ActionShot is a method of capturing an object in action and displaying it in a single image with multiple sequential appearances of the object. Additional names: action synopsis, motion synopsis, panoramic video synopsis, dynamic still, synopsis mosaic, stromotion.

Background

There are many methods for capturing panoramic images, some being fully manual or semi-automatic, and others completely automatic. However, the majority of these methods are for creating panoramic photos of a static landscape. In contrast, the capture of a dynamic scene — i.e. recording the motion of a moving object — is typically done by

video Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media. Video was first developed for mechanical television systems, which were quickly replaced by cathode-ray tube (CRT) syste ...

recording. ActionShot is a method that combines elements of both panoramic and video photography to create panoramic photos of ''dynamic'' scenes that take place over a wide-angle area. This involves capturing a moving object (e.g. a person running, riding a bicycle or skiing) and depicting multiple instances of this object over a single panoramic background.

Methods

Hardware

Stroboscope A stroboscope, also known as a strobe, is an instrument used to make a cyclically moving object appear to be slow-moving, or stationary. It consists of either a rotating disk with slots or holes or a lamp such as a flashtube which produces br ...

s have been used to create static images of an action. The moving object is illuminated by the periodic light flashes generated by the stroboscope and is shot by a stills camera using a long exposure. This results in a photograph that displays multiple images of the object along its path. ActionShot photography is now available as part of camera application on Samsung Android Galaxy Premium Devices (

Samsung Galaxy S The Samsung Galaxy S is a series of high-end Android phones made by Samsung. It may refer to: * Samsung Galaxy S (2010 smartphone) * Samsung Galaxy II * Samsung Galaxy III * Samsung Galaxy S4 * Samsung Galaxy S4 mini * Samsung Galaxy S5 * Sams ...

and

Samsung Galaxy S2 The Samsung Galaxy S II (or Galaxy S2) is a touchscreen-enabled, slate-format Android smartphone designed, developed, and marketed by Samsung Electronics, as the second smartphone of the Samsung Galaxy S series. It has additional software feat ...

) or by downloading the Nokia Smartcam app on the Microsoft Lumia Phones

Manual image editing

To create a dynamic panoramic image manually, a photographer needs to take several shots or still frames from a high-resolution video of a moving object and then combine them together using manual

image registration Image registration is the process of transforming different sets of data into one coordinate system. Data may be multiple photographs, data from different sensors, times, depths, or viewpoints. It is used in computer vision, medical imaging, milit ...

, followed by manual

image stitching Image stitching or photo stitching is the process of combining multiple photographic images with overlapping fields of view to produce a segmented panorama or high-resolution image. Commonly performed through the use of computer software, most app ...

. Image editing programs can assist in this process.

Automatic image processing

Early digital image processing methods created a "synopsis mosaic" by building a panoramic image a video sequence where higher weights were assigned to the moving objects. However, good image registration and stitching alone were not sufficient for creating a realistic image, because if the moving object overlaps itself, the combined result seems highly unnatural. This in order to create eye-catching synopsis still images, and even videos, the moving objects are required not to overlap in the composed result.Y.Pritch, A.Rav-Acha, S.Peleg
Video Synopsis and Indexing

Related methods

References

External links

ActionShot photos created by Samsung Omnia2 cellphone.

{{DEFAULTSORT:Actionshot Image processing Panorama photography Photography by genre