Search for dissertations about: "video analysis"

Showing result 1 - 5 of 356 swedish dissertations containing the words video analysis.

  2. 1. Very Low Bitrate Video Communication : A Principal Component Analysis Approach

    Author : Ulrik Söderström; Haibo Li; Luis Torres; Umeå universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Video compression; Very low bitrate; Principal component analysis; Complexity; Semantically important areas; Wearable video; Other electrical engineering; electronics and photonics; Övrig elektroteknik; elektronik och fotonik;

    Abstract : A large amount of the information in conversations come from non-verbal cues such as facial expressions and body gesture. These cues are lost when we don't communicate face-to-face. But face-to-face communication doesn't have to happen in person. With video communication we can at least deliver information about the facial mimic and some gestures. READ MORE

  4. 2. Very low bitrate facial video coding : based on principal component analysis

    Author : Ulrik Söderström; Haibo Li; Umeå universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Image processing; Video processing; Very low bitrate coding; Other electrical engineering; electronics and photonics; Övrig elektroteknik; elektronik och fotonik;

    Abstract : This thesis introduces a coding scheme for very low bitrate video coding through the aid of principal component analysis. Principal information of the facial mimic for a person can be extracted and stored in an Eigenspace. Entire video frames of this persons face can then be compressed with the Eigenspace to only a few projection coefficients. READ MORE

  5. 3. Application of automated video analysis to road user behaviour

    Author : Aliaksei Laureshyn; Trafik och väg; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; safety indicators; traffic safety; traffic conflicts; Video analysis; road user behaviour;

    Abstract : The successful planning, design and management of a traffic system is impossible without knowledge of how the traffic environment affects the behaviour of road users and how the behaviour is related to the main qualities of the traffic system (e.g. safety, efficiency). READ MORE

  6. 4. Video-supported Interactive Learning for Movement Awareness : a learning model for the individual development of movement performance among nursing students

    Author : Sofia Backåberg; Mikael Rask; Christina Gummesson; David Brunt; Jennifer Bullington; Linnéuniversitetet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Activity limitation; ergonomics; hermeneutics; interactive learning; musculoskeletal system; observational movement analysis; phenomenological hermeneutics; qualitative content analysis; reflection; video feedback; Vårdvetenskap; Caring Science;

    Abstract : Aim:  The overall aim of this thesis was to explore the development of a video-supported interactive learning model for movement awareness among nursing students.Methods:  Study I was a cross-sectional survey regarding prevalence and impact of musculoskeletal symptoms (MSS) among nursing students. READ MORE

  7. 5. Image Reconstruction and Optical Flow Estimation on Image Sequences with Differently Exposed Frames

    Author : Tomas Bengtsson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multiple camera settings; human visual system; super-resolution; optical flow; high dynamic range; digital camera system; image reconstruction; motion analysis; inverse problem;

    Abstract : The main objective for digital image- and video camera systems is to reproduce a real-world scene in such a way that a high visual quality is obtained. A crucial aspect in this regard is, naturally, the quality of the hardware components of the camera device. There are, however, always some undesired limitations imposed by the sensor of the camera. READ MORE