Welcome to the Sentinel Hub webinar presenting Data Fusion (2:57), Mosaicking and Metadata (17:00), and MultiTemporal Scripts (28:34), held live on February 25th 2021. Use the timestamps to navigate and see the relevant links below.
The content of the Custom Script webinar (   • Sentinel Hub Webinar: Custom Scripts  ) and the Process API webinar (   • Sentinel Hub Webinar: Process API  ) is a prerequisite for this webinar.

0:00 Intro
0:32 Agenda

PART 1: Data Fusion
2:57 Data fusion documentation
4:12 See through clouds data fusion introduction
4:51 How to set up data fusion in EO Browser
8:32 See through clouds data fusion analysis
11:34 Sending data fusion requests with Requests Builder
14:09 Data fusion examples

PART 2: Mosaicking and Metadata
17:00 Why we need to understand mosaicking
17:25 Mosaicking documentation
17:47 Tiles and acquisition dates
18:56 Samples
20:26 Mosaicking SIMPLE
22:56 Multiple acquisitions per pixel
23:33 Mosaicking TILE
26:39 Mosaicking ORBIT

PART 3: MultiTemporal Scripts
28:34 The simplest multitemporal script
29:58 Javascript Objects
31:47 Scenes and scene metadata
33:41 Multitemporal script analysis: Average NDVI for 1 month
34:56 Useful Javascript methods
36:35 Continuing the multitemporal script analysis: Average NDVI for 1 month
39:14 Combining the 3 average NDVI months into one script to see the changes in NDVI
42:15 Introduction to a scene filtering function preProcessScenes
47:31 Filtering function examples (the last example at 52:17)
51:13 Multitemporal script examples
52:17 preProcessScene example: filtering to take previous 3 months
52:38 Continuing with multitemporal script examples

Q&A at 53:19
53:40 What kind of image fusion is used here? + How is it possible to fuse SAR and multispectral imagery?
54:52 Which method of mosaicking would you recommend for use?
55:21 Can we return many parameters at the same time with the object?
57:36 Is there some way to extract and record the pixel values, such as numeric value of NDVI for example in a specific area of interest?
58:28 Are there certificates for webinar attendees available?
58:43 What type of account is necessary for accessing all the functionalities? Are any subsidies for research available?
59:15 About data fusion: when there was cloud, from where did you get the Sentinel1 to RGB relationships? (here it was R= 3*VV, G = 1.1*VV + 8.75*VH, B = 1.75*VV)
1:00:56 What level of technical support is provided to Enterprise subscribers?
1:01:27 I want to know if all the calculations are done on DN values and calibrated values?
1:02:03 Can you add a pixel inspector like Google Earth Engine?
1:02:35 Does the Sentinel Hub JavaScript platform support machine learning algorithms?

Use our Forum for additional questions! ➡ https://forum.sentinelhub.com/

Additional Notes:
The evaluatePixel function runs per each pixel and writes a new value to each pixel.
The preProcessScenes function is run at the beginning of a script and limits the scenes the script takes into account. It can lower processing time and the amount of processing units used.
Data fusion only works with process API, and thus cannot be used in the Configuration Utility layers. Multitemporal scripts can be used in the Configuration Utility layers, as they work with OGC as well.
For data fusion, check also the process API webinar, the Python part (   • Sentinel Hub Webinar: Process API  , where you can see how to run any data fusion script in Python.

Documentation:
Sentinel Hub https://docs.sentinelhub.com/api/lat...
Data Fusion https://docs.sentinelhub.com/api/lat...
Mosaicking https://docs.sentinelhub.com/api/lat...
PreProcessScenes function https://docs.sentinelhub.com/api/lat...
Data https://docs.sentinelhub.com/api/lat...
Evalscript V3 https://docs.sentinelhub.com/api/lat...

Useful Links:
Data Fusion blog post   / datafusioncombinesatellitedatasetsto...  
Introduction to custom scripts https://www.sentinelhub.com/develop/...
Custom Script Repository https://customscripts.sentinelhub.com/
Requests Builder https://apps.sentinelhub.com/request...
EO Browser https://apps.sentinelhub.com/eobrow...
Get a free SH account and commercial data https://www.sentinelhub.com/Network...

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