Article
Method for Viewing Real-World Scenes while Recording Video
Daehee Park * and Cheoljun Lee
Citation: Park, D.; Lee, C. Method
for Viewing Real-World Scenes while
Recording Video. Appl. Sci. 2021, 11,
4617. https://doi.org/10.3390/
app11104617
Academic Editor: João Carlos de
Oliveira Matias
Received: 27 April 2021
Accepted: 16 May 2021
Published: 18 May 2021
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4.0/).
Samsung Research, Seoul 06765, Korea; cheoljun.lee@samsung.com
* Correspondence: daehee0.park@samsung.com
Abstract:
Because smartphones support various functions, they are carried by users everywhere.
Whenever a user believes that a moment is interesting, important, or meaningful to them, they can
record a video to preserve such memories. The main problem with video recording an important
moment is the fact that the user needs to look at the scene through the mobile phone screen rather
than seeing the actual real-world event. This occurs owing to uncertainty the user might feel when
recording the video. For example, the user might not be sure if the recording is of high-quality
and might worry about missing the target object. To overcome this, we developed a new camera
application that utilizes two main algorithms, the minimum output sum of squared error and the
histograms of oriented gradient algorithms, to track the target object and recognize the direction of
the user’s head. We assumed that the functions of the new camera application can solve the user’s
anxiety while recording a video. To test the effectiveness of the proposed application, we conducted a
case study and measured the emotional responses of users and the error rates based on a comparison
with the use of a regular camera application. The results indicate that the new camera application
induces greater feelings of pleasure, excitement, and independence than a regular camera application.
Furthermore, it effectively reduces the error rates during video recording.
Keywords: smart cameras; HCI; affective design
1. Introduction
Since the first versions of Apple’s iPhone and Samsung’s Galaxy S series smartphones
were first released globally, they have become extremely popular and important devices
in daily life [
1
]. In 2009, smartphone penetration in the US was 25%, and 14% of the
mobile phones shipped worldwide were smartphones [
2
]. Furthermore, the number of
smartphones sold to end users worldwide has increased dramatically from 2007 to 2020,
expanding from 122 million to 1.56 billion devices sold [
3
]. Smartphone technologies
have been evolving through several device generations, and cameras have increased in
importance and are currently regarded as a marketing tool to attract customers [
4
]. Because
smartphones can achieve various functions, people use them frequently and carry them
almost everywhere. One of the important functions of a smartphone is photography. People
use their smartphones whenever they want to capture a moment that has an important
meaning to them. Thus, relevant camera technologies have evolved to record everyday
moments with high quality [
2
]. However, one significant problem when recording video of
an important event is the fact that the user generally views the scene recorded through the
mobile phone screen rather than the actual real life event itself (see Figure 1).
For example, when recording a dance performance, the user will likely focus on
the mobile phone screen rather than the actual live dancing owing to concerns with the
video recording. This occurs because the system cannot identify the user’s intention when
recording a video. As a result, when recording, the user should focus on the mobile phone
screen, and the user cannot perceive the real world directly. In addition, at that time, the
user may have an unpleasant or out-of-control feeling in terms of affection because the user
cannot see the real-world event and cannot be confident of the quality of the recording.
Appl. Sci. 2021, 11, 4617. https://doi.org/10.3390/app11104617 https://www.mdpi.com/journal/applsci
