Abstract:
Methods and systems to create an image in which objects at different focal depths all appear to be in focus. In an embodiment, all objects in the scene may appear in focus. Non-stationary cameras may be accommodated, so that variations in the scene resulting from camera jitter or other camera motion may be tolerated. An image alignment process may be used, and the aligned images may be blended using a process that may be implemented using logic that has relatively limited performance capability. The blending process may take a set of aligned input images and convert each image into a simplified Laplacian pyramid (LP). The LP is a data structure that includes several processed versions of the image, each version being of a different size. The set of aligned images is therefore converted into a corresponding set of LPs. The LPs may be combined into a composite LP, which may then undergo Laplacian pyramid reconstruction (LPR). The output of the LPR process is the final blended image.
Abstract:
Methods and systems to create an image in which objects at different focal depths all appear to be in focus. In an embodiment, all objects in the scene may appear in focus. Non-stationary cameras may be accommodated, so that variations in the scene resulting from camera jitter or other camera motion may be tolerated. An image alignment process may be used, and the aligned images may be blended using a process that may be implemented using logic that has relatively limited performance capability. The blending process may take a set of aligned input images and convert each image into a simplified Laplacian pyramid (LP). The LP is a data structure that includes several processed versions of the image, each version being of a different size. The set of aligned images is therefore converted into a corresponding set of LPs. The LPs may be combined into a composite LP, which may then undergo Laplacian pyramid reconstruction (LPR). The output of the LPR process is the final blended image.
Abstract:
A quantization factor is determined using information from a histogram of transform coefficients that are produced from a transformed video frame. The histogram is used in estimating an encoded frame size of the video frame that is currently in the process of being encoded. The quantization factor used in the quantization step of the video encoding is adjusted for the current video frame based on the information from the histogram. The histogram is balanced against the desired length of the encoded frame size. Cutoff thresholds in the histogram correlate with different choices of quantization factors, and the ratio of points on or below those thresholds are used to estimate the size of the encoded frame.
Abstract:
In some embodiments, an electronic device comprises a first camera and a second camera, a first buffer to receive a first set of input frames from the first camera and a second buffer to receive a second set of input frames from the second camera, a single image signal processor coupled to the first buffer and the second buffer to process the first set of input frames from the first frame buffer using one or more processing parameters stored in a first memory to generate a first video stream and to process the second set of input frames from the second frame buffer using one or more processing parameters stored in a second memory register to generate a second video stream, and a memory module to store the first video stream and the second video stream.
Abstract:
CORRECTING PAGE CURL IN SCANNED BOOKS A computer implemented method for correcting distortion in an image of a page includes identifying a set of high quality (HQ) words in undistorted regionsof one or more images of pages having content related to the content of the page. At least one distorted word in the image the page is identified such that each distorted word corresponds to a high quality word of the set. A global transformation function is generated for application to the image of the page so as to transform the distorted word into its corresponding high quality word. The global transformation function is applied to pixels of the image of the page.
Abstract:
Methods for operating a printer are provided. In one aspect, a method has the steps of receiving image data and production data for printing a set of images with each image having a defined size and shape, determining a finishing configuration of a finishing system; and determining a priority setting between an output rate priority and an efficiency priority. The images are organized for printing on the receiver in the defined sizes and shapes based upon the determined priority and the finishing configuration and the images are printed on the receiver as organized. The receiver is finished to provide prints of the images each having the defined size and shape for that image.