Review article of American Journal of Scientific Research and Essays
Finding Waldo: Two Routes for Processing Visual Search in Complex Scenic Images
This paper reviews the cognitive mechanisms underlying visual search in complex visual images. Visual search is a type of task that we are constantly engaged in our everyday lives. Here, the current paper introduces the current literature that suggests that there are two different processing routes that support visual search in human observers: Bottom-up and Top-down processing. Bottom-up processing allows the visual system to process the sensory information from the visual image as it is, whereas top-down processing guides the visual system to efficiently allocate attention to a part of the image to facilitate the search process. The two processing routes via bottom-up and top-down processing work in concert during complex visual search, guiding our search behavior to be more efficient and adaptive. In closing remark, this review also briefly discusses how the current knowledge about the roles of bottom-up and top-down processing in visual search can contribute to development of computer vision and artificial intelligent.
Keywords: Two Routes, Processing Visual Search, Complex Scenic Images
How to cite this article:
Andrew Hwang. Finding Waldo: Two Routes for Processing Visual Search in Complex Scenic Images. American Journal of Scientific Research and Essays, 2019 4:24. DOI:10.28933/ajsre-2019-09-1405
1. Wolfe, J. M. (1998). What Can 1 Million Trials Tell Us About Visual Search? Psychological Science, 9(1), 33-39. doi:10.1111/1467-9280.00006.
2. Schweizer, K. (1998). Visual search, reaction time, and cognitive ability. Perceptual and Motor Skills, 86(1), 79-84.
3. Rayner, K. (2009). Eye movements and attention in reading, scene perception, and visual search. The Quarterly Journal of Experimental Psychology, 62,1457-1506.
4. Wu, C. C., & Wolfe, J. M. (2019). Eye Movements in Medical Image Perception: A Selective Review of Past, Present and Future. Vision, 3:32
5. Luck, S. J., & Hillyard, S. A. (1994). Spatial filtering during visual search: Evidence from human electrophysiology. Journal of Experimental Psychology: Human Perception and Performance, 20(5), 1000-1014. doi:10.1037/0096-15184.108.40.2060.
6. Sobel, K. V., Gerrie, M. P., Poole, B. J., & Kane, M. J. (2007). Individual differences in working memory capacity and visual search: The roles of top-down and bottom-up processing. Psychonomic Bulletin & Review, 14(5), 840-845.
7. Itti, L., & Koch, C. (2000). A saliency-based search mechanism for overt and covert shifts of visual attention. Vision Research, 40, 1489-1506.
8. van Zoest W, Donk M. Bottom-up and top-down control in visual search. Perception. 2004; 33(8). 927-937.