Questions on Detecting Flickers in Photographs and Videos
Basic question
1.Was it harder for you detect a scene change in the trials with or without a flicker between photographs? Does your data support your evalution ?Explain.
It is hard for me to detect a scene change with a flicker between photographs .Ya my data support my evalution. In my data,I made a mistake for the flicker condition (0.875 prpportion correct) and the reaction time for me to see the scene change with flicker (7659.7144) slower than the scene change without flicker (5755.75).
2.What effect does the flicker have on attention? The flicker condition is the blank gray box appeared in between the pictures.We have to search the scene ,object by object until the changed object was found so we need more attention to detect the changed object.
3.What type of search strategy is commonly used in the no-flicker condition? What type of search strategy is commonly used in the flicker condition?
Type of search strategy is commonly used in the no-flicker condition is the search for the local-motion signal that is caused by the change of an object. In this condition, the changing object is easy to identify. Type of search strategy that commonly used in the flicker condition is searching the scene, object by object until the changed object was found.
Advanced question
1.Why is reaction-time reported with your experimental results, instead of just reporting your percent correct?
The reaction time reported with our experimental results is to show how long and difficult that it took to identify the scene change.The slower the reaction time ,the more difficult to identify the scene change.
2.Which condition of the demonstration is equivalent to the following driving situations: looking down to turn the radio station, picking up your cell phone, or checking your speedometer? What types of problems can arise from these behaviors?
Flicker condition.Car accident can arise from these behaviors. It is because when people look away from the road to look at something
1.Was it harder for you detect a scene change in the trials with or without a flicker between photographs? Does your data support your evalution ?Explain.
It is hard for me to detect a scene change with a flicker between photographs .Ya my data support my evalution. In my data,I made a mistake for the flicker condition (0.875 prpportion correct) and the reaction time for me to see the scene change with flicker (7659.7144) slower than the scene change without flicker (5755.75).
2.What effect does the flicker have on attention? The flicker condition is the blank gray box appeared in between the pictures.We have to search the scene ,object by object until the changed object was found so we need more attention to detect the changed object.
3.What type of search strategy is commonly used in the no-flicker condition? What type of search strategy is commonly used in the flicker condition?
Type of search strategy is commonly used in the no-flicker condition is the search for the local-motion signal that is caused by the change of an object. In this condition, the changing object is easy to identify. Type of search strategy that commonly used in the flicker condition is searching the scene, object by object until the changed object was found.
Advanced question
1.Why is reaction-time reported with your experimental results, instead of just reporting your percent correct?
The reaction time reported with our experimental results is to show how long and difficult that it took to identify the scene change.The slower the reaction time ,the more difficult to identify the scene change.
2.Which condition of the demonstration is equivalent to the following driving situations: looking down to turn the radio station, picking up your cell phone, or checking your speedometer? What types of problems can arise from these behaviors?
Flicker condition.Car accident can arise from these behaviors. It is because when people look away from the road to look at something