An image recording method in an image processing apparatus, includes the steps of acquiring, from a plurality of cameras, respective video images which the plurality of cameras start capturing in the sea before a first light that is lit in a first color is turned on and end capturing after a second light that is lit in a second color is turned on after the first tight is turned on, detecting, for each of the video images, a difference in luminance between chronologically adjacent frames in the video image, associating times of frames between the video images on the basis of the difference, and recording the video images with the associated times in a recording medium.

An LED fixture is provided for photographic and theatrical lighting. The light fixture is particularly suitable for photographic and theatrical lighting by mounting LED elements directly or indirectly on articulating arms. The arms have a first pivot mounted segment connected by a hinge to a hub and a second pivot mounted segment connected by an intermediate hinge to said first pivot mounted segment.

Provided is a system that enables training for catheter surgery without using radiation. The system offering training for catheter surgery includes: a light source; a blood vessel model to which a catheter having a fluorescent agent applied thereto is inserted; a tank in which the blood vessel model is placed; a filter for rejecting white light that is not transmitted through the blood vessel model, of illuminating light from the light source; a camera for imaging fluorescence transmitted through the filter; a driver for changing the attitude of the light source; and a computer that performs a process of reversing black and white of an image signal output from the camera.

Methods, systems, and devices for image processing are described. Devices with one or more sensors (e.g., devices with multiple cameras, such as a dual camera device) may perform flash metering techniques, using an auxiliary camera, during a flash duration used for main camera image capture. For example, a dual camera device may control camera flash parameters (e.g., flash duration, flash power), via auxiliary camera flash metering, during main camera image capture (e.g., during main camera exposure for image capture operations). A main camera may begin exposure and a flash may be initiated. During the flash, an auxiliary camera may be configured to perform flash metering operations (e.g., via images captured by the auxiliary camera). Based on flash metering information from the auxiliary camera, the dual camera device may configure or adjust camera settings (e.g., exposure settings, flash duration, flash end time, flash power) during main camera exposure and image capture.

A remote control is described for controlling at least one group of flash devices for photography. The remote control is configured to send a pre-flash trigger signal, T.sub.PF, to the flash devices for initiating a pre-flash (PF), and to receive, from the camera, a flash adjustment value, VA. The remote control comprises a display and is configured to determine a main flash strength value, V.sub.MF, based on a pre-flash strength value, V.sub.PF, stored in the remote control, the flash adjustment value, VA, and a predetermined relationship between the pre-flash strength value, V.sub.PF, the flash adjustment value, VA, and the main flash strength value, V.sub.MF. The remote control displays the main flash strength value, V.sub.MF, on a display and sends a wireless main flash trigger signal, T.sub.MF, to the flash devices, for initiating a main flash, MF, with adjusted flash strengths.

A system and method for synchronizing a photographic lighting device to image acquisition by a camera using light emission profile information to position a light emission profile at a desired location in an image acquisition window. A light energy balance point of a light emission profile can be used to position the balance point at a desired location in an image acquisition window.

A flash housing for photographic purposes and method for controlling a flash light is disclosed. The flash housing comprises a flash forming element arranged to generate a flash light. The flash housing further comprises a lens element having a substantially circular cross-section and being arranged to let at least part of the generated flash light out of the flash housing so as to obtain the flash. The flash housing further comprises a zoom element rotatably arranged at least partly along the circumference of the lens element. The zoom element is operatively connected to the flash forming element so as to control movement of the flash forming element by manual rotation of the zoom element.

A system for controlling a plurality of lighting assemblies and a plurality of imagers configured to capture image data in a plurality fields of an operating region comprises a collapsible armature comprising a plurality of linkages configured to extend between an extended arrangement and a collapsed arrangement. The extended arrangement positions the lighting assemblies in a first spacing, and the collapsed arrangement positions the lighting assemblies in a second spacing. A controller is configured to control lighting emissions from light sources of the lighting assemblies based on the predetermined first spacing and detect at least one object in the fields of view and control the lighting assemblies to illuminate the at least one object.

A multifunctional, wireless, high power LED-based strobe for still and motion photography is disclosed. The device is comprised of an LED lamp having a touch screen, onboard microcontroller, radio wave transmitter and receiver as well as a remote hot shoe The invention is designed to be used with conventional still cameras and movie cameras. An object of the disclosure is to provide a means of customizing lighting conditions manually, automatically and in real time. Several proprietary lamps can also be tailored and controlled by the device.

The present invention is a system and method of operating cellular devices in a synchronized manner. Each of a plurality of mobile cellular devices has a system clock, a display screen, and a camera flash, and each mobile cellular device communicates with a communications network. A software application is loaded onto each of the cellular devices. A primary user selects a session activity that is to be performed by the cellular devices. The cellular devices first update system time to improve time synchronization. At an execution time, a session activity is performed simultaneously by all the mobile cellular devices.