[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Farrell et al., 2006 - Google Patents

Resolution and light sensitivity tradeoff with pixel size

Farrell et al., 2006

View PDF
Document ID
10452302779108310504
Author
Farrell J
Xiao F
Kavusi S
Publication year
Publication venue
Digital Photography II

External Links

Snippet

When the size of a CMOS imaging sensor array is fixed, the only way to increase sampling density and spatial resolution is to reduce pixel size. But reducing pixel size reduces the light sensitivity. Hence, under these constraints, there is a tradeoff between spatial resolution …
Continue reading at web.stanford.edu (PDF) (other versions)

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/335—Transforming light or analogous information into electric information using solid-state image sensors [SSIS]
    • H04N5/357—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225—Television cameras; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/235—Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
    • H04N5/243—Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor by influencing the picture signal, e.g. signal amplitude gain control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/335—Transforming light or analogous information into electric information using solid-state image sensors [SSIS]
    • H04N5/351—Control of the SSIS depending on the scene, e.g. brightness or motion in the scene
    • H04N5/355—Control of the dynamic range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225—Television cameras; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/232—Devices for controlling television cameras, e.g. remote control; Control of cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in, e.g. mobile phones, computers or vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré, halo, even if the automatic gain control is involved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration, e.g. from bit-mapped to bit-mapped creating a similar image
    • G06T5/001—Image restoration
    • G06T5/002—Denoising; Smoothing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration, e.g. from bit-mapped to bit-mapped creating a similar image
    • G06T5/001—Image restoration
    • G06T5/003—Deblurring; Sharpening
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
    • H04N1/00007—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for relating to particular apparatus or devices
    • H04N1/00013—Reading apparatus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration, e.g. from bit-mapped to bit-mapped creating a similar image
    • G06T5/007—Dynamic range modification
    • G06T5/009—Global, i.e. based on properties of the image as a whole

Similar Documents

Publication Publication Date Title
Farrell et al. Resolution and light sensitivity tradeoff with pixel size
US8175378B2 (en) Method and system for noise management for spatial processing in digital image/video capture systems
Xiao et al. High dynamic range imaging of natural scenes
Granados et al. Optimal HDR reconstruction with linear digital cameras
CN204498282U (en) There is the imaging system of visible ray photosensitive pixel and infrared light photosensitive pixel
US8150201B2 (en) Image processing apparatus, method, and computer program with pixel brightness-change detection and value correction
US8264576B2 (en) RGBW sensor array
EP2420051B1 (en) Producing full-color image with reduced motion blur
CN108650497B (en) Imaging system with transparent filter pixels
Irie et al. A technique for evaluation of CCD video-camera noise
US20090274387A1 (en) Method of capturing high dynamic range images with objects in the scene
US20140247365A1 (en) Techniques for selective noise reduction and imaging system characterization
KR20110048922A (en) Method of modeling integrated noise and method of reducing noises in image sensors
EP1667435A2 (en) Sensing apparatus, method for sensing energy field and camera
TW201143413A (en) System and method for detecting and correcting defective pixels in an image sensor
JP5420730B2 (en) Method and camera for estimating an average signal to noise ratio value of an image
KR101813292B1 (en) Method for improving images
Xiao et al. Psychophysical thresholds and digital camera sensitivity: the thousand-photon limit
JP2008085634A (en) Imaging apparatus and image processing method
Farrell et al. Using visible SNR (vSNR) to compare the image quality of pixel binning and digital resizing
CN110913148B (en) Method for measuring illumination condition by using double cameras
Yao et al. Noise reduction for differently exposed images
Cho et al. Alternating line high dynamic range imaging
JP2009290795A (en) Image processor, image processing method, image processing program, recording medium, and electronic information device
Hirakawa et al. Advancing the digital camera pipeline for mobile multimedia: Key challenges from a signal processing perspective