CAJ | 학술논문

目前的CCD图像采集系统中通常采用算法提升图像采集帧率，然而该技术所增加的不真实图像帧数据会导致图像质量下降。针对这一情况，提出了一种基于CPLD(复杂可编程逻辑器件)硬件提升帧率的图像采集方案，并开发了一套相应的硬件系统。该方案通过分析CCD(电荷耦合器件)器件ICX285AL的时序特征，采用压缩帧内消隐时间和提高像素输出速率的方法提升原始数据帧的产生速率实现帧率提升，新增加的帧是CCD图像采集器件实际采集得到的真实数据，可以保证图像的完整性和真实性。最后的测试结果表明，设计的硬件系统可行性高、性能稳定，可操作性强，可以推广到其他的CCD采集系统上。
목전적CCD도상채집계통중통상채용산법제승도상채집정솔，연이해기술소증가적불진실도상정수거회도치도상질량하강。침대저일정황，제출료일충기우CPLD(복잡가편정라집기건)경건제승정솔적도상채집방안，병개발료일투상응적경건계통。해방안통과분석CCD(전하우합기건)기건ICX285AL적시서특정，채용압축정내소은시간화제고상소수출속솔적방법제승원시수거정적산생속솔실현정솔제승，신증가적정시CCD도상채집기건실제채집득도적진실수거，가이보증도상적완정성화진실성。최후적측시결과표명，설계적경건계통가행성고、성능은정，가조작성강，가이추엄도기타적CCD채집계통상。
The CCD image acquisition system usually adopts the algorithm to enhance image acquisition frame rate,however, the unreal image frame data increased by the technology can cause a decline in image quality.Therefore,the image acquisition sys-tem based on CPLD ( Complex Programmable Logic Device) hardware improving frame rate and corresponding hardware system were developed.By analyzing the timing sequence chart of ICX285AL CCD sensor produced by Sony Corporation,the frame rate was improved by compressing the redundancy time of a frame to the minimum and increasing the speed of producing pixel data based on the improvement of the speed of image collection.The frame is real image data collected by CCD image collector,guaranteeing the reality and integrity of the data.The experiments demonstrate the feasibility,stability and operability of this system,and can be used in other CCD sensor image acquisition systems.