相機鏡頭檢測

Abstract

隨著時代的進步，現在不僅能使用相機拍照，手機、網路攝影機更是普及，各式各樣此種類的產品，如何辨認好壞?我們可以利用簡單的方法來自我檢測相機鏡頭。測試的主要設備為電腦、機器視覺標定模板，使用方法:在此先量測固定距離來拍攝機器視覺標定模板，再將照片上傳利用電腦附屬應用程式-小畫家來測量、自我檢測CCD攝影機或數位相機的鏡頭，不需花長時間就能小小的做個簡單的測試。大部分的相機或手機都繪標示一些基本格示，像素、廣角、感光…等，如果沒有，可以透過以上實驗簡單檢測相機鏡頭的品質。MTF用來比較鏡頭的成像品質，暗角用來測光圈大小，畸變則測廣角。 不過測量出來的答案僅參考用，畢竟外在因素太多，像是燈光分布不均、焦距不一樣，都有可能會造成誤差。

Abstract With the development of progress, we not only can use the camera, but also use mobile phones and webcams to take pictures.A variety of this type of product, how to identify good or bad? We can use a simple method to detect the camera lens by ourselves. Equipment: computer, machine vision calibration template. The method: First ,measured in a fixed distance and shot machine vision calibration template. Second, upload the photo Computer Accessories - Paint to detect the lens of the CCD camera or digital camera. Without having to spend a long time will be able to take a simple test. Most of the cameras or mobile phones are mark some of the basic cell shown in pixels, wide-angle, photosensitive ... If not, the quality of the camera lens through the simple detection of the above experiment. MTF is used to compare the imaging quality of the lens, and hidden corners used to measure the aperture size, distortion is measured wide-angle.However, measuring out the answer reference only, after all, too many external factors, such as the lights are unevenly distributed, and the focal length is not the same, are likely to cause the error.