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.

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 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.

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.

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.

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.

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 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.

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.