Apple Inc.

Leland Stanford Junior University

University of Rochester

Henryk K Blasinski

Orhan Bulan

Gaurav Sharma

Xuemei Zhang

Yingjun Bai

Paul J Wang

Brian A Wandell

Jeffrey Caves

Joyce E Farrell

An electronic image capture device captures a first image of a scene at a first time. A first local tone mapping operator for a first portion of the first image is determined. The electronic image capture device further captures a second image of the scene at a second time. A motion of the electronic device between the first time and the second time is determined. A second local tone mapping operator for a second portion of the second image is determined. The second portion is determined to correspond to the first portion based, at least in part, on the determined motion of the electronic device. The second local tone mapping operator is determined based, at least in part, on the first local tone mapping operator. At least the second local tone mapping operator is applied to the second portion of the second image.

Camera motion aware local tone mapping

Various aspects of the instant disclosure are directed to imaging tissue. As may be implemented in accordance with one or more embodiments, aspects of the present disclosure are directed to apparatuses and methods involving the following. A light source includes an array of light emitters that illuminate a tissue region of a heart wall with light at different wavelength ranges. A light collector collects multispectral images including respective images collected at each of the different wavelength ranges at which the tissue region is illuminated. A catheter positions the light source and light collector proximate the tissue region of the heart wall for respectively illuminating the tissue region and collecting the multispectral images. A display circuit collects and displays one or more images depicting a condition of the health of heart wall tissue, based on the respective images collected at the different ones of the wavelength ranges.

Visualization of heart wall tissue

A new framework for extending monochrome barcodes to color which offers higher data rates is described. In one embodiment of the present invention, the framework encodes independent data in each of the cyan, magenta, and yellow print colorant channels commonly used in color printing and decodes the data from each of the complementary red, green, and blue channels in capture color channels. The framework effectively increases the capacity of monochrome barcodes by a factor of three. In another embodiment of the present invention, a physical model based approach mitigates the effect of cross-channel interference among the print-colorant channels and capture color channels. In another embodiment of the invention, a pilot block methodology is used to estimate the model parameters and enable cross-channel interference cancellation. In another embodiment of the invention, an expectation maximization (EM)-type methodology estimates the model parameters and enables cross-channel interference cancellation.

Color barcodes for mobile applications: a per channel framework

Growing community of inventors

Stanford, CA, United States of America

Henryk K Blasinski