scholarly journals PEA265: Perceptual Assessment of Video Compression Artifacts

2020 ◽  
Vol 30 (11) ◽  
pp. 3898-3910 ◽  
Author(s):  
Liqun Lin ◽  
Shiqi Yu ◽  
Liping Zhou ◽  
Weiling Chen ◽  
Tiesong Zhao ◽  
...  
Keyword(s):  
Video Compression ◽  
Perceptual Assessment ◽  
Compression Artifacts

scholarly journals Impact of Video Compression and Multimodal Embedding on Scene Description

Electronics ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 963
Author(s):  
Jin Young Lee
Keyword(s):  
Deep Learning ◽  
Video Compression ◽  
Automatic Generation ◽  
Image Motion ◽  
Label Information ◽  
Scene Description ◽  
The Impact ◽  
Potential Issue ◽  
Simple Network ◽  
Compression Artifacts

Scene description refers to the automatic generation of natural language descriptions from videos. In general, deep learning-based scene description networks utilize multimodalities, such as image, motion, audio, and label information, to improve the description quality. In particular, image information plays an important role in scene description. However, scene description has a potential issue, because it may handle images with severe compression artifacts. Hence, this paper analyzes the impact of video compression on scene description, and then proposes a simple network that is robust to compression artifacts. In addition, a network cascading more encoding layers for efficient multimodal embedding is also proposed. Experimental results show that the proposed network is more efficient than conventional networks.

scholarly journals Shooting parameters measuring from videostream during sports competitions

2018 ◽  
Vol 226 ◽  
pp. 05007
Author(s):  
Maxim S. Beloyvanov ◽  
Ilya A. Sadrtdinov
Keyword(s):  
Video Compression ◽  
Video Stream ◽  
False Alarms ◽  
Number Of False Alarms ◽  
Negative Factors ◽  
Compression Artifacts

This paper proposes the method for determining the time and coordinates of hits on targets on the video stream during sports competition. Proposed method allows reduce the number of false alarms of the detector associated with such negative factors at video stream as environment conditions changing, occlusion, video compression artifacts, etc.

scholarly journals Reduction of Video Compression Artifacts Based on Deep Temporal Networks

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 63094-63106 ◽  
Author(s):  
Jae Woong Soh ◽  
Jaewoo Park ◽  
Yoonsik Kim ◽  
Byeongyong Ahn ◽  
Hyun-Seung Lee ◽  
...  
Keyword(s):  
Video Compression ◽  
Temporal Networks ◽  
Compression Artifacts

Instrumental Assessment in Cleft Palate Care

2013 ◽  
Vol 23 (2) ◽  
pp. 49-61 ◽  
Author(s):  
Jamie Perry ◽  
Graham Schenck
Keyword(s):  
Cleft Palate ◽  
New Developments ◽  
Perceptual Evaluation ◽  
Advantages And Disadvantages ◽  
Instrumental Assessment ◽  
Speech Language Pathologist ◽  
Hypernasal Speech ◽  
Perceptual Assessment ◽  
Velopharyngeal Function ◽  
And Function

Despite advances in surgical management, it is estimated that 20–30% of children with repaired cleft palate will continue to have hypernasal speech and require a second surgery to create normal velopharyngeal function (Bricknell, McFadden, & Curran, 2002; Härtel, Karsten, & Gundlach, 1994; McWilliams, 1990). A qualitative perceptual assessment by a speech-language pathologist is considered the most important step of the evaluation for children with resonance disorders (Peterson-Falzone, Hardin-Jones, & Karnell, 2010). Direct and indirect instrumental analyses should be used to confirm or validate the perceptual evaluation of an experienced speech-language pathologist (Paal, Reulbach, Strobel-Schwarthoff, Nkenke, & Schuster, 2005). The purpose of this article is to provide an overview of current instrumental assessment methods used in cleft palate care. Both direct and indirect instrumental procedures will be reviewed with descriptions of the advantages and disadvantages of each. Lastly, new developments for evaluating velopharyngeal structures and function will be provided.

What Have We Learned From Physiological Approaches to Characterizing Dysarthria and Other Speech Production Disorders?

2010 ◽  
Vol 20 (2) ◽  
pp. 37-46
Author(s):  
Nicole M. Etter
Keyword(s):  
Speech Production ◽  
Speech Disorders ◽  
Research Literature ◽  
Systematic Research ◽  
Physiological Measures ◽  
Validity And Reliability ◽  
Assessment Measures ◽  
Perceptual Assessment ◽  
Perceptual Characteristics ◽  
Diagnostic Resolution

Traditionally, speech-language pathologists (SLP) have been trained to develop interventions based on a select number of perceptual characteristics of speech without or through minimal use of objective instrumental and physiologic assessment measures of the underlying articulatory subsystems. While indirect physiological assumptions can be made from perceptual assessment measures, the validity and reliability of those assumptions are tenuous at best. Considering that neurological damage will result in various degrees of aberrant speech physiology, the need for physiologic assessments appears highly warranted. In this context, do existing physiological measures found in the research literature have sufficient diagnostic resolution to provide distinct and differential data within and between etiological classifications of speech disorders and versus healthy controls? The goals of this paper are (a) to describe various physiological and movement-related techniques available to objectively study various dysarthrias and speech production disorders and (b) to develop an appreciation for the need for increased systematic research to better define physiologic features of dysarthria and speech production disorders and their relation to know perceptual characteristics.

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