228 results about "Exposure level" patented technology

Techniques for creating a High Dynamic Range (HDR) image within a consumer grade digital camera from a series of images of a scene captured at different exposure levels, and displaying the HDR image on the camera's built-in display are provided. The approach employs mixing images of the series to incorporate both scene shadow and highlight details, and the removing of “ghost” image artifacts appearing in the mixed HDR image resulting from movement in the scene over the time the series images are captured. The low computational resource utilization of the image mixing and ghost removal processing operations, along with the ability to commence image mixing and ghost removal prior to the acquisition of all series images, can significantly reduce the time required to generate and display a tone mapped HDR image.

Techniques for creating a High Dynamic Range (HDR) image within a consumer grade digital camera from a series of images of a scene captured at different exposure levels, and displaying the HDR image on the camera's built-in display, are provided. The approach employs mixing images of the series to incorporate both scene shadow and highlight details, and the removing of “ghost” image artifacts appearing in the mixed HDR image resulting from movement in the scene over the time the series images are captured. The low computational resource utilization of the present invention's image mixing and ghost removal processing operations, along with the present invention's ability to commence image mixing and ghost removal prior to the acquisition of all series images, can significantly reduce the time required to generate and display a tone mapped HDR image.

Techniques for creating a High Dynamic Range (HDR) image within a consumer grade digital camera from a series of images of a scene captured at different exposure levels, and displaying the HDR image on the camera's built-in display are provided. The approach employs mixing images of the series to incorporate both scene shadow and highlight details, and the removing of “ghost” image artifacts appearing in the mixed HDR image resulting from movement in the scene over the time the series images are captured. The low computational resource utilization of the image mixing and ghost removal processing operations, along with the ability to commence image mixing and ghost removal prior to the acquisition of all series images, can significantly reduce the time required to generate and display a tone mapped HDR image.

An image processing apparatus includes: a conversion section converting a moving object image being an image in a region corresponding to a moving object included in a reference image and other images constituting images generated under different exposure conditions. The image processing apparatus also includes a substitution section substituting the generated exposure level converted moving object image with a region corresponding to an exposure level converted moving object image of each of the other images corresponding to an exposure level as a reference exposure level at the time of generating the exposure level converted moving object image to generate a substitute image for each of the other images. A combination section combines the substitute image and the reference image to generate a combined image.

Disclosed are methods, apparatus, systems, and non-transitory, tangible computer-readable media associated with generating bids for multi-channel advertising environments, including in embodiments, generating a multi-channel advertising model. A multi-channel advertising model may be generated and used to estimate the effect of various advertisements and / or events that occur to an individual advertisee across various modeled advertising channels. An advertisee may be tracked across multiple channels, such as, for example, by using one or more cookies as the advertisee visits various web sites. Embodiments may calculate marginal contributions to a conversion event by various advertising events that have occurred along the sales funnel. Various revenue attributions may be generated as a function of a marginal contribution that an event had on the final conversion. Embodiments may provide an advertiser with estimates of the advertisee's value through time as well as how the advertisee's value evolves based on events taken by the advertisee and / or by changing exposure levels across multiple channels. From these estimates, a bidding strategy directing bids for advertising events may be generated for use by an advertiser.

To provide an excellent optical information recording method, optical information recording medium and optical information recording apparatus both of which use the method. The method generates no excessively-exposed region, can sufficiently fix recorded information, and never reduce the sensitivity of non-recorded regions. This is achieved because the method applies a fixing beam onto at least a portion of an exposed region of a recording layer of the optical information recording medium, the recording layer recording information by holography, at an exposure level T (mJ / cm2) that satisfies the condition H<(S+T)<2H (where S is an integrated exposure level (mJ / cm2), which is the total of the exposure level in each predetermined region that constitutes the exposed region where an interference image has been recorded by irradiating the recording layer with an information beam and a reference beam, and H is a minimum fixing exposure level (mJ / cm2) required to fix the interference image).

A solid imaging apparatus and method employing levels of exposure varied with gray scale or time or both of digitally light projected image of a cross-section of a three-dimensional object on a solidifiable photopolymer build material. The gray scale levels of exposure of projected pixels permits the polymerization boundaries in projected boundary pixels to be controlled to achieve preserved image features in a three-dimensional object and smooth out rough or uneven edges that would otherwise occur using digital light projectors that are limited by the number of pixels in an image projected over the size of the image. Software is used to control intensity parameters applied to pixels to be illuminated in the image projected in the cross-section being exposed in the image plane.

A system for the detection of brightness uniformity variations in light-emitting elements in an OLED display is described, comprising: a) an OLED display having a plurality of light-emitting elements having perceptible brightness uniformity variations less than a threshold value when driven with a common signal; b) an imager with one or more light-sensitive sensor elements having variable light exposure levels and sensitive to the light emitted by the light-emitting elements, where the sensor elements are not capable of detecting brightness uniformity variations less than the threshold value at a first light exposure level; c) optical elements arranged so that the light-sensitive sensor elements are exposed to the light-emitting elements of the OLED display; and d) a controller programmed to control the OLED display and cause the light-emitting elements to illuminate and the imager to acquire images of the illuminated light-emitting elements in the OLED display at at least the first and a different second light exposure level.

A method and system for exposing a light sensitive material using device for forming a row of spots of light onto the light sensitive material located on a focal plane, device for modulating each of the spots according to imaging data so that at any point of time, the row of spots forms a data pattern according to the imaging data, device for generating relative motion between the imaging mechanism and the light sensitive material on the focal plane, the direction of motion substantially parallel to the direction of the row of spots on the light sensitive material; and data synchronizing device for shifting the imaging data into the modulating device at a rate determined by the speed of relative motion to maintain the image of any data pattern substantially stationary on the light sensitive material.

A method for controlling the exposure of an active pixel array electronic still camera includes the steps of: integrating photocurrent in each pixel during an integration time period; collecting overflow charge from all pixels in the array during the integration time period; developing an overflow signal as a function of the overflow charge; and terminating the integration time period when the overflow signal exceeds a preset threshold level selected to represent a desired reference exposure level. Apparatus for performing the method of the present invention includes circuitry for integrating photocurrent in each pixel during a integration time period; circuitry for diverting and detecting overflow charge from all pixels in the array during the integration time period; circuitry for developing an overflow signal as a function of the overflow charge; and circuitry for terminating said integration time period when the overflow signal exceeds a preset threshold level selected to represent a desired reference exposure level.

Some embodiments provide a method of operating a device to capture an image of a high dynamic range (HDR) scene. Upon the device entering an HDR mode, the method captures and stores multiple images at a first image exposure level. Upon receiving a command to capture the HDR scene, the method captures a first image at a second image exposure level. The method selects a second image from the captured plurality of images. The method composites the first and second images to produce a composite image that captures the HDR scene. In some embodiments, the method captures multiple images at multiple different exposure levels.

An analog-to-digital converter (ADC) generates an output digital value equivalent to the difference between two analog signal values. The ADC 30 receives a first analog signal level, a second analog signal level and a ramp signal. A counter 32 is operable to count in a single direction. A control stage is arranged to enable the counter 32 based on a comparison 19 of the ramp signal with the first analog signal and the second analog signal. A digital value accumulated by the counter during a period when it is enabled forms the output. The ADC can perform the conversion during a single cycle of the ramp signal. The counter 32 can be loaded with a starting digital value representing an exposure level accumulated during a previous exposure period. Techniques are described for reducing the conversion time.

A method is provided for forming high dielectric constant (high-k) films for semiconductor devices. According to one embodiment, a metal-carbon-oxygen high-k film is deposited by alternately and sequentially exposing a substrate to a metal-carbon precursor and near saturation exposure level of an oxidation source containing ozone. The method is capable of forming a metal-carbon-oxygen high-k film with good thickness uniformity while impeding growth of an interface layer between the metal-carbon-oxygen high-k film and the substrate. According to one embodiment, the metal-carbon-oxygen high-k film may be treated with an oxidation process to remove carbon from the film.

Systems and methods are provided for producing a stereo disparity map representing an imaged subject. A plurality of sensors (102 and 104) are operative to produce a plurality of images. Each image has an associated exposure according to an exposure level of an associated sensor. A system control (106) determines exposure levels for the plurality of sensors according to an exposure selection algorithm. A disparity processing component (112) is operative to generate a stereo disparity map from a plurality of images. An image merger (110) is operative to merge a plurality of images to produce a composite image having an increased dynamic range.

Techniques and tools for high dynamic range (HDR) image rendering and generation. An HDR image generating system performs motion analysis on a set of lower dynamic range (LDR) images and derives relative exposure levels for the images based on information obtained in the motion analysis. These relative exposure levels are used when integrating the LDR images to form an HDR image. An HDR image rendering system tone maps sample values in an HDR image to a respective lower dynamic range value, and calculates local contrast values. Residual signals are derived based on local contrast, and sample values for an LDR image are calculated based on the tone-mapped sample values and the residual signals. User preference information can be used during various stages of HDR image generation or rendering.

In embodiments of the present invention improved capabilities are described for RFID tags with hardened memory, where the memory comprises a plurality of one time programmable (OTP) non-volatile memory locations for storing data, wherein the plurality of OTP non-volatile memory locations are configured to emulate a hardened memory system that retains data stored in the OTP non-volatile memory locations, wherein the data stored is retained after exposure of the RFID tag to an ionizing radiation exposure with an exposure level equal to or greater than 25 kGy.

A dynamic range expanding apparatus in an image processing system, capable of more stably expanding dynamic visual range by removing motion blurring caused when images each having different exposure levels are combined, and a dynamic range expanding method, are provided. In this apparatus, a video multiplexing unit divides a digital video signal, which is converted from an analog video signal output by a charged coupled device, into an over-exposed video signal and an under-exposed video signal having different exposure levels. A motion correction unit corrects the moving part of an excessively-exposed video according to the amount of movement of an image acquired by the charged coupled device, using the output of the video multiplexing unit. A video output unit interpolates a dark part of a resultant signal corrected by the motion correction unit and a bright part of the under-exposed video signal using a luminance weight produced from the under-exposed video signal, and outputs the interpolated result as an expanded video signal having an expanded dynamic range.

Improving the dynamic range of captured images is disclosed by using sub-pixel arrays to capture light at different exposures and generate color pixel outputs for an image in a single frame. Each sub-pixel array can include multiple sub-pixels. The sub-pixels that make up a sub-pixel array can include red (R) sub-pixels, green (G) sub-pixels, blue (B) sub-pixels, and in some embodiments, clear sub-pixels. Those sub-pixel arrays having clear sub-pixels effectively have a higher exposure level and can capture low-light scenes (for dark areas) better than those sub-pixel arrays without clear sub-pixels. Each sub-pixel array can produce a color pixel output that is a combination of the outputs of the sub-pixels in the sub-pixel array. Each sub-pixel in a sub-pixel array can have the same exposure time, or in some embodiments, individual sub-pixels within a sub-pixel array can have different exposure times to improve the overall dynamic range even more.

Cameras that can provide improved images by combining several shots of a scene taken with different exposure and focus levels is provided. In addition, cameras are provided, which have pixel-wise exposure control means so that high quality images are obtained for a scene with a high level of contrast. Furthermore, cameras are also provided, which have a number of imaging sensing means that can operator at different focus and exposure levels. Cameras that can take several images or videos of a scene with different exposure and focus levels and save all the images or videos for future processing are also provided.

The method comprises: shooting multi pictures with different exposure levels at same scene; according to the response curve of camera, portioning the each picture into several blocks; selecting the blocks having the most information to make block combination; using a fusion function to remove the edge effects between blocks to finally get an enhanced picture with wide dynamical range.

To generate a color image exhibiting few blocked-up colors or little color saturation. It is provided a image processing apparatus for processing an original image that is picked up, comprising: an image input part for inputting N original images having different exposure levels, where N is an integer of two or more, which are obtained by picking up images of the same subject in one of a simultaneous manner and a time-series manner; and a composite processing part for generating M output images, where M is an integer of one or more and less than N, by composing the N original images. The composite processing part compares color component signals in each corresponding pixel position with each other between the N original images, and sets the color component signal that produces a higher chroma as a color component signal in each pixel position of the output image.

A method of transforming the color appearance of a plurality of digital images includes receiving a plurality of digital images from a capture medium wherein each digital image includes a plurality of pixel values relating to at least three basic colors; calculating a color correction transform by using a non-linear adjustment that is independent of the digital images and which corrects an under-exposure condition as a function of the capture medium; and a linear functional relationship dependent upon the pixels of the basic colors, the linear functional relationship defining an exposure-level-dependent estimate of gray corresponding to the photographic response of the capture medium; and using the color correction transform to modify the pixels of the plurality of digital images wherein the pixels within a digital image are transformed with varying degrees of color modification as a function of exposure.

A method for monitoring environmental conditions within a shipping package includes generating a package shipment route and entering an environmental parameter corresponding to an exposure level beyond which a product, contained in the package, will perish. A wireless data monitor is inserted within the package, configured to monitor the environmental condition within the package along the shipment route, such that during shipment, the environmental data at the wireless data monitor; and during shipment, the collected environmental data is periodically transmitted to one or more wireless access points.

An image processing apparatus includes: a conversion section converting a moving object image being an image in a region corresponding to a moving object included in a reference image and other images constituting images generated under different exposure conditions so that the moving object image in the reference image corresponding to the moving object has the exposure levels of the other images so as to generate an exposure level converted moving object image for each of the other images; a substitution section substituting the generated exposure level converted moving object image with a region corresponding to an exposure level converted moving object image of each of the other images corresponding to an exposure level as a reference exposure level at the time of generating the exposure level converted moving object image to generate a substitute image for each of the other images; and a combination section combining the substitute image and the reference image to generate a combined image.

An image processing method and apparatus for obtaining a wide dynamic range image, the method including: obtaining a plurality of low dynamic range images having different exposure levels for a same scene; generating motion map representing whether motion occurred, depending on brightness ranks of the plurality of low dynamic range images; obtaining weights for the plurality of low dynamic range images; generating a weight map by combining the weights and the motion map; and generating a wide dynamic range image by fusing the plurality of low dynamic range images and the weight map. According to the image processing method and apparatus, it is possible to accurately detect motion area using a rank map, obtain a wide dynamic range image at a higher operation speed, and reduce a possibility that a phenomenon such as color warping occurs by directly combining images without using a tone mapping process.

Techniques for creating a High Dynamic Range (HDR) image within a consumer grade digital camera from a series of images of a scene captured at different exposure levels, and displaying the HDR image on the camera's built-in display are provided. The approach employs mixing images of the series to incorporate both scene shadow and highlight details, and the removing of 'ghost' image artifacts appearing in the mixed HDR image resulting from movement in the scene over the time the series images are captured. The low computational resource utilization of the image mixing and ghost removal processing operations, along with the ability to commence image mixing and ghost removal prior to the acquisition of all series images, can significantly reduce the time required to generate and display a tone mapped HDR image.

Provided herein are a wearable radiation detector and a method of controlling thereof, the detector including: the radiation collection unit operable to collect light and output a signal corresponding to the light collected; a memory; a display unit; a processor operable to receive the signal output by the radiation collection unit, to store a value in the memory corresponding to the signal output by the radiation collection unit, to output an output signal based at least on the signal corresponding to the light collected by the radiation collection unit and to control the display unit to display an indication corresponding to the output signal, wherein the determining includes continually calculating the maximum exposure level based on the light being received by the radiation collection unit.

An analog-to-digital converter (ADC) generates an output digital value equivalent to the difference between two analog signal values. The ADC 30 receives a first analog signal level, a second analog signal level and a ramp signal. A counter 32 is operable to count in a single direction. A control stage is arranged to enable the counter 32 based on a comparison 19 of the ramp signal with the first analog signal and the second analog signal. A digital value accumulated by the counter during a period when it is enabled forms the output. The ADC can perform the conversion during a single cycle of the ramp signal. The counter 32 can be loaded with a starting digital value representing an exposure level accumulated during a previous exposure period. Techniques are described for reducing the conversion time.

A system for calculating cyber-risk in a software application includes a cyber-risk calculator. The cyber-risk calculator receives a security assessment result sample having a list of security modules, each security module listing including a respective result of a security assessment of the application identifying a vulnerability and / or misconfiguration capable of being exploited and / or abused. When run in a risk calculation mode, the cyber-risk calculator determines a world partition of the application in the security assessment result sample belongs to, references a set of parameters from a parametrization database according to the world partition corresponding to the application, determines a cyber-risk exposure level for the application based upon the security assessment result sample and the set of parameters, and reports results of the cyber-risk calculation.