H04N23/70

METHODS AND SYSTEMS FOR ADAPTIVE IMAGING FOR LOW LIGHT SIGNAL ENHANCEMENT IN MEDICAL VISUALIZATION

Adaptive imaging methods and systems for generating enhanced low light video of an object for medical visualization are disclosed and include acquiring, with an image acquisition assembly, a sequence of reference frames and/or a sequence of low light video frames depicting the object, assessing relative movement between the image acquisition assembly and the object based on at least a portion of the acquired sequence of reference video frames or the acquired sequence of low light video frames, adjusting a level of image processing of the low light video frames based at least in part on the relative movement between the image acquisition assembly and the object, and generating a characteristic low light video output from a quantity of the low light video frames, wherein the quantity of the low light video frames is based on the adjusted level of image processing of the low light video frames.

IMAGE PICKUP APPARATUS WITH FLASH BAND COMPENSATION TECHNIQUE, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM
20170359533 · 2017-12-14 ·

An image pickup apparatus which is capable of, even when a flash band appears during a zooming operation, properly compensating for the flash band to generate a post-compensation image having no different levels of luminance. A lens unit has a zoom function. Image information generated based on image signals output from an image pickup device, which sequentially starts exposure and sequentially reads out signals for each row of pixels, is held in a memory unit. Based on the image information, the flash band caused by an external flash and extending across a plurality of frames is detected, and frames in which the flash band was detected are corrected to obtain an image having no different levels of luminance. The frames are corrected according to a calculated zoom change ratio of the lens unit when the zoom change ratio does not fall inside a first range determined in advance.

IMAGE SENSORS WITH LED FLICKER MITIGATON GLOBAL SHUTTER PIXLES
20170350755 · 2017-12-07 · ·

An image sensor may include one or more pixels having a charge steering structure that may selectively route charge from a photodiode to increase the dynamic range of the pixel. The charge steering structure may be a coupled gate structure that routes overflow charge to a voltage supply and to one or more integrating storage structures during an exposure period. The charge steering structure may be two integrating storage structures directly connected to the photodiode that each integrate charge generated by the photodiode in an alternating fashion during an exposure period. Storage structures and transistors within the charge steering structure may receive control signals, which may be asserted in a mutually exclusive manner. Pixels may also include a dual-gain structure, which may provide additional charge storage capacity.

MEASUREMENT UNIT, AND MEASUREMENT APPARATUS AND METHOD

A measurement pixel unit, and a measurement apparatus and a measurement method using same. The measurement apparatus comprises a light source that can be operated to emit light so as to illuminate a measured object; a photosensitive module may output an electrical signal by means of a first circuit receiving a first modulation signal and a second circuit receiving a second modulation signal; a processing module may receive different control signals to perform control, and thus may work at different modes in a measurement system; the two circuits can separately output the electrical signal corresponding to the phase delay of one of delay phase reception control signals, thereby achieving the accuracy of measurement information; moreover, the system further can perform reasonable arrangement on phase delay information and exposure duration information in a sub frame at a certain frame rate mode, thereby ensuring the high efficiency of the whole system.

INSTALLATION ASSISTANCE APPARATUS, INSTALLATION ASSISTANCE METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

An installation assistance apparatus (100) includes a first image capture unit and a second image capture unit that are placed in such a way as to face each other in a plan view, an acquisition unit (102) acquiring a first image from the first image capture unit, a detection unit (104) detecting a position of at least part of the second image capture unit in the first image by processing the first image, a determination unit (106) determining whether the position of the second image capture unit satisfies a criterion, and an output processing unit (108) causing a determination result by the determination unit (106) to be output.

ENTROPY MAXIMIZATION BASED AUTO-EXPOSURE

An image capture apparatus may include an image sensor, a motion sensor, and an auto-exposure unit. The auto-exposure unit may obtain an input image captured during an exposure interval and corresponding motion data indicating motion of the image capture apparatus during the exposure interval. The auto-exposure unit may obtain image information-amount data for the input image. The auto-exposure unit may obtain derivative information-amount data based on the information-amount data and a candidate exposure adjustment. The auto-exposure unit may obtain an information-amount maximizing exposure interval based on the information-amount data and the derivative information-amount data. The image capture apparats may control the image sensor to obtain a subsequent input image signal representing a subsequent input image captured during the information-amount maximizing exposure interval, and output or store information representing the subsequent input image.

IMAGE PROCESSING APPARATUS
20170345392 · 2017-11-30 ·

An image processing apparatus includes: a first acquiring unit configured to acquire first image data; a second acquiring unit configured to acquire information related to a first exposure value; a setting unit configured to set any of a plurality of display modes; and a generating unit configured to generate second image data from the first image data, wherein in a case where a first display mode has been set, the generating unit generates second image data having brightness corresponding to the first exposure value, in a case where a second display mode has been set, the generating unit generates second image data having brightness corresponding to a second exposure value, and the second exposure value used in the second display mode is changeable in accordance with a user instruction.

Smartphone-based methods and systems

Arrangements involving portable devices (e.g., smartphones and tablet computers) are disclosed. One arrangement enables a content creator to select software with which that creator's content should be rendered—assuring continuity between artistic intention and delivery. Another utilizes a device camera to identify nearby subjects, and take actions based thereon. Others rely on near field chip (RFID) identification of objects, or on identification of audio streams (e.g., music, voice). Some technologies concern improvements to the user interfaces associated with such devices. Others involve use of these devices in connection with shopping, text entry, sign language interpretation, and vision-based discovery. Still other improvements are architectural in nature, e.g., relating to evidence-based state machines, and blackboard systems. Yet other technologies concern use of linked data in portable devices—some of which exploit GPU capabilities. Still other technologies concern computational photography. A great variety of other features and arrangements are also detailed.

BRIGHTNESS COMPENSATION METHOD AND DEVICE, AND COMPUTER STORAGE MEDIUM
20170331997 · 2017-11-16 ·

Provided are a brightness compensation method and device, and a computer storage medium. The method includes: dividing a captured picture into a preset number of blocks; determining depth of field information of an image in each block; and performing division block brightness compensation on the picture according to the determined depth of field information. The present invention solves the problem in the prior art of poor capturing quality, and thereby achieves the effect of improving capturing quality.

DYNAMICALLY OPERATING A CAMERA BASED ON A LOCATION OF THE CAMERA
20230171482 · 2023-06-01 ·

Methods, systems, and computer-readable storage media for dynamically operating a camera based on a location of the camera. A definition of a user-defined region and a set of rules for operating a camera within the user-defined region are obtained from a user. How to operate the camera within the user-defined region is then determined based on the set of rules. After receiving the definition of the user-defined region, it is determined whether the camera is located within the user-defined region, and upon determining that the camera is located within the user-defined region, the camera is to begin operation in accordance with the set of rules.