[Retracted] Sports Video Augmented Reality Real-Time Image Analysis of Mobile Devices

Table 2

Performance comparison of four algorithms.

	SIFT algorithm	PCA-SIFT algorithm	GLOH algorithm	SURF algorithm
Antiscale	Good	Preferably	Good	Commonly
Antirotation	Good	Preferably	Good	Commonly
Antilight	Commonly	Preferably	Commonly	Good
Antiaffine	Preferably	Preferably	Preferably	Commonly
Time efficiency	Commonly	Commonly	Commonly	Good
Universality	Good	Commonly	Commonly	Good