Phân tích cấu trúc câu, tác động đến mức độ chính xác dịch tài liệu?

1. Most of video-surveillance based applications use a foreground extraction algorithm to detect interest objects from videos provided by static cameras. 

- Cấu trúc: use sth to do sth from sth by sth

- Động từ chính: use to do

2. This paper presents a benchmark dataset and evaluation process built from both synthetic and real videos, used in the BMC work-shop (Background Models Challenge). 

- Động từ chính: present

3. This dataset focuses on outdoor situations with weather variations such as wind, sun or rain. 

- Động từ chính: focus

4. Moreover, we propose some evaluation criteria and an associated free software to compute them from several challenging testing videos. 

- Cấu trúc: do sth to do sth

- Động từ chính: propose to compute

5. The evaluation process has been applied for several state of the art algorithms like gaussian mixture models or codebooks.

- Động từ chính: apply

6.   This paper proposes a set of both synthetic and real video and several performance evaluation criteria in order to evaluate and rank background/foreground algorithms.

- Cấu trúc: propose sth in order to do sth (đề xuất cái gì để làm gì?)

7. some difficulties encountered during something
Một vài khó khăn gặp phải trong khi sth