• Title/Summary/Keyword: Visual response

Search Result 694, Processing Time 0.027 seconds

A Study on Image Recognition by Orientation Information (방향정보처리에 의한 영상 인식에 관한 연구)

  • Cho, Jae-Hyun;Kim, Jin-Hwan;Lee, Jong-Hee
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.13 no.11
    • /
    • pp.2283-2288
    • /
    • 2009
  • There are a lot of characteristics in Human visual information processing when image information is transmitted from retina to visual cortex. Among them, we analyze the sensibility of the orientation and cortical magnification on an image. The fact that the small fovea is allotted a large area on the cortex is called the cortical magnification factor. We compare recognition rates by weight of vertical, horizontal and diagonal response. In statistics analysis, we show that a particular simple cell responds best to a bar with a vertical orientation. After then, we will apply the characteristics to Human visual system.

Visual Fatigue Prediction for Stereoscopic Video Considering Individual Fusional Characteristics (시청자의 입체시 특성을 고려한 3D 비디오의 피로도 예측)

  • Kim, Dong-Hyun;Choi, Sung-Hwan;Sohn, Kwang-Hoon
    • Journal of Broadcast Engineering
    • /
    • v.16 no.2
    • /
    • pp.331-338
    • /
    • 2011
  • In this paper, we propose a visual fatigue prediction metric which considers individual fusional characteristics for stereoscopic video. It predicts the visual fatigue level by examining the disparity and motion characteristics of 3D videos. In addition, we classified the viewers into 2 groups according to fusional limit and the slope of fusional response which are acquired from random dot stereogram test. Then, Pearson's and Spearman's correlation coefficient was measured between the proposed metrics and the subjective results, acquiring 80% and 79%.

A Study or the Analysis of EEG Evoked by Visual Stimulation using Wavelet Transformation. (Wavelet변환을 이용한 시각자극에 의해 유발되는 뇌파의 분석에 관한 연구)

  • Kim, J.H.;Whang, M.C.;Im, J.J.
    • Proceedings of the KOSOMBE Conference
    • /
    • v.1997 no.11
    • /
    • pp.455-458
    • /
    • 1997
  • We are exposed to the various external stimuli input from the environment, which cause emotional changes based on the characteristics of the stimuli. Unfortunately, there are no quantitative results on relationship between human sensibility and the characteristics of physiological signals. The objective of this study was to quantify EEG signals evoked by visual stimulation based on the assumption that the analysis of the variability on the characteristics of the EEG waveform may provide the significant information regarding changes in psychological states of the subject. Seven university students were participated in this study. The experiment was devised with eleven experimental conditions, which are control and ten different types of visual stimulation based on IAPS (International Affective Picture Systems). Wavelet transformation was employed to analyze the EEG signals. Most positive and negative emotional response were compared in pairs. The results showed that the reconstructed signals at the decomposition level revealed the different energy value on the EEG signals. Also, general patterns of EEG signals in rest state compare with positive and negative stimulus were found. This study could be extended to establish an algorithm which distinguishes psychophysiological states of the subjects exposed to the visual stimulation.

  • PDF

Consumer Evaluation on Visual Sensibility of Stripe Pattern Shirts - Focusing on Separation Coloration - (줄무늬 셔츠의 시각적 감성에 대한 소비자 평가 - 세퍼레이션 배색을 중심으로 -)

  • Choi, Soo-Kyoung
    • Journal of the Korea Fashion and Costume Design Association
    • /
    • v.16 no.2
    • /
    • pp.71-80
    • /
    • 2014
  • The purpose of this study was to investigate consumer evaluation on visual sensibility of stripe pattern shirts for separation coloration. The experimental materials developed for this study were a set of clothing stimuli and response scales. The clothing stimuli were 27 color pictures, in which separation color(white: W, gray: G, black: B), separation width(small: S, medium: M, large: L), and combination color(magenta and yellow: MY, magenta and cyan: MC, yellow and cyan: YC) were manipulated. The subjects of this research were female in their 20s to 30s living in Seoul, Gwangju, Daegu, Busan, and Changwon. The investigation was carried out at December 2013. The data were analyzed by using SPSS program. Analysis methods were factor analysis, ANOVA, and Duncan-test. Results of this study were as follow.; The factors of visual sensibility according to separation color, separation width, and combination color consisted of four dimensions of attractiveness, appeal, individuality freshness, and grace. Separation color showed an independent effect on appeal and individuality freshness. Combination color showed an independent effect on individuality freshness. Interaction effects of separation color and separation width on appeal were found. Interaction effects of separation color and combination color on individuality freshness and grace were found. The study results are highly expected to be used as useful sources in a fashion product.

  • PDF

Consistency of Responses to Affective Stimuli Across Individuals using Intersubject Representational Similarity Analysis based on Behavioral and Physiological Data (참가자 간 표상 유사성 분석을 이용한 정서 자극 반응 일치성 비교: 행동 및 생리 데이터를 기반으로)

  • Junhyuk Jang;Hyeonjung Kim;Jongwan Kim
    • Science of Emotion and Sensibility
    • /
    • v.26 no.3
    • /
    • pp.3-14
    • /
    • 2023
  • This study used intersubject representational similarity analysis (IS-RSA) to identify participant-response consistency patterns in previously published data. Additionally, analysis of variance (ANOVA) was utilized to detect any variations in the conditions of each experiment. In each experiment, a combination of ASMR stimulation, visual and auditory stimuli, and time-series emotional video stimulation was employed, and emotional ratings and physiological measurements were collected in accordance with the respective experimental conditions. Every pair of participants' measurements for each stimulus in each experiment was correlated using Pearson correlation coefficient as part of the IS-RSA. The results of study revealed a consistent response pattern among participants exposed to ASMR, visual, and auditory stimuli, in contrast to those exposed to time-series emotional video stimulation. Notably, the ASMR experiment demonstrated a high level of response consistency among participants in positive conditions. Furthermore, both auditory and visual experiments exhibited remarkable consistency in participants' responses, especially when subjected to high arousal levels and visual stimulation. The findings of this study confirm that IS-RSA serves as a valuable tool for summarizing and presenting multidimensional data information. Within the scope of this study, IS-RSA emerged as a reliable method for analyzing multidimensional data, effectively capturing and presenting comprehensive information pertaining to the participants.

Analysis of Tangible and Intangible Attributes in Foodservice products by IPA - Focus on Dumpling shops - (IPA (Importance-Performance Analysis)를 활용한 유무형 외식 상품 속성 연구 - 만두전문점을 중심으로 -)

  • Oh, Ji Eun;Cho, Mi Sook
    • Journal of the Korean Society of Food Culture
    • /
    • v.31 no.2
    • /
    • pp.149-160
    • /
    • 2016
  • This study utilized importance and performance analysis (IPA) in order to improve and plan tangible (menu) and intangible (service) products at dumpling shops. Menu attributes for tangible products were classified into sensory factor, health factor, hygiene factor, and external factor. Attributes for intangible products were classified into response factor, visual factor, spatial factor, package factor, and promotion factor. In IPA analysis of tangible products, sensory factor and hygiene factor were located in Quadrant I (Keep up the good work). Health factor was located in Quadrant III (Low priority for management) and the external factor was located in Quadrant II (Possible overkill). In IPA analysis of intangible products, response factor and visual factor were located in Quadrant I, whereas promotion factor was located in Quadrant III. The attributes related to kindness of staff and space for customers in the store were more important, but due to their low performance level, they were located in Quadrant IV (Concentrate management here). Thus, the product planner should improve attributes of the related product immediately. As a result, the development of competitive products within the market is possible.

A Visual Image Perception of Clothing Colors, Color combinations of Korean Traditional Dress for Woman(Part 2) (복식색과 색조합의 이미지 지각(제2 보)-여자 한복의 상.하 색조합 효과를 중심으로-)

  • 이혜숙;김재숙
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.22 no.8
    • /
    • pp.1052-1059
    • /
    • 1998
  • The purposes of the study were to analyse the colors and, color combinations effect on the image perception using gestalt theory. The research method was a quasi-experimental with a between subjects design. The experimental materials developed for the study were a set of stimuli and a response scale. The stimuli was consisted of 17 drawings of females wearing Korean traditional dress, by using CAD simulation. A response scale consisted of semantic differential scales. The subjects were 1138 undergraduate students of Taejon city, Chungnam province and Chungbuk province. Their responses to the semantic differential scales were analyzed using factor analysis, ANOVA, Duncans multiple range test. Results were as follows; 1) The colors effect of blouse was significantly greater than the effect of skirt, and no interaction effect was found between blouse colors and skirt colors. 2) In bi-color combination dress set, the combined image of the two colors were compared to the image of the two mono color sets: No single principle was found, however, salient color (such as yellow) and unattractive color (such as green) seemed to act as central trait colors on the image perception. On conclusion the visual image of Korean traditional dress wearer was affected by central trait colors in bi-color combination, and this results support the gestalt theory with central traits.

  • PDF

Effects of Stimulus Incongruity on the Galvanic Skin Response of Children and Adults (불일치(不一致) 자극(刺戟)이 아동(兒童)과 성인(成人)의 전기피부반응(電氣皮膚反應)(Galvanic Skin Response)에 미치는 효과(效果))

  • Sung, Sook Ja
    • Korean Journal of Child Studies
    • /
    • v.2
    • /
    • pp.31-39
    • /
    • 1981
  • Despite evidence from adults that stimulus incongruity increased arousal level, there have been no published reports demonstrating this relationship with children. Therefore, the present study was done to 1) investigate the relationship between the introduction of stimulus incongruity and children's arousal level, using the GSR as an index of arousal; 2) determine whether age difference among subjects would affect the magnitude of the effect of incongruity on GSR ; and 3) determine the feasility of using the GSR with young children, particularly when manipulating a variable considered to involve only modest increase in arousal. The results were: 1) The incongrous outcome of two brief stories increased the arousal level of the subjects in the present study 2) The effect was related primarily in the GSR arousal scores of adult subjects. The smaller or nonexistent reactions to incongruity by the children represent essentially new results, as little or previous research exists involving the arousal level of young children to visual or auditorily presented stimuli. Several possibilities regarding the failure of the incongruity to generate arousal in the young children were considered Methodolog both in using GSR as an index of arousal level and in developing visual or audio stimuli involving incongruity was discussed.

  • PDF

Policy Design for Value Added Enhancement of Visual Content Industry (영상산업의 부가가치 제고를 위한 정책디자인 방향)

  • Jeong, Bong-Keum;Lim, Jung-Hee;Chung, Jean-Hun
    • Journal of Digital Convergence
    • /
    • v.11 no.12
    • /
    • pp.697-708
    • /
    • 2013
  • This study suggests the need of 'policy design' that aims to develop visual contents with competitiveness in a global market by comparing and analyzing the programs of promoting the visual content industry of each local government. Moreover it focuses to derive a policy implication so that the local government in its role could develop and promote programs of the industry to enhance its competitiveness. The scope of the study covers local governments of the national capital region and the five metropolitan cities of Korea. The support programs on the visual content industry have been compared and analyzed in 2012. A case study of the policy program of the UK, USA and France has been conducted. In conclusion, we must recognize visual industry as regional strategic industry. The policy orientation, organizations and the scale of support should be designed to make the most of regional characteristics and lead to sustainable growth in response to a rapidly changing IT convergence technology and the new digital environment.

Unconscious Signs in Visual Signification of Lacan's Metaphor (라캉 은유의 시각적 의미작용을 통한 무의식적 기호 연구)

  • Park, Sang-Hyeok
    • The Journal of the Korea Contents Association
    • /
    • v.15 no.4
    • /
    • pp.88-96
    • /
    • 2015
  • The universe of discourse presented in the visual image is bound up with the experience and culture of parties; its sender and recipient. Signification of visual message is revealed through the mutual independent process. The mechanism where production of signifiant by sender and reception of metaphoric signifiant function unconsciously can be applied to Lacan's theory;"The unconscious is structured like a language". By applying Lacan's metaphoric formula which takes linguistic approach to visual image it is suggested that analysis of signification is possible. This analysis can be a base for seeking varied level of signifiant presented in visual metaphor logically and practically. Metaphoric structure of the signifiant and the matrix analysis can develop a creative idea and propose a practical way for the visual image production. Thus empirical study about nastic response and the future analysis result is expected to be possible.