• The Journal of the Korea Contents Association
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• v.13 no.7
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• pp.70-79
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• 2013

The film language is distinguished roughly according to shot angles and size and camera movement. The film language is what the performer should be well-acquainted with in camera acting. Since the most important characteristics of acting in front of the camera lies in being with the camera, the relationship between the camera and the performers is basically mutual communication and is the inseparable relationship in which they should be well acquainted with each other. Understanding of diverse film languages for acting in front of the camera enables the performer to adapt to the media quickly and to concentrate on acting. Performance changes according to the media or environment in which acting is performed. For a good performance, the performers should be able to appropriately express their own acting according to the characteristics of the space or the media in which they do performance. Acting in front of the camera is clearly distinguished from acting on the stage in the aspects of either media characteristics or acting. With the manifestation of extemporaneousness and the discovery of the performers' personality to the extent possible, performers themselves proceed with creative works in collaboration with the director in acting in front of the camera and can attain the development of acting in front of the camera.

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.2
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• pp.155-160
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• 2014

In this paper, an algorithm using RGB-depth camera is proposed to detect smoke in interrior. RGB-depth camera, the Kinect provides RGB color image and depth information. The Kinect sensor consists of an infra-red laser emitter, infra-red camera and an RGB camera. A specific pattern of speckles radiated from the laser source is projected onto the scene. This pattern is captured by the infra-red camera and is analyzed to get depth information. The distance of each speckle of the specific pattern is measured and the depth of object is estimated. As the depth of object is highly changed, the depth of object plain can not be determined by the Kinect. The depth of smoke can not be determined too because the density of smoke is changed with constant frequency and intensity of infra-red image is varied between each pixels. In this paper, a smoke detection algorithm using characteristics of the Kinect is proposed. The region that the depth information is not determined sets the candidate region of smoke. If the intensity of the candidate region of color image is larger than a threshold, the region is confirmed as smoke region. As results of simulations, it is shown that the proposed method is effective to detect smoke in interior.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.18 no.4
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• pp.1007-1012
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• 2014

This study investigates the basic elements of film acting based on Lee Strasberg's emotional memory. Acting in Korean film and TV drama often meets difficult circumstances. Therefore, I strongly suggest Lee Strasberg' American Method to film actors and students. This method refers to affective memory that Lee Strasberg devised for film acting at the Actors Studio. Another main point of this method is to overcome difficulties created from the camera use and shooting process. It is evident practicing affective memory would help actors perform better in their field.

• The Journal of the Korea Contents Association
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• v.12 no.2
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• pp.154-162
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• 2012

Facial expression and gesture of the actors can be magnified or understated depending on the size of the camera framing. The direction, quality, and quantity of the lighting can also make the actors look different. That's why we have to deliberate how to photograph the actors who will be projected on the screen. This thesis shows the way of improving performance and emphasizing each character with camera and lighting. You will also find out how visual elements influence the actors and their performances.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.1
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• pp.21-26
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• 2015

In this paper, we propose a system which can detect the smoke in real time from the high-quality IP camera. For real-time processing, open directly the RTSP streams transmitted from the IP camera using the library FFmpeg as opening a video file. To recognize smoke, color information and morphological characteristics of smoke, as well as the dynamic characteristics of the smoke also considered for candidate regions. To combine the characteristics of the various smoke effectively, the Adaboost algorithm, was used as the boosting algorithm finally. Through the experiments with input videos from IP camera, the proposed algorithms were useful to detect smokes.

• The Journal of the Korea Contents Association
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• v.16 no.9
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• pp.502-511
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• 2016

This article reviews the film acting studies of Kracauer presenting the basic approach of traditional film theory. It is to provide a foundation for film acting theory in order to activate the domestic acting studies. While Kracauer explaines the difference between traditional stage actor and film actor in 'Remarks on the Actor' of Theory of Film(1960), he suggests the characteristics of the cinema acting and its media technical meanings. He emphasizes the acting forms presenting the postwar new realism in his film acting studies. His approach takes the perspective of 'physical reality' or 'camera reality' which is the basic premise of film theory. Kracauer insists the naturalness of the actors, listing the features of professional actors, non-professional actors and Hollywood stars as they are a familiar classification for the types of actors. He does not prefer the Hollywood stars, whether it is fiction or documentary, professional or non-professional actors, but he emphasizes negative acting, the ability to express words by doing nothing, based on indeterminacy or indefiniteness of the film. Kracauer's film acting studies has affected later film theory and media-related acting, and has become the principles of cinema textbook and acting.

• The Journal of the Korea Contents Association
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• v.12 no.2
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• pp.10-18
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• 2012

Automatic smoke detection systems using a surveillance camera requires a reliable smoke detection method. When an image sequence is captured from smoke spreading over in the air, not only has each smoke image frame a special texture, called static texture, but the difference between two smoke image frames also has a peculiar texture, called dynamic texture. Even though an object has a static texture similar to that of the smoke, its dynamic texture cannot be similar to that of the smoke if its movement differs from the diffraction action of the smoke. This paper presents a reliable smoke detection method using these two textures. The proposed method first detects change regions using accumulated frame difference, and then picks out smoke regions using Haralick features extracted from two textures.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.2
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• pp.372-378
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• 2015

Smoke generated from business establishments and factories will not only cause air pollution but also have a significant impact on the human body. Generally, the most common method for measuring the turbidity of the plume generated from the stack is a method of observing by the transmissometer mounted in the chimney or Method 9 from the US EPA(Environmental Protection Agency) which is a visual method of determining plume turbid emitted from stationary sources. However, these methods need a lot of cost to build and maintain. In this paper, we build a plume turbidity measurement module programs using a digital camera. We design and implement a module which acquires the pictures of the plume using a digital camera and measures the turbidity of it using the DOM(Digital Optical Method). In addition, we demonstrate the excellence by comparing and analyzing implemented module and other methods.

• Fire Science and Engineering
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• v.15 no.1
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• pp.41-46
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• 2001

The flow induced by a vertically impinging circular jet under a horizontal plate is investigated by visualization technique, using kerosene smoke in nitrogen gas to visualize the vortex flow and impinging flow. The light source was the sheet beam of Ar-Ion laser. The vertical and horizontal images scattering of kerosene smoke were recorded by the high speed CCD camera and the video camera. The instantaneous velocity of the vortex and the mean velocity of the smoke front were measured from the acquisited images.

• Journal of the Korea Society of Computer and Information
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• v.16 no.4
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• pp.43-52
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• 2011

With the rapid development of technology, skyscrapers are widely spread and they are tightly coupled. If fire occurs in a building, it is easily spread to neighboring buildings, resulting in the large number of victims and property damages. To remove fire disasters, the need for early fire detection techniques is increasing. To detect fire, detecting devices for heat, smoke, and flame have been used widely. However, this paper surveys and presents the latest research which focuses on early smoke and flame detection algorithms and systems with camera's input images. In addition, this paper implements and evaluates the performance of these flame and smoke detection algorithms with several types of movies.