Stemmer Imaging 為系統開發人員提供專業的12500萬畫素的單色顯微攝影用相機和4500萬畫素的彩色顯微攝影用相機。 雖然使用標準鏡頭，但它們卻可提供超高分辨率。通過使用像素移位技術，Stemmer Imaging 發布的相機最小可觀測只有55 × 55 × 84.5mm，分辨率卻高達12500萬畫素和4500萬畫素。這種超高分辨率，是許多科學應用的理想選擇。
由於Stemmer Imaging 的相機使用的是5 萬畫素的影像傳感器，所以可以在超高分辨率模式下與5 萬畫素的鏡頭一起使用，而且並不需要超高分辨率光學鏡頭。壓電元件可使影像快速的水平和垂直的交替從而使傳感器轉向，這樣相機就具有超高分辨率，並且拍攝的影像序列可以插入到主機PC 上的高分辨率影像系統上。
Stemmer Imaging 的彩色相機功能更加強大，通過使用一個標準的影像傳感器，用戶可迅速找到所需觀察的區域，然後再切換到超高分辨率模式。此外，彩色相機可以在5 萬畫素的分辨率傳感器的下運行，提供每個影像全彩色RGB 輸出。在這種模式下，相機的傳感器性能相當於單傳感器的3 - CCD 器件。
單色相機在12500萬畫素的全分辨率下，幀速率可達到0.516 圖像/S ，在4500萬畫素和500萬畫素的分辨率下，幀幅速率可達到1.43 影像/S 。在4500萬畫素的分辨率下，RGB 模式下的彩色相機幀幅速率也可達到1.43 影像/S 。
8 位或10 位影像數據通過相機連接傳送到主機PC 。為方便集成並生成高分辨率圖像，Stemmer Imaging 提供了Teledyne TDALSA 的X64 - CL 和Xcelera - CL PX4 的應用示例和影像擷取卡的源代碼，但也可以就其他影像擷取卡的使用提供諮詢。
125 Million Pixel Monochrome and 45 Million Pixel Colour Cameras Now Available From Stemmer Imaging
Stemmer Imaging can now provide system developers with specialized monochrome and colour cameras which can provide ultrahigh resolution yet use standard lens technology. Measuring just 55 x 55 x 84.5 mm, the CVC Ultra 125MP CL monochrome and CVC Ultra 45MP CL colour cameras offer a resolution of up to 125- and 45-million pixels, respectively, using pixel shift technology. This ultrahigh resolution is perfect for many scientific applications.
Since the camera is based on a 5 Mpixel image sensor, it can be used in conjunction with a 5 Mpixel lens even in ultrahigh resolution mode. There is no need for ultrahigh resolution lens optics. The ultrahigh imaging resolution is achieved by using a piezo element to shift the sensor by fractions of a pixel both horizontally and vertically in quick succession. This allows a sequence of images to be captured which are then interpolated into the high resolution image on a host PC.
The colour version is particularly versatile. By using the sensor as a standard imager, the field of interest can be quickly located before switching to ultra-high resolution mode. In addition, by setting the pixel shift to be one pixel rather than a fraction of a pixel, the camera can operate at the sensor’s 5 Mpixel resolution to provide full RGB output for each pixel without colour fringing. In this mode the camera gives performance equivalent to a 3-CCD device from a single sensor.
The monochrome version offers a frame rate of 0.516 images per second at the full resolution of 125 million pixels. Faster rates of 1.43 images per second can be achieved at 45 MPixel resolution and 15 images/s at 5 Mpixel resolution. The colour version also has a frame rate of 1.43 fps at 45 MPixel resolution and 3.12 images/s in the true RGB mode.
The image data is transferred to the PC via CameraLink Base at 8 or 10 bits. To facilitate easy integration and to generate high-resolution images Stemmer maging provides sample applications with source code for Teledyne DALSA X64-CL and Xcelera-CL PX4 image capture cards, but can advise on the use of other frame grabbers.
原廠網址：http://www.microscopy-analysis.com/news/125-and-45-million-pixel-colour-cameras-stemmer-imaging?c=light
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