Samsung’s innovation in Tetracell technology for enhancing autofocus in low light conditions?
What is the new Tetracell technology for low light photography? According to Samsung’s research, Tetracell with asymmetric microlensing refers to a modified 4×4 sub-pixel array architecture.In a standard Tetracell layout, all 16 subpixels bin uniformly to maximize light sensitivity. The new technology (let’s call it Tetracell²) introduces asymmetric microlensing: border subpixels are capped with individual […]
Sony’s solution on existing SPAD architecture for mitigating low signal quality in low light
What is the new silicon-germanium SPAD architecture for low light photography? Standard camera sensors are made from silicon. Silicon absorbs visible light well, but its sensitivity drops sharply above roughly 700 nanometres in wavelength, which is the boundary where visible light ends and near-infrared begins. In near-total darkness, where visible light is almost absent but […]
Xiaomi’s software based alternate for mechanical shutters to reduce banding in unstable light conditions
What is the flicker-aware gradient exposure feature for low light photography? Artificial lighting flickers at 50 or 100 cycles per second depending on the country’s power grid frequency, far too fast for a person to notice by eye, but well within range of a camera’s exposure timing. When a camera’s exposure length lands awkwardly against […]
Huawei’s development in RYYB/RGBW sensor technologies to process low signal quality
What is RYYB sensor technology for low light photography? A RYYB sensor works by swapping the green filter for a yellow one across a sensor where every pixel is the same size. The yellow filter passes more light per pixel than green does, which is where the extra sensitivity comes from. How is Huawei innovating […]
Huawei’s plan on sensor-actuator synchronization to prevent shaky pictures in low light conditions
What is OIS-sensor actuator synchronization for low light photography? Optical image stabilization uses small motors to physically shift the lens or the sensor to counteract hand shake during a shot. In most current implementations, that motor runs at a fairly fixed power and switching pattern regardless of what the sensor is doing at that exact […]
Zeiss’ innovation on improving low light performance of telephoto lenses
How do telephoto lenses work in low light? A phone’s telephoto camera is limited by how much light its lens can physically let in, which depends on aperture size. A wider aperture lets in more light, but a wider aperture also needs more depth inside the phone to focus that light correctly, and a thin […]