polarimetric imaging

, thus using the contrast between the interference fringes and the gap between the light wave of the whole information recorded. The film which records the interference fringes becomes a hologram, or holographic photograph, after the process of developing and fixing etc.The second step: using the diffraction principle to reproduce the object light wave information, which is the imaging process. Hologram is like a complex grating, under the irradiation

and amplitude to change the intensity of the space, thus using the contrast between the interference fringes and the gap between the light wave of the whole information recorded. The film which records the interference fringes becomes a hologram, or holographic photograph, after the process of developing and fixing etc.The second step: using the diffraction principle to reproduce the object light wave information, which is the imaging process. Hologr

Brightfield and Dark field illuminationUnderstanding "W":The reflected light is the same angle as the light source. Brightfield: The light bounces back into the camera. Dark-Dark: The camera is not entered after the light is reflected.Ming Field Lighting: Good for forming high contrast, but reflective surfaces produce specular reflections The light source range should be twice times the field of view of the camera lens Avoid "hot spots

so long, I think they all have their own characteristics and want to make them as objective as possible, but what I am responsible for is worth considering, the key is to look at your requirements and economic capabilities. Nikang's camera features simply: Fixed focus is better than zoom, the price is relatively low, the imaging style is sharp, and high-end products are lost to Canon (however, some heroes firmly oppose this, this time, Nikon has re

Mobile phone camera Basics Http://blog.csdn.net/qikaibinglan/article/details/5882821 As a new mobile phone shooting function, the built-in digital camera function is the same as the low-end (0.1 million-1.3 million pixels) digital camera we usually see. Compared with traditional cameras, traditional cameras use "film" as their carrier to record information. The "film" of digital cameras is their imaging and photosensitive device, which is the heart o

brightness (intensity) will greatly decrease with the distance, so the range of ranging is very limited. This method is very effective and cost-effective for close range ( Figure: single-line red laser For the second method, the advantage is that it is easy to use 2D Lidar for transformation. Compared with the first method, the scanning distance is farther under the same laser output power. Of course, due to the need to control extra degrees of freedom, the error may be large, and the scanning

Crop factor)Because the imaging chip in the camera is usually less than 35mm film, it has different characteristics when you place the lens for the SLR camera on the DSLR camera. It seems that the image has been cropped, so there is a cropping coefficient. For example, a 100mm lens will change to a 160mm lens on a camera with a cropping factor of X (for example, Canon eosdigital rebelxti. Or 75mm of the lens will change to 113mm on a x cropping camera

resolution. Comparison of official MTF curves of Nikon 18-70 and Sigma 17-70HSM lenses 101 about MTF: I have never insisted that movie friends go to the "lens" MTF Curve, because it is easy to "get angry" and regard it as the "final test standard of the camera", ignoring the comprehensive evaluation of the camera. In fact, the MTF Curve can only be used as a reference for the imaging effect of the lens. It does not reflect distortion, glare, color

)/2;}Break;Default:Break;}// Create a bmp ImageImage bitmap = new System. Drawing. Bitmap (towidth, toheight );// Create a canvasGraphics g = System. Drawing. Graphics. FromImage (bitmap );// Set a high quality Interpolation MethodG. InterpolationMode = System. Drawing. Drawing2D. InterpolationMode. High;// Set high quality and smooth Low SpeedG. SmoothingMode = System. Drawing. Drawing2D. SmoothingMode. HighQuality;// Clear the canvas and fill it with a transparent background colorG. Clear (Col

Windows Device Independent Bitmap DIMAP (rov): SPOT DIMAP AirSAR (ro): AirSAR Polarimetric Image RS2 (ro): RadarSat 2 XML Product PCIDSK (rw+v): PCIDSK Database File PCRaster (rw): PCRaster Raster File ILWIS (rw+v): ILWIS Raster Map SGI (rw+): SGI Image File Format 1.0 SRTMHGT (rwv): SRTMHGT File Format Leveller (rw+): Leveller heightfield Terragen (rw+): Terragen heightfield HDF4 (ro): Hierarchical Data Format Release 4 HDF4Image (rw+):

Windows Image Acquisition (WIA)Windows Image Acquisition (WIA) is the still Image acquisition platform in the Windows family of operating systems Startin G with Windows Millennium Edition (Windows Me) and Windows XP. Introduction Benefits of Windows Image Acquisition 2.0 For application writers For Device manufactures For Scanner Users Development of Windows Image acquisition Overview of Windows Image acquisition Facts about Windows Image Acq

Af:auto Focus AutofocusPdaf:phase Detection AF Phase FocusCaf:contrast Detection Contrast Focus/contrast focus (continuous shooting with a certain step, select a large position of contrast value)Transferred from: http://www.jianshu.com/p/1ccbaf458354Autofocus (auto focus) is a technology developed in the the 1960s and is used primarily in cameras and other optical devices. Many technologies are needed, such as semiconductors, optoelectronics, Micro motors and other support.It has been a huge wav

1) Super omnipotent space CCD:In the publicity materials of domestic merchants of ccd dr, their Dr is called Super CCD, universal CCD, N-generation CCD, and even space CCD (foreign standard manufacturers generally do not do this ), in fact, the so-called space technology is purely human, because all CCD technologies come from the earliest spyware satellite detection technology to replace the disposable plastic film boxes that must be recycled, satellite photos can be taken for a long time and 24

When purchasing a digital camera, I believe many people will feel overwhelmed by the complicated parameters of the digital camera. Due to the rapid development of digital imaging technology, even those who often pay attention to this industry are often confused about some new technologies. Now let's talk about the definition of the main technical indicators on the market, hoping to help consumers buy digital cameras.　　I. Basic Knowledge pixel, photose

One of the basic tasks of computer vision is to calculate the geometrical information of objects in three-dimensional space from the image information acquired by the camera, and to reconstruct and recognize the object, and the relationship between the three-dimensional geometric position of a point on the surface of a space object and its corresponding point in the image is determined by the geometric model of the camera imaging. These geometric mode

The following is an example of how to call pytesseract to identify a website verification code in python. I think this is quite good. now I will share it with you and give you a reference. Let's take a look at the introduction of pytesseract. 1. pytesseract description Pytesseract latest version 0.1.6, URL: https://pypi.python.org/pypi/pytesseract Python-tesseract is a wrapper for google's Tesseract-OCR(Http://code.google.com/p/tesseract-ocr/). It is also useful asStand-alone invocation script

Super-resolution reconstruction is a hot spot in the field of image restoration, which can minimize the signal of original scene in the case of limited hardware, and plays an important role in the fields of astronomical exploration and microscopic imaging. Imaging equipment for the object imaging, because the distance, imagin