如果一个场景既有非常明亮的物体,也有非常黑暗的物体,亮度跨度很大,我们就称之为“高动态范围 High Dynamic Range(HDR)”场景。 然而,具体对于多大的跨度才算高动态,目前还没有一个标准的定义,一般情况下但是只要比传统的照相机/显示器可以拍摄/显示的动态范围高就可以认为是高动态。 在高动态场景下,我们人类无法...
Discloses a high dynamic range CMOS image sensor. 该图像传感器的像素包含像素内存储器. The image sensor pixel including the pixel memory. 进一步地,所述各像素可以具有变化的积分周期. Further, each pixel may have varying said integration period. 积分周期部分地由之前的积分周期内存储在像素内存储器中...
Imax 是Imager的最大不饱和电流---也可以说是sensor刚刚饱和时候的电流 Imin是Imager的底电流(blacklevel) 。 Dynamic range potential of various image sensor types Note: the maximum dynamic range is never quite achieved, since in practice the noise level takes up to ~2 bits off the useful pixel ra...
These varying exposures are then processed by the image sensor, which merges them to form a complete image. This technique mimics the dynamic range of the human eye, effectively replicating what we naturally perceive. The process involves merging these multiple exposures into a single image ...
Since the image sensor has a narrow dynamic range of photography, it cannot photograph the range that can be seen by the human eye. If you are going to capture a bright subject, the dark areas will be blacked out, and if you are going to capture a dark subject, the bright areas will...
High dynamic range active pixel sensor arrays for digital x-ray imaging using a-Si : H Hydrogenated amorphous silicon (a-Si:H) active matrix-flat panel imagers have gained considerable significance in large area digital imaging applications, in view of their large area readout capability. Current...
A Design Idea for a colour detector shows the sensor capable of generating an RGB triplet over a high dynamic range, a useful attribute for machine vision applications. The circuit implements auto-exposure control to achieve this. Thus, RGB values for a subject are invariant over a range of ...
Sub-1-V Supply Self-Adaptive CMOS Image Sensor Cell With 86-dB Dynamic Range This letter presents a high dynamic range CMOS active pixel structure operating at a sub-1-V supply voltage, which is implemented using a standard 0.18-mum... S Lee,K Yang - 《IEEE Electron Device Letters》 被...
The dynamic measurement range of the MEMS IMU is controlled by controlling the gain of a signal amplifier before the analog to digital converter (ADC) to make full use of the ADC range. In one embodiment, two or more MEMS inertial sensor sets are installed in the IMU. One of the sensor...
image sensor to maintain a high dynamic range when operating in global shutter operation. The array of photodiodes may be formed on a first chip and the charge overflow circuit may be formed on a second chip that is coupled to the first chip. The charge overflow circuit may be connected to...