Cauwerts et al., 2012 - Google Patents
Comparison of the vignetting effects of two identical fisheye lensesCauwerts et al., 2012
- Document ID
- 6820850303720906818
- Author
- Cauwerts C
- Deneyer A
- Publication year
- Publication venue
- Leukos
External Links
Snippet
High dynamic range (HDR) imaging techniques are increasingly used by lighting researchers in building applications to capture luminances in the field of view. This paper deals with the photometric calibration and more particularly with vignetting effect correction …
- 230000000694 effects 0 title abstract description 58
Classifications
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10024—Color image
-
- 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
- G06T5/008—Local, e.g. shadow enhancement
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Pierson et al. | Tutorial: luminance maps for daylighting studies from high dynamic range photography | |
| Inanici | Evaluation of high dynamic range photography as a luminance data acquisition system | |
| Jakubiec et al. | Accurate measurement of daylit interior scenes using high dynamic range photography | |
| Stumpfel et al. | Direct HDR capture of the sun and sky | |
| Inanici | Evalution of high dynamic range image-based sky models in lighting simulation | |
| Jakubiec et al. | Improving the accuracy of measurements in daylit interior scenes using high dynamic range photography | |
| CN110166704B (en) | Calibration method and device of multispectral camera | |
| Cauwerts et al. | Comparison of the vignetting effects of two identical fisheye lenses | |
| CN107302667A (en) | A camera interchangeable dynamic spectroscopic imaging system and its application method for high dynamic imaging | |
| CN102254315B (en) | Atmospheric visibility observation method implemented by using double digital cameras | |
| US8243162B2 (en) | Automatic white balancing using meter sensors | |
| CN105812661B (en) | A kind of digital camera uniformity correcting method based on light box and gray card | |
| CN107302668A (en) | A High Dynamic Range Imaging Module Based on Wheel Dynamic Spectroscopy | |
| Wolska et al. | Practical application of HDRI for discomfort glare assessment at indoor workplaces | |
| Moeck et al. | Illuminance analysis from high dynamic range images | |
| Pierson et al. | Luminance maps from High Dynamic Range imaging: calibrations and adjustments for visual comfort assessment | |
| Spasojević et al. | Sky luminance mapping for computational daylight modeling | |
| CN111355896B (en) | How to get the automatic exposure parameters of the all-day camera | |
| CN109788278B (en) | Camera glare testing method and glare collecting device thereof | |
| Kim et al. | A low-cost stereo-fisheye camera sensor for daylighting and glare control | |
| Kumar et al. | Commissioning of camera calibration factor for luminance measurement | |
| Li et al. | Improving high dynamic range image based light measurement | |
| MacPherson et al. | A 360° omnidirectional photometer using a Ricoh Theta Z1 | |
| Pierson et al. | Luminance maps from High Dynamic Range imaging: photometric, radiometric and geometric calibrations | |
| Kumar et al. | Camera calibration curves for luminance data acquisition using MATLAB |