Live mobile streaming applications will be among the most important applications in future wireless multimedia systems. Hence, a Quality of Experience (QoE) assessment control mechanism is an essential requirement to assure the video quality level, whiling maximizing profits to service providers and keeping and attracting new customers. This paper studies the requirements to develop a video artifacts assessment mechanism for live mobile streaming applications, introduce a new assessment solution and no-reference QoE metrics. The proposed schemes are evaluated based on psycho-physical experiments faced with artifacts measurements. The results present the benefits of the assessment mechanism in estimating the quality level of live mobile streaming applications. . .