# US 11,910,110 B2 · Transfer control device, image processing device, transfer control method, and program

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- Number: US 11,910,110 B2
- Document ID: US11910110B2
- Status: Granted
- Kind: B2
- Application number: 17/634,048
- Filed: 2019-08-20
- Published: 2022-10-13
- Granted: 2024-02-20
- Earliest claimed: 2019-08-20
- Assignees: Sony Interactive Entertainment Inc.
- Applicants: Sony Interactive Entertainment Inc.
- Inventors: Yosuke Kurihara; Hiromasa Naganuma; Masakazu Hayashi
- Web page: https://patentgrep.com/patent/US11910110B2

## CPC

- H04N 19/137: Motion inside a coding unit, e.g. average field, frame or block difference
- H04N 25/713: Transfer or readout registers; Split readout registers or multiple readout registers
- H04N 17/002: {for television cameras}
- H04N 19/46: Embedding additional information in the video signal during the compression process (H04N19/517, H04N19/68, H04N19/70 take precedence)
- H04N 19/503: involving temporal prediction (adaptive coding with adaptive selection between spatial and temporal predictive coding H04N19/107; adaptive coding with adaptive selection among a plurality of temporal predictive coding modes H04N19/109)
- H04N 19/597: specially adapted for multi-view video sequence encoding
- H04N 23/10: for generating image signals from different wavelengths
- H04N 25/47: Image sensors with pixel address output; Event-driven image sensors; Selection of pixels to be read out based on image data
- H04N 25/77: Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
- H04N 23/71: Circuitry for evaluating the brightness variation
- H04N 25/134: {based on three different wavelength filter elements}
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A transfer control device includes a difference identifying section which identifies, for a first and second images sequentially captured by synchronous scanning, a difference region of the second image, on the basis of an event signal indicating a change in intensity of light generated in one or a plurality of pixels of each of the first and second images during a time period from capturing of the first image to capturing of the second image; and a transfer control section which executes data transfer different between the difference region and regions other than the difference region, for the second image.

## Claims

### Claim 1

A transfer control device comprising:
a difference identifying circuit which operates to identify, for a first and second images sequentially captured by synchronous scanning, a difference region of the second image, on a basis of an event signal indicating a change in intensity of light generated in one or a plurality of pixels of each of the first and second images during a time period from capturing of the first image to capturing of the second image; and
a transfer control circuit which operates to execute data transfer differently between the difference region and regions other than the difference region, for the second image,
wherein when the different data transfer results in an image being restored using data of the first image and data of the difference region, the difference identifying circuit operates to identify, for a subsequent image captured by synchronous scanning, a difference region of the subsequent image with respect to the restored image.

### Claim 2 (depends on 1)

The transfer control device according to claim 1, wherein the transfer control circuit operates to execute data transfer in the difference region and to not execute data transfer in the regions other than the difference region, for the second image.

### Claim 3 (depends on 1)

The transfer control device according to claim 1, wherein the transfer control circuit operates to execute data transfer in the difference region in a first mode and to execute data transfer in the regions other than the difference region in a second mode having a higher compression ratio than the first mode, for the second image.

### Claim 4 (depends on 1)

The transfer control device according to claim 1, wherein the transfer control circuit operates to execute data transfer to an external device.

### Claim 5 (depends on 1)

The transfer control device according to claim 1, wherein the transfer control circuit executes data transfer to a memory included in the transfer control device.

### Claim 6

An image processing device comprising:
a data receiving circuit which operates to receive, for a first image captured by synchronous scanning and a second image captured subsequent to the first image by synchronous scanning, data on a difference region of the second image with respect to the first image, the first and second images being immediately sequential frames of a captured video in which the images and additional frames are captured at a constant time interval; and
an image restoring circuit which operates to restore the entire second image on a basis of data on the entire first image and the data on the difference region,
wherein when the different data results in an image being restored using data of the first image and data of the difference region, the data receiving circuit operates to receive, for a subsequent image captured by synchronous scanning, a difference region of the subsequent image with respect to the restored image.

### Claim 7

A transfer control method comprising:
identifying, for a first and second images sequentially captured by synchronous scanning, a difference region of the second image, on a basis of an event signal generated in response to a change in intensity of light generated in one or a plurality of pixels of each of the first and second images during a time period from capturing of the first image to capturing of the second image; and
executing data transfer differently between the difference region and regions other than the difference region, for the second image,
wherein when the different data transfer results in an image being restored using data of the first image and data of the difference region, the identifying includes identifying, for a subsequent image captured by synchronous scanning, a difference region of the subsequent image with respect to the restored image.

### Claim 8

A non-transitory, computer readable storage medium containing a program, which when executed by a computer, causes the computer to perform a transfer control method by carrying out actions, comprising:
identifying, for a first and second images sequentially captured by synchronous scanning, a difference region of the second image, on a basis of an event signal generated in response to a change in intensity of light generated in one or a plurality of pixels of each of the first and second images during a time period from capturing of the first image to capturing of the second image; and
executing data transfer differently between the difference region and regions other than the difference region, for the second image,
wherein when the different data transfer results in an image being restored using data of the first image and data of the difference region, the identifying includes identifying, for a subsequent image captured by synchronous scanning, a difference region of the subsequent image with respect to the restored image.
