Image Sensing Technology. A Level-Conversion Method for Wide-Dynamic-Range Camera System.
نویسندگان
چکیده
منابع مشابه
Logarithmic Image Sensor for Wide Dynamic Range Stereo Vision System
Stereo vision is the most universal way to get 3D information passively. The fast progress of digital image processing hardware makes this computation approach realizable now. It is well known that stereo vision matches 2 or more images of a scene, taken by image sensors from different points of view. Any information loss, even partially in those images, will drastically reduce the precision an...
متن کاملPerceptual Dynamic Range for In-Camera Image Processing
Image sensors in digital cameras capture values which are proportional to light intensity and within a range of between 3-4 orders of magnitude. These values are typically passed through a non-linearity prior to quantisation to a range of around 2 orders of magnitude. The purpose of the non-linearity is to ensure that the quantisation rate is approximately proportional to human sensitivity (see...
متن کاملA Dual Exposure Method for Wide Dynamic Range Operation of CMOS Image Sensors
Although image sensor applications have seen considerable progress, industry requirements are also becoming more demanding as image technology in CMOS image sensors (CIS) is becoming more complex. The use of CMOS image sensors is recently starting to expand into DSLR cameras, medical sensors, and defense and space applications, which require a wide dynamic range of operation. While several deca...
متن کاملA Wide Dynamic Range Playback System for Radar Signals
I mprovements in the speed and resolution of both digital to ana-log converters (DACs) and analog to digital converters (ADCs) have resulted in a continual push to move more func-tionality into the digital signal processing arena. RF and analog signal processing methodologies such as filtering and frequency translation are being handled increasingly in the digital domain, where near-ideal filte...
متن کاملA 640×512 CMOS Image Sensor with Ultra Wide Dynamic Range Floating-Point Pixel-Level ADC
A 640×512 CMOS image sensor with an 8b bit-serial Nyquist rate ADC per 4 pixels achieves 10.5 × 10.5 μm pixel size at 29% fill factor in 0.35 μm CMOS technology. Binary floating point output with measured dynamic range of of 65536 : 1 is achieved by multiple sampling at exponentially increasing exposure times. D. Yang, A. El Gamal, B. Fowler, and H. Tian 1 Dynamic range, defined as the ratio of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the Institute of Image Information and Television Engineers
سال: 2002
ISSN: 1881-6908,1342-6907
DOI: 10.3169/itej.56.469