A new type of image sensor is emerging from the most advanced image sensor R&D laboratories in Japan. This sensor, termed an active pixel sensor (APS), may one day supplant charge-coupled devices (CCDs) in many applications. The charge-coupled device relies on the shifting of charge to read out the image. The active pixel sensor acts like a random access memory (RAM) device wherein each pixel c...

A 128 × 128 pixel functional image sensor was implemented. The sensor was able to capture images at 1,000 frame/s and extract the sizes and positions of 10 objects/frame when clocked at 8 MHz. The size of each pixel was 18 μm × 18 μm and the fill factor was 28%. The chip, 3.24 mm × 3.48 mm in size, was implemented with a 0.35 μm CMOS sensor process; the power consumption was 29.7 mW at 8 MHz. k...

In this paper, image noise characterization based on digital camera RAW data is studied and three different imaging technologies are compared. The three digital cameras used are Canon EOS D30 with CMOS sensor, Nikon D70 with CCD sensor and Sigma SD10 with Foveon X3 Pro 10M CMOS sensor. Due to different imaging sensor constructions, these cameras have rather different noise characteristics. The ...

Scanning Hall Probe Microscopy (SHPM) is a scanning probe microscopy technique developed to observe and image magnetic fields locally. This method is based on application of the Hall Effect, supplied by a micro hall probe attached to the end of cantilever as a sensor.  SHPM provides direct quantitative information on the magnetic state of a material and can also image magnetic induction under a...

In this paper, we present an efficient image alignment and enhancement method for multi-sensor images. The shape of the object captured in a multisensor images can be determined by comparing variability of contrast using corresponding edges across multi-sensor image. Using this cue, we construct a robust feature descriptor based on the magnitudes of the oriented edges. Our proposed method enabl...

The purpose of multi-focus image fusion is gathering the essential information and the focused parts from the input multi-focus images into a single image. These multi-focus images are captured with different depths of focus of cameras. A lot of multi-focus image fusion techniques have been introduced using considering the focus measurement in the spatial domain. However, the multi-focus image ...

Averaging of accumulated data is a standard technique applied to processing data with low signal-to-noise ratios (SNR), such as image signals captured in ultra-high-speed imaging. The authors propose an architecture layout of an ultra-high-speed image sensor capable of on-chip signal accumulation. The very high frame rate is enabled by employing an image sensor structure with a multi-folded CCD...

The operational (airborne) Enhanced/Synthetic Vision System will employ a helmet-mounted display with a background synthetic image encompassing a fused inset sensor image. In the present study, three subjects viewed an emulation of a descending flight to a crash site displayed on an SVGA monitor. Independent variables were: 3 fusion algorithms; 3 visibility conditions; 2 sensor conditions; and ...

Wavefront sensor noise and fidelity place a fundamental limit on achievable image quality in current adaptive optics ophthalmoscopes. Additionally, the wavefront sensor 'beacon' can interfere with visual experiments. We demonstrate real-time (25 Hz), wavefront sensorless adaptive optics imaging in the living human eye with image quality rivaling that of wavefront sensor based control in the sam...