outputs the processed image; and (3) the DSP module carries out interpolation and amplification processing on the processed image, and outputs the amplified image. The device and the method have the advantages that both the high operating speed of an FPGA and the strong operational capability of a DSP are sufficiently utilized, so that image data can be processed in time; and the interpolation effect is good, the response is fast, and the work efficiency is high.

Description

technical field [0001] The invention relates to the technical field of zooming, in particular to a digital zooming device and method. Background technique [0002] Digital zoom (Digital Zoom) is to increase the area of ​​each pixel in the picture through the processor in the digital camera, so as to achieve the purpose of magnification. This method is like using image processing software to enlarge the area of ​​the picture, but the program is carried out in the digital camera, and a part of the pixels on the original CCD (Charge Coupled Device, Charge Coupled Device) image sensor is enlarged using the "interpolation" processing method. The pixels on the CCD image sensor are enlarged to the whole screen by interpolation algorithm. When the technology of digital camera and lens was not well developed earlier, some manufacturers had to cancel the optical zoom and use the digital zoom function in order to launch products with small size and thin body. Can effectively control ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a digital zoom device and method for the defects of poor high-speed computing capability, low work efficiency, and slow response speed of the single-chip microcomputer used in the prior art digital zoom

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