CAJ | 학술논문

为了在视频图像中进行字幕信息的实时提取,提出了一套简捷而有效的方法.首先进行文字事件检测,然后进行边缘检测、阈值计算和边缘尺寸限制,最后依据文字像素密度范围进一步滤去非文字区域的视频字幕,提出的叠加水平和垂直方向边缘的方法,加强了检测到的文字的边缘;对边缘进行尺寸限制过滤掉了不符合文字尺寸的边缘.应用投影法最终确定视频字幕所在区域.最后,利用OCR识别技术对提取出来的文字区域进行识别,完成视频中文字的提取.以上方法的结合保证了提出算法的正确率和鲁棒性.
위료재시빈도상중진행자막신식적실시제취,제출료일투간첩이유효적방법.수선진행문자사건검측,연후진행변연검측、역치계산화변연척촌한제,최후의거문자상소밀도범위진일보려거비문자구역적시빈자막,제출적첩가수평화수직방향변연적방법,가강료검측도적문자적변연;대변연진행척촌한제과려도료불부합문자척촌적변연.응용투영법최종학정시빈자막소재구역.최후,이용OCR식별기술대제취출래적문자구역진행식별,완성시빈중문자적제취.이상방법적결합보증료제출산법적정학솔화로봉성.
A simple and effective method is presented for real-time text segmentation and recognition in videos.Firstly,an algorithm is provided which detects text event and gets edges, then makes a size restrict to the edges and eventually wipes off nontext regions according to the textual energy.The overlaying of detected horizontal edges and vertical edges enhances the text edges, the size restrict of edges helps to wipe off the non-text edges.Later, image projection is applied to get text regions.Eventu-ally, the text regions are processed by OCR technology. The combination of these methods guarantees the performance of this algorithm.